0001473844 2025 FY False http://fasb.org/us-gaap/2025#InterestReceivable P7Y http://fasb.org/us-gaap/2025#PropertyPlantAndEquipmentNet http://fasb.org/us-gaap/2025#PropertyPlantAndEquipmentNet http://fasb.org/us-gaap/2025#OtherLiabilities http://fasb.org/us-gaap/2025#OtherLiabilities http://fasb.org/us-gaap/2025#InterestReceivable http://xbrl.sec.gov/country/2025#US http://xbrl.sec.gov/country/2025#US http://xbrl.sec.gov/country/2025#US P2Y iso4217:USD xbrli:shares iso4217:USD xbrli:shares stel:office xbrli:pure stel:reportingUnit stel:lease stel:interest_rate_swap stel:creditAgreement stel:operatingSegment 0001473844 2025-01-01 2025-12-31 0001473844 2025-06-30 0001473844 2026-02-24 0001473844 2025-10-01 2025-12-31 0001473844 2025-12-31 0001473844 2024-12-31 0001473844 2024-01-01 2024-12-31 0001473844 2023-01-01 2023-12-31 0001473844 us-gaap:CommonStockMember 2022-12-31 0001473844 us-gaap:AdditionalPaidInCapitalMember 2022-12-31 0001473844 us-gaap:RetainedEarningsMember 2022-12-31 0001473844 us-gaap:AccumulatedOtherComprehensiveIncomeMember 2022-12-31 0001473844 2022-12-31 0001473844 us-gaap:RetainedEarningsMember 2023-01-01 2023-12-31 0001473844 us-gaap:AccumulatedOtherComprehensiveIncomeMember 2023-01-01 2023-12-31 0001473844 us-gaap:CommonStockMember 2023-01-01 2023-12-31 0001473844 us-gaap:AdditionalPaidInCapitalMember 2023-01-01 2023-12-31 0001473844 us-gaap:CommonStockMember 2023-12-31 0001473844 us-gaap:AdditionalPaidInCapitalMember 2023-12-31 0001473844 us-gaap:RetainedEarningsMember 2023-12-31 0001473844 us-gaap:AccumulatedOtherComprehensiveIncomeMember 2023-12-31 0001473844 2023-12-31 0001473844 us-gaap:RetainedEarningsMember 2024-01-01 2024-12-31 0001473844 us-gaap:AccumulatedOtherComprehensiveIncomeMember 2024-01-01 2024-12-31 0001473844 us-gaap:CommonStockMember 2024-01-01 2024-12-31 0001473844 us-gaap:AdditionalPaidInCapitalMember 2024-01-01 2024-12-31 0001473844 us-gaap:CommonStockMember 2024-12-31 0001473844 us-gaap:AdditionalPaidInCapitalMember 2024-12-31 0001473844 us-gaap:RetainedEarningsMember 2024-12-31 0001473844 us-gaap:AccumulatedOtherComprehensiveIncomeMember 2024-12-31 0001473844 us-gaap:RetainedEarningsMember 2025-01-01 2025-12-31 0001473844 us-gaap:AccumulatedOtherComprehensiveIncomeMember 2025-01-01 2025-12-31 0001473844 us-gaap:CommonStockMember 2025-01-01 2025-12-31 0001473844 us-gaap:AdditionalPaidInCapitalMember 2025-01-01 2025-12-31 0001473844 us-gaap:CommonStockMember 2025-12-31 0001473844 us-gaap:AdditionalPaidInCapitalMember 2025-12-31 0001473844 us-gaap:RetainedEarningsMember 2025-12-31 0001473844 us-gaap:AccumulatedOtherComprehensiveIncomeMember 2025-12-31 0001473844 stel:HoustonMetropolitanMember 2025-12-31 0001473844 stel:BeaumontMember 2025-12-31 0001473844 stel:DallasMember 2025-12-31 0001473844 us-gaap:FinancialAssetAcquiredWithCreditDeteriorationMember 2025-12-31 0001473844 srt:MinimumMember stel:CollateralDependentLoansSpecificAllocationOfAllowanceForCreditLossesOnLoansMember 2025-01-01 2025-12-31 0001473844 srt:MaximumMember stel:CollateralDependentLoansSpecificAllocationOfAllowanceForCreditLossesOnLoansMember 2025-01-01 2025-12-31 0001473844 srt:MinimumMember 2025-12-31 0001473844 srt:MaximumMember 2025-12-31 0001473844 srt:MinimumMember us-gaap:CoreDepositsMember 2025-12-31 0001473844 srt:MaximumMember us-gaap:CoreDepositsMember 2025-12-31 0001473844 stel:BenefitPlan401KMember 2025-01-01 2025-12-31 0001473844 stel:BenefitPlan401KMember 2024-01-01 2024-12-31 0001473844 stel:BenefitPlan401KMember 2023-01-01 2023-12-31 0001473844 us-gaap:CoreDepositsMember 2022-12-31 0001473844 stel:ServicingAssetsMember 2022-12-31 0001473844 us-gaap:CoreDepositsMember 2023-01-01 2023-12-31 0001473844 stel:ServicingAssetsMember 2023-01-01 2023-12-31 0001473844 us-gaap:CoreDepositsMember 2023-12-31 0001473844 stel:ServicingAssetsMember 2023-12-31 0001473844 us-gaap:CoreDepositsMember 2024-01-01 2024-12-31 0001473844 stel:ServicingAssetsMember 2024-01-01 2024-12-31 0001473844 us-gaap:CoreDepositsMember 2024-12-31 0001473844 stel:ServicingAssetsMember 2024-12-31 0001473844 us-gaap:CoreDepositsMember 2025-01-01 2025-12-31 0001473844 stel:ServicingAssetsMember 2025-01-01 2025-12-31 0001473844 us-gaap:CoreDepositsMember 2025-12-31 0001473844 stel:ServicingAssetsMember 2025-12-31 0001473844 us-gaap:USGovernmentAgenciesDebtSecuritiesMember 2025-12-31 0001473844 us-gaap:USStatesAndPoliticalSubdivisionsMember 2025-12-31 0001473844 stel:AgencyMortgageBackedPassThroughSecuritiesMember 2025-12-31 0001473844 us-gaap:CollateralizedMortgageObligationsMember 2025-12-31 0001473844 us-gaap:CorporateDebtSecuritiesMember 2025-12-31 0001473844 us-gaap:USGovernmentAgenciesDebtSecuritiesMember 2024-12-31 0001473844 us-gaap:USStatesAndPoliticalSubdivisionsMember 2024-12-31 0001473844 stel:AgencyMortgageBackedPassThroughSecuritiesMember 2024-12-31 0001473844 us-gaap:CollateralizedMortgageObligationsMember 2024-12-31 0001473844 us-gaap:CorporateDebtSecuritiesMember 2024-12-31 0001473844 us-gaap:CommercialPortfolioSegmentMember 2025-12-31 0001473844 us-gaap:CommercialPortfolioSegmentMember 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateIncludingMultiFamilyResidentialButNotConstructionAndLandDevelopmentMember 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateIncludingMultiFamilyResidentialButNotConstructionAndLandDevelopmentMember 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateConstructionAndLandDevelopmentMember 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateConstructionAndLandDevelopmentMember 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:OneToFourFamilyResidentialIncludingHomeEquityMember 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:OneToFourFamilyResidentialIncludingHomeEquityMember 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:ResidentialConstructionMember 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:ResidentialConstructionMember 2024-12-31 0001473844 us-gaap:ConsumerPortfolioSegmentMember 2025-12-31 0001473844 us-gaap:ConsumerPortfolioSegmentMember 2024-12-31 0001473844 srt:MinimumMember 2025-01-01 2025-12-31 0001473844 srt:MaximumMember 2025-01-01 2025-12-31 0001473844 us-gaap:CommercialPortfolioSegmentMember stel:FinancialAsset3089DaysPastDueMember 2025-12-31 0001473844 us-gaap:CommercialPortfolioSegmentMember us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember 2025-12-31 0001473844 us-gaap:CommercialPortfolioSegmentMember us-gaap:FinancialAssetPastDueMember 2025-12-31 0001473844 us-gaap:CommercialPortfolioSegmentMember us-gaap:FinancialAssetNotPastDueMember 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateIncludingMultiFamilyResidentialButNotConstructionAndLandDevelopmentMember stel:FinancialAsset3089DaysPastDueMember 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateIncludingMultiFamilyResidentialButNotConstructionAndLandDevelopmentMember us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateIncludingMultiFamilyResidentialButNotConstructionAndLandDevelopmentMember us-gaap:FinancialAssetPastDueMember 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateIncludingMultiFamilyResidentialButNotConstructionAndLandDevelopmentMember us-gaap:FinancialAssetNotPastDueMember 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateConstructionAndLandDevelopmentMember stel:FinancialAsset3089DaysPastDueMember 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateConstructionAndLandDevelopmentMember us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateConstructionAndLandDevelopmentMember us-gaap:FinancialAssetPastDueMember 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateConstructionAndLandDevelopmentMember us-gaap:FinancialAssetNotPastDueMember 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:OneToFourFamilyResidentialIncludingHomeEquityMember stel:FinancialAsset3089DaysPastDueMember 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:OneToFourFamilyResidentialIncludingHomeEquityMember us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:OneToFourFamilyResidentialIncludingHomeEquityMember us-gaap:FinancialAssetPastDueMember 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:OneToFourFamilyResidentialIncludingHomeEquityMember us-gaap:FinancialAssetNotPastDueMember 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:ResidentialConstructionMember stel:FinancialAsset3089DaysPastDueMember 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:ResidentialConstructionMember us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:ResidentialConstructionMember us-gaap:FinancialAssetPastDueMember 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:ResidentialConstructionMember us-gaap:FinancialAssetNotPastDueMember 2025-12-31 0001473844 us-gaap:ConsumerPortfolioSegmentMember stel:FinancialAsset3089DaysPastDueMember 2025-12-31 0001473844 us-gaap:ConsumerPortfolioSegmentMember us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember 2025-12-31 0001473844 us-gaap:ConsumerPortfolioSegmentMember us-gaap:FinancialAssetPastDueMember 2025-12-31 0001473844 us-gaap:ConsumerPortfolioSegmentMember us-gaap:FinancialAssetNotPastDueMember 2025-12-31 0001473844 stel:FinancialAsset3089DaysPastDueMember 2025-12-31 0001473844 us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember 2025-12-31 0001473844 us-gaap:FinancialAssetPastDueMember 2025-12-31 0001473844 us-gaap:FinancialAssetNotPastDueMember 2025-12-31 0001473844 us-gaap:CommercialPortfolioSegmentMember stel:FinancialAsset3089DaysPastDueMember 2024-12-31 0001473844 us-gaap:CommercialPortfolioSegmentMember us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember 2024-12-31 0001473844 us-gaap:CommercialPortfolioSegmentMember us-gaap:FinancialAssetPastDueMember 2024-12-31 0001473844 us-gaap:CommercialPortfolioSegmentMember us-gaap:FinancialAssetNotPastDueMember 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateIncludingMultiFamilyResidentialButNotConstructionAndLandDevelopmentMember stel:FinancialAsset3089DaysPastDueMember 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateIncludingMultiFamilyResidentialButNotConstructionAndLandDevelopmentMember us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateIncludingMultiFamilyResidentialButNotConstructionAndLandDevelopmentMember us-gaap:FinancialAssetPastDueMember 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateIncludingMultiFamilyResidentialButNotConstructionAndLandDevelopmentMember us-gaap:FinancialAssetNotPastDueMember 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateConstructionAndLandDevelopmentMember stel:FinancialAsset3089DaysPastDueMember 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateConstructionAndLandDevelopmentMember us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateConstructionAndLandDevelopmentMember us-gaap:FinancialAssetPastDueMember 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateConstructionAndLandDevelopmentMember us-gaap:FinancialAssetNotPastDueMember 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:OneToFourFamilyResidentialIncludingHomeEquityMember stel:FinancialAsset3089DaysPastDueMember 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:OneToFourFamilyResidentialIncludingHomeEquityMember us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:OneToFourFamilyResidentialIncludingHomeEquityMember us-gaap:FinancialAssetPastDueMember 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:OneToFourFamilyResidentialIncludingHomeEquityMember us-gaap:FinancialAssetNotPastDueMember 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:ResidentialConstructionMember stel:FinancialAsset3089DaysPastDueMember 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:ResidentialConstructionMember us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:ResidentialConstructionMember us-gaap:FinancialAssetPastDueMember 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:ResidentialConstructionMember us-gaap:FinancialAssetNotPastDueMember 2024-12-31 0001473844 us-gaap:ConsumerPortfolioSegmentMember stel:FinancialAsset3089DaysPastDueMember 2024-12-31 0001473844 us-gaap:ConsumerPortfolioSegmentMember us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember 2024-12-31 0001473844 us-gaap:ConsumerPortfolioSegmentMember us-gaap:FinancialAssetPastDueMember 2024-12-31 0001473844 us-gaap:ConsumerPortfolioSegmentMember us-gaap:FinancialAssetNotPastDueMember 2024-12-31 0001473844 stel:FinancialAsset3089DaysPastDueMember 2024-12-31 0001473844 us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember 2024-12-31 0001473844 us-gaap:FinancialAssetPastDueMember 2024-12-31 0001473844 us-gaap:FinancialAssetNotPastDueMember 2024-12-31 0001473844 us-gaap:CommercialPortfolioSegmentMember us-gaap:PassMember 2025-12-31 0001473844 us-gaap:CommercialPortfolioSegmentMember us-gaap:PassMember 2024-12-31 0001473844 us-gaap:CommercialPortfolioSegmentMember us-gaap:SpecialMentionMember 2025-12-31 0001473844 us-gaap:CommercialPortfolioSegmentMember us-gaap:SpecialMentionMember 2024-12-31 0001473844 us-gaap:CommercialPortfolioSegmentMember us-gaap:SubstandardMember 2025-12-31 0001473844 us-gaap:CommercialPortfolioSegmentMember us-gaap:SubstandardMember 2024-12-31 0001473844 us-gaap:CommercialPortfolioSegmentMember us-gaap:DoubtfulMember 2025-12-31 0001473844 us-gaap:CommercialPortfolioSegmentMember us-gaap:DoubtfulMember 2024-12-31 0001473844 us-gaap:CommercialPortfolioSegmentMember 2025-01-01 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateIncludingMultiFamilyResidentialButNotConstructionAndLandDevelopmentMember us-gaap:PassMember 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateIncludingMultiFamilyResidentialButNotConstructionAndLandDevelopmentMember us-gaap:PassMember 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateIncludingMultiFamilyResidentialButNotConstructionAndLandDevelopmentMember us-gaap:SpecialMentionMember 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateIncludingMultiFamilyResidentialButNotConstructionAndLandDevelopmentMember us-gaap:SpecialMentionMember 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateIncludingMultiFamilyResidentialButNotConstructionAndLandDevelopmentMember us-gaap:SubstandardMember 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateIncludingMultiFamilyResidentialButNotConstructionAndLandDevelopmentMember us-gaap:SubstandardMember 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateIncludingMultiFamilyResidentialButNotConstructionAndLandDevelopmentMember us-gaap:DoubtfulMember 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateIncludingMultiFamilyResidentialButNotConstructionAndLandDevelopmentMember us-gaap:DoubtfulMember 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateIncludingMultiFamilyResidentialButNotConstructionAndLandDevelopmentMember 2025-01-01 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateConstructionAndLandDevelopmentMember us-gaap:PassMember 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateConstructionAndLandDevelopmentMember us-gaap:PassMember 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateConstructionAndLandDevelopmentMember us-gaap:SpecialMentionMember 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateConstructionAndLandDevelopmentMember us-gaap:SpecialMentionMember 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateConstructionAndLandDevelopmentMember us-gaap:SubstandardMember 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateConstructionAndLandDevelopmentMember us-gaap:SubstandardMember 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateConstructionAndLandDevelopmentMember us-gaap:DoubtfulMember 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateConstructionAndLandDevelopmentMember us-gaap:DoubtfulMember 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateConstructionAndLandDevelopmentMember 2025-01-01 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:OneToFourFamilyResidentialIncludingHomeEquityMember us-gaap:PassMember 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:OneToFourFamilyResidentialIncludingHomeEquityMember us-gaap:PassMember 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:OneToFourFamilyResidentialIncludingHomeEquityMember us-gaap:SpecialMentionMember 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:OneToFourFamilyResidentialIncludingHomeEquityMember us-gaap:SpecialMentionMember 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:OneToFourFamilyResidentialIncludingHomeEquityMember us-gaap:SubstandardMember 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:OneToFourFamilyResidentialIncludingHomeEquityMember us-gaap:SubstandardMember 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:OneToFourFamilyResidentialIncludingHomeEquityMember us-gaap:DoubtfulMember 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:OneToFourFamilyResidentialIncludingHomeEquityMember us-gaap:DoubtfulMember 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:OneToFourFamilyResidentialIncludingHomeEquityMember 2025-01-01 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:ResidentialConstructionMember us-gaap:PassMember 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:ResidentialConstructionMember us-gaap:PassMember 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:ResidentialConstructionMember us-gaap:SpecialMentionMember 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:ResidentialConstructionMember us-gaap:SpecialMentionMember 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:ResidentialConstructionMember us-gaap:SubstandardMember 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:ResidentialConstructionMember us-gaap:SubstandardMember 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:ResidentialConstructionMember us-gaap:DoubtfulMember 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:ResidentialConstructionMember us-gaap:DoubtfulMember 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:ResidentialConstructionMember 2025-01-01 2025-12-31 0001473844 us-gaap:ConsumerPortfolioSegmentMember us-gaap:PassMember 2025-12-31 0001473844 us-gaap:ConsumerPortfolioSegmentMember us-gaap:PassMember 2024-12-31 0001473844 us-gaap:ConsumerPortfolioSegmentMember us-gaap:SpecialMentionMember 2025-12-31 0001473844 us-gaap:ConsumerPortfolioSegmentMember us-gaap:SpecialMentionMember 2024-12-31 0001473844 us-gaap:ConsumerPortfolioSegmentMember us-gaap:SubstandardMember 2025-12-31 0001473844 us-gaap:ConsumerPortfolioSegmentMember us-gaap:SubstandardMember 2024-12-31 0001473844 us-gaap:ConsumerPortfolioSegmentMember us-gaap:DoubtfulMember 2025-12-31 0001473844 us-gaap:ConsumerPortfolioSegmentMember us-gaap:DoubtfulMember 2024-12-31 0001473844 us-gaap:ConsumerPortfolioSegmentMember 2025-01-01 2025-12-31 0001473844 us-gaap:PassMember 2025-12-31 0001473844 us-gaap:PassMember 2024-12-31 0001473844 us-gaap:SpecialMentionMember 2025-12-31 0001473844 us-gaap:SpecialMentionMember 2024-12-31 0001473844 us-gaap:SubstandardMember 2025-12-31 0001473844 us-gaap:SubstandardMember 2024-12-31 0001473844 us-gaap:DoubtfulMember 2025-12-31 0001473844 us-gaap:DoubtfulMember 2024-12-31 0001473844 us-gaap:CommercialPortfolioSegmentMember 2023-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateIncludingMultiFamilyResidentialButNotConstructionAndLandDevelopmentMember 2023-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateConstructionAndLandDevelopmentMember 2023-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:OneToFourFamilyResidentialIncludingHomeEquityMember 2023-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:ResidentialConstructionMember 2023-12-31 0001473844 us-gaap:ConsumerPortfolioSegmentMember 2023-12-31 0001473844 us-gaap:CommercialPortfolioSegmentMember 2024-01-01 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateIncludingMultiFamilyResidentialButNotConstructionAndLandDevelopmentMember 2024-01-01 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateConstructionAndLandDevelopmentMember 2024-01-01 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:OneToFourFamilyResidentialIncludingHomeEquityMember 2024-01-01 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:ResidentialConstructionMember 2024-01-01 2024-12-31 0001473844 us-gaap:ConsumerPortfolioSegmentMember 2024-01-01 2024-12-31 0001473844 us-gaap:CommercialPortfolioSegmentMember 2022-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateIncludingMultiFamilyResidentialButNotConstructionAndLandDevelopmentMember 2022-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateConstructionAndLandDevelopmentMember 2022-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:OneToFourFamilyResidentialIncludingHomeEquityMember 2022-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:ResidentialConstructionMember 2022-12-31 0001473844 us-gaap:ConsumerPortfolioSegmentMember 2022-12-31 0001473844 us-gaap:CommercialPortfolioSegmentMember 2023-01-01 2023-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateIncludingMultiFamilyResidentialButNotConstructionAndLandDevelopmentMember 2023-01-01 2023-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateConstructionAndLandDevelopmentMember 2023-01-01 2023-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:OneToFourFamilyResidentialIncludingHomeEquityMember 2023-01-01 2023-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:ResidentialConstructionMember 2023-01-01 2023-12-31 0001473844 us-gaap:ConsumerPortfolioSegmentMember 2023-01-01 2023-12-31 0001473844 us-gaap:CollateralizedLoanObligationsMember 2025-12-31 0001473844 us-gaap:CollateralizedLoanObligationsMember 2024-12-31 0001473844 us-gaap:CommercialPortfolioSegmentMember us-gaap:RealEstateMember 2025-12-31 0001473844 us-gaap:CommercialPortfolioSegmentMember stel:BusinessAssetsMember 2025-12-31 0001473844 us-gaap:CommercialPortfolioSegmentMember stel:OtherMember 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateIncludingMultiFamilyResidentialButNotConstructionAndLandDevelopmentMember us-gaap:RealEstateMember 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateIncludingMultiFamilyResidentialButNotConstructionAndLandDevelopmentMember stel:BusinessAssetsMember 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateIncludingMultiFamilyResidentialButNotConstructionAndLandDevelopmentMember stel:OtherMember 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateConstructionAndLandDevelopmentMember us-gaap:RealEstateMember 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateConstructionAndLandDevelopmentMember stel:BusinessAssetsMember 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateConstructionAndLandDevelopmentMember stel:OtherMember 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:OneToFourFamilyResidentialIncludingHomeEquityMember us-gaap:RealEstateMember 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:OneToFourFamilyResidentialIncludingHomeEquityMember stel:BusinessAssetsMember 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:OneToFourFamilyResidentialIncludingHomeEquityMember stel:OtherMember 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:ResidentialConstructionMember us-gaap:RealEstateMember 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:ResidentialConstructionMember stel:BusinessAssetsMember 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:ResidentialConstructionMember stel:OtherMember 2025-12-31 0001473844 us-gaap:ConsumerPortfolioSegmentMember us-gaap:RealEstateMember 2025-12-31 0001473844 us-gaap:ConsumerPortfolioSegmentMember stel:BusinessAssetsMember 2025-12-31 0001473844 us-gaap:ConsumerPortfolioSegmentMember stel:OtherMember 2025-12-31 0001473844 us-gaap:RealEstateMember 2025-12-31 0001473844 stel:BusinessAssetsMember 2025-12-31 0001473844 stel:OtherMember 2025-12-31 0001473844 us-gaap:CommercialPortfolioSegmentMember us-gaap:RealEstateMember 2024-12-31 0001473844 us-gaap:CommercialPortfolioSegmentMember stel:BusinessAssetsMember 2024-12-31 0001473844 us-gaap:CommercialPortfolioSegmentMember stel:OtherMember 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateIncludingMultiFamilyResidentialButNotConstructionAndLandDevelopmentMember us-gaap:RealEstateMember 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateIncludingMultiFamilyResidentialButNotConstructionAndLandDevelopmentMember stel:BusinessAssetsMember 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateIncludingMultiFamilyResidentialButNotConstructionAndLandDevelopmentMember stel:OtherMember 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateConstructionAndLandDevelopmentMember us-gaap:RealEstateMember 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateConstructionAndLandDevelopmentMember stel:BusinessAssetsMember 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateConstructionAndLandDevelopmentMember stel:OtherMember 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:OneToFourFamilyResidentialIncludingHomeEquityMember us-gaap:RealEstateMember 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:OneToFourFamilyResidentialIncludingHomeEquityMember stel:BusinessAssetsMember 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:OneToFourFamilyResidentialIncludingHomeEquityMember stel:OtherMember 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:ResidentialConstructionMember us-gaap:RealEstateMember 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:ResidentialConstructionMember stel:BusinessAssetsMember 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:ResidentialConstructionMember stel:OtherMember 2024-12-31 0001473844 us-gaap:ConsumerPortfolioSegmentMember us-gaap:RealEstateMember 2024-12-31 0001473844 us-gaap:ConsumerPortfolioSegmentMember stel:BusinessAssetsMember 2024-12-31 0001473844 us-gaap:ConsumerPortfolioSegmentMember stel:OtherMember 2024-12-31 0001473844 us-gaap:RealEstateMember 2024-12-31 0001473844 stel:BusinessAssetsMember 2024-12-31 0001473844 stel:OtherMember 2024-12-31 0001473844 us-gaap:CommercialPortfolioSegmentMember us-gaap:ContractualInterestRateReductionMember 2025-01-01 2025-12-31 0001473844 us-gaap:CommercialPortfolioSegmentMember us-gaap:ExtendedMaturityMember 2025-01-01 2025-12-31 0001473844 us-gaap:CommercialPortfolioSegmentMember us-gaap:PaymentDeferralMember 2025-01-01 2025-12-31 0001473844 us-gaap:CommercialPortfolioSegmentMember us-gaap:PrincipalForgivenessMember 2025-01-01 2025-12-31 0001473844 us-gaap:CommercialPortfolioSegmentMember stel:TermExtensionAndPrincipalForgivenessMember 2025-01-01 2025-12-31 0001473844 us-gaap:CommercialPortfolioSegmentMember stel:TermExtensionAndInterestRateReductionMember 2025-01-01 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateIncludingMultiFamilyResidentialButNotConstructionAndLandDevelopmentMember us-gaap:ContractualInterestRateReductionMember 2025-01-01 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateIncludingMultiFamilyResidentialButNotConstructionAndLandDevelopmentMember us-gaap:ExtendedMaturityMember 2025-01-01 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateIncludingMultiFamilyResidentialButNotConstructionAndLandDevelopmentMember us-gaap:PaymentDeferralMember 2025-01-01 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateIncludingMultiFamilyResidentialButNotConstructionAndLandDevelopmentMember us-gaap:PrincipalForgivenessMember 2025-01-01 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateIncludingMultiFamilyResidentialButNotConstructionAndLandDevelopmentMember stel:TermExtensionAndPrincipalForgivenessMember 2025-01-01 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateIncludingMultiFamilyResidentialButNotConstructionAndLandDevelopmentMember stel:TermExtensionAndInterestRateReductionMember 2025-01-01 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateConstructionAndLandDevelopmentMember us-gaap:ContractualInterestRateReductionMember 2025-01-01 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateConstructionAndLandDevelopmentMember us-gaap:ExtendedMaturityMember 2025-01-01 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateConstructionAndLandDevelopmentMember us-gaap:PaymentDeferralMember 2025-01-01 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateConstructionAndLandDevelopmentMember us-gaap:PrincipalForgivenessMember 2025-01-01 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateConstructionAndLandDevelopmentMember stel:TermExtensionAndPrincipalForgivenessMember 2025-01-01 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateConstructionAndLandDevelopmentMember stel:TermExtensionAndInterestRateReductionMember 2025-01-01 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:OneToFourFamilyResidentialIncludingHomeEquityMember us-gaap:ContractualInterestRateReductionMember 2025-01-01 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:OneToFourFamilyResidentialIncludingHomeEquityMember us-gaap:ExtendedMaturityMember 2025-01-01 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:OneToFourFamilyResidentialIncludingHomeEquityMember us-gaap:PaymentDeferralMember 2025-01-01 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:OneToFourFamilyResidentialIncludingHomeEquityMember us-gaap:PrincipalForgivenessMember 2025-01-01 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:OneToFourFamilyResidentialIncludingHomeEquityMember stel:TermExtensionAndPrincipalForgivenessMember 2025-01-01 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:OneToFourFamilyResidentialIncludingHomeEquityMember stel:TermExtensionAndInterestRateReductionMember 2025-01-01 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:ResidentialConstructionMember us-gaap:ContractualInterestRateReductionMember 2025-01-01 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:ResidentialConstructionMember us-gaap:ExtendedMaturityMember 2025-01-01 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:ResidentialConstructionMember us-gaap:PaymentDeferralMember 2025-01-01 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:ResidentialConstructionMember us-gaap:PrincipalForgivenessMember 2025-01-01 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:ResidentialConstructionMember stel:TermExtensionAndPrincipalForgivenessMember 2025-01-01 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:ResidentialConstructionMember stel:TermExtensionAndInterestRateReductionMember 2025-01-01 2025-12-31 0001473844 us-gaap:ConsumerPortfolioSegmentMember us-gaap:ContractualInterestRateReductionMember 2025-01-01 2025-12-31 0001473844 us-gaap:ConsumerPortfolioSegmentMember us-gaap:ExtendedMaturityMember 2025-01-01 2025-12-31 0001473844 us-gaap:ConsumerPortfolioSegmentMember us-gaap:PaymentDeferralMember 2025-01-01 2025-12-31 0001473844 us-gaap:ConsumerPortfolioSegmentMember us-gaap:PrincipalForgivenessMember 2025-01-01 2025-12-31 0001473844 us-gaap:ConsumerPortfolioSegmentMember stel:TermExtensionAndPrincipalForgivenessMember 2025-01-01 2025-12-31 0001473844 us-gaap:ConsumerPortfolioSegmentMember stel:TermExtensionAndInterestRateReductionMember 2025-01-01 2025-12-31 0001473844 us-gaap:ContractualInterestRateReductionMember 2025-01-01 2025-12-31 0001473844 us-gaap:ExtendedMaturityMember 2025-01-01 2025-12-31 0001473844 us-gaap:PaymentDeferralMember 2025-01-01 2025-12-31 0001473844 us-gaap:PrincipalForgivenessMember 2025-01-01 2025-12-31 0001473844 stel:TermExtensionAndPrincipalForgivenessMember 2025-01-01 2025-12-31 0001473844 stel:TermExtensionAndInterestRateReductionMember 2025-01-01 2025-12-31 0001473844 us-gaap:CommercialPortfolioSegmentMember us-gaap:ContractualInterestRateReductionMember 2024-01-01 2024-12-31 0001473844 us-gaap:CommercialPortfolioSegmentMember us-gaap:ExtendedMaturityMember 2024-01-01 2024-12-31 0001473844 us-gaap:CommercialPortfolioSegmentMember us-gaap:PaymentDeferralMember 2024-01-01 2024-12-31 0001473844 us-gaap:CommercialPortfolioSegmentMember us-gaap:PrincipalForgivenessMember 2024-01-01 2024-12-31 0001473844 us-gaap:CommercialPortfolioSegmentMember stel:TermExtensionAndPrincipalForgivenessMember 2024-01-01 2024-12-31 0001473844 us-gaap:CommercialPortfolioSegmentMember stel:TermExtensionAndInterestRateReductionMember 2024-01-01 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateIncludingMultiFamilyResidentialButNotConstructionAndLandDevelopmentMember us-gaap:ContractualInterestRateReductionMember 2024-01-01 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateIncludingMultiFamilyResidentialButNotConstructionAndLandDevelopmentMember us-gaap:ExtendedMaturityMember 2024-01-01 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateIncludingMultiFamilyResidentialButNotConstructionAndLandDevelopmentMember us-gaap:PaymentDeferralMember 2024-01-01 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateIncludingMultiFamilyResidentialButNotConstructionAndLandDevelopmentMember us-gaap:PrincipalForgivenessMember 2024-01-01 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateIncludingMultiFamilyResidentialButNotConstructionAndLandDevelopmentMember stel:TermExtensionAndPrincipalForgivenessMember 2024-01-01 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateIncludingMultiFamilyResidentialButNotConstructionAndLandDevelopmentMember stel:TermExtensionAndInterestRateReductionMember 2024-01-01 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateConstructionAndLandDevelopmentMember us-gaap:ContractualInterestRateReductionMember 2024-01-01 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateConstructionAndLandDevelopmentMember us-gaap:ExtendedMaturityMember 2024-01-01 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateConstructionAndLandDevelopmentMember us-gaap:PaymentDeferralMember 2024-01-01 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateConstructionAndLandDevelopmentMember us-gaap:PrincipalForgivenessMember 2024-01-01 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateConstructionAndLandDevelopmentMember stel:TermExtensionAndPrincipalForgivenessMember 2024-01-01 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateConstructionAndLandDevelopmentMember stel:TermExtensionAndInterestRateReductionMember 2024-01-01 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:OneToFourFamilyResidentialIncludingHomeEquityMember us-gaap:ContractualInterestRateReductionMember 2024-01-01 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:OneToFourFamilyResidentialIncludingHomeEquityMember us-gaap:ExtendedMaturityMember 2024-01-01 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:OneToFourFamilyResidentialIncludingHomeEquityMember us-gaap:PaymentDeferralMember 2024-01-01 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:OneToFourFamilyResidentialIncludingHomeEquityMember us-gaap:PrincipalForgivenessMember 2024-01-01 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:OneToFourFamilyResidentialIncludingHomeEquityMember stel:TermExtensionAndPrincipalForgivenessMember 2024-01-01 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:OneToFourFamilyResidentialIncludingHomeEquityMember stel:TermExtensionAndInterestRateReductionMember 2024-01-01 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:ResidentialConstructionMember us-gaap:ContractualInterestRateReductionMember 2024-01-01 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:ResidentialConstructionMember us-gaap:ExtendedMaturityMember 2024-01-01 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:ResidentialConstructionMember us-gaap:PaymentDeferralMember 2024-01-01 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:ResidentialConstructionMember us-gaap:PrincipalForgivenessMember 2024-01-01 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:ResidentialConstructionMember stel:TermExtensionAndPrincipalForgivenessMember 2024-01-01 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:ResidentialConstructionMember stel:TermExtensionAndInterestRateReductionMember 2024-01-01 2024-12-31 0001473844 us-gaap:ConsumerPortfolioSegmentMember us-gaap:ContractualInterestRateReductionMember 2024-01-01 2024-12-31 0001473844 us-gaap:ConsumerPortfolioSegmentMember us-gaap:ExtendedMaturityMember 2024-01-01 2024-12-31 0001473844 us-gaap:ConsumerPortfolioSegmentMember us-gaap:PaymentDeferralMember 2024-01-01 2024-12-31 0001473844 us-gaap:ConsumerPortfolioSegmentMember us-gaap:PrincipalForgivenessMember 2024-01-01 2024-12-31 0001473844 us-gaap:ConsumerPortfolioSegmentMember stel:TermExtensionAndPrincipalForgivenessMember 2024-01-01 2024-12-31 0001473844 us-gaap:ConsumerPortfolioSegmentMember stel:TermExtensionAndInterestRateReductionMember 2024-01-01 2024-12-31 0001473844 us-gaap:ContractualInterestRateReductionMember 2024-01-01 2024-12-31 0001473844 us-gaap:ExtendedMaturityMember 2024-01-01 2024-12-31 0001473844 us-gaap:PaymentDeferralMember 2024-01-01 2024-12-31 0001473844 us-gaap:PrincipalForgivenessMember 2024-01-01 2024-12-31 0001473844 stel:TermExtensionAndPrincipalForgivenessMember 2024-01-01 2024-12-31 0001473844 stel:TermExtensionAndInterestRateReductionMember 2024-01-01 2024-12-31 0001473844 us-gaap:CommercialPortfolioSegmentMember stel:CombinationMember 2025-01-01 2025-12-31 0001473844 us-gaap:CommercialPortfolioSegmentMember stel:CombinationMember 2024-01-01 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateIncludingMultiFamilyResidentialButNotConstructionAndLandDevelopmentMember stel:CombinationMember 2025-01-01 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateIncludingMultiFamilyResidentialButNotConstructionAndLandDevelopmentMember stel:CombinationMember 2024-01-01 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateConstructionAndLandDevelopmentMember stel:CombinationMember 2025-01-01 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:CommercialRealEstateConstructionAndLandDevelopmentMember stel:CombinationMember 2024-01-01 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:OneToFourFamilyResidentialIncludingHomeEquityMember stel:CombinationMember 2025-01-01 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:OneToFourFamilyResidentialIncludingHomeEquityMember stel:CombinationMember 2024-01-01 2024-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:ResidentialConstructionMember stel:CombinationMember 2025-01-01 2025-12-31 0001473844 stel:RealEstatePorfolioSegmentMember stel:ResidentialConstructionMember stel:CombinationMember 2024-01-01 2024-12-31 0001473844 us-gaap:ConsumerPortfolioSegmentMember stel:CombinationMember 2025-01-01 2025-12-31 0001473844 us-gaap:ConsumerPortfolioSegmentMember stel:CombinationMember 2024-01-01 2024-12-31 0001473844 stel:CombinationMember 2025-01-01 2025-12-31 0001473844 stel:CombinationMember 2024-01-01 2024-12-31 0001473844 us-gaap:LandMember 2025-12-31 0001473844 us-gaap:LandMember 2024-12-31 0001473844 us-gaap:BuildingMember 2025-12-31 0001473844 us-gaap:BuildingMember 2024-12-31 0001473844 stel:LeaseRightOfUseAssetsMember 2025-12-31 0001473844 stel:LeaseRightOfUseAssetsMember 2024-12-31 0001473844 us-gaap:LeaseholdImprovementsMember 2025-12-31 0001473844 us-gaap:LeaseholdImprovementsMember 2024-12-31 0001473844 us-gaap:FurnitureAndFixturesMember 2025-12-31 0001473844 us-gaap:FurnitureAndFixturesMember 2024-12-31 0001473844 us-gaap:ConstructionInProgressMember 2025-12-31 0001473844 us-gaap:ConstructionInProgressMember 2024-12-31 0001473844 us-gaap:CarryingReportedAmountFairValueDisclosureMember 2025-12-31 0001473844 us-gaap:EstimateOfFairValueFairValueDisclosureMember us-gaap:FairValueInputsLevel1Member 2025-12-31 0001473844 us-gaap:EstimateOfFairValueFairValueDisclosureMember us-gaap:FairValueInputsLevel2Member 2025-12-31 0001473844 us-gaap:EstimateOfFairValueFairValueDisclosureMember us-gaap:FairValueInputsLevel3Member 2025-12-31 0001473844 us-gaap:EstimateOfFairValueFairValueDisclosureMember 2025-12-31 0001473844 us-gaap:CarryingReportedAmountFairValueDisclosureMember 2024-12-31 0001473844 us-gaap:EstimateOfFairValueFairValueDisclosureMember us-gaap:FairValueInputsLevel1Member 2024-12-31 0001473844 us-gaap:EstimateOfFairValueFairValueDisclosureMember us-gaap:FairValueInputsLevel2Member 2024-12-31 0001473844 us-gaap:EstimateOfFairValueFairValueDisclosureMember us-gaap:FairValueInputsLevel3Member 2024-12-31 0001473844 us-gaap:EstimateOfFairValueFairValueDisclosureMember 2024-12-31 0001473844 us-gaap:USGovernmentAgenciesDebtSecuritiesMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:FairValueInputsLevel1Member 2025-12-31 0001473844 us-gaap:USGovernmentAgenciesDebtSecuritiesMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:FairValueInputsLevel2Member 2025-12-31 0001473844 us-gaap:USGovernmentAgenciesDebtSecuritiesMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:FairValueInputsLevel3Member 2025-12-31 0001473844 us-gaap:USGovernmentAgenciesDebtSecuritiesMember us-gaap:FairValueMeasurementsRecurringMember 2025-12-31 0001473844 us-gaap:USStatesAndPoliticalSubdivisionsMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:FairValueInputsLevel1Member 2025-12-31 0001473844 us-gaap:USStatesAndPoliticalSubdivisionsMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:FairValueInputsLevel2Member 2025-12-31 0001473844 us-gaap:USStatesAndPoliticalSubdivisionsMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:FairValueInputsLevel3Member 2025-12-31 0001473844 us-gaap:USStatesAndPoliticalSubdivisionsMember us-gaap:FairValueMeasurementsRecurringMember 2025-12-31 0001473844 stel:AgencyMortgageBackedPassThroughSecuritiesMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:FairValueInputsLevel1Member 2025-12-31 0001473844 stel:AgencyMortgageBackedPassThroughSecuritiesMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:FairValueInputsLevel2Member 2025-12-31 0001473844 stel:AgencyMortgageBackedPassThroughSecuritiesMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:FairValueInputsLevel3Member 2025-12-31 0001473844 stel:AgencyMortgageBackedPassThroughSecuritiesMember us-gaap:FairValueMeasurementsRecurringMember 2025-12-31 0001473844 us-gaap:CollateralizedMortgageObligationsMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:FairValueInputsLevel1Member 2025-12-31 0001473844 us-gaap:CollateralizedMortgageObligationsMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:FairValueInputsLevel2Member 2025-12-31 0001473844 us-gaap:CollateralizedMortgageObligationsMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:FairValueInputsLevel3Member 2025-12-31 0001473844 us-gaap:CollateralizedMortgageObligationsMember us-gaap:FairValueMeasurementsRecurringMember 2025-12-31 0001473844 us-gaap:CorporateDebtSecuritiesMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:FairValueInputsLevel1Member 2025-12-31 0001473844 us-gaap:CorporateDebtSecuritiesMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:FairValueInputsLevel2Member 2025-12-31 0001473844 us-gaap:CorporateDebtSecuritiesMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:FairValueInputsLevel3Member 2025-12-31 0001473844 us-gaap:CorporateDebtSecuritiesMember us-gaap:FairValueMeasurementsRecurringMember 2025-12-31 0001473844 stel:InterestRateSwapsAndCapsMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:FairValueInputsLevel1Member 2025-12-31 0001473844 stel:InterestRateSwapsAndCapsMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:FairValueInputsLevel2Member 2025-12-31 0001473844 stel:InterestRateSwapsAndCapsMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:FairValueInputsLevel3Member 2025-12-31 0001473844 stel:InterestRateSwapsAndCapsMember us-gaap:FairValueMeasurementsRecurringMember 2025-12-31 0001473844 stel:CreditRiskParticipationAgreementMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:FairValueInputsLevel1Member 2025-12-31 0001473844 stel:CreditRiskParticipationAgreementMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:FairValueInputsLevel2Member 2025-12-31 0001473844 stel:CreditRiskParticipationAgreementMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:FairValueInputsLevel3Member 2025-12-31 0001473844 stel:CreditRiskParticipationAgreementMember us-gaap:FairValueMeasurementsRecurringMember 2025-12-31 0001473844 us-gaap:FairValueMeasurementsRecurringMember us-gaap:FairValueInputsLevel1Member 2025-12-31 0001473844 us-gaap:FairValueMeasurementsRecurringMember us-gaap:FairValueInputsLevel2Member 2025-12-31 0001473844 us-gaap:FairValueMeasurementsRecurringMember us-gaap:FairValueInputsLevel3Member 2025-12-31 0001473844 us-gaap:FairValueMeasurementsRecurringMember 2025-12-31 0001473844 us-gaap:InterestRateContractMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:FairValueInputsLevel1Member 2025-12-31 0001473844 us-gaap:InterestRateContractMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:FairValueInputsLevel2Member 2025-12-31 0001473844 us-gaap:InterestRateContractMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:FairValueInputsLevel3Member 2025-12-31 0001473844 us-gaap:InterestRateContractMember us-gaap:FairValueMeasurementsRecurringMember 2025-12-31 0001473844 us-gaap:USGovernmentAgenciesDebtSecuritiesMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:FairValueInputsLevel1Member 2024-12-31 0001473844 us-gaap:USGovernmentAgenciesDebtSecuritiesMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:FairValueInputsLevel2Member 2024-12-31 0001473844 us-gaap:USGovernmentAgenciesDebtSecuritiesMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:FairValueInputsLevel3Member 2024-12-31 0001473844 us-gaap:USGovernmentAgenciesDebtSecuritiesMember us-gaap:FairValueMeasurementsRecurringMember 2024-12-31 0001473844 us-gaap:USStatesAndPoliticalSubdivisionsMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:FairValueInputsLevel1Member 2024-12-31 0001473844 us-gaap:USStatesAndPoliticalSubdivisionsMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:FairValueInputsLevel2Member 2024-12-31 0001473844 us-gaap:USStatesAndPoliticalSubdivisionsMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:FairValueInputsLevel3Member 2024-12-31 0001473844 us-gaap:USStatesAndPoliticalSubdivisionsMember us-gaap:FairValueMeasurementsRecurringMember 2024-12-31 0001473844 stel:AgencyMortgageBackedPassThroughSecuritiesMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:FairValueInputsLevel1Member 2024-12-31 0001473844 stel:AgencyMortgageBackedPassThroughSecuritiesMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:FairValueInputsLevel2Member 2024-12-31 0001473844 stel:AgencyMortgageBackedPassThroughSecuritiesMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:FairValueInputsLevel3Member 2024-12-31 0001473844 stel:AgencyMortgageBackedPassThroughSecuritiesMember us-gaap:FairValueMeasurementsRecurringMember 2024-12-31 0001473844 us-gaap:CollateralizedMortgageObligationsMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:FairValueInputsLevel1Member 2024-12-31 0001473844 us-gaap:CollateralizedMortgageObligationsMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:FairValueInputsLevel2Member 2024-12-31 0001473844 us-gaap:CollateralizedMortgageObligationsMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:FairValueInputsLevel3Member 2024-12-31 0001473844 us-gaap:CollateralizedMortgageObligationsMember us-gaap:FairValueMeasurementsRecurringMember 2024-12-31 0001473844 us-gaap:CorporateDebtSecuritiesMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:FairValueInputsLevel1Member 2024-12-31 0001473844 us-gaap:CorporateDebtSecuritiesMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:FairValueInputsLevel2Member 2024-12-31 0001473844 us-gaap:CorporateDebtSecuritiesMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:FairValueInputsLevel3Member 2024-12-31 0001473844 us-gaap:CorporateDebtSecuritiesMember us-gaap:FairValueMeasurementsRecurringMember 2024-12-31 0001473844 us-gaap:InterestRateSwapMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:FairValueInputsLevel1Member 2024-12-31 0001473844 us-gaap:InterestRateSwapMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:FairValueInputsLevel2Member 2024-12-31 0001473844 us-gaap:InterestRateSwapMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:FairValueInputsLevel3Member 2024-12-31 0001473844 us-gaap:InterestRateSwapMember us-gaap:FairValueMeasurementsRecurringMember 2024-12-31 0001473844 stel:CreditRiskParticipationAgreementMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:FairValueInputsLevel1Member 2024-12-31 0001473844 stel:CreditRiskParticipationAgreementMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:FairValueInputsLevel2Member 2024-12-31 0001473844 stel:CreditRiskParticipationAgreementMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:FairValueInputsLevel3Member 2024-12-31 0001473844 stel:CreditRiskParticipationAgreementMember us-gaap:FairValueMeasurementsRecurringMember 2024-12-31 0001473844 us-gaap:FairValueMeasurementsRecurringMember us-gaap:FairValueInputsLevel1Member 2024-12-31 0001473844 us-gaap:FairValueMeasurementsRecurringMember us-gaap:FairValueInputsLevel2Member 2024-12-31 0001473844 us-gaap:FairValueMeasurementsRecurringMember us-gaap:FairValueInputsLevel3Member 2024-12-31 0001473844 us-gaap:FairValueMeasurementsRecurringMember 2024-12-31 0001473844 us-gaap:InterestRateContractMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:FairValueInputsLevel1Member 2024-12-31 0001473844 us-gaap:InterestRateContractMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:FairValueInputsLevel2Member 2024-12-31 0001473844 us-gaap:InterestRateContractMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:FairValueInputsLevel3Member 2024-12-31 0001473844 us-gaap:InterestRateContractMember us-gaap:FairValueMeasurementsRecurringMember 2024-12-31 0001473844 us-gaap:CommercialPortfolioSegmentMember us-gaap:FairValueMeasurementsNonrecurringMember us-gaap:FairValueInputsLevel1Member 2025-12-31 0001473844 us-gaap:CommercialPortfolioSegmentMember us-gaap:FairValueMeasurementsNonrecurringMember us-gaap:FairValueInputsLevel2Member 2025-12-31 0001473844 us-gaap:CommercialPortfolioSegmentMember us-gaap:FairValueMeasurementsNonrecurringMember us-gaap:FairValueInputsLevel3Member 2025-12-31 0001473844 us-gaap:CommercialRealEstatePortfolioSegmentMember us-gaap:FairValueMeasurementsNonrecurringMember us-gaap:FairValueInputsLevel1Member 2025-12-31 0001473844 us-gaap:CommercialRealEstatePortfolioSegmentMember us-gaap:FairValueMeasurementsNonrecurringMember us-gaap:FairValueInputsLevel2Member 2025-12-31 0001473844 us-gaap:CommercialRealEstatePortfolioSegmentMember us-gaap:FairValueMeasurementsNonrecurringMember us-gaap:FairValueInputsLevel3Member 2025-12-31 0001473844 us-gaap:FairValueMeasurementsNonrecurringMember us-gaap:FairValueInputsLevel1Member stel:CommercialRealEstateConstructionAndLandDevelopmentMember 2025-12-31 0001473844 us-gaap:FairValueMeasurementsNonrecurringMember us-gaap:FairValueInputsLevel2Member stel:CommercialRealEstateConstructionAndLandDevelopmentMember 2025-12-31 0001473844 us-gaap:FairValueMeasurementsNonrecurringMember us-gaap:FairValueInputsLevel3Member stel:CommercialRealEstateConstructionAndLandDevelopmentMember 2025-12-31 0001473844 us-gaap:FairValueMeasurementsNonrecurringMember us-gaap:FairValueInputsLevel1Member stel:OneToFourFamilyResidentialIncludingHomeEquityMember 2025-12-31 0001473844 us-gaap:FairValueMeasurementsNonrecurringMember us-gaap:FairValueInputsLevel2Member stel:OneToFourFamilyResidentialIncludingHomeEquityMember 2025-12-31 0001473844 us-gaap:FairValueMeasurementsNonrecurringMember us-gaap:FairValueInputsLevel3Member stel:OneToFourFamilyResidentialIncludingHomeEquityMember 2025-12-31 0001473844 stel:ConsumerAndOtherMember us-gaap:FairValueMeasurementsNonrecurringMember us-gaap:FairValueInputsLevel1Member 2025-12-31 0001473844 stel:ConsumerAndOtherMember us-gaap:FairValueMeasurementsNonrecurringMember us-gaap:FairValueInputsLevel2Member 2025-12-31 0001473844 stel:ConsumerAndOtherMember us-gaap:FairValueMeasurementsNonrecurringMember us-gaap:FairValueInputsLevel3Member 2025-12-31 0001473844 us-gaap:FairValueMeasurementsNonrecurringMember us-gaap:FairValueInputsLevel1Member 2025-12-31 0001473844 us-gaap:FairValueMeasurementsNonrecurringMember us-gaap:FairValueInputsLevel2Member 2025-12-31 0001473844 us-gaap:FairValueMeasurementsNonrecurringMember us-gaap:FairValueInputsLevel3Member 2025-12-31 0001473844 us-gaap:CommercialPortfolioSegmentMember us-gaap:FairValueMeasurementsNonrecurringMember us-gaap:FairValueInputsLevel1Member 2024-12-31 0001473844 us-gaap:CommercialPortfolioSegmentMember us-gaap:FairValueMeasurementsNonrecurringMember us-gaap:FairValueInputsLevel2Member 2024-12-31 0001473844 us-gaap:CommercialPortfolioSegmentMember us-gaap:FairValueMeasurementsNonrecurringMember us-gaap:FairValueInputsLevel3Member 2024-12-31 0001473844 us-gaap:CommercialRealEstatePortfolioSegmentMember us-gaap:FairValueMeasurementsNonrecurringMember us-gaap:FairValueInputsLevel1Member 2024-12-31 0001473844 us-gaap:CommercialRealEstatePortfolioSegmentMember us-gaap:FairValueMeasurementsNonrecurringMember us-gaap:FairValueInputsLevel2Member 2024-12-31 0001473844 us-gaap:CommercialRealEstatePortfolioSegmentMember us-gaap:FairValueMeasurementsNonrecurringMember us-gaap:FairValueInputsLevel3Member 2024-12-31 0001473844 us-gaap:FairValueMeasurementsNonrecurringMember us-gaap:FairValueInputsLevel1Member stel:CommercialRealEstateConstructionAndLandDevelopmentMember 2024-12-31 0001473844 us-gaap:FairValueMeasurementsNonrecurringMember us-gaap:FairValueInputsLevel2Member stel:CommercialRealEstateConstructionAndLandDevelopmentMember 2024-12-31 0001473844 us-gaap:FairValueMeasurementsNonrecurringMember us-gaap:FairValueInputsLevel3Member stel:CommercialRealEstateConstructionAndLandDevelopmentMember 2024-12-31 0001473844 us-gaap:FairValueMeasurementsNonrecurringMember us-gaap:FairValueInputsLevel1Member stel:OneToFourFamilyResidentialIncludingHomeEquityMember 2024-12-31 0001473844 us-gaap:FairValueMeasurementsNonrecurringMember us-gaap:FairValueInputsLevel2Member stel:OneToFourFamilyResidentialIncludingHomeEquityMember 2024-12-31 0001473844 us-gaap:FairValueMeasurementsNonrecurringMember us-gaap:FairValueInputsLevel3Member stel:OneToFourFamilyResidentialIncludingHomeEquityMember 2024-12-31 0001473844 stel:ConsumerAndOtherMember us-gaap:FairValueMeasurementsNonrecurringMember us-gaap:FairValueInputsLevel1Member 2024-12-31 0001473844 stel:ConsumerAndOtherMember us-gaap:FairValueMeasurementsNonrecurringMember us-gaap:FairValueInputsLevel2Member 2024-12-31 0001473844 stel:ConsumerAndOtherMember us-gaap:FairValueMeasurementsNonrecurringMember us-gaap:FairValueInputsLevel3Member 2024-12-31 0001473844 us-gaap:FairValueMeasurementsNonrecurringMember us-gaap:FairValueInputsLevel1Member 2024-12-31 0001473844 us-gaap:FairValueMeasurementsNonrecurringMember us-gaap:FairValueInputsLevel2Member 2024-12-31 0001473844 us-gaap:FairValueMeasurementsNonrecurringMember us-gaap:FairValueInputsLevel3Member 2024-12-31 0001473844 stel:InterestRateSwapWithFinancialInstitutionsOneMember us-gaap:OtherAssetsMember us-gaap:NondesignatedMember 2025-12-31 0001473844 stel:InterestRateSwapWithFinancialInstitutionsOneMember us-gaap:OtherAssetsMember us-gaap:NondesignatedMember 2024-12-31 0001473844 stel:InterestRateSwapWithFinancialInstitutionsTwoMember us-gaap:OtherLiabilitiesMember us-gaap:NondesignatedMember 2025-12-31 0001473844 stel:InterestRateSwapWithFinancialInstitutionsTwoMember us-gaap:OtherLiabilitiesMember us-gaap:NondesignatedMember 2024-12-31 0001473844 stel:InterestRateCapsWithFinancialInstitutionMember us-gaap:OtherAssetsMember us-gaap:NondesignatedMember 2025-12-31 0001473844 stel:InterestRateCapsWithFinancialInstitutionMember us-gaap:OtherAssetsMember us-gaap:NondesignatedMember 2024-12-31 0001473844 stel:InterestRateSwapsWithCustomersOneMember us-gaap:OtherAssetsMember us-gaap:NondesignatedMember 2025-12-31 0001473844 stel:InterestRateSwapsWithCustomersOneMember us-gaap:OtherAssetsMember us-gaap:NondesignatedMember 2024-12-31 0001473844 stel:InterestRateSwapWithCustomersTwoMember us-gaap:OtherLiabilitiesMember us-gaap:NondesignatedMember 2025-12-31 0001473844 stel:InterestRateSwapWithCustomersTwoMember us-gaap:OtherLiabilitiesMember us-gaap:NondesignatedMember 2024-12-31 0001473844 stel:InterestRateSwapWithCustomersTwoMember us-gaap:OtherAssetsMember us-gaap:NondesignatedMember 2024-12-31 0001473844 stel:InterestRateCapsWithCustomerCounterpartiesMember us-gaap:OtherLiabilitiesMember us-gaap:NondesignatedMember 2025-12-31 0001473844 stel:InterestRateCapsWithCustomerCounterpartiesMember us-gaap:OtherLiabilitiesMember us-gaap:NondesignatedMember 2024-12-31 0001473844 stel:CreditRiskParticipationAgreementWithFinancialInstitutionMember us-gaap:OtherAssetsMember us-gaap:NondesignatedMember 2025-12-31 0001473844 stel:CreditRiskParticipationAgreementWithFinancialInstitutionMember us-gaap:OtherAssetsMember us-gaap:NondesignatedMember 2024-12-31 0001473844 us-gaap:InterestRateSwapMember us-gaap:NondesignatedMember stel:CounterpartyFinancialInstitutionMember 2025-12-31 0001473844 us-gaap:InterestRateSwapMember us-gaap:NondesignatedMember stel:CounterpartyFinancialInstitutionMember 2024-12-31 0001473844 us-gaap:InterestRateSwapMember us-gaap:NondesignatedMember stel:CounterpartyCustomerMember 2025-12-31 0001473844 us-gaap:InterestRateSwapMember us-gaap:NondesignatedMember stel:CounterpartyCustomerMember 2024-12-31 0001473844 srt:FederalHomeLoanBankOfDallasMember 2025-12-31 0001473844 us-gaap:RevolvingCreditFacilityMember stel:LoanAgreementMember us-gaap:LineOfCreditMember 2022-12-13 0001473844 us-gaap:RevolvingCreditFacilityMember stel:LoanAgreementMember us-gaap:LineOfCreditMember 2025-12-31 0001473844 us-gaap:FederalHomeLoanBankAdvancesMember srt:FederalHomeLoanBankOfDallasMember srt:WeightedAverageMember 2022-12-13 0001473844 us-gaap:RevolvingCreditFacilityMember stel:LoanAgreementMember us-gaap:LineOfCreditMember 2022-12-13 2022-12-13 0001473844 us-gaap:RevolvingCreditFacilityMember stel:LoanAgreementMember us-gaap:LineOfCreditMember 2024-12-13 0001473844 stel:FmBancsharesIncMember us-gaap:JuniorSubordinatedDebtMember 2025-01-01 2025-12-31 0001473844 us-gaap:JuniorSubordinatedDebtMember stel:FarmersMerchantsCapitalTrustIiMember 2025-12-31 0001473844 us-gaap:JuniorSubordinatedDebtMember stel:FarmersMerchantsCapitalTrustIiiMember 2025-12-31 0001473844 stel:FixedToFloatingRateSubordinatedNotesMember us-gaap:SubordinatedDebtMember 2017-12-31 0001473844 stel:FixedToFloatingRateSubordinatedNotesMember us-gaap:SubordinatedDebtMember 2017-12-01 2017-12-31 0001473844 stel:FixedToFloatingRateSubordinatedNotesMember us-gaap:SubordinatedDebtMember 2019-09-30 0001473844 stel:FixedToFloatingRateSubordinatedNotesMember us-gaap:SubordinatedDebtMember 2019-09-01 2019-09-30 0001473844 stel:FixedToFloatingRateSubordinatedNotesMember us-gaap:SubordinatedDebtMember 2025-10-01 2025-10-01 0001473844 stel:A2022OmnibusIncentivePlanMember 2025-12-31 0001473844 us-gaap:EmployeeStockOptionMember 2025-01-01 2025-12-31 0001473844 srt:MinimumMember us-gaap:EmployeeStockOptionMember 2025-01-01 2025-12-31 0001473844 srt:MaximumMember us-gaap:EmployeeStockOptionMember 2025-01-01 2025-12-31 0001473844 srt:MinimumMember us-gaap:RestrictedStockMember 2025-01-01 2025-12-31 0001473844 srt:MaximumMember us-gaap:RestrictedStockMember 2025-01-01 2025-12-31 0001473844 us-gaap:RestrictedStockMember 2023-12-31 0001473844 us-gaap:RestrictedStockMember 2024-01-01 2024-12-31 0001473844 us-gaap:RestrictedStockMember 2024-12-31 0001473844 us-gaap:RestrictedStockMember 2025-01-01 2025-12-31 0001473844 us-gaap:RestrictedStockMember 2025-12-31 0001473844 us-gaap:PerformanceSharesMember 2025-01-01 2025-12-31 0001473844 stel:PerformanceShareAwardsMember 2024-01-01 2024-12-31 0001473844 us-gaap:PerformanceSharesMember 2025-12-31 0001473844 us-gaap:CommitmentsToExtendCreditMember 2025-12-31 0001473844 us-gaap:CommitmentsToExtendCreditMember 2024-12-31 0001473844 stel:StandbyLettersOfCredit1Member 2025-12-31 0001473844 stel:StandbyLettersOfCredit1Member 2024-12-31 0001473844 us-gaap:UnfundedLoanCommitmentMember 2025-12-31 0001473844 us-gaap:UnfundedLoanCommitmentMember 2024-12-31 0001473844 us-gaap:UnfundedLoanCommitmentMember 2025-01-01 2025-12-31 0001473844 us-gaap:UnfundedLoanCommitmentMember 2024-01-01 2024-12-31 0001473844 us-gaap:UnfundedLoanCommitmentMember 2023-01-01 2023-12-31 0001473844 stel:StellarBankMember 2025-12-31 0001473844 stel:StellarBankMember 2024-12-31 0001473844 us-gaap:EmployeeStockOptionMember 2024-01-01 2024-12-31 0001473844 us-gaap:EmployeeStockOptionMember 2023-01-01 2023-12-31 0001473844 srt:ParentCompanyMember 2025-12-31 0001473844 srt:ParentCompanyMember 2024-12-31 0001473844 srt:ConsolidationEliminationsMember srt:ParentCompanyMember 2025-01-01 2025-12-31 0001473844 srt:ConsolidationEliminationsMember srt:ParentCompanyMember 2024-01-01 2024-12-31 0001473844 srt:ConsolidationEliminationsMember srt:ParentCompanyMember 2023-01-01 2023-12-31 0001473844 srt:ParentCompanyMember 2025-01-01 2025-12-31 0001473844 srt:ParentCompanyMember 2024-01-01 2024-12-31 0001473844 srt:ParentCompanyMember 2023-01-01 2023-12-31 0001473844 srt:ParentCompanyMember 2023-12-31 0001473844 srt:ParentCompanyMember 2022-12-31 0001473844 us-gaap:SubsequentEventMember 2026-01-27 0001473844 stel:ProsperityBancsharesInc.Member stel:ProsperityBancsharesInc.Member us-gaap:SubsequentEventMember 2026-01-27 2026-01-27 0001473844 stel:ProsperityBancsharesInc.Member stel:ProsperityBancsharesInc.Member us-gaap:SubsequentEventMember 2026-01-27 0001473844 us-gaap:SubsequentEventMember 2026-02-25 2026-02-25
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM 10-K

S | ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

FOR THE FISCAL YEAR ENDED DECEMBER 31, 2025
OR

£ | TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

FOR THE TRANSITION PERIOD FROM TO
COMMISSION FILE NUMBER: 001-38280

Stellar Bancorp, Inc.
(Exact name of registrant as specified in its charter)

Texas | 20-8339782
(State or other jurisdiction of incorporation or organization) | (I.R.S. Employer Identification No.)

9 Greenway Plaza, Suite 110
Houston, Texas 77046
(Address of principal executive offices, including zip code)
(713) 210-7600
(Registrant’s telephone number, including area code)
Securities registered pursuant to Section 12(b) of the Act:

Title of each class | Trading Symbol(s) | Name of each exchange on which registered
Common stock, par value $0.01 per share | STEL | New York Stock Exchange
|  | NYSE Texas

Securities registered pursuant to Section 12(g) of the Act: None

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes S No ☐
Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. Yes ☐ No S
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes S No ☐
Indicate by check mark whether the registrant has submitted electronically, every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes S No ☐
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large Accelerated Filer | S |  | Accelerated Filer | £
Non-accelerated Filer | £ |  | Smaller Reporting Company | £
|  |  | Emerging growth company | £

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. £
Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit repo rt. Yes S No £
If securities are registered pursuant to Section 12(b) of the Act, indicated by check mark whether the financial statements of the registrant included in the filing reflect a correction of an error in previously issued financial statements. ☐
Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-based compensation received by any of the registrant’s executive officers during the relevant recover period pursuant to §240.1D-1(b). £
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes £ No S
The aggregate market value of the shares of common stock held by non-affiliates based on the closing price per share of the registrant’s common stock as reported on the New York Stock Exchange on June 30, 2025 was approximately $1.30 billion.
As of February 24, 2026, there were 50,772,216 shares of the registrant’s common stock, $0.01 par value, outstanding.
Documents Incorporated by Reference:
Portions of the Proxy Statement relating to the 2026 Annual Meeting of Shareholders of Stellar Bancorp, Inc., which will be filed within 120 days after December 31, 2025, are incorporated by reference into Part III, Items 10-14 of this Annual Report on Form 10-K.

STELLAR BANCORP, INC.
2025 ANNUAL REPORT ON FORM 10-K

PART I |
| Item 1. | Business | 1
| Item 1A. | Risk Factors | 15
| Item 1B. | Unresolved Staff Comments | 37
| Item 1C. | Cybersecurity | 37
| Item 2. | Properties | 39
| Item 3. | Legal Proceedings | 39
| Item 4. | Mine Safety Disclosures | 39
PART II |
| Item 5. | Market for Registrant’s Common Equity, Related Shareholder Matters and Issuer Purchases of Equity Securities | 39
| Item 6. | [Reserved] | 41
| Item 7. | Management’s Discussion and Analysis of Financial Condition and Results of Operations | 42
| Item 7A. | Quantitative and Qualitative Disclosures about Market Risk | 66
| Item 8. | Financial Statements and Supplementary Data | 66
| Item 9. | Changes in and Disagreements w ith Accountants on Accounting and Financial Disclosure | 66
| Item 9A. | Controls and Procedures | 66
| Item 9B. | Other Information | 67
| Item 9C. | Disclosure Regarding Foreign Jurisdictions that Prevent Inspections | 67
PART III |
| Item 10. | Directors, Executive Officers and Corporate Governance | 67
| Item 11. | Executive Compensation | 67
| Item 12. | Security Ownership of Certain Beneficial Owners and Management and Related Shareholder Matters | 67
| Item 13. | Certain Relationships and Related Transactions, and Director Independence | 67
| Item 14. | Principal Accounting Fees and Services | 68
PART IV |
| Item 15. | Exhibits and Financial Statement Schedules | 68
| Item 16. | Form 10-K Summary | 70
| Signatures | 71

PART I
Except where the context otherwise requires or where otherwise indicated in this Annual Report on Form 10-K the term “Stellar” refers to Stellar Bancorp, Inc., the terms “we,” “us,” “our,” “Company” and “our business” refer to Stellar Bancorp, Inc. and our wholly owned banking subsidiary, Stellar Bank, a Texas banking association, and the term or the “Bank” refers to Stellar Bank.
ITEM 1. BUSINESS
The disclosures set forth in this item are qualified by “Item 1A. Risk Factors,” the section captioned “Cautionary Notice Regarding Forward-Looking Statements” in the forepart of this report, “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations— Cautionary Notice Regarding Forward-Looking Statements” and other cautionary statements set forth elsewhere in this Annual Report on Form 10-K.
General
The Company is a Texas corporation and registered bank holding company headquartered in Houston, Texas.
On January 27, 2026, the Company entered into an Agreement and Plan of Merger (the “Merger Agreement”) with Prosperity Bancshares, Inc., a Texas corporation (“Prosperity”). The Merger Agreement provides that, upon the terms and subject to the conditions set forth therein, the Company will merge with and into Prosperity (the “Merger”), with Prosperity continuing as the surviving corporation in the Merger. Immediately following the Merger, Stellar Bank will merge with and into Prosperity’s wholly owned banking subsidiary, Prosperity Bank (the “Bank Merger”). Prosperity Bank will continue as the surviving bank in the Bank Merger. Upon the terms and subject to the conditions set forth in the Merger Agreement, at the effective time of the Merger (the “Effective Time”), each share of common stock, par value $0.01 per share, of the Company (“Stellar Common Stock”) outstanding immediately prior to the Effective Time, other than certain shares held by Prosperity or the Company and shares held by a holder of Stellar Common Stock who has properly exercised applicable dissenters’ rights in respect of such share, will be converted into the right to receive (i) 0.3803 shares of common stock, par value $1.00 per share, of Prosperity and (ii) an amount in cash equal to $11.36. The closing of the Merger is expected to occur in the second quarter of 2026, subject to customary conditions, including approval of the Company’s shareholders and regulatory approvals. See Part I, Item 1A, “Risk Factors,” Part II, Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” and Note 18 – Subsequent Events in the accompanying notes to the consolidated financial statements.
On October 1, 2022, Allegiance Bancshares, Inc. (“Allegiance”) and CBTX, Inc. (“CBTX”) merged (the “Merger”) with CBTX as the surviving corporation that was renamed Stellar Bancorp, Inc. and the ticker symbol changed to “STEL.” Immediately following the Merger, CommunityBank of Texas, N.A. (“CommunityBank”), a national banking association and a wholly-owned subsidiary of CBTX, merged with and into Allegiance Bank, a wholly-owned subsidiary of Allegiance, with Allegiance Bank as the surviving bank. In connection with the operational conversion, Allegiance Bank changed its name to Stellar Bank on February 18, 2023. After the Merger, Stellar Bank became one of the largest banks based in Houston, Texas.
We refer to the Houston-The Woodlands-Sugar Land metropolitan statistical area (“MSA”) and the Beaumont-Port Arthur MSA combined, as the Houston region (the “Houston region”) and we refer to the Houston region and the Dallas MSA as our market (“market”). As of December 31, 2025, we operated 52 service banking centers, wi th 35 banking centers in the Houston MSA, 16 banking centers in the Beaumont MSA and one banking center in Dallas, Texas.
Through Stellar Bank, the Company provides a diversified range of commercial banking services primarily to small- to medium-sized businesses, professionals and individual customers within our market. We believe the size, growth and increasing economic diversity of our market, when combined with our community banking strategy, provides us with excellent opportunities for long-term, sustainable growth. Our community banking strategy, which is described in more detail below, is designed to foster strong customer relationships while benefitting from a platform and scale that is competitive with larger regional and national banks. We believe this strategy presents a significant market advantage for serving small- to medium-sized business customers and further enables us to attract talented bankers.
As of December 31, 2025, the Company had total assets of $10.81 billion, total loans of $7.30 billion, total deposits of $9.02 billion and total shareholders’ equity of $1.67 billion.
1

Business Strategy
The Company’s objective is to grow and strengthen its banking franchise through its community banking strategy and strategic acquisitions. The Company is a leading provider of customized commercial banking services to small- and medium-sized businesses in our market by providing superior customer service and by leveraging the strength and capabilities of local management.
Community Banking Strategy
Our community banking strategy leverages local delivery of the customer service associated with community banking combined with the products, efficiencies and scale associated with larger banks. We are able to establish and foster strong relationships with customers through superior service. We operate full-service banking centers and employ experienced bankers that are able to respond to customer needs quickly with local decision making. We support banking center operations with a centralized credit approval process, loan operations, information technology, core data processing, accounting, finance, treasury and treasury management support, deposit operations and executive and board oversight. We emphasize lending to and banking with small- to medium-sized businesses, with which we believe we can establish stronger relationships through excellent service and provide lending that can be priced on terms that are more attractive to the Company than would be achieved by lending to larger businesses. We believe this approach produces a competitive advantage by delivering an extraordinary customer experience and fostering a culture dedicated to achieving superior external and internal service levels.
We will leverage our community banking strategy to organically grow our banking franchise through:
•increasing the productivity of existing bankers, as measured by loans, deposits and fee income per banker, while enhancing profitability by leveraging our existing operating platform;
•identifying and hiring additional seasoned bankers who will thrive within a locally focused community banking model;
•focusing on local decision-making, allowing us to provide customers with timely decisions on loan requests, which we believe allows us to effectively compete with larger financial institutions; and
•broadening our financial services offerings and technology adoption to better serve our customer base’s evolving needs while increasing operational efficiency.
Strategic Acquisitions
We intend to continue to expand our presence through organic growth and a disciplined acquisition strategy. We generally focus on like-minded community banks in Texas with similar strategies to our own when evaluating acquisition opportunities and will also consider strategic non-bank acquisition opportunities that complement our growth strategy. We believe that our management’s experience in assessing, executing and integrating target institutions will allow us to capitalize on acquisition opportunities.
Competitive Strengths
We believe that we are well positioned to execute our community banking strategy because of the following competitive strengths:
•Experienced, growth-focused senior management team—Our senior management team has a demonstrated track record of managing profitable organic growth, improving operating efficiencies, maintaining a strong risk management culture, implementing a community and service-focused approach to banking and successfully executing and integrating acquisitions.
•Scalable banking and operational platform designed to foster and accommodate significant growth—We believe in the value of scale in banking and our operating platform and strategy is designed for growth. We have made extensive investments in the technology and systems necessary to build a scalable corporate infrastructure with the capacity to support continued growth. Our size better positions us to effectively invest in technology and be more future-focused than smaller banks. We believe that our scalable operating platform will effectively support growth, resulting in greater efficiency and enhanced profitability as we grow.
•Community-focused, full-service customer relationships—We believe that our community banking strategy facilitates strong relationships with our customers. We are focused on delivering a wide variety of high-quality, relationship-driven commercial and community-oriented banking products and services tailored to meet the needs of small- to medium-sized businesses, professionals and individuals in our market. We actively solicit the deposit business of our consumer and commercial loan customers and seek to deepen these relationships with additional products and services.
2

•Local decision making authority—Acquisitions of many local financial institutions in our market by larger, more regionally focused competitors have led to a reduced number of locally-based competitors, and we believe this has created an underserved base of small- to medium-sized businesses, professionals and individuals that are interested in banking with a company headquartered in, and with decision-making authority based in our market. We seek to develop comprehensive, long-term banking relationships with customers and offer an array of products and services to support our loan and deposit activities. Our products and services are tailored to address the needs of our targeted customers and we believe positions us well to compete effectively and build strong customer relationships.
•Focus on seasoned bankers—We believe our management team’s long-standing presence and experience in our market gives us valuable insight into the local market and the ability to successfully develop and recruit talented bankers. Our team of seasoned bankers has been the driver of our organic growth. Our officer compensation structure, which includes equity grants and various incentive programs, attracts talented bankers and motivates them to increase the size of their loan and deposit portfolios and generate fee income while maintaining strong credit quality.
•Disciplined underwriting and credit administration—Our management, bankers and credit administration team emphasize a strong culture of risk management that is supported by comprehensive policies and procedures for credit underwriting, funding and administration that enable us to maintain sound asset quality. The Company’s underwriting methodology emphasizes analysis of cash flow coverage, loan to collateral value and obtaining personal guaranties. We intend to continue to emphasize and adhere to these p rocedures and controls, which we believe have helped to minimize our level of loan charge-offs.
•Quality loan portfolio—Our focus on loans to small- to medium-sized businesses results in a more diffused portfolio of loan relationships, which we believe reduces the risk relative to a dependence on significantly larger lending relationships. As of December 31, 2025, our average funded loan size was approximately $533 thousand.
Community Banking Services
Lending Activities
We offer a wide range of commercial and retail lending services, including commercial loans, loans to small businesses guaranteed by the Small Business Administration (the “SBA”), mortgage loans, home equity loans, personal loans and automobile loans, among others, specifically designed for small- to medium-sized businesses and companies, professionals and individuals generally located within Texas and primarily in our market. We also offer factoring services through American Prudential Capital, Inc., a wholly owned subsidiary of the Bank. See “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations—Financial Condition—Loan Portfolio” for a more detailed discussion of the Company’s lending activities.
Deposit Products
Deposits are our principal source of funds for use in lending and other general banking purposes. We offer a variety of deposit products and services with the goal of attracting a wide variety of customers, with an emphasis on small- to medium-sized businesses. The types of deposit accounts that the Company offers are typical of most commercial banks and consist of checking accounts, commercial accounts, money market accounts, savings accounts and other time deposits of various types and terms. We actively pursue business checking accounts by offering our business customers competitive rates and convenient services such as telephone, mobile and online banking. Our deposits are insured by the Federal Deposit Insurance Corporation (the “FDIC”) to the fullest extent permitted by law. See “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations—Financial Condition—Deposits” for a more detailed discussion of the Company’s deposits.
Other Banking Services
We offer basic banking products and services, which we believe are attractively priced, easily understood, convenient and readily accessible to our customers. In addition to banking during normal business hours, we offer extended drive-through hours, ATMs, mobile banking and banking by telephone, mail and online. Customers can conveniently access their accounts by phone, through a mobile application for smartphones and tablets, as well as through online banking that allows customers to obtain account balances, make deposits, transfer funds, pay bills online and receive electronic delivery of statements. We also provide safe deposit boxes, debit cards, cash management and wire transfer services, night depository, direct deposits, cashier’s checks and letters of credit. We have established relationships with correspondent banks and other independent financial institutions to provide other services requested by customers, including loan participations sold when the requested loan amount exceeds the lending limits in our lending policies.
3

Competition
We compete in the highly competitive commercial banking industry through the Bank and firmly believe that the Bank’s presence in the community and philosophy of personalized service enhances our ability to attract and retain customers. The Bank faces strong direct competition for deposit funds, lending opportunities, talented bankers, acquisition candidates and other financial-related services.
We compete primarily with other commercial banks, savings banks, savings and loan associations, credit unions, finance companies, mutual funds, insurance companies, brokerage and investment banking firms, asset-based nonbank lenders and certain other nonfinancial entities, including retail stores that may maintain their own credit programs and certain governmental organizations, all of which are actively engaged in providing various types of loans and other financial services that may offer more favorable financing than we are able to offer. Although some of our competitors are situated locally, others have statewide or nationwide presence. We believe that we are able to compete with other financial institutions because of our experienced banking professionals, the range and quality of products that we offer, our responsive decision-making with respect to loans and our emphasis on customer service, thereby establishing strong customer relationships and building customer loyalty that distinguishes us from our competitors.
We rely heavily on the continued business our bankers generate and the efforts of our officers and directors to solicit and refer potential customers, and we expect this reliance to continue for the foreseeable future. We believe that our strong market share position in our geographic areas of operation is a reflection of our ability to effectively compete with the larger banks in our market, most of which are based out of state.
Human Capital Overview
Our ability to serve our customers and communities is driven by the strength and engagement of our workforce. We are committed to attracting, developing, and retaining talented individuals who contribute to our long-term success. Our culture emphasizes collaboration, integrity, and accountability, fostering an environment where employees at all levels can thrive.
As of December 31, 2025, we had 1,053 employees. None of our workforce is currently represented by a collective bargaining unit or bound by a collective bargaining agreement.
Workforce Engagement
We believe in the value of broad employee participation and perspectives across our organization. Our internal employee listening program is designed to measure employee experience throughout the employee lifecycle. Annually, we conduct an Engagement survey, and a follow up Pulse survey. These surveys are the bedrock of our listening program, which are supplemented by a series of on-boarding surveys and other event-driven listening opportunities. Strategic employee listening is aligned with the goals of the organization, and provides indicators of our culture, illuminating insights into the strengths and opportunities we have.
We actively recruit and promote individuals based on their skills, contributions, and leadership potential, ensuring we attract top talent that reflects the communities we serve. We regularly assess workforce trends and engagement to maintain a strong and dynamic employee base.
As of December 31, 2025, the race and gender diversity of our workforce was as follows:

Number of Employees (Headcount) |  | Non-White(1) |  | Percentage of Women
1,053 |  | 50% |  | 70%

(1) Of the 1,053 employee headcount, 37 did not disclose their race, therefore, the percentage of non-white employees in the table is based on 1,016 employees.
4

Learning and Development
The basis of our culture is empowering people to thrive, and during 2025 we continued to create and deliver learning opportunities and programs designed to fulfill that purpose. “Interstellar,” our management development journey, continued in 2025, offered with Situational Leadership (SLII®) as a foundational course and “Finding Top Talent” as a course designed to prepare managers to enhance the new employee experience. These programs are designed for all managers to create their own learning journey by selecting coursework that is appropriate for their skill development needs.
We continued the deployment of our successful cultural foundation program, “The Stellar Odyssey”, as part of our new employee experience. This program has contributed to statistically significant increases in our employee engagement, which increased again in 2025, achieving an index of 88% up from 82% in 2024. We also initiated our “Service and Beyond” class, as part of our Stellar Service Standards program launch, a program designed to enhance the customer service mindset, behaviors and skills.
Our Officer Development and Internship Program (“ODP”) continued to grow in 2025, both through the recruitment of more talented ODP associates and expanding the number of candidates for our internship program. The internship program includes meaningful project work, assignments and networking, along with a research case and presentation. The internship program serves as a talent pipeline for the ODP, wherein we engage high-potential college students as interns and then offer positions to them to return as full-time employees upon graduation.
We continue to invest in the growth and development of our employees as part of our short and long-term succession strategy to ensure we are sustaining the appropriate leadership and management pipelines for continuity purposes. Our strategy also includes developing individuals for key and critical roles to ensure we are prepared to meet our growth goals.
Compensation and Benefits
We are committed to providing a comprehensive and competitive compensation and benefits program designed to attract, retain, and develop top talent. Our approach ensures that employees are recognized for their contributions while also supporting their long-term financial security, health, and professional growth.
Our compensation structure includes competitive base salaries supplemented by performance-based incentives, including an annual bonus program for all employees and long-term incentive awards for senior leadership. Additionally, we offer a 401(k) Plan with employer matching contributions to help employees build financial security for retirement.
To support the overall well-being of our employees, we provide a robust suite of benefits, including:
•Healthcare and Insurance: Comprehensive medical, dental, and vision coverage, with options for health savings accounts and flexible spending accounts.
•Work-Life Balance: Paid time-off, family leave, and flexible scheduling options where applicable.
•Employee Support Programs: Access to an Employee Assistance Program that provides resources for mental health, financial counseling, and personal development.
•Tuition Reimbursement: Financial assistance for eligible employees pursuing undergraduate, graduate, and continuing education programs that align with career development at Stellar Bank. Employees may receive reimbursement for tuition, course fees, and books, subject to annual limits and a service commitment following completion of their education.
Our compensation and benefits program reflects our commitment to fostering a supportive, rewarding, and high-performance work environment, ensuring employees feel valued and empowered to succeed.
Available Information
The Company’s website address is www.stellar.bank. We make available free of charge on or through our investor relations website our annual reports on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K and all amendments to those reports filed or furnished pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended (“Exchange Act”), as soon as reasonably practicable after such materials are electronically filed with or furnished to the Securities and Exchange Commission (“SEC”). Information contained on our website is not incorporated by reference into this Annual Report on Form 10-K and is not part of this or any other report that we file with or furnish to the SEC.
5

Regulation and Supervision
The U.S. banking industry is highly regulated under federal and state law. These laws and regulations affect the operations and performance of the Company and its subsidiaries.
Statutes, regulations and policies limit the activities in which we may engage and how we conduct certain permitted activities. Further, the bank regulatory system imposes reporting and information collection obligations. We incur significant costs related to compliance with these laws and regulations. Banking statutes, regulations and policies are continually under review by federal and state legislatures and regulatory agencies, and a change in them, including changes in how they are interpreted or implemented, could have a material adverse effect on our business, financial condition or results of operation.
The material statutory and regulatory requirements that are applicable to us and our subsidiaries are summarized below. The description below is not intended to summarize all laws and regulations applicable to us and our subsidiaries, and is based upon the statutes, regulations, policies, interpretive letters and other written guidance that are in effect as of the date of this Annual Report on Form 10-K.
Bank Holding Company and Bank Regulation
The Company is a legal entity separate and distinct from the Bank and its other subsidiaries. As a bank holding company, the Company is regulated under the Bank Holding Company Act of 1956, as amended (“BHC Act”), and it and its subsidiaries are subject to inspection, examination and supervision by the Board of Governors of the Federal Reserve System (“Federal Reserve”). As a bank holding company of a Texas state-chartered bank, the Company is also subject to supervision, regulation, examination and enforcement by the Texas Department of Banking (“TDB”).
The Bank is a Texas-chartered banking association, the deposits of which are insured by the FDIC’s Deposit Insurance Fund, up to applicable legal limits. Effective April 14, 2025, the Bank became a member of the Federal Reserve System. As a result, the Bank’s primary federal regulator is now the Federal Reserve and the TDB continues to be the Bank’s primary state regulator.
Broad Supervision, Examination and Enforcement Powers
The primary objectives of the U.S. bank regulatory system are to protect depositors by ensuring the financial safety and soundness of banking organizations, facilitate the conduct of sound monetary policy and promote fairness and transparency for financial products and services. To that end, the banking regulators have broad regulatory, examination and enforcement authority and regularly examine the operations of banking organizations.
The regulators have various formal and informal enforcement actions available if they determine that the financial condition, capital resources, asset quality, earnings prospects, management, liquidity or other aspects of a banking organization’s operations are unsatisfactory. The regulators may also take action if they determine that the banking organization or its management is violating or has violated any law or regulation or has engaged in unsafe or unsound banking practices. The regulators have the power to, among other things:
•require affirmative actions to correct any violation or practice;
•issue administrative orders that can be judicially enforced;
•direct increases in capital;
•direct the sale of subsidiaries or other assets;
•limit dividends and distributions;
•restrict growth;
•assess civil monetary penalties;
•remove officers and directors; and
•terminate deposit insurance.
6

The Dodd-Frank Act
The Dodd-Frank Wall Street Reform and Consumer Protection Act (the “Dodd-Frank Act”) mandates certain requirements on the financial services industry, including, among many other things: (1) enhanced resolution authority with respect to troubled or failing banks and their holding companies, (2) increased regulatory examination fees, (3) the creation of the Consumer Financial Protection Bureau (the “CFPB”), and (4) numerous other provisions designed to improve supervision and oversight of, and strengthen safety and soundness within, the financial services sector.
Interchange Fees
Under the Durbin Amendment to the Dodd-Frank Act (“Durbin Amendment”), the Federal Reserve adopted rules establishing standards for assessing whether the interchange fees that may be charged with respect to certain electronic debit transactions are “reasonable and proportional” to the costs incurred by issuers for processing such transactions. Interchange fees, or “swipe” fees, are charges that merchants pay to us and other card-issuing banks for processing electronic payment transactions. Federal Reserve rules applicable to financial institutions that have assets of $10 billion or more, such as the Bank, provide that the maximum permissible interchange fee for an electronic debit transaction is the sum of 21 cents per transaction plus 5 basis points multiplied by the value of the transaction. An upward adjustment of no more than 1 cent to an issuer’s debit card interchange fee is allowed if the card issuer develops and implements policies and procedures reasonably designed to achieve certain fraud-prevention standards. The Federal Reserve also has rules governing routing and exclusivity that require issuers to offer two unaffiliated networks for routing transactions on each debit or prepaid product. In August 2025, the U.S. District Court for the District of North Dakota ruled to vacate the Federal Reserve’s current interchange rules but simultaneously stayed its own vacatur pending appeal to the circuit court. The outcome of this litigation could significantly and adversely affect the fees banks can charge on debit card transactions.
The Volcker Rule
The Volcker Rule under the Dodd-Frank Act restricts banks and their affiliates from engaging in proprietary trading and investing in and sponsoring certain hedge funds and private equity funds. Since neither the Company nor the Bank engages in the types of trading or investing covered by the Volcker Rule, the Volcker Rule does not currently have any effect on our operations.
Source of Strength
Under Federal Reserve policy and federal regulations, bank holding companies are required to act as a source of financial and managerial strength to their subsidiary banks. Under this requirement, the Company is expected to commit resources to support the Bank, including at times when the Company may not be in a financial position to provide such resources. Any capital loans by a bank holding company to any of its subsidiary banks are subordinate in right of payment to depositors and to certain other indebtedness of such subsidiary banks. In the event of a bank holding company’s bankruptcy, any commitment by the bank holding company to a federal bank regulatory agency to maintain the capital of a subsidiary bank will be assumed by the bankruptcy trustee and entitled to priority of payment.
Notice and Approval Requirements Related to Control
Federal and state banking laws impose notice, application, approval or non-objection and ongoing regulatory requirements on any shareholder or other person that controls or seeks to acquire direct or indirect “control” of an FDIC-insured depository institution. These laws include the BHC Act, the Change in Bank Control Act and the Texas Banking Act. Among other things, these laws require regulatory filings by a shareholder or other person that seeks to acquire direct or indirect “control” of an FDIC-insured depository institution. The determination whether a person “controls” a depository institution or its holding company is based on all of the facts and circumstances surrounding the investment. As a general matter, a person is deemed to control a depository institution or other company if the person owns or controls 25% or more of any class of voting stock. Subject to rebuttal, a person may be presumed to control a depository institution or other company if the person owns or controls 10% or more of any class of voting stock and other regulatory criteria are met. Ownership by affiliated persons, or persons acting in concert, is typically aggregated for these purposes.
The Federal Reserve’s rules provide a framework for when a company controls a bank holding company or bank under the BHC Act. In particular, the rules set forth tiered presumptions of control in the Federal Reserve’s regulations. Under the BHC Act, a company controls a bank holding company if it controls 25% or more of any class of voting securities of the bank holding company. A company that controls less than 5% of any class of voting securities of a bank holding company is presumed not to control the bank holding company. In instances in which a company owns at least 5% but less than 25%, the Federal Reserve considers the full facts and circumstances of the relationship between the company and the bank holding company to determine whether the company controls
7

the bank holding company. As part of its determination as to control, the Federal Reserve considers, among other things, level of ownership of voting and non-voting securities, board representation, business relationships, senior management interlocks, contractual limits on major operational or policy decisions, proxies on issues, threats to dispose of securities and management agreements. The rules also provide several additional examples of presumptions of control and noncontrol, along with various ancillary provisions such as definitions of terms used in the presumptions.
Permissible Activities and Investments
Banking laws generally restrict our ability to engage in or acquire more than 5% of the voting shares of a company engaged in activities other than those determined by the Federal Reserve to be so closely related to banking as to be a proper incident thereto. The Gramm-Leach-Bliley Financial Modernization Act of 1999 (the “GLB Act”) expanded the scope of permissible activities for a bank holding company that qualifies as a financial holding company. Under the regulations implementing the GLB Act, a financial holding company may engage in additional activities that are financial in nature or incidental or complementary to a financial activity. Those activities include, among other activities, certain insurance and securities activities. Qualifications for becoming a financial holding company include, among other things, meeting certain specified capital standards and achieving certain management ratings in examinations. Bank holding companies and their subsidiaries must be well-capitalized and well-managed in order for the bank holding company and its nonbank affiliates to engage in the expanded financial activities permissible only for a financial holding company. The Company has not elected to pursue financial holding company status.
In addition, as a general matter, we must receive prior regulatory approval before establishing or acquiring a depository institution or, in certain cases, a nonbank entity.
The Texas Constitution, as amended in 1986, provides that a Texas-chartered bank has the same rights and privileges that are or may be granted to national banks domiciled in Texas. To the extent that the Texas laws and regulations may have allowed state-chartered banks to engage in a broader range of activities than national banks, the Federal Deposit Insurance Corporation Improvement Act of 1991 (“FDICIA”), has operated to limit this authority. The FDICIA provides that no state bank or subsidiary thereof may engage as a principal in any activity not permitted for national banks, unless the institution complies with applicable capital requirements and the FDIC determines that the activity poses no significant risk to the Deposit Insurance Fund of the FDIC. In general, statutory restrictions on the activities of banks are aimed at protecting the safety and soundness of depository institutions.
Branching
Texas law provides that a Texas-chartered bank can establish a branch anywhere in Texas provided that the branch is approved in advance by the TDB. The branch must also be approved by the Federal Reserve. The regulators consider a number of factors, including financial history, capital adequacy, earnings prospects, character of management, needs of the community and consistency with corporate powers. The Dodd-Frank Act permits insured state banks to engage in de novo interstate branching if the laws of the state where the new branch is to be established would permit the establishment of the branch if it were chartered by such state.
Regulatory Capital Requirements and Capital Adequacy
The bank regulators view capital levels as important indicators of an institution’s financial soundness. As a general matter, FDIC-insured depository institutions and their holding companies are required to maintain minimum capital relative to the amount and types of assets they hold. The final supervisory determination on an institution’s capital adequacy is based on the regulator’s assessment of numerous factors. As a bank holding company and a state-chartered member bank, the Company and the Bank are subject to both risk-based and leverage regulatory capital requirements.
The Company and the Bank are required to comply with applicable capital adequacy standards adopted by the Federal Reserve and the FDIC (the “Basel III Capital Rules”). The Basel III Capital Rules, among other things, require the Company to maintain an additional capital conservation buffer, composed entirely of Common Equity Tier 1 (“CET1”), of 2.50%, effectively resulting in minimum ratios of (1) CET1 to risk-weighted assets of 7.00%, (2) Tier 1 capital to risk-weighted assets of 8.50%, (3) total capital (that is, Tier 1 plus Tier 2) to risk-weighted assets of 10.50% and (4) Tier 1 capital to average quarterly assets as reported on consolidated financial statements (known as the “leverage ratio”) of 4.00%. As of December 31, 2025, the Company’s ratio of CET1 to risk-weighted assets was 14.18%, Tier 1 capital to risk-weighted assets was 14.31%, Total capital to risk-weighted assets was 15.73% and Tier 1 capital to average tangible quarterly assets was 11.52%.
8

Banking institutions that fail to meet the effective minimum ratios once the capital conservation buffer is taken into account, as detailed above, will be subject to constraints on capital distributions, including dividends and share repurchases, and certain discretionary executive compensation. The severity of the constraints depends on the amount of the shortfall and the institution’s “eligible retained income” (that is, four quarter trailing net income, net of distributions and tax effects not reflected in net income).
The Basel III Capital Rules also changed the capital categories for insured depository institutions for purposes of prompt corrective action as discussed below under “Prompt Corrective Action”. Under the Basel III Capital Rules, to be well capitalized, an insured depository institution is required to maintain a minimum CET1 capital ratio of at least 6.5%, a Tier 1 risk-based capital ratio of at least 8.0%, a total risk-based capital ratio of at least 10.0%, and a leverage ratio of at least 5.0%. In addition, the Basel III Capital Rules established more conservative standards for including an instrument in regulatory capital and impose certain deductions from and adjustments to the measure of CET1 capital.
Under the Basel III Capital Rules, banking organizations were provided a one-time option in their initial regulatory financial report filed after January 1, 2015, to remove certain components of accumulated other comprehensive income from the computation of common equity regulatory capital. We elected to opt-out of the requirement to include most components of accumulated other comprehensive income in regulatory capital. Accordingly, amounts reported as accumulated other comprehensive income/loss related to securities available for sale do not increase or reduce regulatory capital and are not included in the calculation of risk-based capital and leverage ratios. For banking organizations with less than $15 billion in total assets, existing trust preferred securities and cumulative perpetual preferred stock continue to be included in regulatory capital while other instruments are disallowed. The Basel III Capital Rules also provide additional constraints on the inclusion of minority interests, mortgage servicing assets, deferred tax assets and certain investments in the capital of unconsolidated financial institutions in Tier 1 capital, as well as providing stricter risk weighting rules to these assets.
The Basel III Capital Rules also provide stricter rules related to the risk weighting of past due and certain commercial real estate loans, as well as on some equity investment exposures, and replace the existing credit rating approach for determining the risk weighting of securitization exposures with an alternative approach.
The federal banking agencies’ risk-based and leverage ratios are minimum supervisory ratios generally applicable to banking organizations that meet certain specified criteria. The federal bank regulatory agencies may set capital requirements for a particular banking organization that are higher than the minimum ratios when circumstances warrant. Federal Reserve guidelines also provide that banking organizations experiencing internal growth or making acquisitions will be expected to maintain strong capital positions substantially above the minimum supervisory levels, without significant reliance on intangible assets.
Prompt Corrective Action
Under the Federal Deposit Insurance Act (the “FDIA”), the federal bank regulatory agencies must take prompt corrective action against undercapitalized U.S. depository institutions. U.S. depository institutions are assigned one of five capital categories: “well capitalized,” “adequately capitalized,” “undercapitalized,” “significantly undercapitalized,” and “critically undercapitalized,” and are subjected to different regulation corresponding to the capital category within which the institution falls. A depository institution is deemed to be “well capitalized” if it has a total risk-based capital ratio of 10.0% or greater, a CET1 capital ratio of 6.5% or greater, a Tier 1 risk-based capital ratio of 8.0% or greater, a leverage ratio of 5.0% or greater and the institution is not subject to an order, written agreement, capital directive or prompt corrective action directive to meet and maintain a specific level for any capital measure. A depository institution is deemed to be “adequately capitalized” if it has a total risk-based capital ratio of 8.0% or greater, a common equity Tier 1 capital ratio of 4.5% or greater, a Tier 1 risk-based capital ratio of 6.0% or greater, a leverage ratio of 4.0% or greater, and does not meet the criteria for a “well capitalized” bank. A depository institution is “undercapitalized” if it has a total risk-based capital ratio of less than 8.0%, a common equity Tier 1 capital ratio less than 4.5%, a Tier 1 risk-based capital ratio of less than 6.0% or a leverage ratio of less than 4.0%. Under certain circumstances, a well-capitalized, adequately capitalized or undercapitalized institution may be treated as if the institution were in the next lower capital category. A banking institution that is undercapitalized is required to submit a capital restoration plan. The capital restoration plan will not be accepted by the regulators unless each company having control of the undercapitalized institution guarantees the subsidiary’s compliance with the capital restoration plan up to a certain specified amount.
Failure to meet capital guidelines could subject the institution to a variety of enforcement remedies by federal bank regulatory agencies, including termination of deposit insurance upon notice and hearing, restrictions on certain business activities and appointment of the FDIC as conservator or receiver. As of December 31, 2025, the Bank met the requirements to be “well capitalized” under the prompt corrective action regulations.
9

The prompt corrective action regulations do not apply to bank holding companies. However, the Federal Reserve is authorized to take appropriate action at the bank holding company level, based upon the undercapitalized status of the bank holding
company’s depository institution subsidiaries.
Regulatory Limits on Dividends, Distributions and Repurchases
As a bank holding company, we are subject to certain restrictions on paying dividends under applicable federal and Texas laws and regulations. The Federal Reserve has issued a policy statement that provides that a bank holding company should not pay dividends unless (1) its net income over the last four quarters (net of dividends paid) has been sufficient to fully fund the dividends, (2) the prospective rate of earnings retention appears to be consistent with the capital needs, asset quality and overall financial condition of the bank holding company and its subsidiaries and (3) the bank holding company will continue to meet minimum required capital adequacy ratios. Accordingly, a bank holding company should not pay cash dividends that exceed its net income or that can only be funded in ways that weaken the bank holding company’s financial health, such as by borrowing. The Dodd-Frank Act and Basel III capital requirements impose additional restrictions on the ability of banking institutions to pay dividends.
Substantially all of our income, and a principal source of our liquidity, are dividends from the Bank. The ability of the Bank to pay dividends to us is restricted by federal and state laws, regulations and policies.
Capital adequacy requirements serve to limit the amount of dividends that may be paid by the Bank. Under the FDIA, an insured depository institution such as the Bank is prohibited from making capital distributions, including the payment of dividends, if, after making such distribution, the institution would become “undercapitalized.” The Federal Reserve may further restrict the payment of dividends by requiring the Bank to maintain a higher level of capital than would otherwise be required in order to be adequately capitalized for regulatory purposes. Payment of dividends by the Bank also may be restricted at any time at the discretion of the appropriate regulator if it deems the payment to constitute an unsafe and unsound banking practice. As noted above, the capital conservation buffer created under the Basel III Capital Rules could also have the effect of limiting the payment of capital distributions from the Bank.
In certain circumstances, the Company’s repurchases of its common stock may be subject to a prior approval or notice requirement under other regulations, policies or supervisory expectations of the Federal Reserve. Any redemption or repurchase of preferred stock or subordinated debt remains subject to the prior approval of the Federal Reserve.
Reserve Requirements
Although the Federal Reserve currently maintains reserve requirement ratios at zero percent, it retains the authority to impose reserve requirements against a bank’s transaction accounts. In addition, reserves must be maintained on certain non-personal time deposits. These reserves must be maintained in the form of vault cash or in an account at a Federal Reserve Bank.
Limits on Transactions with Affiliates and Insiders
Insured depository institutions are subject to restrictions on their ability to conduct transactions with affiliates and other related parties. Section 23A of the Federal Reserve Act imposes quantitative limits, qualitative requirements, and collateral requirements on certain transactions by an insured depository institution with, or for the benefit of, its affiliates. Transactions covered by Section 23A include loans, extensions of credit, investment in securities issued by an affiliate and acquisitions of assets from an affiliate. Section 23B of the Federal Reserve Act requires that most types of transactions by an insured depository institution with, or for the benefit of, an affiliate be on terms, substantially the same or at least as favorable to the insured depository institution as if the transaction were conducted with an unaffiliated third-party.
The Dodd-Frank Act generally enhances the restrictions on transactions with affiliates under Section 23A and 23B of the Federal Reserve Act, including an expansion of the definition of “covered transactions” and a clarification regarding the amount of time for which collateral requirements regarding covered credit transactions must be satisfied. The ability of the Federal Reserve to grant exemptions from these restrictions is also narrowed by the Dodd-Frank Act, including by requiring coordination with other bank regulators.
The Federal Reserve’s Regulation O imposes restrictions and procedural requirements in connection with the extension of credit by an insured depository institution to directors, executive officers, principal shareholders and their related interests.
10

Brokered Deposits
The FDIA restricts the use of brokered deposits by certain depository institutions. Under the applicable regulations, a “well capitalized insured depository institution” may solicit and accept, renew or roll over any brokered deposit without restriction. An “adequately capitalized insured depository institution” may not accept, renew or roll over any brokered deposit unless it has applied for and been granted a waiver of this prohibition by the Federal Reserve. An “undercapitalized insured depository institution” may not accept, renew or roll over any brokered deposit. The Federal Reserve may, on a case-by-case basis and upon application by an adequately capitalized insured depository institution, waive the restriction on brokered deposits upon a finding that the acceptance of brokered deposits does not constitute an unsafe or unsound practice with respect to such institution.
In addition, the FDIA prohibits an insured depository institution from offering interest rates on any deposits significantly higher than the prevailing rate in the bank’s normal market area or nationally (depending upon where the deposits are solicited), unless it is well capitalized or is adequately capitalized and receives a waiver from the Federal Reserve.
Concentrated Commercial Real Estate Lending Guidance
The federal banking agencies have promulgated guidance governing financial institutions with concentrations in commercial real estate lending. The guidance provides that a bank has a concentration in commercial real estate lending if (1) total reported loans for construction, land development, and other land represent 100% or more of total capital or (2) total reported loans secured by multifamily and non-farm non-residential properties and loans for construction, land development and other land represent 300% or more of total capital and the bank’s commercial real estate loan portfolio has increased 50% or more during the prior 36 months. Owner-occupied commercial real estate loans are excluded from this second category. If a concentration is present, management must employ heightened risk management practices that address the following key elements: board and management oversight and strategic planning, portfolio management, development of underwriting standards, risk assessment and monitoring through market analysis and stress testing and maintenance of increased capital levels as needed to support the level of commercial real estate lending.
Deposit Insurance and Deposit Insurance Assessments
The FDIC is an independent federal agency that insures the deposits of federally insured depository institutions up to applicable limits. The FDIC also has certain regulatory, examination and enforcement powers with respect to FDIC-insured institutions. The deposits of the Bank are insured by the FDIC up to applicable limits. As a general matter, the maximum deposit insurance amount is $250 thousand per depositor. FDIC-insured depository institutions are required to pay deposit insurance assessments to the FDIC. Deposit insurance assessments are based on average total assets minus average tangible equity. Institutions assigned to higher risk categories (that is, institutions that pose a higher risk of loss to the Deposit Insurance Fund) pay assessments at higher rates than institutions that pose a lower risk. For larger institutions with more than $10 billion in assets such as Stellar Bank, the FDIC uses a performance score and a loss-severity score that are used to calculate an initial assessment rate. In calculating these scores, the FDIC uses a bank’s capital level and supervisory ratings and certain financial measures to assess an institution’s ability to withstand asset-related stress and funding-related stress. The FDIC has the ability to make discretionary adjustments to the total score based upon significant risk factors that are not adequately captured in the calculations.
In November 2023, the FDIC issued a final rule to implement a special assessment to recover losses to the Deposit Insurance Fund incurred as a result of recent bank failures and the FDIC’s use of the systemic risk exception to cover certain deposits that were otherwise uninsured. The special assessment was based on estimated uninsured deposits as of December 31, 2022 (excluding the first $5.0 billion) and was assessed at a quarterly rate of 3.36 basis points, over eight quarterly assessment periods, beginning in the first quarter of 2024. Under the final rule, the estimated loss pursuant to the systemic risk determination will be periodically adjusted, and the FDIC has retained the ability to cease collection early, extend the special assessment collection period and impose a final shortfall special assessment on a one-time basis. The extent to which any such additional future assessments will impact our future deposit insurance expense is currently uncertain.
Depositor Preference
The FDIA provides that, in the event of the “liquidation or other resolution” of an insured depository institution, the claims of depositors of the institution (including the claims of the FDIC as subrogee of insured depositors) and certain claims for administrative expenses of the FDIC as a receiver will have priority over other general unsecured claims against the institution. If the Company invests in or acquires an insured depository institution that fails, insured and uninsured depositors, along with the FDIC, will have priority in payment ahead of unsecured, non-deposit creditors, including the Company, with respect to any extensions of credit they have made to such insured depository institution.
11

Anti-Money Laundering and OFAC
Under federal law, financial institutions must maintain anti-money laundering programs that include established internal policies, procedures and controls, a designated compliance officer, an ongoing employee training program and testing of the program by an independent audit function. Financial institutions are also prohibited from entering into specified financial transactions and account relationships and must meet enhanced standards for due diligence and customer identification in their dealings with non-U.S. financial institutions and non-U.S. customers. Financial institutions must take reasonable steps to conduct enhanced scrutiny of account relationships to guard against money laundering and to report any suspicious transactions, and law enforcement authorities have been granted increased access to financial information maintained by financial institutions. Bank regulators routinely examine institutions for compliance with these obligations and they must consider an institution’s compliance with such obligations in connection with the regulatory review of applications, including applications for mergers and acquisitions. The regulatory authorities have imposed cease and desist orders and civil money penalty sanctions against institutions found to be violating these obligations.
The U.S. Department of the Treasury’s Office of Foreign Assets Control (“OFAC”) is responsible for helping to ensure that U.S. entities do not engage in transactions with certain prohibited parties, as defined by various Executive Orders and Acts of Congress. OFAC publishes lists of persons, organizations and countries suspected of aiding, harboring or engaging in terrorist acts, known as Specially Designated Nationals and Blocked Persons. If the Company or the Bank finds a name on any transaction, account or wire transfer that is on an OFAC list, the Company or the Bank must freeze or block such account or transaction, file a suspicious activity report and notify the appropriate authorities.
On January 1, 2021, Congress passed the National Defense Authorization Act for Fiscal Year 2021 (“NDAA”), which enacted the most significant overhaul of the Bank Secrecy Act (“BSA”), and related anti-money laundering laws since the Patriot Act. The Anti-Money Laundering Act of 2020 (“AMLA”), which amends the BSA, was included in the NDAA. Among other things, it codifies a risk-based approach to anti-money laundering compliance for financial institutions; requires the U.S. Department of the Treasury to promulgate priorities for anti-money laundering and countering the financing of terrorism; requires the development of standards for testing technology and internal processes for BSA compliance; expands enforcement- and investigation-related authority, including increasing available sanctions for certain BSA violations; and expands BSA whistleblower incentives and protections. Notable amendments include (1) significant changes to the collection of beneficial ownership information and the establishment of a beneficial ownership registry, which requires corporate entities (generally, any corporation, LLC, or other similar entity with 20 or fewer employees and annual gross income of $5 million or less) to report beneficial ownership information to FinCEN (which will be maintained by Financial Crimes Enforcement Network (“FinCEN”), and made available upon request to financial institutions), (2) enhanced whistleblower provisions, which provide that one or more whistleblowers who voluntarily provide original information leading to the successful enforcement of violations of the AML laws in any judicial or administrative action brought by the Secretary of the Treasury or the Attorney General resulting in monetary sanctions exceeding $1 million (including disgorgement and interest but excluding forfeiture, restitution, or compensation to victims) will receive not more than 30 percent of the monetary sanctions collected and will receive increased protections, (3) increased penalties for violations of the BSA, (4) improvements to existing information sharing provisions that permit financial institutions to share information relating to SARs with foreign branches, subsidiaries, and affiliates (except those located in China, Russia, or certain other jurisdictions) for the purpose of combating illicit finance risks and (5) expanded duties and powers of FinCEN. Many of the statutory provisions in the AMLA will require additional rulemakings, reports and other measures, and the impact of the AMLA will depend on, among other things, rulemaking and implementation guidance. In June 2021, the Financial Crimes Enforcement Network, a bureau of the U.S. Department of the Treasury, issued the priorities for anti-money laundering and countering the financing of terrorism policy required under the AMLA. The priorities include corruption, cybercrime, terrorist financing, fraud, transnational crime, drug trafficking, human trafficking and proliferation financing.
Consumer Laws and Regulations
Banking organizations are subject to numerous laws and regulations intended to protect consumers. These laws include, among others:
•Truth in Lending Act;
•Truth in Savings Act;
•Electronic Funds Transfer Act;
•Expedited Funds Availability Act;
•Equal Credit Opportunity Act;
•Fair and Accurate Credit Transactions Act;
•Fair Housing Act;
•Fair Credit Reporting Act;
12

•Fair Debt Collection Act;
•Gramm-Leach-Bliley Act;
•Home Mortgage Disclosure Act;
•Right to Financial Privacy Act;
•Real Estate Settlement Procedures Act;
•laws regarding unfair and deceptive acts and practices; and
•usury laws.
Many states and local jurisdictions have consumer protection laws analogous to, and in addition to, those listed above. These federal, state and local laws regulate the manner in which financial institutions deal with customers when taking deposits, making loans or conducting other types of transactions. Failure to comply with these laws and regulations could give rise to regulatory sanctions, customer rescission rights, action by state and local attorneys general and civil or criminal liability.
Consumer Financial Protection Bureau. We are subject to a number of federal and state consumer protection laws that extensively govern our relationship with our customers. These laws include the Equal Credit Opportunity Act, the Fair Credit Reporting Act, the Truth in Lending Act, the Truth in Savings Act, the Electronic Fund Transfer Act, the Expedited Funds Availability Act, the Home Mortgage Disclosure Act, the Fair Housing Act, the Real Estate Settlement Procedures Act, the Fair Debt Collection Practices Act, the Service Members Civil Relief Act and these laws’ respective state-law counterparts, as well as state usury laws and laws regarding unfair and deceptive acts and practices. These and other federal laws, among other things, require disclosures of the cost of credit and terms of deposit accounts, provide substantive consumer rights, prohibit discrimination in credit transactions, regulate the use of credit report information, provide financial privacy protections, prohibit unfair, deceptive and abusive practices, restrict our ability to raise interest rates and subject us to substantial regulatory oversight. Violations of applicable consumer protection laws can result in significant potential liability from litigation brought by customers, including actual damages, restitution and attorneys’ fees. Federal bank regulators, state attorneys general and state and local consumer protection agencies may also seek to enforce consumer protection requirements and obtain these and other remedies, including regulatory sanctions, customer rescission rights, action by the state and local attorneys general in each jurisdiction in which we operate and civil money penalties. Failure to comply with consumer protection requirements may also result in our failure to obtain any required bank regulatory approval for merger or acquisition transactions we may wish to pursue or our prohibition from engaging in such transactions even if approval is not required.
The CFPB is a federal agency responsible for implementing, examining and enforcing compliance with federal consumer protection laws. The CFPB has broad rulemaking authority for a wide range of consumer financial laws that apply to all banks, including, among other things, laws relating to fair lending and the authority to prohibit “unfair, deceptive or abusive” acts and practices. Abusive acts or practices are defined as those that materially interfere with a consumer’s ability to understand a term or condition of a consumer financial product or service or take unreasonable advantage of a consumer’s (1) lack of financial savvy, (2) inability to protect himself in the selection or use of consumer financial products or services, or (3) reasonable reliance on a covered entity to act in the consumer’s interests. The CFPB can issue cease-and-desist orders against banks and other entities that violate consumer financial laws. The CFPB may also institute a civil action against an entity in violation of federal consumer financial law in order to impose a civil penalty or injunction. The CFPB has examination and enforcement authority over all banks with more than $10 billion in assets, as well as their affiliates. Banking regulators take into account compliance with consumer protection laws when considering approval of a proposed transaction.
Mortgage loan origination. The Dodd-Frank Act authorized the CFPB to establish certain minimum standards for the origination of residential mortgages, including a determination of the borrower’s ability to repay a residential mortgage loan. Under the Dodd-Frank Act, financial institutions may not make a residential mortgage loan unless they make a “reasonable and good faith determination” that the consumer has a “reasonable ability” to repay the loan. The Dodd-Frank Act allows borrowers to raise certain defenses to foreclosure, but provides a full or partial safe harbor from such defenses for loans that are “qualified mortgages.” The CFPB has promulgated rules to, among other things, specify the types of income and assets that may be considered in the ability to repay determination, the permissible sources for verification and the required methods of calculating the loan’s monthly payments. The rules extend the requirement that creditors verify and document a borrower’s income and assets to include all information that creditors rely on in determining repayment ability. The rules also provide further examples of third-party documents that may be relied on for such verification, such as government records and check cashing or funds transfer service receipts. The rules also define “qualified mortgages,” imposing both underwriting standards—for example, a borrower’s debt to income ratio may not generally exceed 43% and limits on the terms of their loans. Points and fees are subject to a relatively stringent cap, and the terms include a wide array of payments that may be made in the course of closing a loan. Certain loans, including interest only loans and negative amortization loans, cannot be qualified mortgages.
13

The Community Reinvestment Act
The Community Reinvestment Act (“CRA”) and related regulations are intended to encourage banks to help meet the credit needs of their service areas, including low- and moderate-income neighborhoods, consistent with safe and sound operations. The bank regulators examine and assign each bank a public CRA rating. The CRA requires bank regulators to take into account the bank’s record in meeting the needs of its service area when considering an application by a bank to establish or relocate a branch or to conduct certain mergers or acquisitions. The Federal Reserve is required to consider the CRA records of a bank holding company’s controlled banks when considering an application by the bank holding company to acquire a banking organization or to merge with another bank holding company. When we or the Bank apply for regulatory approval to engage in certain transactions, the regulators will consider the CRA record of target institutions and our depository institution subsidiaries. An unsatisfactory CRA record could substantially delay approval or result in a withdrawal or denial of an application. The regulatory agency’s assessment of the institution’s record is made available to the public. The Bank received an overall CRA rating of “satisfactory” on its most recent CRA examination.
Incentive Compensation Guidance
The Federal Reserve reviews, as part of its regular, risk-focused examination process, the incentive compensation arrangements of banking organizations, such as the Company, that are not “large, complex banking organizations.” These reviews are tailored to each organization based on the scope and complexity of the organization’s activities and the prevalence of incentive compensation arrangements. Deficiencies will be incorporated into the organization’s supervisory ratings, which can affect the organization’s ability to make acquisitions and take other actions. Enforcement actions may be taken against a banking organization if its incentive compensation arrangements, or related risk-management control or governance processes, pose a risk to the organization’s safety and soundness and the organization is not taking prompt and effective measures to correct the deficiencies.
In July 2010, the federal banking agencies issued guidance on incentive compensation policies that applies to all banking organizations supervised by the agencies, including the Company and the Bank. Pursuant to the guidance, to be consistent with safety and soundness principles, a banking organization’s incentive compensation arrangements should: (1) provide employees with incentives that appropriately balance risk and reward, (2) be compatible with effective controls and risk management and (3) be supported by strong corporate governance including active and effective oversight by the banking organization’s board of directors. Monitoring methods and processes used by a banking organization should be commensurate with the size and complexity of the organization and its use of incentive compensation.
Section 956 of the Dodd-Frank Act requires the federal bank regulatory agencies and the SEC to establish joint regulations or guidelines prohibiting incentive-based payment arrangements at specified regulated entities that encourage inappropriate risk-taking by providing an executive officer, employee, director or principal shareholder with excessive compensation, fees or benefits or that could lead to material financial loss to the entity. The federal bank regulatory agencies issued such proposed rules in April 2011 and issued a revised proposed rule in June 2016 implementing the requirements and prohibitions set forth in Section 956. The revised proposed rule would apply to all banks, among other institutions, with at least $1 billion in average total consolidated assets, for which it would go beyond the existing guidance to (1) prohibit certain types and features of incentive-based compensation arrangements for senior executive officers, (2) require incentive-based compensation arrangements to adhere to certain basic principles to avoid a presumption of encouraging inappropriate risk, (3) require appropriate board or committee oversight, (4) establish minimum recordkeeping and (5) mandate disclosures to the appropriate federal banking agency.
Cybersecurity
Federal bank regulatory agencies have adopted guidelines for establishing information security standards and cybersecurity programs for implementing safeguards. These guidelines, along with related regulatory materials, increasingly focus on risk management and processes related to information technology and the use of third-parties in the provision of financial services. State regulators have also been increasingly active in implementing privacy and cybersecurity standards and regulations. Many states, including Texas, have also recently implemented or modified their data breach notification, information security and data privacy requirements. We expect this trend of state-level activity in those areas to continue and are continually monitoring developments in the states in which our customers are located.
The SEC requires public companies to disclose material cybersecurity incidents they experience and to disclose on an annual basis material information regarding their cybersecurity risk management, processes, strategy, and governance. The rules also generally require public companies to disclose on Form 8-K any cybersecurity incident it determines to be material within four business days of such determination and to describe the material aspects of the incident’s nature, scope, and timing, as well as its
14

material impact or reasonably likely material impact on the company. See “Item 1C. Cybersecurity” for a discussion of the Company’s cybersecurity risk management, strategy and governance.
The federal banking regulators regularly issue new guidance and standards, and update existing guidance and standards, regarding cybersecurity intended to enhance cyber risk management among financial institutions. Financial institutions are expected to
comply with such guidance and standards and to accordingly develop appropriate security controls and risk management processes. If
we fail to observe such regulatory guidance or standards, we could be subject to various regulatory sanctions, including financial
penalties. Banking organizations are required to notify their primary banking regulator within 36 hours of determining that a “computer-security incident” has materially disrupted or degraded, or is reasonably likely to materially disrupt or degrade, the banking organization’s ability to carry out banking operations or deliver banking products and services to a material portion of its customer base, its businesses and operations that would result in material loss, or its operations that would impact the stability of the United States.
State regulators have also been increasingly active in implementing privacy and cybersecurity standards and regulations. Recently, several states have adopted regulations requiring certain financial institutions to implement cybersecurity programs, and many states, including Texas, have also recently implemented or modified their data breach notification, information security and data privacy requirements. The Company expects this trend of state-level activity in those areas to continue and are continually monitoring developments in the stated in which its customers are located.
Changes in Laws, Regulations or Policies
Federal, state and local legislators and regulators regularly introduce measures or take actions that would modify the regulatory requirements applicable to banks, their holding companies and other financial institutions. Changes in laws, regulations or regulatory policies could adversely affect the operating environment for us in substantial and unpredictable ways, increase or decrease our cost of doing business, impose new restrictions on the way in which the Company conducts its operations or modify significant operational constraints that might impact the Company’s profitability. Whether new legislation will be enacted and, if enacted, the effect that it, or any implementing regulations, would have on the Company and its subsidiaries’ business, financial condition or results of operations cannot be predicted. A change in laws, regulations or regulatory policies may have a material adverse effect on the Company’s business and results of operations.
Effect on Economic Environment
The policies of regulatory authorities, including the monetary policy of the Federal Reserve, have a significant effect on the operating results of bank holding companies and their subsidiaries. Among the means available to the Federal Reserve to affect the money supply are open market operations in U.S. government securities, changes in the discount rate on member bank borrowings and changes in reserve requirements with respect to deposits. These means are used in varying combinations to influence overall growth and distribution of bank loans, investments and deposits, and their use may affect interest rates charged on loans or paid for deposits. Federal Reserve monetary policies have materially affected the operating results of commercial banks in the past and are expected to continue to do so in the future. The Company cannot predict the nature of future monetary policies and the effect of such policies on its business and earnings.
ITEM 1A. RISK FACTORS
Summary of Risk Factors
The Company’s business is subject to a number of risks, including risks that may prevent it from achieving its business objectives or may adversely affect its business, reputation, financial condition, results of operations, revenue and future prospects. These risks are discussed more fully in the section following this summary and include, but are not limited to, the following:
Risks Related to the Pending Merger with Prosperity Bancshares, Inc.
•we may not complete the merger transaction;
•we expect to incur substantial costs in connection with the merger;
•termination of the merger agreement could trigger payment of a termination fee by us; and
•we may not realize the anticipated benefits of the proposed merger.
Risks Related to Business and Operations
External and Market Related Risks
•negative developments affecting the financial services industry;
15

•challenging market conditions and economic trends;
•inflationary pressures and rising prices;
•concentration of our business in our market and largely dependent upon the growth and welfare of our market;
•strong competition to attract and retain customers;
•adverse impact of geopolitical events, wars, natural disasters, climate change, pandemics and other catastrophes;
•ability to retain bankers and recruit additional successful bankers;
•operations may be adversely affected by labor shortages, turnover and labor cost increases; and
•the ability of our executive officers and other key individuals to continue the implementation of our long-term business strategy.
Growth Strategy Risks
•risks of pursuing additional acquisitions; and
•goodwill and other intangibles recorded in connection with a business acquisition may become impaired.
Credit and Lending Risks
•a significant percentage of our loan portfolio is comprised of real estate loans, including commercial real estate and construction, land development and other land loan portfolios, which expose us to credit risks that may be greater than the risks related to other types of loans;
•a large portion of our loan portfolio is comprised of commercial and industrial loans secured by receivables, inventory, equipment or other commercial collateral;
•we focus our business development and marketing strategy primarily on lending to small- to medium-sized businesses who may have fewer resources to weather adverse business developments;
•our allowance for credit losses may not be sufficient to cover actual losses; and
•failure to originate SBA loans in compliance with SBA guidelines could result in losses on the guaranteed portion of our SBA loans.
Liquidity Risks
•lack of liquidity could impair our ability to fund operations;
•loss of government banking deposits within a short period of time could negatively impact liquidity and earnings; and
•additional capital and funding may not be available when needed or at all.
Interest Rate Risks
•the impact of fluctuations in interest rates; and
•potential losses related to our securities portfolio, particularly if interest rates increase or economic and market conditions deteriorate.
Risks Related to Cybersecurity, Artificial Intelligence, Third-Parties and Technology
•we are dependent on information technology and telecommunications provided by third-parties;
•fraudulent activity, breaches of information security and cybersecurity attacks could have an adverse effect on our business; and
•continuing need for technological change, challenges resources to effectively implement new technology or operational challenges when implementing new technology.
Risks Related to Legal, Reputational and Compliance Matters
•failure to comply with laws regarding the privacy, information security and protection of personal information;
•employee errors and customer or employee fraud;
•the accuracy and completeness of information provided by the Company’s borrowers and counterparties;
•potential environmental liabilities in connection to our properties or real estate we foreclose on;
•potential claims and litigation pertaining to intellectual properties;
•additional regulatory requirements in connection with exceeding $10 billion in total assets; and
•failure to maintain the Company’s reputation.
Risks Related to the Regulation of the Company’s Industry
•the Company operates in a highly regulated industry;
•failure to comply with any supervisory actions;
•new activities and expansion plans may require regulatory approval;
•noncompliance and enforcement action under the BSA and other anti-money laundering statutes and regulations;
•failure to comply with economic and trade sanctions or anti-corruption laws;
•risks associated with failure to comply with numerous federal and state lending laws designed to protect consumers;
•increases in FDIC deposit insurance premiums;
•Federal Reserve may require the Company to commit capital resources to support the Bank;
•the potential effects of the soundness, creditworthiness and liquidity of other financial institutions;
16

•monetary policies and regulations of the Federal Reserve may adversely affect the Company's business; and
•risks of loans to and deposits from related parties.
Risks Related to the Company’s Common Stock
•fluctuations in the market price of the Company’s common stock;
•priority of the holders of the Company’s debt obligations over its common stock with respect to payment;
•additional dilution of the percentage ownership of the Company’s shareholders from future sales and issuances of its capital stock or rights to purchase common stock;
•potential future issuance of shares of preferred stock;
•dependence upon the Bank for cash flow and restrictions on the Bank’s ability to make cash distributions;
•anti-takeover effect of certain provisions of the Company’s corporate organizational documents and provisions of federal and state law; and
•bylaws could limit a shareholder’s ability to obtain a favorable forum for disputes with the Company.
Risk Factors
An investment in the Company's common stock is subject to risks inherent to our business. Before you decide to invest in our common stock, you should carefully consider the risks and uncertainties described below, together with all the other information in this Annual Report on Form 10-K including “Part II.—Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations” and the consolidated financial statements and the related notes in “Part II.—Item 8. Financial Statements and Supplementary Data.” If any of the following risks occur, the Company’s business, reputation, financial condition, results of operations, revenue and future prospects could be seriously harmed. As a result, the trading price of the Company’s common stock could decline, and shareholders could lose all or part of their investment. Some statements in this Annual Report on Form 10-K, including statements in the following risk factors section, constitute forward‑looking statements. Please refer to “Cautionary Note Regarding Forward‑Looking Statements” an d “Part II.—Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations” in this Annual Report on Form 10-K.
Risks Related to the Pending Merger with Prosperity Bancshares, Inc.
We may not complete the pending merger transaction with Prosperity within the time frame we anticipate or at all, which could have an adverse effect on our business, financial results, operations and/or the market price of our common stock.
On January 27, 2026, we entered into the Merger Agreement with Prosperity, pursuant to which, upon the terms and subject to the conditions set forth therein, the Company will merge with and into Prosperity, with Prosperity continuing as the surviving corporation in the Merger.
The completion of the Merger is subject to customary conditions, including (1) approval of the Merger Agreement by the Company’s shareholders, (2) authorization for listing on the New York Stock Exchange of the shares of Prosperity Common Stock to be issued in the Merger, subject to official notice of issuance, (3) the receipt of required regulatory approvals, including the approval or waiver of prior approval of the Board of Governors of the Federal Reserve System, the Federal Deposit Insurance Corporation and the Texas Department of Banking, (4) effectiveness of the registration statement on Form S-4 for the Prosperity Common Stock to be issued in the Merger, and (5) the absence of any order, injunction, decree or other legal restraint preventing the completion of the Merger, the Bank Merger or any of the other transactions contemplated by the Merger Agreement or making the completion of the Merger, the Bank Merger or any of the other transactions contemplated by the Merger Agreement illegal. Each party’s obligation to complete the Merger is also subject to certain additional customary conditions, including (1) subject to certain exceptions, the accuracy of the representations and warranties of the other party, (2) performance in all material respects by the other party of its obligations under the Merger Agreement and (3) receipt by such party of an opinion from counsel to the effect that the Merger will qualify as a reorganization within the meaning of Section 368(a) of the Internal Revenue Code of 1986, as amended.
The Merger Agreement provides certain termination rights for both Prosperity and the Company and further provides that a termination fee of $78.0 million will be payable by the Company upon termination of the Merger Agreement under certain circumstances.
If the Merger is not completed within the expected time frame or at all, we may be subject to a number of material risks. The price of our common stock may decline to the extent that current market prices of our common stock reflect a market assumption that the Merger will be completed. We could also be required to pay Prosperity a termination fee of $78 million if the Merger Agreement is terminated under specific circumstances set forth in the Merger Agreement. The failure to complete the Merger also may result in negative publicity, a decline in investor confidence, stockholder litigation being brought against us, adverse impacts to our relationships with our existing and prospective employees, customers, regulators and other business partners, us being unable to recruit prospective employees or to retain and motivate existing employees, and adverse financial impacts due to costs incurred in connection
17

with the Merger. We may also be required to devote significant time and resources to litigation related to any failure to complete the Merger or related to any enforcement proceeding commenced against us to perform our obligations under the Merger Agreement.
The pendency of the Merger with Prosperity could adversely affect our business, financial results, operations and/or the market price of our common stock.
Our efforts to complete the Merger could cause substantial disruptions in, and create uncertainty surrounding, our business, which may materially adversely affect our financial condition, our results of operation and our business. Uncertainty as to whether the Merger will be completed may affect our ability to recruit prospective employees or to retain and motivate existing employees. Employee retention may be particularly challenging while the Merger is pending because employees may experience uncertainty about their roles following consummation of the Merger. Our management’s and certain of our employees’ attention is being directed toward the completion of the Merger and thus is being diverted to some extent from our day-to-day operations. Uncertainty as to our future could adversely affect our business and our relationship with collaborators, customers, regulators, suppliers and other business partners. For example, customers may defer decisions concerning working with us, or seek to change existing business relationships with us. Changes to or termination of existing business relationships could adversely affect our results of operations and financial condition, as well as the market price of our common stock. The adverse effects of the pendency of the Merger could be exacerbated by any delays in completion of the Merger or termination of the Merger Agreement.
While the merger is in effect, we are subject to restrictions on our business activities.
While the Merger Agreement is in effect, we are subject to restrictions on our business activities, generally requiring us to conduct our business, in all material respects, in the ordinary course consistent with past practice, and subjecting us to a variety of specified restrictions absent Prosperity’s prior consent. These limitations include, among other things, restrictions on our ability to acquire other businesses and assets, dispose of our assets, make investments, enter into certain contracts, repurchase or issue securities, pay dividends, make capital expenditures, take certain actions relating to intellectual property, amend our organizational documents, and incur indebtedness. Furthermore, we are limited in our ability to solicit other acquisition proposals during the pendency of the Merger. These restrictions could prevent us from pursuing strategic business opportunities, taking actions with respect to our business that we may consider advantageous and responding effectively and/or timely to competitive pressures and industry developments, and may, as a result, materially and adversely affect our business, results of operations and financial condition, which in turn could materially and adversely affect the price of our common stock.
The Merger Agreement contains provisions that could make it difficult or a third-party to acquire us prior to the competition of the Merger.
The Merger Agreement contains restrictions on our ability to obtain a third-party proposal for an acquisition of the Company. These provisions include our agreement not to solicit or initiate any additional discussions with third parties regarding other proposals to acquire us, as well as restrictions on our ability to respond to such proposals, subject to fulfillment of certain fiduciary requirements of our Board of Directors. Under the terms of the Merger Agreement, we may be required to pay Prosperity a termination fee of $78 million if the Merger Agreement is terminated under specific circumstances described in the Merger Agreement, including, but not limited to, a termination of the Merger Agreement by Prosperity in response to a “Stellar Adverse Recommendation Change” (as defined in the Merger Agreement) of our Board of Directors. If the Merger Agreement is terminated under such circumstances, the termination fee we may be required to pay under the Merger Agreement may require us to use available cash that would have otherwise been available for general corporate purposes and other uses. For these and other reasons, termination of the Merger Agreement could materially and adversely affect our business operations and financial condition, which in turn could materially and adversely affect the price of our common stock.
These provisions might discourage an otherwise-interested third-party from considering or proposing an acquisition of the Company, even one that may be deemed of greater value to our stockholders than the Merger. Furthermore, even if a third-party elects to propose an acquisition, the termination fee may result in that third party offering a lower value to our stockholders than such third party might otherwise have offered.
A lawsuit may be filed against us and/or Prosperity challenging the transactions contemplated by the Merger Agreement. An adverse ruling in any such lawsuit may delay or prevent the Merger from being completed.
Lawsuits arising out of or relating to the Merger Agreement and/or the proposed acquisition of us by Prosperity may be filed in the future. There can be no assurances that we will be successful in the outcome of any lawsuits challenging the Merger. One of the conditions to completion of the Merger is the absence of any applicable injunction or other order being in effect that prohibits completion of the Merger or the Bank Merger. Accordingly, if a plaintiff is successful in obtaining an injunction, then such order may prevent the Merger from being completed, or from being completed within the expected timeframe. Lawsuits challenging the Merger could divert to some extent our management’s and certain of our employee’s attention from our day-to-day operations. We may also incur costs in connection with the defense or settlement of any litigation, including costs associated with the indemnification of our
18

directors and officers and settlement payments. For these and other reasons, litigation related to the Merger Agreement could materially and adversely affect our business operations and financial condition, which in turn could materially and adversely affect the price of our common stock.
We have incurred, and will continue to incur, direct and indirect costs as a result of the pending transaction with Prosperity.
We have incurred, and will continue to incur, significant costs and expenses, including fees for professional services and other transaction costs, in connection with the pending Merger. We must pay substantially all of these costs and expenses whether or not the Merger is completed. There are a number of factors beyond our control that could affect the total amount or the timing of these costs and expenses.
Risks Related to Business and Operations
External and Market Related Risks
Negative developments affecting the banking industry, “contagion effects,” and resulting media coverage, have eroded customer confidence in the banking system.
Any future bank failures or similar events adversely affecting the banking industry may negatively impact customer confidence in the safety and soundness of regional banks and may generate market volatility among publicly traded bank holding companies and, in particular, regional banks like the Company. As a result, customers may choose to maintain deposits with larger financial institutions or invest in higher yielding short-term fixed income securities, all of which could materially adversely impact the Company’s liquidity, loan funding capacity, net interest margin, capital and results of operations. While the Department of the Treasury, the Federal Reserve, and the FDIC historically have taken action to ensure that depositors of failed banks had access to their deposits, including uninsured deposit accounts, there is no guarantee that regional bank failures or bank runs will not occur in the future and, if they were to occur, they may have a material and adverse impact on customer and investor confidence in regional banks negatively impacting the Company’s liquidity, capital, results of operations and stock price.
Challenging market conditions and economic trends have adversely affected the banking industry.
We operate in the challenging and uncertain financial services industry. The success of our business and operations is sensitive to general business and economic conditions in the U.S., our industry and our market. If the U.S. economy weakens, enters a recession or there is a lack of growth in population, income levels, deposits and business investment in our market, our growth and profitability from our lending, deposit and asset management services could be constrained or negatively impacted. Financial institutions continue to be affected by volatility in the real estate market in some parts of the country and uncertain regulatory and interest rate conditions.
Uncertain market and economic conditions can make our ability to assess the creditworthiness of customers and estimate the losses in our loan portfolio more complex. Another national economic recession or continued deterioration of conditions in our market could drive losses beyond that which is provided for in our allowance for credit losses and result in the following consequences, any of which could have a material adverse effect on our business: (1) loan delinquencies may rise, (2) nonperforming assets and foreclosures may increase, (3) demand for our products and services may decline and (4) collateral securing our loans, especially real estate, may decline in value, which could reduce customers’ borrowing power and repayment ability.
The future effects of economic activity could negatively affect the collateral values associated with our existing loans, our ability to liquidate the real estate collateral securing our residential and commercial real estate loans, our ability to maintain loan origination volume and to obtain additional financing, the future demand for or profitability of our lending and services and the financial condition and credit risk of our customers. Further, in the event of delinquencies, regulatory changes and policies designed to protect borrowers may slow or prevent us from making our business decisions or may result in a delay in our taking certain remediation actions, such as foreclosure. In addition, we have unfunded commitments to extend credit to customers. During challenging economic environments, our customers are more dependent on our credit commitment, and increased borrowings under these commitments could adversely impact our liquidity.
19

Inflationary pressures and rising prices may affect our results of operations and financial condition.
Continued inflationary pressures in 2026 could lead to increased costs for our customers, making it more difficult for them to repay their loans or other obligations, increasing our credit risk. In general, the impact of inflation on the banking industry differs significantly from that of other industries in which a large portion of total resources are invested in fixed assets such as property, plant and equipment. Assets and liabilities of financial institutions are primarily all monetary in nature and therefore are principally impacted by interest rates rather than changing prices. While the general level of inflation underlies most interest rates, interest rates react more to changes in the expected rate of inflation and to changes in monetary and fiscal policy. Sustained high inflation could result in market volatility and higher interest rates.
Sustained higher interest rates by the Federal Reserve may be needed to tame persistent inflationary price pressures, which could depress asset prices and weaken economic activity. A deterioration in economic conditions in the United States and our market could result in an increase in loan delinquencies and non-performing assets, decreases in loan collateral values and a decrease in demand for our products and services, all of which, in turn, would adversely affect our business, financial condition and results of operations.
The Company’s business is concentrated in and largely dependent upon the growth and welfare of its market.
We conduct our operations almost exclusively in the Houston and Beaumont MSAs. A majority of the loans in our loan portfolio were made to borrowers who live and/or conduct business in these MSAs and a majority of our secured loans were secured by collateral located in these MSAs. The Company’s success depends, to a significant extent, upon the economic activity and conditions in its market. Adverse economic conditions that impact the Company’s market could reduce its growth rate, the ability of customers to repay their loans, the value of collateral underlying loans, the Company’s ability to attract deposits and generally impact its business, financial condition, results of operations and future prospects. Due to the Company’s geographic concentration, it may be less able than other larger regional or national financial institutions to diversify the Company’s credit risks.
We face strong competition to attract and retain customers from other companies that offer banking services.
We conduct our operations almost exclusively in the Houston and Beaumont MSAs. Many of our competitors offer the same, or a wider variety of, banking services within our market area. These competitors include banks with nationwide operations, regional banks and other community banks. The Company also faces competition from many other types of financial institutions, including savings banks, credit unions, finance companies, mutual funds, insurance companies, brokerage and investment banking firms, asset-based non-bank lenders, financial technology (“fintech”) competitors and certain other non-financial entities, such as retail stores that may maintain their own credit programs and certain governmental organizations that may offer more favorable financing or deposit terms than the Company can. In addition, a number of out-of-state financial intermediaries have opened production offices, or otherwise solicit deposits, in our market area. The financial services industry could become even more competitive as a result of legislative, regulatory and technological changes and continued consolidation. In particular, the activity of fintech companies has grown significantly over recent years and is expected to continue to grow. Some fintech companies are not subject to the same regulations as we are, which may allow them to be more competitive. Increased competition from fintech companies and the growth of digital banking may also lead to pricing pressures as competitors offer more low-fee and no-fee products. In addition, as customer preferences and expectations continue to evolve, technology has lowered barriers to entry and made it possible for banks to expand their geographic reach by providing services over the internet and for nonbanks to offer products and services traditionally provided by banks, such as automatic transfer and automatic payment systems. Increased competition in our market may result in reduced loans and deposits, as well as reduced net interest margin, fee income and profitability. Ultimately, the Company may not be able to compete successfully against current and future competitors. If we are unable to attract and retain banking customers, we may be unable to continue to grow our loan and deposit portfolios, and our business, financial condition and results of operations could be adversely affected.
The Company could be adversely impacted by geopolitical events, wars, natural disasters, pandemics and other catastrophes.
Acts of terrorism, cyber-terrorism, political unrest, war (including conflicts in Ukraine and the Middle East), civil disturbance, armed regional and international hostilities and international responses to these hostilities, natural disasters, global health risks or pandemics (such as Covid-19) or the threat of or perceived potential for these events could have a negative impact on us. In addition, malfunctions of the electronic grid and other infrastructure breakdowns (such as the grid failures in Texas in February 2021) could adversely affect economic conditions in our market. Our business continuity and disaster recovery plans may not be successful
20

upon the occurrence of one of these scenarios, and a significant catastrophic event could materially adversely affect our operating results.
Unstable global economic conditions may have serious adverse consequences on our business, financial condition, and operations.
The global credit and financial markets have from time-to-time experienced extreme volatility and disruptions, including severely diminished liquidity and credit availability, declines in consumer confidence, declines in economic growth, increases in unemployment rates, high rates of inflation, and uncertainty about economic stability. Changes in trade policies by the United States or other countries, such as tariffs or retaliatory tariffs, may cause inflation which could impact the prices of products sold by our borrowers and have the potential to reduce demand for their products impacting their profitability and making it difficult for our borrowers to repay their loans. The financial markets and the global economy may also be adversely affected by the current or anticipated impact of military conflict, including the conflict between Russia and Ukraine and the conflict in the Middle East. These events have increased and are expected to continue to increase volatility in commodity and energy prices, including oil, and continuing hostilities raise the possibility of supply disruptions. Rising tensions and global instability have the potential to affect consumer confidence in the U.S. and abroad, therefore having a broader effect on financial markets. Changes in trade policies or sanctions imposed by the United States and other countries in response to such conflict could further adversely impact the financial markets and the global economy, and any economic countermeasures by the affected countries or others could exacerbate market and economic instability. Our general business strategy may be adversely affected by any such economic downturn, volatile business environment, hostile third-party action or continued unpredictable and unstable market conditions.
Climate change, and related legislative and regulatory initiatives, have the potential to disrupt our business and adversely impact the operations and creditworthiness of our customers.
Climate change may lead to more frequent and more extreme weather events, such as prolonged droughts or flooding, hurricanes, wildfires and extreme seasonal weather, which could disrupt operations at one or more of our locations and our ability to provide financial products and services to our customers. Such events could also have a negative effect on the financial status and creditworthiness of our customers, which may decrease revenues and business activities from those customers and increase the credit risk associated with loans and other credit exposures to such customers. In addition, weather disasters, shifts in local climates and other disruptions related to climate change may adversely affect the value of real properties securing our loans, which could diminish the value of our loan portfolio. Such events may also cause reductions in regional and local economic activity that may have an adverse effect on our customers, which could limit our ability to raise and invest capital in these areas and communities, each of which could have a material adverse effect on our financial condition and results of operations.
Political and social attention to the issue of climate change has increased. The federal and state legislatures and regulatory agencies have proposed legislative and regulatory initiatives seeking to mitigate the effects of climate change. These agreements and measures may result in the imposition of taxes and fees, the required purchase of emission credits, and the implementation of significant operational changes. In addition, the federal banking agencies may address climate-related issues in their agendas in various ways, including by increasing supervisory expectations with respect to banks’ risk management practices, accounting for the effects of climate change in stress testing scenarios and systemic risk assessments, revising expectations for credit portfolio concentrations based on climate-related factors, and encouraging investment by banks in climate-related initiatives and lending to communities disproportionately impacted by the effects of climate change. We may incur compliance, operating, maintenance and remediation costs.
Significant changes to the size, structure, powers and operations of the federal government may cause economic disruptions that could, in turn, adversely impact our business, results of operations and financial conditions.
The Trump Administration has commenced efforts to implement significant changes to the size and scope of the federal government and reform its operations to achieve stated goals that include reducing the federal budget deficit and national debt, improving the efficiency of government operations, and promoting innovation and economic growth. To date, these efforts have been carried out through a mix of executive actions aimed at eliminating or modifying federal agency and federal program funding, reducing the size of the federal workforce, reducing or altering the scope of activities conducted by, and possibly eliminating, various federal agencies and bureaus, and encouraging the use of artificial intelligence (“AI”) and other advanced technologies within the public and private sectors. These changes, if implemented and taken as a whole, may have varied effects on the economy that are difficult to predict. For instance, the delivery of government services and the distribution of federal program funds and benefits may be disrupted or, in some cases, eliminated as a result of funding cuts or recasting of federal agency mandates. Further, a substantial reduction of the federal workforce could adversely affect regional and local economies, both directly and indirectly, in geographies with significant concentrations of federal employees and contractors. It is possible that such comprehensive changes to the federal
21

government may be materially adverse to the regional and local economies where we conduct business and to our customers, which, in turn, could be materially adverse to our business, financial condition and results of operations.
The Company faces risks related to the adoption of future legislation and potential changes in federal regulatory agency leadership, policies and priorities.
An unpredictable or volatile political environment in the United States, including any social unrest, could negatively impact business and market conditions, economic growth, financial stability, and business, consumer, investor and regulatory sentiments, any one or more of which could have a material adverse impact on our financial condition and results of operations. It is difficult to predict the legislative, executive and regulatory changes that will result from the current Congress and political administration, which may cause broader economic changes due to various changes in the federal government’s approach to regulation and administration. New appointments to the Board of Governors of the Federal Reserve could affect monetary policy and interest rates, which could in turn affect economic growth. Future legislation, regulation and changes in policy, as well as changes in the way in which existing statutes and regulations are interpreted or applied by courts and government agencies, could affect the economic and banking industry, including our business and results of operations, in ways that are difficult to predict.
The CFPB has reshaped the consumer financial laws through rulemaking and enforcement of the prohibitions against unfair, deceptive and abusive business practices. Compliance with such initiatives may impact the business operations of depository institutions offering consumer financial products or services, including the Company.
Notwithstanding ongoing legal, budgetary and structural challenges affecting the CFPB, the CFPB remains an active federal regulatory agency with continuing supervisory and enforcement authority and it has rulemaking authority to administer and carry out the provisions of the Dodd-Frank Act with respect to financial institutions that offer covered financial products and services to consumers. As an independent bureau within the Federal Reserve System, the CFPB may impose requirements more severe than the previous bank regulatory agencies. The CFPB has also been directed to write rules identifying practices or acts that are unfair, deceptive or abusive in connection with any transaction with a consumer for a consumer financial product or service, or the offering of a consumer financial product or service. The CFPB has initiated enforcement actions against a variety of bank and non-bank market participants with respect to a number of consumer financial products and services that have resulted in those participants expending significant time, money and resources to adjust to the initiatives being pursued by the CFPB. CFPB enforcement actions may serve as precedent for how the CFPB interprets and enforces consumer protection laws, including practices or acts that are deemed to be unfair, deceptive or abusive, with respect to all supervised institutions, which may result in the imposition of higher standards of compliance with such laws and increased compliance costs. The extent and timing of any changes relating to the CFPB, including its rule-making, supervisory and enforcement authority, and any resulting impact on our business and financial results cannot be predicted at this time.
Our ability to retain bankers and recruit additional successful bankers is critical to the success of our business strategy and any failure to do so could impair our customer relationships and adversely affect our business and results of operations.
Our ability to retain and grow our loans, deposits and fee income depends upon the business generation capabilities, reputation and the relationship management skills of our bankers. If we were to lose the services of highly productive bankers, including successful bankers employed by an acquired bank, to a competitor or otherwise, the Company may not be able to retain valuable relationships and some of our customers could choose to use the services of a competitor instead of our services.
Our success and growth strategy also depends on our continued ability to attract and retain experienced loan officers and support staff, as well as other management personnel, including our ability to replace our current loan officers, staff and personnel as they age out of the workforce. The Company may face difficulties in recruiting and retaining bankers and other personnel of our desired caliber, including as a result of staffing shortages and competition from other financial institutions. Competition for loan officers and other personnel is strong and the Company may not be successful in attracting or retaining the personnel it requires. In particular, many of our competitors are significantly larger with greater financial resources and may be able to offer more attractive compensation packages and broader career opportunities. Furthermore, our current and potential new personnel may prefer and seek jobs where they can work fully remotely. Additionally, the Company may incur significant expenses and expend significant time and resources on training, integration and business development before it is able to determine whether a new loan officer will be profitable or effective. If we are unable to attract and retain successful loan officers and other personnel, or if our loan officers and other personnel fail to meet our expectations in terms of customer relationships and profitability, we may be unable to execute our business strategy and our business, financial condition, results of operations and growth prospects may be negatively affected.
22

Our results of operations may be adversely affected by labor shortages, turnover and labor cost increases.
Labor costs are a material component of operating our business. A number of factors may adversely affect the labor force available to us or increase labor costs, a shift towards remote work, wage inflation, higher unemployment subsidies, other government regulations and general macroeconomic factors. A sustained labor shortage or increased turnover rates within our employee base could lead to increased costs, such as increased overtime to meet demand and increased wage rates and employee benefits costs to attract and retain employees and could negatively affect our ability to efficiently operate our business. If we are unable to hire and retain employees capable of performing at a high-level, or if mitigation measures, we may take to respond to a decrease in labor availability, such as overtime and third-party outsourcing, have negative effects, our business could be adversely affected. An overall labor shortage, increased turnover or labor inflation could have a material adverse impact on our business, financial condition or operating results.
We are dependent on our executive officers and other key individuals to continue the implementation of our long-term business strategy and the loss of one or more of these key individuals could curtail our growth and adversely affect our business, financial condition, results of operations and prospects.
Our continued success depends in large part upon the skills, experience and continued service of our executive management team and Board of Directors. Our goals, strategies and continued growth are closely tied to the strengths and banking philosophy of our executive management team. Successful implementation of our business strategy is also dependent in part on the continued service of our banking center presidents. The community involvement and diverse and extensive local business relationships and experience in our market of our officers are important to our success. The loss of services of any of these key personnel in the future could have a negative impact on our business because of their skills, years of industry experience and it may be difficult to find qualified replacement personnel who are experienced in the specialized aspects of our business or who have ties to the communities within our market area. Currently, it is generally our policy to utilize employment agreements only in connection with merger or acquisition activities and not to have long-term employment agreements with our officers. While the Company does not anticipate any changes in our executive management team, the unexpected loss of any of these members of management could have a material adverse effect on the Company and our ability to implement our business strategy.
Growth Strategy Risks
Our strategic growth plan could expose the Company to financial, execution and operational risks.
The Company’s growth strategy focuses on organic growth, supplemented by strategic acquisitions. The Company may not be able to generate sufficient new loans and deposits within acceptable risk and expense tolerances, obtain the personnel or funding necessary for additional growth or find suitable acquisition candidates. Various factors, such as economic conditions and competition, may impede or prohibit the growth of the Company’s operations, the opening of new branches and the consummation of additional acquisitions. Further, the Company may be unable to attract and retain experienced bankers, which could adversely affect its growth. The success of the Company’s growth strategy also depends on its ability to effectively manage growth, which is dependent upon a number of factors, including the Company’s ability to adapt its existing credit, operational, technology and governance infrastructure to accommodate expanded operations. If the Company fails to implement one or more aspects of its growth strategy, the Company may be unable to maintain its historical earnings trends, which could adversely affect its business, financial condition and results of operations.
We are subject to risk arising from the failure or circumvention of our controls and procedures. Our internal controls, including fraud detection and controls, disclosure controls and procedures, and corporate governance procedures are based in part on certain assumptions and can provide only reasonable, not absolute, assurances that the objectives of the controls and procedures are met. Any failure or circumvention of our controls and procedures; failure to comply with regulations related to controls and procedures; or failure to comply with our corporate governance procedures could have a material adverse effect on our reputation, business, financial condition and results of operations, including subjecting us to litigation, regulatory fines, penalties or other sanctions. Furthermore, notwithstanding the proliferation of technology and technology-based risk and control systems, our businesses ultimately rely on people as our greatest resource, and we are subject to the risk that they make mistakes or engage in violations of applicable policies, laws, rules or procedures that in the past have not, and in the future may not always be prevented by our technological processes or by our controls and other procedures intended to prevent and detect such errors or violations. Human errors,
23

malfeasance and other misconduct, even if promptly discovered and remediated, can result in reputational damage or legal risk and have a material adverse effect on our business, financial condition and results of operations.
If the goodwill that we have recorded in connection with business acquisitions becomes impaired, it could require charges to earnings.
Goodwill represents the amount by which the cost of an acquisition exceeded the fair value of net assets we acquired in connection with the purchase of another financial institution. The Company reviews goodwill for impairment at least annually, or more frequently if a triggering event occurs which indicates that the carrying value of the asset might be impaired. Various factors, such as the Company’s results of operations, the trading price of the Company’s common stock relative to the book value per share, macroeconomic conditions and conditions in the banking sector, inform whether a triggering event for an interim goodwill impairment test has occurred. The impairment test compares the estimated fair value of each reporting unit with its net book value. If the unit’s fair value is less than its carrying value, an impairment loss is recognized in our results of operations in the periods in which they become known in an amount equal to this excess. A significant amount of judgment is involved in determining if an indicator of impairment has occurred. Such indicators may include, among others: a significant decline in our expected future cash flows; a sustained, significant decline in our stock price and market capitalization; a significant adverse change in legal factors or in the business climate; adverse action or assessment by a regulator; and unanticipated competition.
Future events could cause the Company to conclude that the Company’s goodwill has become impaired, which would result in recording an impairment loss. Any resulting impairment loss could have a material adverse impact on the Company’s financial condition and results of operations. Management will continue evaluating the economic conditions at future reporting periods for triggering events. Although we have not recorded any impairment charges, our future evaluations of goodwill may result in findings of impairment and related write-downs, which may have a material adverse effect on our financial condition and results of operations.
Credit and Lending Risks
As a significant percentage of our loan portfolio is comprised of real estate loans, including commercial real estate and construction, land development and other land loan portfolios, which expose us to credit risks that may be greater than the risks related to other types of loans.
As of December 31, 2025, $5.75 billion, or 78.7%, of our total loans was comprised of loans with real estate as a primary or secondary component of collateral. The real estate collateral provides an alternate source of repayment in the event of default by the borrower and may deteriorate in value over the term of the loan, limiting our ability to realize the full value of the collateral anticipated at the time of the originating loan. A weakening of the real estate market in our primary market area could have an adverse effect on the demand for new loans, the ability of borrowers to repay outstanding loans, the value of real estate and other collateral securing the loans and the value of our business. In addition, the volatility of the real estate market may result in a lower valuation at the time collateral is put on the market for sale. Collateral may have to be sold for less than the outstanding balance of the loan, which could result in losses on such loans. Such declines and losses in real estate values may cause the Company to experience increases in provisions for loan losses and charge-offs, which could adversely affect our profitability.
As of December 31, 2025, $3.77 billion, or 51.6%, of our total loans were comprised of commercial real estate loans and $720.8 million, or 9.9%, of our total loans were comprised of construction, land development and other land loans. Commercial real estate loans generally involve relatively large balances to single borrowers or related groups of borrowers. Repayment of these loans is typically dependent upon income generated, or expected to be generated, by the property securing the loan in amounts sufficient to cover operating expenses and debt service. The availability of such income for repayment may be adversely affected by changes in the economy or local market conditions. These loans expose a lender to greater credit risk than loans secured by other types of collateral because the collateral securing these loans is typically more difficult to liquidate due to the fluctuation of real estate values. Unexpected deterioration in the credit quality of our commercial real estate loan portfolio could require us to increase our allowance for credit losses, which would reduce our profitability.
Real estate construction, land development and other similar land loans involve risks attributable to the fact that loan funds are secured by a project under construction, and the project is of uncertain value prior to our completion. These risks include: (1) the viability of the contractor, (2) the value of the project being subject to successful completion, (3) the contractor’s ability to complete
24

the project, to meet deadlines and time schedules and to stay within our estimates and (4) concentration of such loans with a single contractor and our affiliates.
Real estate construction lending often involves the disbursement of substantial funds with repayment dependent, in part, on the success of the ultimate project rather than the ability of a borrower or guarantor to repay the loan and also presents risks of default in the event of declines in property values or volatility in the real estate market during the construction phase. If we are forced to foreclose on a project prior to completion, we may be unable to recover the entire unpaid portion of the loan. In addition, we may be required to fund additional amounts to complete a project and may have to hold the property for an indeterminate period of time.
A large portion of our loan portfolio is comprised of commercial and industrial loans secured by receivables, inventory, equipment or other commercial collateral.
As of December 31, 2025, $1.48 billion, or 20.2%, of our total loans were comprised of commercial and industrial loans that are typically based on the borrowers’ ability to repay the loans from the cash flow of their businesses. These loans may involve greater risk because the availability of funds to repay each loan depends substantially on the success of the borrower’s business itself and these loans are typically larger in amount, which creates the potential for larger losses on a single loan basis. Commercial and industrial loans are collateralized by general business assets including, among other things, accounts receivable, inventory and equipment and are generally backed by a personal guaranty of the borrower or principal. This collateral may decline in value more rapidly than the Company anticipates, exposing it to increased credit risk. In addition, a portion of our customer base, including customers in the energy and real estate business, may be in industries which are particularly sensitive to commodity prices or market fluctuations, such as energy and real estate prices. Accordingly, negative changes in commodity prices and real estate values and liquidity could impair the value of the collateral securing these loans. Significant adverse changes in the economy or local market conditions in which our commercial lending customers operate could cause rapid declines in loan collectability and the values associated with general business assets resulting in inadequate collateral coverage that may expose the Company to credit losses.
The small- to medium-sized businesses that the Company lends to may have fewer resources to weather adverse business developments, which may impair a borrower’s ability to repay a loan.
We focus our business development and marketing strategy primarily on small- to medium-sized businesses, which we categorize as commercial borrowing relationships of generally less tha n $10 million of exposure. Small- to medium-sized businesses frequently have a smaller market share than their competition, may be more vulnerable to economic downturns, often need substantial additional capital to expand or compete and may experience substantial volatility in operating results, any of which may impair a borrower’s ability to repay a loan. In addition, the success of a small- or medium-sized business often depends on the management skills, talents and efforts of one or two people or a small group of people, and the death, disability or resignation of one or more of these people could have a material adverse impact on the business and its ability to repay our loan. If general economic conditions negatively impact our market and small- to medium-sized businesses are adversely affected, or our borrowers are otherwise affected by adverse business developments, our business, financial condition and results of operations may be negatively affected.
If our allowance for credit losses is not sufficient to cover actual loan losses, our earnings may be affected.
The allowance for credit losses is a valuation allowance for current expected credit losses. We establish our allowance for credit losses and maintain it at a level management considers adequate to absorb expected loan losses in our loan portfolio. The allowance for credit losses represents our estimate of probable losses in the portfolio at each balance sheet date and is based upon relevant information available to us, such as past loan loss experience, the nature and volume of the portfolio, information about specific borrower situations and estimated collateral values, economic conditions and other factors. Loan losses are charged against the allowance when management believes the uncollectibility of a loan balance is confirmed. Subsequent recoveries, if any, are credited back to the allowance. Our allowance for credit losses consists of a general component based upon expected losses in the portfolio and a specific component based on individual loans that are individually evaluated. In determining the collectability of certain loans, management also considers the fair value of any underlying collateral. The amount ultimately realized may differ from the carrying value of these assets because of economic, operating or other conditions beyond our control, and any such differences may be material.
As of December 31, 2025, our allowance for credit losses on loans was $83.6 million, which represented 1.15% of our total loans and 159.15% of our total nonperforming loans as of the same date. Additional loan losses may occur in the future and may occur at a rate greater than the Company has previously experienced. We may be required to take additional provisions for loan losses in the future to further supplement the allowance for credit losses, either due to results of the allowance for credit losses model or as required by our banking regulators. In addition, federal and state bank regulatory agencies periodically review our allowance for credit losses
25

and the value attributed to nonaccrual loans or to real estate acquired through foreclosure. Such regulatory agencies may require the Company to recognize future charge-offs. Their conclusions about the quality of a particular borrower or our entire loan portfolio may be different than ours. Additions to the allowance may be necessary based on changes in economic and real estate market conditions, new information regarding existing loans, identification of additional problem loans, accounting rule changes and other factors, both within and outside of our management’s control. These additions may require increased provision expense.
Our SBA lending program is dependent upon the federal government and a failure to originate SBA loans in compliance with SBA guidelines could result in losses on the guaranteed portion of our SBA loans.
We participate in the SBA Preferred Lenders Program. As an SBA Preferred Lender, we enable our clients to obtain SBA loans without being subject to the potentially lengthy SBA approval process necessary for lenders who are not SBA Preferred Lenders. The SBA periodically reviews the lending operations of participating lenders to assess, among other things, whether the lender exhibits prudent risk management. When weaknesses are identified, the SBA may request corrective actions or impose enforcement actions, including revocation of the lender’s Preferred Lender status. If we lose our status as an SBA Preferred Lender, we may lose some or all of our customers to lenders who are SBA Preferred Lenders, which could adversely affect our business, financial condition and results of operations.
The laws, regulations and standard operating procedures that are applicable to SBA loan products may change in the future. We cannot predict the effects of these changes on our business and profitability. Because government regulation greatly affects the business and financial results of all commercial banks and bank holding companies, including our organization, changes in the laws, regulations and procedures applicable to SBA loans could adversely affect our ability to operate profitably. In addition, the aggregate amount of all SBA 7(a) and 504 loan guarantees by the SBA must be approved each fiscal year by the federal government. We cannot predict the amount of SBA 7(a) loan guarantees in any given fiscal year. If the federal government were to reduce the amount of SBA loan guarantees, such reduction could adversely impact our SBA lending program.
We may suffer losses in our loan portfolio due to inadequate or faulty underwriting and loan collection practices.
There are risks inherent in any loan portfolio, which we attempt to address by adhering to specific underwriting and loan collection practices. Underwriting practices often include analysis of a borrower’s prior credit history; financial statements; tax returns; cash flow projections; valuation of collateral; personal guarantees of loans to businesses; and verification of liquid assets. If the underwriting process fails to capture accurate information or proves to be inadequate, we may incur losses on loans that appeared to meet our underwriting criteria, and those losses may exceed the amounts set aside as reserves in the allowance for credit losses. Loan collection resources may be expanded to meet increases in nonperforming loans resulting from economic downturns or to service any loans acquired, resulting in higher loan administration costs. We are also exposed to the risk of improper documentation of foreclosure proceedings that would also increase the cost of collection.
A protracted government shutdown may result in reduced loan originations and related gains on sales and could negatively affect our financial condition and results of operations.
During any protracted federal government shutdown, we may not be able to close certain loans and we may not be able to recognize non-interest income on the sale of loans. Some of the loans we originate are sold directly to government agencies, and some of these sales may be unable to be consummated during a shutdown. In addition, we believe that some borrowers may decide not to proceed with their home purchase and not close on their loans, which would result in a permanent loss of the related non-interest income. A federal government shutdown could also result in reduced income for government employees or employees of companies that engage in business with the federal government, which could result in greater loan delinquencies, increased in our non-performing, criticized, and classified assets, and a decline in demand for our products and services.
Liquidity Risks
The Company is subject to liquidity risk.
Liquidity risk is the potential that the Company will be unable to meet its obligations as they become due because of an inability to liquidate assets or obtain adequate funding. The Company requires sufficient liquidity to meet customer loan requests, customer deposit maturities and withdrawals, payments on debt obligations as they come due and other cash commitments under both normal operating conditions and unpredictable circumstances, including events causing industry or general financial market stress. The Company relies on its ability to generate deposits and effectively manage the repayment and maturity schedules of loans and securities to ensure that it has adequate liquidity to fund operations. An inability to raise funds through deposits, borrowings, loan repayments, sales of the Company’s securities, sales of loans and other sources could have a negative impact on liquidity.
26

The Company’s most important source of funds is deposits, which have historically been stable sources of funds. However, deposits are subject to fluctuations in availability or price due to factors that may be outside of the Company’s control, including increasing competitive pressure from other financial services firms for consumer or corporate customer deposits, changes in interest rates, returns on other investment classes, systemic risk of the financial system, the actions of regulatory agencies, the reputation of the Company among others. As a result, there could be significant outflows of deposits within short periods of time or significant changes in pricing necessary to maintain current customer deposits or attract additional deposits, increasing funding costs and reducing net interest income and net income. A significant outflow of deposits could force us to sell securities held in our securities portfolio and could result in us recognizing significant losses.
The Company has unfunded commitments to extend credit, which are formal agreements to lend funds to customers as long as there are no violations of any conditions established in the contracts. Unfunded credit commitments are not reflected on the Company’s consolidated balance sheet and are generally not drawn upon. Borrowing needs of customers may exceed the Company’s expectations, especially during a challenging economic environment where clients are more dependent on credit commitments. Increased borrowings under these commitments could adversely impact liquidity.
The Company’s access to funding sources, such as through its line of credit, capital markets offerings, borrowing from the Federal Reserve Bank of Dallas and the Federal Home Loan Bank of Dallas (“FHLB”), or from other third-parties, in amounts adequate to finance or capitalize its activities, or on terms that are acceptable, could be impaired by factors that affect the Company directly or the financial services industry or economy in general, such as disruptions in the financial markets or negative views and expectations about the prospects for the financial services industry. In addition, recently proposed changes to the FHLB system could adversely impact the Company’s access to FHLB borrowings or increase the cost of such borrowings.
If our deposits from governments and municipalities were to significantly decline within a short period of time, this could negatively impact our liquidity and earnings.
As of December 31, 2025, we held $1.22 billion of public deposits from municipalities throughout Texas. These deposits may be more volatile than other deposits. If a significant amount of these deposits were withdrawn within a short period of time, it could have a negative impact on our short-term liquidity and have an adverse impact on our earnings.
We may need to raise additional capital in the future, and such capital may not be available when needed or at all.
We may need to raise additional capital, in the form of additional debt or equity, in the future to have sufficient capital resources and liquidity to meet our commitments and fund our business needs and future growth, particularly if the quality of our assets or earnings were to deteriorate significantly. Our ability to raise additional capital, if needed, will depend on, among other things, conditions in the capital markets at that time, which are outside of our control, and our financial condition. Economic conditions and a loss of confidence in financial institutions may increase our cost of funding and limit access to certain customary sources of capital or make such capital only available on unfavorable terms, including interbank borrowings, repurchase agreements and borrowings from the discount window of the Federal Reserve. We may not be able to obtain capital on acceptable terms or at all. Any occurrence that may limit our access to the capital markets, such as a decline in the confidence of debt purchasers, depositors of our bank or counterparties participating in the capital markets or other disruption in capital markets, may adversely affect our capital costs and our ability to raise capital and, in turn, our liquidity. Further, if we need to raise capital in the future, we may have to do so when many other financial institutions are also seeking to raise capital and would then have to compete with those institutions for investors. An inability to raise additional capital on acceptable terms when needed could have a material adverse effect on our business, financial condition and results of operations.
Interest Rate Risks
The Company is subject to interest rate risk.
Changes in interest rates could have an adverse impact on the Company’s net interest income, business, financial condition and results of operations. Many factors outside the Company’s control impact interest rates, including governmental monetary policies, inflation, deflation, recession, changes in unemployment, the money supply, international disorder, instability in domestic and foreign financial markets and other macroeconomic conditions. A majority of banking assets and liabilities are monetary in nature and subject to risk from changes in interest rates. Like most financial institutions, the Company’s earnings and cash flows are significantly dependent on its net interest income and are subject to “gaps” in the interest rate sensitivities of assets and liabilities that may negatively impact earnings. Changes in interest rates can increase or decrease our net interest income, because different types of assets and liabilities may react differently, and at different times, to market interest rate changes. When interest-bearing liabilities mature or
27

reprice more quickly, or to a greater degree than interest-earning assets in a period, an increase in interest rates could reduce net interest income. Similarly, when interest-earning assets mature or reprice more quickly, or to a greater degree than interest-bearing liabilities, falling interest rates could reduce net interest income. Interest rate increases often result in larger payment requirements for borrowers, including our floating-rate borrowers, which increases the potential for default and delayed payment, and reduces demand for collateral securing the loan. Further, loans in nonaccrual status require continued funding costs, but result in decreased interest income. Interest rate increases may also reduce the demand for loans, decrease loan repayment rates and increase competition for deposits, which could cause an increase in nonperforming assets and charge offs, which could adversely affect our business. Declining interest rates can increase loan prepayments and long‑term fixed rate credits, which could adversely impact earnings and net interest margin if rates increase. If short‑term interest rates remain at low levels for a prolonged period and longer‑term interest rates fall, the Company could experience net interest margin compression as interest‑earning assets would continue to reprice downward while interest-bearing liability rates could fail to decline in tandem. Accordingly, changes in the level of market interest rates affect our net yield on interest-earning assets, loan origination volume and our overall results of operations. Changes in interest rates can also impact the value of loans, securities and other assets.
We could recognize losses on securities held in our securities portfolio, particularly if interest rates increase or economic and market conditions deteriorate.
The Company invests in available for sale securities with the primary objectives of providing a source of liquidity, providing an appropriate return on funds invested, managing interest rate risk, meeting pledging requirements and meeting regulatory capital requirements. As of December 31, 2025, the fair value of our securities portfolio was $2.20 billion, which represented 20.3% of total assets. Factors beyond our control, including interest rate increases, can significantly influence the fair value of securities in our portfolio and can cause potential adverse changes to the fair value of these securities. In order to satisfy liquidity needs, we may be forced to sell securities which would then require us to realize losses. For example, fixed-rate securities are generally subject to decreases in market value when interest rates rise. Additional factors include, but are not limited to, rating agency downgrades of the securities, defaults by the issuer or individual borrowers with respect to the underlying securities and continued instability in the credit markets. Any of the foregoing factors could cause impairment in future periods and result in realized losses. The process for determining impairment usually requires difficult, subjective judgments about the future financial performance of the issuer and any collateral underlying the security in order to assess the probability of receiving all contractual principal and interest payments on the security. Our unrealized losses for our securities portfolio may increase in future periods and we may recognize losses within our securities portfolio.
Risks Related to Cybersecurity, Artificial Intelligence, Third-Parties and Technology
The Company depends on information technology and telecommunications, including third-party service providers.
The Company’s business depends on the successful and uninterrupted functioning of its information technology and telecommunications systems including with third-party servicers and financial intermediaries. The Company relies on third-parties for certain services, including, but not limited to, core systems processing, website hosting, internet services, monitoring its network and other processing services. The failure of these systems, an information security or cybersecurity breach involving any of the Company’s third-party service providers, or the termination or change in terms of a third-party software license or service agreement on which any of these systems is based, could adversely impact the Company’s business, financial condition and results of operations. In addition, the Company’s regulators have issued guidance outlining the expectations for third-party service provider oversight and monitoring by financial institutions. Any failure on the Company’s part to adequately oversee the actions of its third-party service providers could result in regulatory actions against the Bank.
We could be adversely impacted by fraudulent activity, breaches of our information security and cybersecurity attacks.
As a financial institution, we are susceptible to fraudulent activity, information security breaches and cybersecurity-related incidents that may be committed against us, our clients or third-parties with whom we interact and that may result in financial losses or increased costs to us or our clients, disclosure or misuse of confidential information belonging to us or personal or confidential information belonging to our clients or misappropriation of assets and litigation. The occurrence of any of these could lead to litigation, cause reputational harm or cause customers to lose confidence in the Company’s ability to safeguard their information. Our industry has seen increases in electronic fraudulent activity, hacking, security breaches, sophisticated social engineering and cyber-attacks.
Our business is highly dependent on the security and efficacy of our infrastructure, computer and data management systems, as well as those of third parties with whom we interact or on whom we rely. Our business relies on the secure processing, transmission, storage and retrieval of confidential, proprietary and other information in our computer and data management systems and networks and in the computer and data management systems and networks of third parties. In addition, to access our network,
28

products and services, our customers and other third-parties may use personal mobile devices or computing devices that are outside of our network environment and are subject to their own cybersecurity risks. All of these factors increase our risks related to cyber-threats and electronic disruptions.
While we invest in systems and processes that are designed to detect and prevent security breaches and cyber-attacks and we conduct periodic tests of our security systems and processes, we may not succeed in anticipating or adequately protecting against or preventing all security breaches and cyber-attacks from occurring. Even the most advanced internal control environment may be vulnerable to compromise. Targeted social engineering attacks are becoming more sophisticated and are extremely difficult to prevent. Additionally, the existence of cyber-attacks or security breaches at third-parties with access to our data, such as vendors, may not be disclosed to us in a timely manner. As cyber-threats continue to evolve, we may be required to expend significant additional resources to continue to modify or enhance our protective measures or to investigate and remediate any information security vulnerabilities or incidents.
As is the case with non-electronic fraudulent activity, cyber-attacks or other information or security breaches, whether directed at us or third-parties, may result in a material loss or have material consequences. Furthermore, the public perception that a cyber-attack on our systems has been successful, whether or not this perception is correct, may damage our reputation with customers and third parties with whom we do business. A successful penetration or circumvention of system security could cause negative consequences, including loss of customers and business opportunities, disruption to our operations and business, misappropriation or destruction of our confidential information and/or that of our customers, or damage to our customers’ and/or third-parties’ computers or systems, and could expose us to additional regulatory scrutiny and result in a violation of applicable privacy laws and other laws, litigation exposure, regulatory fines, penalties or intervention, loss of confidence in our security measures, reputational damage, reimbursement or other compensatory costs, additional compliance costs.
We have a continuing need for technological change, and we may not have the resources to effectively implement new technology, or we may experience operational challenges when implementing new technology.
The financial services industry is changing rapidly, and to remain competitive, we continue to enhance and improve the functionality and features of our products, services and technologies. In addition to better serving our customers, the effective use of technology increases efficiency and enables financial institutions to reduce costs. Our future success will depend, at least in part, upon our ability to respond to future technological changes and the ability to address the needs of our customers. We address the needs of our customers by using technology to provide products and services that will satisfy customer demands for convenience as well as to create additional efficiencies in our operations as we continue to grow and expand our products and service offerings. We may experience operational challenges as we implement new products and technology enhancements, such as artificial intelligence, automation and algorithms in our business processes, which could result in unintended consequences due to their limitations or our failure to use them effectively, not fully realizing the anticipated benefits from such new technology or require us to incur significant costs to remedy any such challenges in a timely manner. In addition, complications during a conversion of our core technology platform or implementation or upgrade of any software could negatively impact the experiences or satisfaction of our customers, which could cause those customers to terminate their relationship with us or reduce the amount of business that they do with us, either of which could adversely affect our business, financial condition or results of operations.
Third-parties upon which we rely for our technology needs may not be able to develop on a cost-effective basis systems that will enable us to keep pace with such developments. As a result, our competitors may be able to offer additional or superior products compared to those that we will be able to provide, which would put us at a competitive disadvantage. We may lose customers seeking new technology-driven products and services to the extent we are unable to provide such products and services.
The development and use of AI presents risks and challenges that may adversely impact the Company’s business.
The Company or its third-party (or fourth-party) vendors, clients or counterparties may develop or incorporate AI technology in certain business processes, services, or products. The development and use of AI presents a number of risks and challenges to the Company’s business. The legal and regulatory environment relating to AI is uncertain and rapidly evolving, both in the U.S. and internationally, and includes regulatory schemes targeted specifically at AI as well as provisions in intellectual property, privacy, consumer protection, employment, and other laws applicable to the use of AI. These evolving laws and regulations could require changes in the Company’s implementation of AI technology and increase the Company’s compliance costs and risk of non-compliance. AI models, particularly generative AI models, may produce output or take actions that is incorrect, that reflects biases included in the data on which they are trained, that results in the release of private, confidential, or proprietary information, that infringes on the intellectual property rights of others, or that is otherwise harmful. In addition, the complexity of many AI models makes it difficult to understand why they are generating particular opinions. This limited transparency increases the challenges associated with assessing the proper operation of AI models, understanding, monitoring the capabilities of the AI models, reducing
29

erroneous output, eliminating bias, and complying with regulations that require documentation or explanation of the basis on which decisions are made. Further, the Company may rely on AI models developed by third-parties, and, to that extent, would be dependent in part on the manner in which those third parties develop and train their models, including risks arising from the inclusion of any unauthorized material in the training data for their models and the effectiveness of the steps these third-parties have taken to limit the risks associated with the output of their models, matters over which the Company may have limited visibility. Any of these risks could expose the Company to liability or adverse legal or regulatory consequences and harm the Company’s reputation and the public perception of its business or the effectiveness of its security measures.
Risks Related to Legal, Reputational and Compliance Matters
The Company is subject to laws regarding the privacy, information security and protection of personal information.
Our business requires the collection and retention of large volumes of customer data, including personally identifiable information in various information systems that we maintain and in those maintained by third-parties with whom we contract to provide data services. We also maintain important internal company data such as personally identifiable information about our employees and information relating to our operations. We are subject to complex and evolving laws and regulations governing the privacy and protection of personal information of individuals (including customers, employees, suppliers and other third-parties). Various state and federal banking regulators and states have also enacted data security breach notification requirements with varying levels of individual, consumer, regulatory or law enforcement notification in certain circumstances in the event of a security breach. Ensuring that our collection, use, transfer and storage of personal information complies with all applicable laws and regulations can increase our costs.
Furthermore, we may not be able to ensure that all of our clients, suppliers, counterparties and other third parties have appropriate controls in place to protect the confidentiality of the information that they exchange with us, particularly where such information is transmitted by electronic means. If personal, confidential or proprietary information of customers or others were to be mishandled or misused (in situations where, for example, such information was erroneously provided to parties who are not permitted to have the information, or where such information was intercepted or otherwise compromised by third-parties), we could be exposed to litigation or regulatory sanctions under personal information laws and regulations. Concerns regarding the effectiveness of our measures to safeguard personal information, or even the perception that such measures are inadequate, could cause us to lose customers or potential customers for our products and services and thereby reduce our revenues. Accordingly, any failure or perceived failure to comply with applicable privacy or data protection laws and regulations may subject us to inquiries, examinations and investigations that could result in requirements to modify or cease certain operations or practices or in significant liabilities, fines or penalties, and could damage our reputation and otherwise adversely affect our operations and financial condition.
The Company could be adversely impacted by employee errors and customer or employee fraud.
As a financial institution, employee errors and employee or customer misconduct could cause financial losses or regulatory sanctions and seriously harm the Company’s reputation. Misconduct by employees could include hiding unauthorized activities, improper or unauthorized activities on behalf of customers or improper use of confidential information, each of which can be damaging to the Company. It is not always possible to prevent employee errors and misconduct and the precautions taken to prevent and detect this activity may not be effective in all cases. Employee errors could also subject the Company to financial claims for negligence.
The Company maintains a system of internal controls to mitigate operational risks, including data processing system failures and errors and customer or employee fraud, as well as insurance coverage designed to protect it from material losses associated with these risks, including losses resulting from any associated business interruption. If these internal controls fail to prevent or detect an occurrence, or if any resulting loss is not insured or exceeds applicable insurance limits, it could adversely impact the Company’s business, financial condition and results of operations.
The Company depends on the accuracy and completeness of information provided by its borrowers and counterparties.
In deciding whether to approve loans or to enter into other transactions with borrowers and counterparties, the Company relies on information furnished by, or on behalf of, borrowers and counterparties, including financial statements, credit reports, audit reports, other financial information and representations as to accuracy and completeness of that information. Any intentional or negligent misrepresentation, if undetected prior to loan funding, may significantly lower the value of the loan, and the Company may be subject to regulatory action. The Company generally bears the risk of loss associated with these misrepresentations. The Company’s controls and processes may not detect misrepresented information. Any such misrepresented information could adversely impact the Company’s business, financial condition and results of operations.
30

The Company may be subject to environmental liabilities in connection with the properties we own and the foreclosure of real estate assets securing our loan portfolio.
In the course of our business, we may acquire real estate in connection with our growth efforts, or we may foreclose on and take title to real estate or otherwise be deemed to be in control of property that serves as collateral on loans we make. As a result, we could be subject to environmental liabilities with respect to those properties. We may be held liable to a governmental entity or to third-parties for property damage, personal injury, investigation and clean-up costs incurred by these parties in connection with environmental contamination, or we may be required to investigate or clean up hazardous or toxic substances or chemical releases at a property. The costs associated with investigation or remediation activities could be substantial. In addition, if we are the owner or former owner of a contaminated site, we may be subject to common law claims by third-parties based on damages and costs resulting from environmental contamination emanating from the property.
The cost of removal or abatement may substantially exceed the value of the affected properties or the loans secured by those properties; we may not have adequate remedies against the prior owners or other responsible parties; and we may not be able to resell the affected properties either before or after completion of any such removal or abatement procedures. Furthermore, the value of the property as collateral will generally be substantially reduced, or we may elect not to foreclose on the property and, as a result, we may suffer a loss upon collection of the loan. Any significant environmental liabilities could have a material adverse effect on our business, financial condition and results of operations.
The Company is subject to claims and litigation pertaining to intellectual property in addition to other litigation in the ordinary course of business.
Banking and other financial services companies, such as the Company, rely on technology companies to provide information technology products and services necessary to support their day‑to‑day operations. Technology companies frequently enter litigation based on allegations of patent infringement or other violations of intellectual property rights. The Company also uses trademarks and logos for marketing purposes, and third parties may allege that the Company’s marketing, processes or systems may infringe their intellectual property rights. Competitors of the Company’s vendors, or other individuals or companies, may from time to time claim to hold intellectual property sold to the Company. Such claims may increase in the future as the financial services sector becomes more reliant on information technology vendors. The plaintiffs in these actions frequently seek injunctions and substantial damages. Regardless of the scope or validity of such patents or other intellectual property rights, or the merits of any claims by potential or actual litigants, the Company may have to engage in protracted litigation that can be expensive, time‑consuming, and disruptive to operations and distracting to management.
In addition to litigation relating to intellectual property, the Company is regularly involved in litigation matters in the ordinary course of business. While the Company believes that these litigation matters should not have a material adverse impact on its business, financial condition, results of operations or future prospects, it may be unable to successfully defend or resolve any current or future litigation matters.
We are subject to heightened regulatory requirements as our total assets exceed $10 billion.
The Dodd-Frank Act and its implementing regulations impose various additional requirements on banks and bank holding companies with $10 billion or more in total assets, including a more frequent and enhanced regulatory examination regime. In addition, banks with $10 billion or more in total assets (including our bank) are primarily examined by the CFPB with respect to various federal consumer financial protection laws and regulations, with the Federal Reserve maintaining supervision over some consumer related regulations. In light of evolving priorities among government and agency leaders, there is some uncertainty as to how the CFPB examination and regulatory authority might impact our business in the near and medium term.
Negative public opinion regarding the Company or its failure to maintain the Company’s or the Bank’s reputation in the communities served could adversely impact business.
As a community bank, the Company’s reputation within the communities served is critical to its success. The Company believes it has set itself apart from competitors by building strong personal and professional relationships with its customers and by being an active member of the communities it serves. The Company strives to enhance its reputation by recruiting, hiring and retaining employees who share the Company’s core values of being an integral part of the communities it serves and delivering superior service to customers. Negative public opinion could result from the Company’s actual or alleged conduct in any number of activities, including (1) lending practices, (2) expansion strategy, (3) product and service offerings, (4) corporate governance, (5) regulatory compliance, (6) mergers and acquisitions, (7) disclosure, (8) sharing or inadequate protection of customer information, (9) successful or attempted cyber-attacks against the Company, its customers or its third-party partners or vendors and (10) failure to discharge any publicly announced commitments to employees or environmental, social and governance initiatives or to respond adequately to social
31

and sustainability concerns from the viewpoint of its stakeholders from actions taken by government regulators and community organizations in response to the Company’s conduct. If the Company’s reputation is negatively affected by the actions of its employees or otherwise, the Company may be less successful in attracting new talent and customers or may lose existing customers. Further, negative public opinion can expose the Company to litigation and regulatory action and could delay and impede efforts to implement its expansion strategy.
Risks Related to Regulation of the Company’s Industry
The Company operates in a highly regulated environment.
As a bank holding company, we are subject to extensive examination, supervision and comprehensive regulation by various federal and state agencies that govern almost all aspects of our operations. These laws and regulations are not intended to protect our shareholders. Rather, these laws and regulations are intended to protect customers, depositors, the FDIC's Deposit Insurance Fund and the overall financial stability of the U.S. These laws and regulations, among other matters, prescribe minimum capital requirements, impose limitations on the business activities in which the Company can engage, limit the dividend or distributions that the Bank can pay to the Company, restrict the ability of institutions to guarantee our debt and impose certain specific accounting requirements on the Company that may be more restrictive and may result in greater or earlier charges to earnings or reductions in our capital than GAAP would require. Compliance with these laws and regulations is difficult and costly, and changes to these laws and regulations often impose additional compliance costs. Our failure to comply with these laws and regulations, even if the failure follows good faith efforts to comply or reflects a difference in interpretation, could subject the Company to restrictions on our business activities, fines and other penalties, any of which could adversely affect our results of operations, capital base and the price of our securities. Further, any new laws, rules or regulations could make compliance more difficult or expensive.
We are unable to predict what, if any, changes to the regulatory environment may be enacted by Congress, or the current and next presidential administration and what the impact of any such changes will be on our results of operations or financial condition, including increased expenses or changes in the demand for our services or our ability to engage in transactions to expand our business, or on the U.S. domestic or global economies or financial markets.
Moreover, the current presidential administration has made certain changes in the leadership and senior staff of the federal banking agencies and may make additional changes in the future. Such changes are likely to impact the rulemaking, supervision, examination and enforcement priorities and policies of the agencies. In addition, changes in key personnel at the agencies that regulate such banking organizations, including the federal banking agencies, may result in differing interpretations of existing rules and guidelines and potentially more stringent enforcement and more severe penalties than previously. The potential impact of any changes in agency personnel, policies, priorities and interpretations on the financial services sector, including us, cannot be predicted at this time.
State and federal banking agencies periodically conduct examinations of our business, including compliance with laws and regulations, and our failure to comply with any supervisory actions to which the Company is or becomes subject as a result of such examinations may adversely affect the Company.
Texas and federal banking agencies, including the TDB and the Federal Reserve, periodically conduct examinations of our business, including compliance with laws and regulations. If, as a result of an examination, a Texas or federal banking agency were to determine that the financial condition, capital resources, asset quality, earnings prospects, management, liquidity or other aspects of any of our operations had become unsatisfactory, or that the Company, the Bank or their respective management were in violation of any law or regulation, it may take a number of different remedial actions as it deems appropriate. These actions include the power to enjoin “unsafe or unsound” practices, to require affirmative actions to correct any conditions resulting from any violation or practice, to issue an administrative order that can be judicially enforced, to direct an increase in our and/or the Bank’s capital, to restrict our growth, to assess civil monetary penalties against the Company, the Bank or their respective officers or directors, to remove officers and directors and, if it is concluded that such conditions cannot be corrected or there is an imminent risk of loss to depositors, to terminate the Bank’s deposit insurance. If we become subject to such regulatory actions, our business, financial condition, results of operations, cash flows and reputation may be negatively impacted.
Many of the Company’s new activities and expansion plans may require regulatory approval, and failure to obtain them may restrict our growth.
We intend to continue to grow our business through strategic acquisitions of financial institutions coupled with organic growth. Generally, we must receive state and federal regulatory approval before we can acquire an FDIC-insured depository institution
32

or related business. In determining whether to approve a proposed acquisition, federal banking regulators will consider, among other factors, the effect of the acquisition on competition, our financial condition, liquidity, our future prospects and the impact of the proposal on U.S. financial stability. The regulators also review current and projected capital ratios and levels, the competence, experience and integrity of management and our record of compliance with laws and regulations, the convenience and needs of the communities to be served including the acquiring institution’s record of compliance under the CRA and the effectiveness of the acquiring institution in combating money laundering activities. Such regulatory approvals may not be granted on terms that are acceptable to the Company, or at all, or may be granted only after lengthy delay. We may also be required to sell or, alternatively, commit to retain branches as a condition to receiving regulatory approval, which may not be acceptable to us or, if acceptable to us, may reduce the benefit of any acquisition.
We also plan to continue de novo branching as a part of our organic growth strategy. De novo branching and any acquisitions carry with them numerous risks, including the inability to obtain all required regulatory approvals. The failure to obtain these regulatory approvals for potential future strategic acquisitions and de novo branches may impact our business plans and restrict our growth.
The Company faces a risk of noncompliance and enforcement action with the Bank Secrecy Act and other anti-money laundering statutes and regulations.
The BSA, the Uniting and Strengthening America by Providing Appropriate Tools Required to Intercept and Obstruct Terrorism Act of 2001 and other laws and regulations require financial institutions, among other duties, to institute and maintain an effective anti-money laundering program and file suspicious activity and currency transaction reports as appropriate. The federal Financial Crimes Enforcement Network, established by the U.S. Department of the Treasury (“U.S. Treasury”) to administer the BSA, is authorized to impose significant civil money penalties for violations of those requirements, and engages in coordinated enforcement efforts with the individual federal banking regulators, as well as the U.S. Department of Justice (the “Department of Justice”), Drug Enforcement Administration and Internal Revenue Service.
In order to comply with regulations, guidelines and examination procedures in this area, we have dedicated significant resources to our anti-money laundering program. If our policies, procedures and systems are deemed deficient, we could be subject to liability, including fines and regulatory actions such as restrictions on our ability to pay dividends and the necessity to obtain regulatory approvals to proceed with certain aspects of our business plans, including acquisitions and de novo branching. Failure to maintain and implement adequate programs to combat money laundering and terrorist financing could also have serious reputational consequences for us.
Failure to comply with economic and trade sanctions or with applicable anti‑corruption laws could have a material adverse impact our business, financial condition and results of operations.
The OFAC administers and enforces economic and trade sanctions against targeted foreign countries and regimes, under authority of various laws, including designated foreign countries, nationals and others. We are responsible for, among other things, blocking accounts of and transactions with such persons and countries, prohibiting unlicensed trade and financial transactions with them and reporting blocked transactions after their occurrence. In addition, we are subject to the Foreign Corrupt Practices Act (“FCPA”), which prohibits offering, promising, giving, or authorizing others to give anything of value, either directly or indirectly, to a non‑U.S. government official in order to influence official action or otherwise gain an unfair business advantage. We are also subject to applicable anti‑corruption laws in the jurisdictions in which we may operate. Failure to comply with economic and trade sanctions or with applicable anti‑corruption laws, including the FCPA, could have serious legal and reputational consequences for us.
The Company is subject to numerous federal and state lending laws designed to protect consumers, including the Community Reinvestment Act and fair lending laws, and failure to comply with these laws could lead to material sanctions and penalties.
The CRA, the Equal Credit Opportunity Act, the Fair Housing Act and other fair lending laws and regulations impose nondiscriminatory lending requirements on financial institutions. The Consumer Financial Protection Bureau, the Department of Justice and other federal and state agencies are responsible for enforcing these laws and regulations. A successful challenge to an institution’s performance under the CRA or fair lending laws and regulations could result in a wide variety of sanctions, including the required payment of damages and civil money penalties, injunctive relief, imposition of restrictions on mergers and acquisitions activity and restrictions on expansion activity. Private parties may also have the ability to challenge an institution’s performance under fair lending laws in private class action litigation.
33

Increases in FDIC deposit insurance premiums could adversely affect our earnings.
We are generally unable to control the amount of premiums that we are required to pay for FDIC insurance. If there are financial institution failures that affect the Deposit Insurance Fund, we may be required to pay FDIC premiums higher than current levels. Future additional assessments, increases or required prepayments in FDIC insurance premiums may materially adversely affect our business, financial condition and results of operations. These increased premiums would have an adverse effect on our net income and results of operations.
The Federal Reserve may require the Company to commit capital resources to support the Bank.
A bank holding company is required to act as a source of financial and managerial strength to its subsidiary banks and to commit resources to support its subsidiary banks. The Federal Reserve may require a bank holding company to make capital injections into a troubled subsidiary bank and may charge the bank holding company with engaging in unsafe and unsound practices for failure to commit resources to such a subsidiary bank. Under these requirements, in the future, the Company could be required to provide financial assistance to the Bank if it experiences financial distress.
A capital injection may be required at times when our resources are limited and we may be required to borrow the funds to make the required capital injection. In the event of a bank holding company’s bankruptcy, the bankruptcy trustee will assume any commitment by the holding company to a federal bank regulatory agency to maintain the capital of a subsidiary bank. Moreover, bankruptcy law provides that claims based on any such commitment will be entitled to a priority of payment over the claims of the holding company’s general unsecured creditors, including the holders of any note obligations. Thus, any borrowing that must be done by the holding company in order to make the required capital injection becomes more difficult and expensive and will adversely impact the holding company’s business, financial condition and results of operations.
We may be materially and adversely affected by the soundness, creditworthiness and liquidity of other financial institutions.
Financial services institutions are interrelated as a result of trading, clearing, counterparty or other relationships. We have exposure to many different industries and counterparties, and routinely execute transactions with counterparties in the financial services industry, including commercial banks, brokers and dealers, investment banks and other institutional customers. Many of these transactions expose us to credit risk in the event of a default by a counterparty or customer. In addition, our credit risk may be exacerbated when the collateral held by us cannot be realized upon or is liquidated at prices not sufficient to recover the full amount of the credit or derivative exposure due to us. Any such losses could have a material adverse effect on our business, financial condition and results of operations.
The Company could be adversely impacted by monetary policies and regulations of the Federal Reserve.
In addition to being affected by general economic conditions, our earnings and growth are affected by the policies of the Federal Reserve. An important function of the Federal Reserve is to regulate the U.S. money supply and credit conditions. Among the instruments used by the Federal Reserve to implement these objectives are open market operations in U.S. government securities, adjustments of both the discount rate and the federal funds rate and changes in reserve requirements against bank deposits. These instruments are used in varying combinations to influence overall economic growth and the distribution of credit, bank loans, investments and deposits. Their use also affects interest rates charged on loans or paid on deposits. The monetary policies and regulations of the Federal Reserve have had a significant effect on the operating results of commercial banks in the past and are expected to continue to do so in the future. Although we cannot determine the effects of such policies on us at this time, such policies could have a material adverse effect on our business, financial condition and results of operations.
The Company has made loans to and accepted deposits from related parties.
From time to time, the Bank has made loans to and accepted deposits from certain of the Company’s directors and officers and the directors and officers of the Bank in compliance with applicable regulations and the Company’s written policies. The Company’s business relationships with related parties are highly regulated. In particular, the Company’s ability to do business with related parties is limited with respect to, among other things, extensions of credit described in the Federal Reserve’s Regulation O and covered transactions described in sections 23A and 23B of the Federal Reserve Act and the Federal Reserve’s Regulation W. If the Company fails to comply with any of these regulations, it could be subject to enforcement and other legal actions by the Federal Reserve.
34

Risks Related to the Company’s Common Stock
The market price of Company’s common stock may be volatile and fluctuate significantly, which could cause the value of an investment in the Company's common stock to decline.
The market price of the Company’s common stock could fluctuate substantially due to a variety of factors, many of which are beyond our control, including, but not limited to:
•general economic conditions and overall market fluctuations;
•actual or anticipated fluctuations in our quarterly or annual financial results;
•operating and stock price performance of other companies that investors deem comparable to ours;
•market perception of our ability to manage growth projections and expectations and to complete the Merger with Prosperity;
•the perception that investment in Texas is unattractive or less attractive during periods of low or unstable oil prices;
•publication of research reports about the Company, its competitors, or the financial services industry generally, or changes in, or failure to meet, securities analysts’ estimates of the Company’s financial and operating performance, or lack of research reports by industry analysts or ceasing of coverage;
•other news, announcements or disclosures (whether by the Company or others) related to the Company, its competitors, its market or the financial services industry or the trading volume of the Company’s common stock;
•c hanges in dividends and capital returns;
•changes in governmental trade, monetary policies and fiscal policies, including the interest rate policies of the Federal Reserve;
•changes in economic, competitive, regulatory conditions and technical factors or other developments affecting participants in our industry, and publicity regarding our business or any of our significant customers or competitors;
•significant acquisitions or business combinations, strategic partnerships, joint ventures or capital commitments by or involving the Company or the Company’s competitors; and
•additional or anticipated sales of the Company’s common stock or other securities by the Company or existing shareholders.
Additionally, the realization of any of the risks described in this “Risk Factors” section could have a material adverse effect on the market price of the Company’s common stock and cause the value of an investment in the Company’s common stock to decline. Furthermore, the stock market has experienced substantial fluctuations, which in many cases have been unrelated to the operating performance and prospects of particular companies. These types of broad market fluctuations may adversely affect investor confidence and could affect the trading price of the Company’s common stock over the short, medium or long term, regardless of our actual performance.
The holders of the Company’s debt obligations have priority over its common stock with respect to payment in the event of liquidation, dissolution or winding up and with respect to the payment of interest.
In the event of any liquidation, dissolution or winding up of the Company, its common stock would rank below all claims of debt holders against the Company. The Company’s debt obligations are senior to its shares of common stock. As a result, the Company must make payments on its debt obligations before any dividends can be paid on its common stock. In the event of bankruptcy, dissolution or liquidation, the holders of the Company’s debt obligations must be satisfied before any distributions can be made to the holders of the Company’s common stock. To the extent that the Company issues additional debt obligations, they will be of equal rank with, or senior to, the Company’s existing debt obligations and senior to shares of the Company’s common stock.
Future sales and issuances of the Company’s common stock or rights to purchase common stock could result in additional dilution of the percentage ownership of its shareholders.
The Company may issue additional securities in the future and from time to time, including as consideration in future acquisitions or under compensation or incentive plans. Future sales and issuances of the Company’s common stock or rights to purchase its common stock could result in substantial dilution to the Company’s existing shareholders. New investors in such subsequent transactions could gain rights, preferences and privileges senior to those of holders of the Company’s common stock. The
35

Company may grant registration rights covering shares of its common stock or other securities in connection with acquisitions and investments.
The Company may issue shares of preferred stock in the future, which could make it difficult for another company to acquire it or could otherwise adversely affect the rights of the holders of the Company’s common stock, which could depress the price of the Company’s common stock.
The Company’s second amended and restated certificate of formation authorizes it to issue up to 10,000,000 shares of one or more series of preferred stock. The Company’s Board of Directors, in its sole discretion, has the authority to determine the preferences, limitations and relative rights of shares of preferred stock and to fix the number of shares constituting any series, the designation of such series and the dividend rate for each series, without any further vote or action by the Company’s shareholders. The Company’s preferred stock may be issued with voting, liquidation, dividend and other rights superior to the rights of the Company’s common stock. The potential issuance of preferred stock may delay or prevent a change in control of the Company, discouraging bids for the Company’s common stock at a premium over the market price, and materially adversely affect the market price and the voting and other rights of the holders of the Company’s common stock.
The Company is dependent upon the Bank for cash flow, and the Bank's ability to make cash distributions is restricted, which could impact the Company's ability to satisfy its obligations.
There can be no assurance of whether or when we may pay dividends on our common stock in the future. Our ability to pay dividends is dependent on the Bank’s ability to pay dividends to it, which is limited by applicable laws and banking regulations. These statutes and regulations require, among other things, that the Bank maintain certain levels of capital in order to pay a dividend. Further, federal and state banking authorities have the ability to restrict the Bank’s payment of dividends through supervisory action. Payments of future dividends, if any, will be declared and paid at the discretion of our Board of Directors after taking into account our business, operating results and financial condition, current and anticipated cash needs, plan for expansion and any legal or contractual limitations on our ability to pay dividends. In addition, the Company’s existing credit agreement restricts our ability to pay dividends.
The Company’s corporate governance documents and certain corporate and banking provisions of Texas law applicable to it could have an anti-takeover effect and may delay, make more difficult or prevent an attempted acquisition and other actions.
The Company’s second amended and restated certificate of formation and bylaws contain certain provisions that may have an anti-takeover effect and may delay, discourage or prevent an attempted acquisition or change of control. These provisions include: (1) staggered terms for directors, who may be removed from office only for cause, (2) a provision establishing certain advance notice procedures for nomination of candidates for election as directors and for shareholder proposals and (3) a provision that any special meeting of the Company’s shareholders may be called only by a majority of the Board of Directors, the Chairman of the Board of Directors or a holder or group of holders of at least 50% of the Company’s shares entitled to vote at the meeting.
The Company’s second amended and restated certificate of formation does not provide for cumulative voting for directors and authorizes the Board of Directors to issue shares of preferred stock without shareholder approval and upon such terms as the Board of Directors may determine. The issuance of the Company’s preferred stock, while providing desirable flexibility in connection with possible acquisitions, financings and other corporate purposes, could have the effect of making it more difficult for a third-party to acquire, or of discouraging a third-party from acquiring, a controlling interest. In addition, certain provisions of Texas law, including a provision that restricts certain business combinations between a Texas corporation and certain affiliated shareholders, may delay, discourage or prevent an attempted acquisition or change in control.
In addition, banking laws impose notice, approval and ongoing regulatory requirements on any shareholder or other party that seeks to acquire direct or indirect “control” of an FDIC-insured depository institution. These laws include the Bank Holding Company Act and the Change in Bank Control Act. These laws could delay or prevent an acquisition.
The Company’s bylaws include an exclusive forum provision, which could limit a shareholder’s ability to obtain a favorable judicial forum for disputes with the Company or its directors, officers or other employees.
The Company’s bylaws provide that unless the Company consents in writing to the selection of an alternative forum for the following purposes, any state or federal court located in Harris County in the State of Texas (the county in which Houston, Texas is located) shall be the sole and exclusive forum for (1) any actual or purported derivative action or proceeding brought on behalf of the Company, (2) any action asserting a claim of breach of a fiduciary duty owed by any current or former director, officer, or other employee or agent of the Company to the Company or the Company’s shareholders or creditors, including a claim alleging the aiding
36

and abetting of such a breach of fiduciary duty, (3) any action asserting a claim against the Company or any current or former director, officer, or other employee or agent of the Company arising pursuant to any provision of the Texas Business Organization Code (“TBOC”), the certificate of formation, or the bylaws of the Company (as any of the foregoing may be amended from time to time), or (4) any action asserting a claim against the Company or any current or former director, officer, or other employee or agent of the Company as governed by the internal affairs doctrine, including any action to interpret, apply, enforce or determine the validity of any provision of the TBOC, the certificate of formation, or the bylaws of the Company (as any of the foregoing may be amended from time to time).
Section 27 of the Exchange Act creates exclusive federal jurisdiction over all suits brought to enforce any duty or liability created by the Exchange Act or the rules and regulations thereunder, and the exclusive forum provision with respect to state courts of the Company’s bylaws will not apply to suits brought to enforce a duty or liability created by the Exchange Act or any other claim for which the federal courts have exclusive jurisdiction. Section 22 of the Securities Act creates concurrent jurisdiction for federal and state courts over all suits brought to enforce any duty or liability created by the Securities Act or the rules and regulations thereunder. Accordingly, there is uncertainty as to whether a court would enforce such an exclusive forum provision as written in connection with claims arising under the Securities Act, and the Company’s shareholders will not be deemed to have waived the Company’s compliance with the federal securities laws and the rules and regulations thereunder. Any person or entity purchasing or otherwise acquiring any interest in any security of the Company shall be deemed to have notice of and consented to the exclusive forum provision of the Company’s bylaws.
The exclusive forum provision in the Company’s bylaws may limit the Company’s shareholders’ ability to obtain a favorable judicial forum for disputes with us. In addition, shareholders who do bring a claim in a Harris County court could face additional litigation costs in pursuing any such claim, particularly if they do not reside in or near Harris County, Texas. Furthermore, if a court were to find the exclusive forum provision contained in the Company’s bylaws to be inapplicable or unenforceable in an action, the Company may incur additional costs associated with resolving such action in other jurisdictions, which could adversely affect its business, operating results and financial condition.
ITEM 1B. UNRESOLVED STAFF COMMENTS
None.
ITEM 1C. CYBERSECURITY
Risk Management and Strategy
The Company’s risk management program is designed to identify, assess, and mitigate risks across various areas and functions, including financial, operational, technological, regulatory, reputational, and legal. Cybersecurity is a critical component of the enterprise risk management program, given the increasing reliance on technology and potential of cyber threats. The Company’s information security program is designed to protect the confidentiality, integrity, and availability of its computer systems, networks, software and information assets, including customer, and other sensitive data.
The structure of the Company’s information security program is designed around regulatory guidance, industry leading risk frameworks and other industry standards. In addition, the Company leverages certain industry and government associations, third-party benchmarking, audits, and threat intelligence sources to facilitate and promote program effectiveness. The Chief lnformation Security Officer (“CISO”), who reports directly to the Chief Risk Officer (“CRO”), and the Chief lnformation Officer (“CIO”), along with key members of their teams, regularly collaborate with peer banks and industry groups to discuss cybersecurity trends, issues, and best practices. The information security program is periodically reviewed with the goal of addressing changing threats and conditions.
The Company employs an in-depth, layered, defensive strategy that embraces a “secure by design” philosophy when designing new products, services, and technology. The Company leverages people, processes, and technology as part of its efforts to manage and maintain cybersecurity controls. The Company employs a variety of solutions and processes designed to prevent, detect, and respond to suspicious activity. The Company also actively monitors its email gateways for malicious phishing email campaigns and monitors remote connections as a portion of its workforce has the option to work remotely.
The Company has established processes and systems designed to mitigate cyber risk, including regular and on-going education and training for employees, preparedness simulations and tabletop exercises, and recovery and resilience tests. It engages in regular assessments of its infrastructure, software systems, and network architecture, using internal cybersecurity experts, and third-party specialists. The Company also maintains a third-party risk management program designed to identify, assess, and manage risks, including cybersecurity risks, associated with external service providers and its supply chain. The Company leverages internal and
37

external auditors and independent external partners to periodically review its processes, systems, and controls, including with respect to its information security program, to assess the design and operating effectiveness of the control environment and make recommendations to strengthen its risk management program.
The Company maintains a Cybersecurity Incident Response Policy (“CSIRP”) and related checklists that provide a documented framework for responding to actual or potential cybersecurity incidents, including timely escalation of incidents to the Cybersecurity Response Team and notification to the appropriate regulatory and governmental authorities. As needed, the notification may include senior management and/or the Company’s and Bank’s Board of Directors. The CSIRP and related checklists are coordinated through the CISO, CRO, and key members of management, including but not limited to representatives from the information security, information technology and legal teams that are embedded into the Cybersecurity Response Team. The CSIRP facilitates coordination across multiple parts of the organization and is evaluated at least annually.
During the fiscal year of this Report, the Company has not experienced a cybersecurity incident that has materially impacted its business strategy, results of operations, or financial condition. Despite the Company’s efforts, there can be no assurance that its cybersecurity risk management processes and measures described will be fully implemented, complied with, or effective in protecting its systems and information. The Company faces risks from certain cybersecurity threats that, if realized, are reasonably likely to materially affect its business strategy, results of operations or financial condition including through potential operational disruption, regulatory or supervisory actions, reputational harm or increased costs associated with remediation and recovery. See “Item 1A. Risk Factors” in this document for further information.
Governance
The Bank’s Board of Directors is responsible for overseeing the risks associated with cybersecurity threats. The Bank Operational Risk Committee (“Ops Risk”) of the Board has primary responsibility for overseeing the technology program, including management’s actions to identify, assess, mitigate, and remediate or prevent material cybersecurity issues and risks. The CISO and the CIO provide quarterly reports to the Ops Risk Committee regarding the information security and technology programs, key enterprise cybersecurity initiatives, and other matters relating to cybersecurity processes. The CISO also reports summaries of key issues, including significant cybersecurity incidents.
In addition to the Ops Risk Committee, the management-level Technology Committee (“TC”) focuses on and provides oversight of the information security program. The TC reviews and, as appropriate, approves the broad objectives, strategies and policies governing the Company’s protection of data assets and information security framework. The CRO additionally assesses the adequacy of information security practices and reports on cyber risk to the Risk Oversight Committee (“ROC”) of the Company’s Board of Directors. The TC is co-chaired by the CIO and CISO, and includes the CEO, CRO, COO, and other key departmental managers from throughout the Bank. This committee generally meets monthly to discuss various operational strategies and issues, including information technology and information security policies, practices, controls, and mitigation and prevention efforts.
The CISO, in coordination with the CRO, CIO and General Counsel, works across the Company to implement and monitor a program designed to protect the Company’s information systems from cybersecurity threats and promptly respond to any cybersecurity incidents in accordance with the Company’s cybersecurity incident response plan. The Company’s CISO has served in various roles in information technology and information security for over twenty years, including serving as a Cyberspace Operations Officer in the United States Air Force Reserves and instructing for the SANS Technology Institute. The Company’s CISO holds an undergraduate degree in Business Administration and has attained the professional certification of Certified Information Systems Security Professional (“CISSP”). The Company’s CRO has over a 25-year career in the banking industry and is currently serving as Senior Executive Vice President and Chief Risk Officer of Stellar Bank and Chief Risk Officer of Stellar Bancorp, Inc. Previously, the CRO has held the positions of President and Chief Risk Officer at Allegiance Bank and Executive Vice President and Chief Risk Officer at Allegiance. The Company’s CRO’s banking career as an executive started at Independence Bank in 2002 as Senior Credit Officer and eventually was promoted to President in 2009. Between 2010 and 2013, the CRO also served as CEO of Independence Bank until joining Allegiance Bank following a merger. The Company’s CRO has since assumed the roles of Regional President, Deputy Chief Credit Officer, and Chief Administration Officer at Allegiance Bank. The CRO holds an MBA from the University of Houston and a Bachelor of Arts in Finance & Marketing from the same institution.
The Company’s CEO, CFO and General Counsel each hold undergraduate and/or graduate degrees in their respective fields, and each have significant experience managing risks at the Company and at similar companies, including risks arising from cybersecurity threats. The members of the Boards of Directors of the Company and the Bank have hundreds of combined years of experience running successful companies and managing enterprise risk. Specific cybersecurity expertise is brought to the Board from independent directors who lead or have led technology firms and, as such, have direct managerial oversight of cybersecurity risks.
38

ITEM 2. PROPERTIES
The Company’s principal executive office is located at 9 Greenway Plaza, Suite 110, Houston, Texas 77046. As of December 31, 2025, we had 52 full-service banking centers, with 35 banking centers located in the Houston MSA, 16 banking centers in the Beaumont MSA and one banking center in Dallas, Texas. We lease 20 of these banking centers, as well as our executive office, and own the remaining 32 banking centers.
For the leased locations, the Company either leases the location entirely, owns the building and has a ground lease, or owns the drive through and leases the banking center. The Company believes that lease terms for the banking centers that it leases are generally consistent with prevailing market terms. The expiration dates of the leases range from 2026 to 2045, without consideration of any renewal periods available.
We believe that our facilities are in good condition and adequate to meet our operating needs for the present and immediately foreseeable future.
ITEM 3. LEGAL PROCEEDINGS
From time to time, we are subject to claims and litigation arising in the ordinary course of business. In the opinion of management, we are not party to any legal proceedings the resolution of which we believe would have a material adverse effect on our business, prospects, financial condition, liquidity, results of operation, cash flows or capital levels. However, one or more unfavorable outcomes in any claim or litigation against us could have a material adverse effect for the period in which such claim or litigation is resolved. In addition, regardless of their merits or their ultimate outcomes, such matters are costly, divert management’s attention and may materially adversely affect our reputation, even if resolved in our favor. We intend to defend ourselves vigorously against any future claims or litigation.
ITEM 4. MINE SAFETY DISCLOSURES
Not applicable.
PART II
ITEM 5. MARKET FOR REGISTRANT’S COMMON EQUITY, RELATED SHAREHOLDER MATTERS AND ISSUER PURCHASES OF EQUITY SECURITIES
Common Stock Market Prices
The Company’s common stock is listed on the New York Stock Exchange under the symbol “STEL.” As of February 24, 2026, there were 50,772,216 shares outstanding and 860 shareholders of record of the Company’s common stock. The closing price per share of common stock on December 31, 2025, the last trading day of the year, was $30.94.
Dividends
During 2025, the Company paid quarterly cash dividends of $0.14 per share of its common stock for the first quarter, second quarter and the third quarter and $0.15 per share of its common stock for the fourth quarter. During the first quarter of 2026, the Company declared a quarterly dividend of $0.15 per share to be paid in the first quarter of 2026. See Note 18 — Subsequent Events. Payments of future dividends, if any, will be at the discretion of the Company’s Board of Directors after taking into account various factors, including its business, operating results and financial condition, current and anticipated cash needs, plans for expansion and any legal or contractual limitations on the Company’s ability to pay dividends.
As a bank holding company, the Company’s ability to pay dividends is affected by the regulations promulgated by and the policies and enforcement powers of the Federal Reserve. In addition, because the Company is a holding company, it is dependent upon the payment of dividends by the Bank to the Company as its principal source of funds to pay dividends in the future, if any, and to make other payments. The Bank is also subject to various legal, regulatory and other restrictions on its ability to pay dividends and make other distributions and payments to the Company. See “Item 1. — Business—Regulation and Supervision—Regulatory Limits on Dividends, Distributions and Repurchases.”
39

The Company’s junior subordinated debentures allow it to defer interest payments thereunder for a period of time. To the extent the Company elects to defer any interest payments under the junior subordinated debentures, the Company will be prohibited by the terms of the junior subordinated debentures from making dividend payments on its common stock until it retires the arrearages on the junior subordinated debentures. In addition, the Company’s existing credit agreement restricts its ability to pay dividends under certain conditions.
Recent Sales of Unregistered Securities
None.
Securities Authorized for Issuance under Equity Compensation Plans
The following table provides information as of December 31, 2025, regarding the equity compensation plans under which the Company’s equity securities are authorized for issuance:

Plan Category |  | Number of securities to be issued upon exercise of outstanding options, warrants and rights (a) |  | Weighted-average exercise price of outstanding options, warrants and rights (b) |  | Number of securities remaining available for future issuance under equity compensation plans (excluding securities reflected in column (a)) (c)
Equity compensation plans approved by security holders |  | 710,388 |  |  | $ | 26.67 |  |  | 1,686,152 |
Equity compensation plans not approved by security holders |  | — |  |  | — |  |  | — |
Total |  | 710,388 |  |  |  |  | 1,686,152 |

Purchases of Equity Securities by the Issuer and Affiliated Purchasers
During 2024, the Company’s Board of Directors authorized a share repurchase program to provide that the Company may repurchase up to $60 million of the Company’s common stock through May 31, 2025 (the “2024-2025 Repurchase Program”) which was terminated as of April 23, 2025.
On April 23, 2025, the Company announced that its Board of Directors authorized a new share repurchase program which is similar to the previous repurchase program under which the Company may repurchase up to $65 million of the Company’s common stock through May 31, 2026 (the “2025-2026 Repurchase Program”). Repurchases under the 2025-2026 Repurchase Program may be made from time to time at the Company’s discretion in open market transactions, through block trades, in privately negotiated transactions, and pursuant to any trading plan that may be adopted by the Company’s management in accordance with Rule 10b5-1 of the Securities Exchange Act of 1934, as amended, or otherwise. The timing and actual number of shares repurchased will depend on a variety of factors including price, corporate and regulatory requirements, market conditions, and other corporate liquidity requirements and priorities. The 2025-2026 Repurchase Program does not obligate the Company to acquire a specific dollar amount or number of shares and may be modified, suspended or discontinued at any time. As of December 31, 2025, the number of shares that may be repurchased under 2025-2026 plan was 1,545,111 based on the closing share price of the Company's common stock. The Company repurchased 299,347 shares at a weighted-average price of $30.44 per share during the fourth quarter of 2025 under the 2025-2026 Repurchase Program. All shares repurchased were retired.
The following table provides information with respect to purchases made by or on behalf of the Company or any “affiliated purchaser” (as defined in Rule 10b-18(a)(3) under the Securities Exchange Act of 1934) of the Company’s common stock during the fourth quarter of 2025.

Period |  | Number of Shares Purchased(1) |  | Shares Purchased as Part of Publicly Announced Plan |  | Average Price Paid Per Share |  | Number of Shares That May Yet be Purchased Under the Plan(2)
October 1, 2025 to October 31, 2025 |  | 27,833 |  |  | 44,948 |  |  | $ | 29.56 |  |  | 1,889,238 |
November 1, 2025 to November 30, 2025 |  | 50 |  |  | 142,410 |  |  | $ | 30.22 |  |  | 1,622,799 |
December 1, 2025 to December 31, 2025 |  | — |  |  | 111,989 |  |  | $ | 31.17 |  |  | 1,545,111 |
Total |  | 27,883 |  |  | 299,347 |  |  | $ | 30.40 |  |  |

40

(1) Shares employees elected to have withheld to satisfy their tax liabilities related to options exercised or restricted stock vested or to pay the exercise price of the options as allowed under the Company’s stock compensation plans. When this settlement method is elected by the employee, the Company repurchases the shares withheld upon vesting of the award stock.
(2) Computed based on the closing price of the Company’s common stock as of the end of each period shown.
Performance Graph
On October 1, 2022, Allegiance Bancshares, Inc. merged with CBTX, Inc. (“CBTX”) with CBTX as the surviving corporation that was renamed Stellar Bancorp, Inc. The performance graph compares the cumulative total shareholder return on CBTX common stock for the period beginning at the close of trading on December 31, 2020 to the close of trading on September 30, 2022 and Stellar’s common stock for the period beginning October 1, 2022 to the close of trading on December 31, 2025, with the cumulative total return of the Russell 2000 Index and the S&P 600 Banks Index. Dividend reinvestment has been assumed. The Performance graph assumes $100 invested on December 31, 2020 in the Company’ common stock and each comparative index shown. The historical stock price performance for Stellar’s common stock shown on the graph below is not necessarily indicative of future stock performance.
* $100 invested on December 31, 2020 in Stellar’s common stock or an index, including reinvestment of dividends. Fiscal year ending De cember 31.

| 2020 |  | 2021 |  | 2022 |  | 2023 |  | 2024 |  | 2025
Stellar Bancorp, Inc. | 100.00 |  | 115.79 |  | 119.73 |  | 115.51 |  | 120.12 |  | 133.67
Russell 2000 | 100.00 |  | 114.82 |  | 91.35 |  | 106.82 |  | 119.14 |  | 134.40
S&P 600 Banks | 100.00 |  | 135.74 |  | 125.04 |  | 122.91 |  | 140.90 |  | 147.34

(Source: Refinitiv)
ITEM 6. [RESERVED]
41

ITEM 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS
Cautionary Notice Regarding Forward-Looking Statements
This Annual Report on Form 10-K contains forward‑looking statements. These forward‑looking statements reflect the Company’s current views with respect to, among other things, future events and the Company’s financial performance. These statements are often, but not always, made through the use of words or phrases such as “may,” “should,” “could,” “predict,” “potential,” “believe,” “will likely result,” “expect,” “continue,” “will,” “anticipate,” “seek,” “estimate,” “intend,” “plan,” “projection,” “would,” and “outlook,” or the negative version of those words or other comparable words or phrases of a future or forward‑looking nature. These forward‑looking statements are not historical facts, and are based on current expectations, estimates and projections about the Company’s industry, management’s beliefs and certain assumptions made by management, many of which, by their nature, are inherently uncertain and beyond the Company’s control. Accordingly, the Company cautions that any such forward‑looking statements are not guarantees of future performance and are subject to risks, assumptions and uncertainties that are difficult to predict. Although the Company believes that the expectations reflected in these forward‑looking statements are reasonable as of the date made, actual results may prove to be materially different from the results expressed or implied by the forward‑looking statements.
There are or will be important factors that could cause the Company’s actual results to differ materially from those indicated in these forward‑looking statements, including, but not limited to, the risks described in “Part I.—Item 1A.—Risk Factors” and the following:
•the proposed transaction with Prosperity, including the likelihood of the satisfaction of the conditions to the completion of the transaction and whether and when the transaction will be consummated;
•disruptions to the economy and the U.S. banking system caused by recent bank failures;
•risks associated with uninsured deposits and responsive measures by federal or state governments or banking regulators, including increases in our deposit insurance assessments and other actions of the Board of Governors of the Federal Reserve System, FDIC and Texas Department of Banking, legislative and regulatory actions and reforms and executive orders;
•the effects of and changes in trade and monetary and fiscal policies and laws, including the interest rate policies of the Federal Reserve Board and the imposition of tariffs and retaliatory tariffs;
•inflation, interest rate, capital and securities markets and monetary fluctuations;
•changes in the interest rate environment, the value of the Company’s assets and obligations and the availability of capital and liquidity;
•general competitive, economic, political and market conditions and other factors that may affect future results of the Company including changes in asset quality and credit risk;
•local, regional, national and international economic conditions and the impact they may have on the Company and our customers and the Company’s assessment of that impact;
•the inability to sustain revenue and earnings growth;
•impairment of the Company’s goodwill or other intangible assets;
•the composition of the Company’s loan portfolio and the concentration of loans in commercial real estate and commercial real estate construction;
•the geographic concentration of the Company’s market;
•the accuracy and sufficiency of the assumptions and estimates the Company makes in establishing reserves for potential loan losses and other estimates;
•the amount of nonperforming and classified assets that the Company holds and the time and effort necessary to resolve nonperforming assets;
•deterioration of asset quality;
•customer borrowing, repayment, investment and deposit practices;
•the ability to maintain important deposit customer relationships;
•changes in the value of collateral securing the Company’s loans;
42

•natural disasters, climate change and adverse weather in the Company’s market area;
•the impact of pandemics, epidemics or any other health-related crisis;
•acts of terrorism, an outbreak of hostilities, such as the conflicts in Ukraine or the Middle East, or other international or domestic calamities;
•the ability to maintain effective internal control over financial reporting;
•the cost and effects of cyber incidents or other failures, interruptions or security breaches of the Company's systems or those of the Company’s customers or third-party providers;
•the failure of certain third- or fourth-party vendors to perform;
•the impact, extent and timing of technological changes;
•the institution and outcome of litigation and other legal proceedings against the Company or to which it may become subject;
•the costs, effects and results of regulatory examinations, investigations, or reviews or the ability to obtain required regulatory approvals or meet conditions associated with the same;
•changes in the laws, rules, regulations, interpretations or policies relating to financial institution, accounting, tax, trade, monetary and fiscal matters;
•the effect of changes in accounting policies and practices, as may be adopted by the regulatory agencies, as well as the Public Company Accounting Oversight Board, the Financial Accounting Standards Board and other accounting standard setters; and
•other risks, uncertainties, and factors that are discussed from time to time in the Company’s reports and documents filed with the SEC.
The following discussion and analysis of the Company’s financial condition and results of operations should be read in conjunction with “Item 15. Exhibits and Financial Statement Schedules” and the consolidated financial statements and the accompanying notes included elsewhere in this Annual Report on Form 10-K. This discussion and analysis includes forward-looking statements that are subject to certain risks and uncertainties and are based on certain assumptions that the Company believes are reasonable but may prove to be inaccurate. Certain risks, uncertainties and other factors, including those set forth in “Part I. Item 1A.—Risk Factors” and elsewhere in this Annual Report on Form 10-K, may cause actual results to differ materially from those projected results discussed in the forward-looking statements appearing in this discussion and analysis.
The Company disclaims any obligation and does not intend to update or revise any forward-looking statements contained in this Annual Report on Form 10-K, which speak only as of the date hereof, whether as a result of new information, future events or otherwise, except as required by federal securities laws. As forward-looking statements involve significant risks and uncertainties, caution should be exercised against placing undue reliance on such statements.
Overview
We generate most of our income from interest income on loans, interest income from investments in securities and service charges on customer accounts. We incur interest expense on deposits and other borrowed funds and noninterest expenses such as salaries and employee benefits and occupancy expenses. Net interest income is the difference between interest income on earning assets such as loans and securities and interest expense on liabilities such as deposits and borrowings that are used to fund those assets. Net interest income is our largest source of revenue. To evaluate net interest income, we measure and monitor (1) yields on our loans and other interest-earning assets, (2) the interest expenses of our deposits and other funding sources, (3) our net interest spread and (4) our net interest margin. Net interest spread is the difference between rates earned on interest-earning assets and rates paid on interest-bearing liabilities. Net interest margin is calculated as net interest income divided by average interest-earning assets. Because noninterest-bearing sources of funds, such as noninterest-bearing deposits and shareholders’ equity, also fund interest-earning assets, net interest margin includes the benefit of these noninterest-bearing sources.
Our net interest income is affected by changes in the amount and mix of interest-earning assets and interest-bearing liabilities, referred to as a “volume change.” Periodic changes in the volume and types of loans in our loan portfolio are affected by, among other factors, economic and competitive conditions in Texas and specifically in our market, as well as developments affecting the real estate, technology, financial services, insurance, transportation, manufacturing and energy sectors within our market and throughout the state of Texas.
Our net interest income is also affected by changes in yields earned on interest-earning assets and rates paid on interest-bearing deposits and borrowed funds, referred to as a “rate change.” Fluctuations in market interest rates are driven by many factors,
43

including governmental monetary policies, inflation, deflation, macroeconomic developments, changes in unemployment, the money supply, political and international conditions and conditions in domestic and foreign financial markets.
On January 27, 2026, the Company entered into the Agreement and Plan of Merger (the “Merger Agreement”) with Prosperity Bancshares, Inc., a Texas corporation (“Prosperity”). The Merger Agreement provides that, upon the terms and subject to the conditions set forth therein, the Company will merge with and into Prosperity (the “Merger”), with Prosperity continuing as the surviving corporation in the Merger. Immediately following the Merger, Stellar Bank will merge with and into Prosperity’s wholly owned banking subsidiary, Prosperity Bank (the “Bank Merger”). Prosperity Bank will continue as the surviving bank in the Bank Merger. Upon the terms and subject to the conditions set forth in the Merger Agreement, at the effective time of the Merger (the “Effective Time”), each share of common stock, par value $0.01 per share, of the Company (“Stellar Common Stock”) outstanding immediately prior to the Effective Time, other than certain shares held by Prosperity or Stellar and shares held by a holder of Stellar Common Stock who has properly exercised applicable dissenters’ rights in respect of such share, will be converted into the right to receive (i) 0.3803 shares of common stock, par value $1.00 per share, of Prosperity and (ii) an amount in cash equal to $11.36. The closing of the Merger is expected to occur in the second quarter of 2026, subject to customary conditions, including approval of the Company's shareholders and regulatory approvals. See Part I, Item 1A, “Risk Factors,” Part II, Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” and Note 18 – Subsequent Events of the Notes to Consolidated Financial Statement included in this Annual Report on Form 10-K for additional information regarding the transaction.
Critical Accounting Policies
Certain of our accounting estimates are important to the portrayal of our financial condition, since they require management to make difficult, complex or subjective judgments, some of which may relate to matters that are inherently uncertain. Estimates are susceptible to material changes as a result of changes in facts and circumstances. Facts and circumstances that could affect these judgments include, but are not limited to, changes in interest rates, changes in the performance of the economy and changes in the financial condition of borrowers. Management believes that determining the allowance for credit losses is its most critical accounting estimate. Our accounting policies are discussed in detail in Note 1 – Nature of Operations and Summary of Significant Accounting and Reporting Policies in the accompanying notes to the consolidated financial statements.
Allowance for Credit Losses
The allowance for credit losses is a valuation account which represents management’s best estimate of lifetime expected losses based on reasonable and supportable forecasts, historical loss experience, and other qualitative considerations. Management considers the policies related to the allowance for credit losses as the most critical to the financial statement presentation. The Company bases its estimates of credit losses on three primary components: (1) estimates of expected losses that exist in various segments of performing loans over the remaining life of the loan portfolio using a reasonable and supportable economic forecast, (2) specifically identified losses in individually analyzed credits which are collateral-dependent, which generally include nonaccrual loans and purchased credit deteriorated (“PCD”) loans and (3) qualitative factors related to economic conditions, portfolio concentrations, regulatory policy updates, and other relevant factors that address estimates of expected losses. Estimating the timing and amounts of future losses is subject to management’s judgment as these projected cash flows rely upon the estimates discussed above and factors that are reflective of current or future expected conditions using analytical and forecasting models and tools. Volatility in certain credit metrics and differences between expected and actual outcomes are to be expected. For example, customers may not repay their loans according to the original terms, and the collateral securing the payment of those loans may be insufficient to pay any remaining loan balance.
Loans with similar risk characteristics are aggregated into homogenous pools and are collectively evaluated by applying reserve factors, such as historical lifetime loss, concentration risk, volume, growth and composition of the loan portfolio, current and forecasted economic conditions to amortized cost balances over the remaining contractual life of the collectively evaluated portfolio. Historical lifetime loss is determined by utilizing an open-pool cumulative loss rate methodology, adjusted for credit risk characteristics and current and forecasted economic conditions. Losses are predicted over a reasonable and supportable period of one year for all loan pools, followed by an immediate reversion to long-term historical averages. The reasonable and supportable period and reversion period are re-evaluated as needed by the Company and are dependent on the current economic environment among other factors.
Loans that no longer share risk characteristics with the collectively evaluated loan pools are evaluated on an individual basis and are excluded from the collectively evaluated pools. In order to assess which loans are to be individually evaluated, the Company follows a loan review program to evaluate the credit risk in the total loan portfolio and assigns risk grades to each loan. Individual credit loss estimates are typically performed for nonaccrual loans and all other loans identified by management. All loans deemed as being individually evaluated are reviewed on a quarterly basis in order to determine whether a specific reserve is required. The
44

Company considers certain loans to be collateral dependent if the borrower is experiencing financial difficulty and management expects repayment for the loan to be substantially through the operation or sale of the collateral. For collateral dependent loans, loss estimates are based on the fair value of collateral, less estimated cost to sell (if applicable). Collateral values supporting individually evaluated loans are assessed quarterly and appraisals are typically obtained at least annually. The Company allocates a specific loan loss reserve on an individual loan basis primarily based on the value of the collateral securing the individually evaluated loan. Through this loan review process, the Company assesses the overall quality of the loan portfolio and the adequacy of the allowance for credit losses on loans while considering risk elements attributable to particular loan types in assessing the quality of individual loans. In addition, for each category of loans, the Company considers secondary sources of income and the financial strength and credit history of the borrower and any guarantors.
A change in the allowance for credit losses on loans can be attributable to several factors, most notably historical lifetime loss, specific reserves for individually evaluated loans, changes in qualitative factors and growth within the loan portfolio. The estimated loan losses for all loan pools are adjusted for changes in qualitative factors not inherently considered in the quantitative analyses to bring the allowance to the level management believes is appropriate based on factors that have not otherwise been fully accounted for, including adjustments for foresight risk, input imprecision and model imprecision. The qualitative categories and the measurements used to quantify the risks within each of these categories are subjectively selected by management, but measured by objective measurements period over period. The data for each measurement may be obtained from internal or external sources. The current period measurements are evaluated and assigned a factor commensurate with the current level of risk relative to past measurements over time. The resulting qualitative adjustments are applied to the relevant collectively evaluated loan portfolios. These adjustments are based upon quarterly trend assessments in portfolio concentrations, changes in lending policies and procedures, policy exceptions, independent loan review results, internal risk ratings and peer group credit quality trends. Additional qualitative considerations are made for any identified risk which did not exist within our portfolio historically and therefore may not be adequately addressed through evaluation of such risk factors based on historical portfolio trends. Qualitative adjustments also include current and forecasted economic conditions primarily measured by local and national economic metrics, such as GDP, unemployment rates, interest rates and oil and gas prices based on historical and forecasted economic research scenarios provided by industry-leading financial intelligence and analytical solutions, which the Company has subscribed to. The qualitative allowance allocation is increased or decreased for each loan pool based on the assessment of these various qualitative factors. Management recognizes the sensitivity of various assumptions made in the quantitative modeling of expected losses and may adjust reserves depending upon the level of uncertainty that currently exists in one or more assumptions.
As of December 31, 2025, based on sensitivity analyses across all segments of the performing loan portfolio, a 5% increase in historical loss rates would have increased funded reserves by $1.1 million. On the other hand, a 5% increase in each qualitative risk factor across all segments (where assigned) would have increased funded reserves by $2.9 million. Increasing estimated loss rates by 5% (i.e. quantitative and qualitative) would have a $3.5 million impact.
The allowance for credit losses could be affected by significant downturns in circumstances relating to loan quality and economic conditions and as such may not be sufficient to cover expected losses in the loan portfolio which could necessitate additional provisions or a reduction in the allowance for credit losses if our assumption prove to be incorrect. Unanticipated changes and events could have a significant impact on the financial performance of borrowers and their ability to perform as agreed. We may experience significant credit losses if borrowers experience financial difficulties, which could have a material adverse effect on our operating results.
Goodwill
Goodwill represents the excess of the consideration paid over the fair value of the net assets acquired in a business combination. During the measurement period, the Company may record subsequent adjustments to goodwill for provisional amounts recorded at the acquisition date.
Goodwill is subject to impairment testing, which must be conducted at least annually or upon the occurrence of a triggering event. Goodwill is recorded and evaluated for impairment at its reporting unit, the Company. The Company’s policy is to test goodwill for impairment at least annually as of October 1st, or on an interim basis if an event triggering an impairment assessment is determined to have occurred. Various factors, such as the Company’s results of operations, the trading price of the Company’s common stock relative to the book value per share, macroeconomic conditions and conditions in the banking sector, inform whether a triggering event for an interim goodwill impairment test has occurred. The impairment test compares the estimated fair value of each reporting unit with its net book value. If the unit’s fair value is less than its carrying value, an impairment loss is recognized in our results of operations in the periods in which they become known in an amount equal to this excess.
See Note 2 – Goodwill and Other Intangible Assets to the consolidated financial statements for additional information on the Company’s goodwill balances.
45

Recently Issued Accounting Pronouncements
We have evaluated new accounting pronouncements that have recently been issued. Refer to Note 1 – Nature of Operations and Summary of Significant Accounting and Reporting Policies in the accompanying notes to the consolidated financial statements for a discussion of recent accounting pronouncements that have been adopted by the Company or that will require enhanced disclosures in the Company’s financial statements in future periods.
Pending Merger with Prosperity
On January 27, 2026, we entered into the Merger Agreement with Prosperity. Upon the terms and subject to the conditions set forth therein, the Company will merge with and into Prosperity with Prosperity continuing as the surviving corporation in the Merger. Immediately following the Merger, Stellar Bank will merge with and into Prosperity’s wholly owned banking subsidiary, Prosperity Bank. Prosperity Bank will continue as the surviving bank in the Bank Merger.
At the Effective Time of the Merger, each share of the Company’s common stock outstanding immediately prior to the Effective Time (other than certain shares held by Prosperity or the Company and shares held by a holder of the Company’s common stock who has properly exercised applicable dissenters’ rights in respect of such share) will be converted into the right to receive (1) 0.3803 shares of common stock, par value $1.00 per share, of Prosperity (the “Exchange Ratio”), and (2) an amount in cash equal to $11.36 (the “Per Share Cash Merger Consideration”).
The Merger Agreement contains customary representations and warranties from both Prosperity and the Company, and each party has agreed to customary covenants, including, among others, covenants relating to (1) the conduct of its business or the taking of certain extraordinary actions during the interim period between the execution of the Merger Agreement and the Effective Time and (2) the Company’s obligation to call a meeting of its shareholders to approve the Merger and the Merger Agreement, and, subject to certain exceptions, to recommend that its shareholders approve the Merger and the Merger Agreement. The Company has also agreed to certain non-solicitation obligations related to alternative business combination proposals.
The completion of the Merger is subject to customary conditions, including (1) approval of the Merger Agreement by the Company’s shareholders, (2) authorization for listing on the New York Stock Exchange of the shares of Prosperity Common Stock to be issued in the Merger, subject to official notice of issuance, (3) the receipt of required regulatory approvals, including the approval or waiver of prior approval of the Board of Governors of the Federal Reserve System, the Federal Deposit Insurance Corporation and the Texas Department of Banking, (4) effectiveness of the registration statement on Form S-4 for the Prosperity Common Stock to be issued in the Merger, and (5) the absence of any order, injunction, decree or other legal restraint preventing the completion of the Merger, the Bank Merger or any of the other transactions contemplated by the Merger Agreement or making the completion of the Merger, the Bank Merger or any of the other transactions contemplated by the Merger Agreement illegal. Each party’s obligation to complete the Merger is also subject to certain additional customary conditions, including (1) subject to certain exceptions, the accuracy of the representations and warranties of the other party, (2) performance in all material respects by the other party of its obligations under the Merger Agreement and (3) receipt by such party of an opinion from counsel to the effect that the Merger will qualify as a reorganization within the meaning of Section 368(a) of the Internal Revenue Code of 1986, as amended.
The Merger Agreement contained certain termination rights for the Company and Prosperity. Subject to the terms and conditions of the Merger Agreement, the Company or Prosperity may terminate the Merger Agreement if the Merger is not consummated on or before January 27, 2027, which period may be extended automatically if at the end of the initial period, either of the conditions relating to the approval of the Merger pursuant to various regulatory requirements or the absence of certain legal restraints preventing or otherwise making illegal the consummation of the Merger has not been satisfied. Upon termination of the Merger Agreement, under specified circumstances, the Company will be required to pay Prosperity a termination fee of $78 million.
At the Effective Time, each Company stock option with a per-share exercise price that is less than the Per Share Merger Consideration Value will be cancelled and the holder of such cancelled option will be entitled to receive (without interest) an amount in cash equal to the product of (1) the excess of the Per Share Merger Consideration Value over the option’s per-share exercise price, multiplied by (2) the number of shares of Stellar Common Stock subject to such stock option immediately prior to the Effective Time. Any Company stock option with a per-share exercise price that is equal to or greater than the Per Share Merger Consideration Value will be cancelled for no consideration. “Per Share Merger Consideration Value” refers to the sum of (1) the Per Share Cash Consideration plus (2) the product of (x) the Exchange Ratio multiplied by (y) the average of the closing sale prices of Prosperity Common Stock on the New York Stock Exchange as reported by The Wall Street Journal for the ten consecutive full trading days ending on and including the fifth trading day immediately preceding the closing date.
46

At the Effective Time, each outstanding restricted stock award in respect of Stellar Common Stock subject solely to service-based vesting, repurchase or other lapse restriction will vest and be converted into the right to receive (without interest) the Per Share Merger Consideration.
At the Effective Time, each outstanding restricted unit award in respect of Stellar Common Stock subject to performance-based vesting will vest and be converted into the right to receive (without interest) a cash payment equal to the product of (a) the Per Share Merger Consideration Value multiplied by (b) the number of shares of Stellar Common Stock subject to such performance unit award, with achievement of applicable performance metrics determined to be equal to 100% of the target level (or, in the case of the performance units granted in 2024, 200% of the target level).
Results of Operations
This section provides a comparative discussion of the Company’s results of operations for the two-year period ended December 31, 2025, unless otherwise specified. See “Item 7. Management Discussion and Analysis of Financial Condition and Results of Operations” in our Annual Report on Form 10-K for the year ended December 31, 2024 for a discussion of 2024 versus 2023 results.
Net income was $102.9 million, or $1.99 per diluted common share, for the year ended December 31, 2025 compared with $115.0 million, or $2.15 per diluted common share, for the year ended December 31, 2024, a decrease of $12.1 million, or 10.5%. The decrease in net income was primarily due to a $13.0 million increase in the provision for credit losses, a $6.4 million decrease in net interest income and a $1.3 million decrease in noninterest income, partially offset by a $3.5 million decrease in noninterest expense along with a $5.0 million decrease in the provision for income taxes. See further analysis of the material fluctuations in the related discussions that follow.
Returns on average equity were 6.34% and 7.34%, returns on average assets were 0.97% and 1.08% and efficiency ratios were 62.28% and 61.53% for the years ended December 31, 2025 and 2024, respectively. The efficiency ratio is calculated by dividing total noninterest expense, excluding the amortization of core deposits, by the sum of net interest income plus noninterest income, excluding net gains and losses on sale/write-down of assets.
Net Interest Income
Net interest income before the provision for credit losses for the year ended December 31, 2025 was $401.6 million compared with $408.0 million for the year ended December 31, 2024, a decrease of $6.4 million, or 1.6%. The decrease in net interest income from the prior year was primarily due to the decrease in average interest-earning assets partially offset by the decrease in the cost of interest-bearing liabilities.
Interest income was $574.5 million for the year ended December 31, 2025, a decrease of $27.9 million, or 4.6%, compared to $602.4 million for the year ended December 31, 2024 primarily due to the decrease in the yield on average interest-earnings assets driven partially by lower average loans in the interest-earnings asset mix and lower interest income from purchase accounting adjustments. Average interest-earning assets decreased $59.7 million, or 0.6%, for the year ended December 31, 2025 compared with the year ended December 31, 2024 primarily due a decrease in average loans, partially offset by increases in average securities and deposits in other financial institutions. The yield on average interest-earning assets decreased to 6.00% for the year ended December 31, 2025 from 6.25% for the same period in 2024 as loans decreased as a portion of the interest-earning asset mix. The yield on loans also decreased to 6.68% for the year ended 2025 from 6.89% for the year ended 2024 due to interest income from purchase accounting adjustments and lower interest rates. The yield on average securities increased to 3.75% for the year ended 2025 from 3.34% for the year ended 2024. Additionally, interest income from purchase accounting adjustments was $19.3 million for the year ended December 31, 2025 compared to $33.0 million for the year ended December 31, 2024.
Interest expense was $172.9 million for the year ended December 31, 2025, a decrease of $21.6 million, or 11.1%, compared to $194.4 million for the year ended December 31, 2024. This decrease was primarily due to lower interest rates on interest-bearing deposits and borrowed funds partially offset by an increase in average interest-bearing deposits. The cost of average interest-bearing liabilities decreased to 3.06% for the year ended December 31, 2025 from 3.46% for the same period in 2024. Average interest-bearing deposits increased $127.1 million for the year ended December 31, 2025 compared to the year ended December 31, 2024 due to an increase in interest-bearing demand deposits and money market and savings deposits, partially offset by a decrease in certificates and other time deposits. Additionally, borrowed funds and subordinated debt decreased $102.0 million for the year ended December 31, 2025 compared to the same period in 2024.
47

Tax equivalent net interest margin, defined as net interest income adjusted for tax-free income divided by average interest-earning assets, for the year ended December 31, 2025 was 4.20%, a decrease of four basis points compared to 4.24% for the year ended December 31, 2024. The decrease in the net interest margin on a tax equivalent basis was primarily due to decreased yields on earning assets more than offsetting decreased funding costs. The average rate paid on interest-bearing liabilities of 3.06% and the average yield on interest-earning assets of 6.00% for the year ended December 31, 2025 decreased by 40 basis points and 25 basis points, respectively, over the same period in 2024. Tax equivalent adjustments to net interest margin are the result of increasing income from tax-free securities and loans by an amount equal to the taxes that would have been paid if the income were fully taxable based on a 21% federal tax rate for the years ended December 31, 2025, 2024 and 2023, thus making tax-exempt yields comparable to taxable asset yields.
The following table presents, for the periods indicated, the total dollar amount of average balances, interest income from average interest-earning assets and the resultant yields, as well as the interest expense on average interest-bearing liabilities, expressed in both dollars and rates. Average loans include loans on nonaccrual status carrying a zero yield.

| Years Ended December 31,
| 2025 |  | 2024 |  | 2023
| Average Balance |  | Interest Earned/ Interest Paid |  | Average Yield/ Rate |  | Average Balance |  | Interest Earned/ Interest Paid |  | Average Yield/ Rate |  | Average Balance |  | Interest Earned/ Interest Paid |  | Average Yield/ Rate
| (Dollars in thousands)
Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest-Earning Assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans | $ | 7,263,152 |  |  | $ | 484,877 |  |  | 6.68% |  | $ | 7,712,122 |  |  | $ | 531,680 |  |  | 6.89% |  | $ | 7,961,911 |  |  | $ | 537,722 |  |  | 6.75%
Securities | 1,828,752 |  |  | 68,576 |  |  | 3.75% |  | 1,593,073 |  |  | 53,165 |  |  | 3.34% |  | 1,490,588 |  |  | 41,047 |  |  | 2.75%
Deposits in other financial institutions | 488,213 |  |  | 21,017 |  |  | 4.30% |  | 334,654 |  |  | 17,555 |  |  | 5.25% |  | 242,803 |  |  | 12,048 |  |  | 4.96%
Total interest-earning assets | 9,580,117 |  |  | $ | 574,470 |  |  | 6.00% |  | 9,639,849 |  |  | $ | 602,400 |  |  | 6.25% |  | 9,695,302 |  |  | $ | 590,817 |  |  | 6.09%
Allowance for credit losses on loans | (81,708) |  |  |  |  |  |  | (91,770) |  |  |  |  |  |  | (95,668) |  |  |  |  |
Noninterest-earning assets | 1,086,711 |  |  |  |  |  |  | 1,098,396 |  |  |  |  |  |  | 1,147,232 |  |  |  |  |
Total assets | $ | 10,585,120 |  |  |  |  |  |  | $ | 10,646,475 |  |  |  |  |  |  | $ | 10,746,866 |  |  |  |  |
Liabilities and Shareholders’ Equity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest-Bearing Liabilities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest-bearing demand deposits | $ | 1,952,032 |  |  | $ | 54,429 |  |  | 2.79% |  | $ | 1,618,212 |  |  | $ | 48,290 |  |  | 2.98% |  | $ | 1,464,015 |  |  | $ | 38,689 |  |  | 2.64%
Money market and savings deposits | 2,407,951 |  |  | 66,102 |  |  | 2.75% |  | 2,236,678 |  |  | 64,956 |  |  | 2.90% |  | 2,259,264 |  |  | 48,646 |  |  | 2.15%
Certificates and other time deposits | 1,196,586 |  |  | 46,276 |  |  | 3.87% |  | 1,574,598 |  |  | 68,745 |  |  | 4.37% |  | 1,239,345 |  |  | 41,286 |  |  | 3.33%
Borrowed funds | 20,791 |  |  | 986 |  |  | 4.74% |  | 77,662 |  |  | 4,549 |  |  | 5.86% |  | 318,721 |  |  | 17,807 |  |  | 5.59%
Subordinated debt | 62,605 |  |  | 5,057 |  |  | 8.08% |  | 107,768 |  |  | 7,868 |  |  | 7.30% |  | 109,560 |  |  | 7,630 |  |  | 6.96%
Total interest-bearing liabilities | 5,639,965 |  |  | $ | 172,850 |  |  | 3.06% |  | 5,614,918 |  |  | $ | 194,408 |  |  | 3.46% |  | 5,390,905 |  |  | $ | 154,058 |  |  | 2.86%
Noninterest-Bearing Liabilities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noninterest-bearing demand deposits | 3,236,602 |  |  |  |  |  |  | 3,369,931 |  |  |  |  |  |  | 3,814,651 |  |  |  |  |
Other liabilities | 85,472 |  |  |  |  |  |  | 94,165 |  |  |  |  |  |  | 85,376 |  |  |  |  |
Total liabilities | 8,962,039 |  |  |  |  |  |  | 9,079,014 |  |  |  |  |  |  | 9,290,932 |  |  |  |  |
Shareholders’ equity | 1,623,081 |  |  |  |  |  |  | 1,567,461 |  |  |  |  |  |  | 1,455,934 |  |  |  |  |
Total liabilities and shareholders’ equity | $ | 10,585,120 |  |  |  |  |  |  | $ | 10,646,475 |  |  |  |  |  |  | $ | 10,746,866 |  |  |  |  |
Net interest rate spread |  |  |  |  | 2.94% |  |  |  |  |  | 2.79% |  |  |  |  |  | 3.23%
Net interest income and margin(1) |  |  | $ | 401,620 |  |  | 4.19% |  |  |  | $ | 407,992 |  |  | 4.23% |  |  |  | $ | 436,759 |  |  | 4.50%
Net interest income and margin (tax equivalent)(2) |  |  | $ | 402,005 |  |  | 4.20% |  |  |  | $ | 408,305 |  |  | 4.24% |  |  |  | $ | 437,670 |  |  | 4.51%
Cost of funds |  |  |  |  | 1.95% |  |  |  |  |  | 2.16% |  |  |  |  |  | 1.67%
Cost of deposits |  |  |  |  | 1.90% |  |  |  |  |  | 2.07% |  |  |  |  |  | 1.47%

(1)The net interest margin is equal to annualized net interest income divided by average interest-earning assets.
(2)Tax-equivalent adjustments have been computed using a federal income tax rate of 21% for the years ended December 31, 2025, 2024 and 2023.
48

The following table presents information regarding the dollar amount of changes in interest income and interest expense for the periods indicated for each major component of interest-earnings assets and interest-bearing liabilities and distinguishes between the changes attributable to changes in volume and changes in interest rates. For purposes of this table, changes attributable to both rate and volume that cannot be segregated have been allocated to rate.

| Years Ended December 31,
| 2025 vs. 2024 |  | 2024 vs. 2023
| Increase (Decrease) Due to Change in |  | Total |  | Increase (Decrease) Due to Change in |  | Total
| Volume |  | Rate |  | Volume |  | Rate
| (In thousands)
Interest-Earning Assets: |  |  |  |  |  |  |  |  |  |  |
Loans | $ | (30,952) |  |  | $ | (15,851) |  |  | $ | (46,803) |  |  | $ | (16,870) |  |  | $ | 10,828 |  |  | $ | (6,042) |
Securities | 7,865 |  |  | 7,546 |  |  | 15,411 |  |  | 2,822 |  |  | 9,296 |  |  | 12,118 |
Deposits in other financial institutions | 8,055 |  |  | (4,593) |  |  | 3,462 |  |  | 4,558 |  |  | 949 |  |  | 5,507 |
Total (decrease) increase in interest income | (15,032) |  |  | (12,898) |  |  | (27,930) |  |  | (9,490) |  |  | 21,073 |  |  | 11,583 |
Interest-Bearing Liabilities: |  |  |  |  |  |  |  |  |  |  |
Interest-bearing demand deposits | 9,962 |  |  | (3,823) |  |  | 6,139 |  |  | 4,075 |  |  | 5,526 |  |  | 9,601 |
Money market and savings deposits | 4,974 |  |  | (3,828) |  |  | 1,146 |  |  | (486) |  |  | 16,796 |  |  | 16,310 |
Certificates and other time deposits | (16,504) |  |  | (5,965) |  |  | (22,469) |  |  | 11,168 |  |  | 16,291 |  |  | 27,459 |
Borrowed funds | (3,331) |  |  | (232) |  |  | (3,563) |  |  | (13,468) |  |  | 210 |  |  | (13,258) |
Subordinated debt | (3,297) |  |  | 486 |  |  | (2,811) |  |  | (125) |  |  | 363 |  |  | 238 |
Total (decrease) increase in interest expense | (8,196) |  |  | (13,362) |  |  | (21,558) |  |  | 1,164 |  |  | 39,186 |  |  | 40,350 |
(Decrease) increase in net interest income | $ | (6,836) |  |  | $ | 464 |  |  | $ | (6,372) |  |  | $ | (10,654) |  |  | $ | (18,113) |  |  | $ | (28,767) |

Provision for Credit Losses
Our allowance for credit losses is established through charges to income in the form of a provision in order to bring our allowance for credit losses for various types of financial instruments including loans, securities and unfunded commitments to a level deemed appropriate by management. We recorded a provision for credit losses of $10.2 million for the year ended December 31, 2025 compared to a reversal of provision for credit losses of $2.9 million for the year ended December 31, 2024. The provision for credit losses during 2025 was primarily due the increase in specific reserves on individually evaluated loans within the allowance for credit losses model primarily due to the increase in nonperforming loans along with originations during the year on portfolios with higher loss rates. The reversal of provision for credit losses during 2024 was primarily due to the decrease in loans outstanding and changes to the specific reserves within the allowance for credit losses model, among other things. See further discussion of the allowance for the credit losses in “Financial Condition-Asset Quality.”
Net charge-offs were $3.8 million for the year ended December 31, 2025 compared to net charge-offs of $6.7 million for the year ended December 31, 2024.
Noninterest Income
Our primary sources of noninterest income are service charges on deposit accounts, income earned on bank-owned life insurance and debit card and interchange income. Noninterest income does not include loan origination fees which are recognized over the life of the related loan as an adjustment to yield using the interest method.
Noninterest income totaled $21.8 million for the year ended December 31, 2025 compared to $23.0 million for the year ended December 31, 2024, a decrease of $1.3 million, or 5.4%. This decrease was primarily due to losses on sales and write-downs on foreclosed assets recorded during 2025.
49

The following table presents, for the periods indicated, the major categories of noninterest income:

| Years Ended December 31, |  | Increase (Decrease) |  | Years Ended December 31, |  | Increase (Decrease)
| 2025 |  | 2024 | 2024 |  | 2023
| (In thousands)
Service charges on deposit accounts | $ | 6,282 |  |  | $ | 6,430 |  |  | $ | (148) |  |  | $ | 6,430 |  |  | $ | 6,064 |  |  | $ | 366 |
(Loss) gain on sale/write-down of assets | (302) |  |  | 769 |  |  | (1,071) |  |  | 769 |  |  | 390 |  |  | 379 |
Bank-owned life insurance income | 2,886 |  |  | 2,414 |  |  | 472 |  |  | 2,414 |  |  | 2,178 |  |  | 236 |
Debit card and interchange income | 2,241 |  |  | 2,191 |  |  | 50 |  |  | 2,191 |  |  | 4,996 |  |  | (2,805) |
Other(1) | 10,683 |  |  | 11,242 |  |  | (559) |  |  | 11,242 |  |  | 10,934 |  |  | 308 |
Total noninterest income | $ | 21,790 |  |  | $ | 23,046 |  |  | $ | (1,256) |  |  | $ | 23,046 |  |  | $ | 24,562 |  |  | $ | (1,516) |

(1)Other includes Small Business Investment Company income, FHLB dividends, FRB dividends and wire transfer fees, among other items.
Noninterest Expense
Noninterest expense was $285.5 million for the year ended December 31, 2025 compared to $289.0 million for the year ended December 31, 2024, a decrease of $3.5 million, or 1.2%. The decrease in noninterest expense during 2025 compared to 2024 was primarily due to a $3.2 million decrease in professional fees, a $2.6 million decrease in amortization of intangibles and a $1.4 million decrease in regulatory assessments partially offset by a $3.5 million increase salaries and employee benefits.
The following table presents, for the periods indicated, the major categories of noninterest expense:

| Years Ended December 31, |  | Increase (Decrease) |  | Years Ended December 31, |  | Increase (Decrease)
| 2025 |  | 2024 |  |  | 2024 |  | 2023 |
| (In thousands)
Salaries and employee benefits(1) | $ | 168,807 |  |  | $ | 165,357 |  |  | $ | 3,450 |  |  | $ | 165,357 |  |  | $ | 157,034 |  |  | $ | 8,323 |
Net occupancy and equipment | 17,619 |  |  | 17,864 |  |  | (245) |  |  | 17,864 |  |  | 16,932 |  |  | 932 |
Depreciation | 8,058 |  |  | 7,807 |  |  | 251 |  |  | 7,807 |  |  | 7,584 |  |  | 223 |
Data processing and software amortization | 22,980 |  |  | 21,652 |  |  | 1,328 |  |  | 21,652 |  |  | 19,526 |  |  | 2,126 |
Professional fees | 6,261 |  |  | 9,424 |  |  | (3,163) |  |  | 9,424 |  |  | 7,955 |  |  | 1,469 |
Regulatory assessments and FDIC insurance | 6,187 |  |  | 7,568 |  |  | (1,381) |  |  | 7,568 |  |  | 11,032 |  |  | (3,464) |
Amortization of intangibles | 21,580 |  |  | 24,220 |  |  | (2,640) |  |  | 24,220 |  |  | 26,883 |  |  | (2,663) |
Communications | 3,435 |  |  | 3,418 |  |  | 17 |  |  | 3,418 |  |  | 2,796 |  |  | 622 |
Advertising | 4,707 |  |  | 4,127 |  |  | 580 |  |  | 4,127 |  |  | 3,627 |  |  | 500 |
Acquisition and merger-related expenses | — |  |  | — |  |  | — |  |  | — |  |  | 15,555 |  |  | (15,555) |
Other(2) | 25,836 |  |  | 27,521 |  |  | (1,685) |  |  | 27,521 |  |  | 21,570 |  |  | 5,951 |
Total noninterest expense | $ | 285,470 |  |  | $ | 288,958 |  |  | $ | (3,488) |  |  | $ | 288,958 |  |  | $ | 290,494 |  |  | $ | (1,536) |

(1)Total salaries and employee benefits includes $9.2 million, $10.8 million and $9.9 million in stock-based compensation expense for the years ended December 31, 2025, 2024 and 2023, respectively.
(2)Other includes outside operational services, security, operational losses and other loan expenses, among other items.
Professional fees. Professional fees decreased $3.2 million, or 33.6%, for the year ended December 31, 2025 compared to the year ended December 31, 2024 primarily due to the decrease in consulting fees incurred related to various projects in 2024.
Amortization of intangibles. Amortization of intangibles decreased $2.6 million, or 10.9%, for the year ended December 31, 2025 compared to the year ended December 31, 2024.
50

Regulatory assessments and FDIC insurance. Regulatory assessments and FDIC insurance decreased primarily due to the additional special assessment recorded in 2024 for future payments to the FDIC pursuant to the final FDIC rule implementing a special insurance assessment to recover losses to the Deposit Insurance Fund associated with protecting uninsured depositors following several bank failures in 2023.
Salaries and employee benefits. Salaries and benefits were $168.8 million for the year ended December 31, 2025, an increase of $3.5 million, or 2.1%, compared to the year ended December 31, 2024 primarily due to the increase in full-time equivalent employees.
Efficiency Ratio
The efficiency ratio is a supplemental financial measure utilized in management’s internal evaluation of the Company’s performance. We calculate our efficiency ratio by dividing total noninterest expense, excluding the amortization of core deposits, by the sum of net interest income and noninterest income, excluding net gains and losses on the sale/write-down of assets. An increase in the efficiency ratio indicates that more resources are being utilized to generate the same volume of income, while a decrease indicates a more efficient allocation of resources. The Company’s efficiency ratio increased to 62.28% for the year ended December 31, 2025 compared to 61.53% for the year ended December 31, 2024.
We monitor the efficiency ratio in comparison with changes in our total assets and loans, and we believe that maintaining or reducing the efficiency ratio during periods of growth, demonstrates the scalability of our operating platform. We expect to continue to benefit from our scalable platform in future periods as we continue to monitor overhead expenses necessary to support our growth.
Income Taxes
The amount of federal and state income tax expense is influenced by the amount of pre-tax income, the amount of tax-exempt income and other nondeductible expenses. Income tax expense decreased 16.8%, to $24.9 million for the year ended December 31, 2025 compared with $30.0 million for the same period in 2024. The effective tax rates were 19.5% and 20.7% for the years ended December 31, 2025 and 2024, respectively. The effective income tax rates differed from the U.S. statutory federal income tax rate of 21% during 2025 and 2024 primarily due to the effect of tax-exempt income from securities, loans and life insurance policies, among other things, and their relative proportion to total pre-tax net income.
The One Big Beautiful Bill Act (“OBBBA”) was enacted on July 4, 2025. Among other things, the new law makes permanent certain expiring business tax provisions of the Tax Cuts and Jobs Act (“TCJA”). The OBBBA did not have a significant impact on our financial statements, though some minor operational changes were necessary to support new information reporting requirements. The OBBBA also significantly changes U.S. tax law related to foreign operations and certain tax credits; however, such changes do not currently impact us as the Company does not have foreign operations. As part of the OBBBA, the Company purchased transferrable energy tax credits in December 2025. The credits were purchased at a discount relative to the actual value of the credits obtained and reduced the Company’s income tax expense by $937 thousand in 2025.
Financial Condition
Loan Portfolio
At December 31, 2025, total loans were $7.30 billion, a decrease of $139.3 million, or 1.9%, compared with December 31, 2024 primarily due to decreases in commercial real estate, commercial real estate construction and land development and residential construction loans. Total loans as a percentage of deposits were 80.9% and 81.5% as of December 31, 2025 and December 31, 2024, respectively. Total loans as a percentage of assets were 67.6% and 68.2% as of December 31, 2025 and December 31, 2024, respectively.
51

The following table summarizes our loan portfolio by type of loan as of the dates indicated:

| December 31,
| 2025 |  | 2024 |
| Amount |  | Percent |  | Amount |  | Percent |
| (Dollars in thousands)
Commercial and industrial | $ | 1,476,559 |  |  | 20.2 | % |  | $ | 1,362,260 |  |  | 18.3 | % |
Real estate: |  |  |  |  |  |  |  |
Commercial real estate (including multi-family residential) | 3,766,294 |  |  | 51.6 | % |  | 3,868,218 |  |  | 52.0 | % |
Commercial real estate construction and land development | 720,779 |  |  | 9.9 | % |  | 845,494 |  |  | 11.4 | % |
1-4 family residential (including home equity) | 1,136,227 |  |  | 15.6 | % |  | 1,115,484 |  |  | 15.0 | % |
Residential construction | 124,653 |  |  | 1.7 | % |  | 157,977 |  |  | 2.1 | % |
Consumer and other | 76,079 |  |  | 1.0 | % |  | 90,421 |  |  | 1.2 | % |
Total loans | 7,300,591 |  |  | 100.0 | % |  | 7,439,854 |  |  | 100.0 | % |
Allowance for credit losses on loans | (83,629) |  |  |  |  | (81,058) |  |  |  |
Loans, net | $ | 7,216,962 |  |  |  |  | $ | 7,358,796 |  |  |  |

Our lending activities originate from the efforts of our bankers with an emphasis on lending to individuals, professionals, small- to medium-sized businesses and commercial companies generally located in our market. Our strategy for credit risk management generally includes well-defined, centralized credit policies, uniform underwriting criteria and ongoing risk monitoring and review processes for credit exposures. The strategy generally emphasizes regular credit examinations and management reviews of loans. We have certain lending policies and procedures in place that are designed to maximize loan income within an acceptable level of risk. We maintain an independent loan review department which includes third-party loan review services to review the credit risk on a periodic basis. The internal loan review department focuses on credits not reviewed by the third-party loan reviewer to ensure more complete coverage of credit risk. Results of these reviews are presented to management and the risk committee of the Board of Directors. The loan review process complements and reinforces the risk identification and assessment decisions made by bankers and credit personnel and contained in our policies and procedures. The principal categories of our loan portfolio are discussed below.
Commercial and Industrial. We make commercial and industrial loans in our market area that are underwritten on the basis of the borrower’s ability to service the debt from income. The increased risk in these loans derives from the expectation that commercial and industrial loans generally are serviced principally from the operations of the business, which may not be successful and from the type of collateral securing these loans. Commercial and industrial loans are typically collateralized by general business assets including, among other things, accounts receivable, inventory and equipment and are generally backed by a personal guaranty of the borrower or principal. This collateral may decline in value more rapidly than we anticipate, exposing us to increased credit risk. As a result, commercial and industrial loans require more extensive underwriting and servicing than other types of loans. Our commercial and industrial loan portfolio increased $114.3 million, or 8.4%, to $1.48 billion as of December 31, 2025 compared to $1.36 billion as of December 31, 2024.
Commercial Real Estate (Including Multi-Family Residential). We make loans to finance the purchase or ownership of commercial real estate. As of December 31, 2025, our commercial real estate loans comprised 51.6% of our loan portfolio. Repayment is generally dependent on the successful operations of the property and may be impacted by general economic conditions, including fluctuations in the value of real estate, vacancy rates and unemployment trends. The collateral securing these loans is typically more difficult to liquidate due to the fluctuation of real estate values. As of December 31, 2025 and December 31, 2024, 47.7% and 47.4%, respectively, of our commercial real estate loans were owner-occupied. Our commercial real estate loan portfolio decreased $101.9 million, or 2.6%, to $3.77 billion as of December 31, 2025 from $3.87 billion as of December 31, 2024.
52

The following table summarizes our commercial real estate loan portfolio by type of property securing the loans at December 31, 2025.

Property Type |  | Amount |  | Average Loan Size |  | Percent of Total
|  | (Dollars in thousands) |  |
Warehouse |  | $ | 625,278 |  |  | $ | 703 |  |  | 16.6 | %
Retail |  | 590,076 |  |  | 1,366 |  |  | 15.7 | %
Multi-family |  | 433,553 |  |  | 2,179 |  |  | 11.5 | %
Convenience Store |  | 376,838 |  |  | 1,370 |  |  | 10.0 | %
Office |  | 371,738 |  |  | 812 |  |  | 9.9 | %
Industrial |  | 202,085 |  |  | 2,021 |  |  | 5.4 | %
Restaurant / Bar |  | 151,005 |  |  | 1,110 |  |  | 4.0 | %
Church |  | 133,664 |  |  | 955 |  |  | 3.5 | %
Auto Sales / Repair |  | 113,910 |  |  | 708 |  |  | 3.0 | %
Healthcare |  | 102,375 |  |  | 1,113 |  |  | 2.7 | %
Hotel / Motel |  | 90,901 |  |  | 3,246 |  |  | 2.4 | %
Other |  | 574,871 |  |  | 1,244 |  |  | 15.3 | %
Total |  | $ | 3,766,294 |  |  | 1,182 |  |  | 100.0 | %

As of December 31, 2025, our commercial real estate (including multi-family residential) loan portfolio included $286.3 million of multi-family community development loans with associated tax credits, which fund Texas based projects to promote affordable housing, compared to $233.3 million as of December 31, 2024.
Commercial Real Estate Construction and Land Development. We make commercial real estate construction and land development loans to fund commercial construction, land acquisition and real estate development construction. Construction loans involve additional risks as they often involve the disbursement of funds with the repayment dependent on the ultimate success of the project’s completion. Sources of repayment for these loans may be pre-committed permanent financing or sale of the developed property. The loans in this portfolio are monitored closely by management. Due to uncertainties inherent in estimating construction costs, the market value of the completed project and the effects of governmental regulation on real property, it can be difficult to accurately evaluate the total funds required to complete a project and the related loan to value ratio. As a result of these uncertainties, construction lending often includes the disbursement of substantial funds with repayment dependent, in part, on the success of the ultimate project rather than the ability of a borrower or guarantor to repay the loan. As of December 31, 2025 and December 31, 2024, 14.6% and 13.1%, respectively, of our commercial real estate construction and land development loans were owner-occupied. Our commercial real estate construction and land development loans decreased $124.7 million, or 14.8%, to $720.8 million as of December 31, 2025 compared to $845.5 million as of December 31, 2024.
As of December 31, 2025, our commercial real estate construction and land development loan portfolio included $102.4 million of construction and development loans to support multi-family community development loans with associated tax credits, which fund Texas based projects to promote affordable housing, compared to $137.1 million as of December 31, 2024.
1-4 Family Residential (Including Home Equity). Our residential real estate loans include the origination of 1-4 family residential mortgage loans (including home equity and home improvement loans and home equity lines of credit) collateralized by owner-occupied residential properties located in our market areas. Our residential real estate portfolio (including home equity) increased $20.7 million, or 1.9%, to $1.14 billion as of December 31, 2025 from $1.12 billion as of December 31, 2024.
Residential Construction. We make residential construction loans to home builders and individuals to fund the construction of single-family residences with the understanding that such loans will be repaid from the proceeds of the sale of the homes by builders or with the proceeds of a mortgage loan. These loans are secured by the real property being built and are made based on our assessment of the value of the property on an as-completed basis. Our residential construction loans portfolio decreased $33.3 million, or 21.1%, to $124.7 million as of December 31, 2025 from $158.0 million as of December 31, 2024.
Consumer and Other. Our consumer and other loan portfolio is made up of loans made to individuals for personal purposes and deferred fees and costs on all loan types. Generally, consumer loans entail greater risk than residential real estate loans because they may be unsecured or if secured the value of the collateral, such as an automobile or boat, may be more difficult to assess and
53

more likely to decrease in value than real estate. In such cases, any repossessed collateral for a defaulted consumer loan may not provide an adequate source of repayment for the outstanding loan balance. The remaining deficiency often does not warrant further substantial collection efforts against the borrower beyond obtaining a deficiency judgment. In addition, consumer loan collections are dependent on the borrower’s continuing financial stability, and thus are more likely to be adversely affected by job loss, divorce, illness or personal bankruptcy. Furthermore, the application of various federal and state laws may limit the amount which can be recovered on such loans. Our consumer and other loan portfolio decreased $14.3 million, or 15.9%, to $76.1 million as of December 31, 2025 from $90.4 million as of December 31, 2024.
The contractual maturity ranges of total loans in our loan portfolio and the amount of such loans with predetermined interest rates in each maturity range and the amount of loans with predetermined (fixed) interest rates and floating interest rates in each maturity range, in each case as of the date indicated, are summarized in the following tables:

| December 31, 2025
| Due in One Year or Less |  | Due After One Year Through Five Years |  | Due After Five Years Through Fifteen Years |  | Due After Fifteen Years |  | Total
| (In thousands)
Commercial and industrial | $ | 531,413 |  |  | $ | 707,244 |  |  | $ | 236,266 |  |  | $ | 1,636 |  |  | $ | 1,476,559 |
Real estate: |  |  |  |  |  |  |  |  |
Commercial real estate (including multi-family residential) | 645,230 |  |  | 1,765,625 |  |  | 835,588 |  |  | 519,851 |  |  | 3,766,294 |
Commercial real estate construction and land development | 238,800 |  |  | 392,910 |  |  | 46,865 |  |  | 42,204 |  |  | 720,779 |
1-4 family residential (including home equity) | 100,640 |  |  | 362,496 |  |  | 76,422 |  |  | 596,669 |  |  | 1,136,227 |
Residential construction | 50,308 |  |  | 33,530 |  |  | — |  |  | 40,815 |  |  | 124,653 |
Consumer and other | 48,026 |  |  | 24,450 |  |  | 3,603 |  |  | — |  |  | 76,079 |
Total loans | $ | 1,614,417 |  |  | $ | 3,286,255 |  |  | $ | 1,198,744 |  |  | $ | 1,201,175 |  |  | $ | 7,300,591 |
Loans with predetermined (fixed) interest rates | $ | 951,200 |  |  | $ | 1,899,308 |  |  | $ | 521,226 |  |  | $ | 298,453 |  |  | $ | 3,670,187 |
Loans with floating interest rates | 663,217 |  |  | 1,386,947 |  |  | 677,518 |  |  | 902,722 |  |  | 3,630,404 |
Total loans | $ | 1,614,417 |  |  | $ | 3,286,255 |  |  | $ | 1,198,744 |  |  | $ | 1,201,175 |  |  | $ | 7,300,591 |

54

| December 31, 2024
| Due in One Year or Less |  | Due After One Year Through Five Years |  | Due After Five Years Through Fifteen Years |  | Due After Fifteen Years |  | Total
| (In thousands)
Commercial and industrial | $ | 546,235 |  |  | $ | 606,495 |  |  | $ | 207,760 |  |  | $ | 1,770 |  |  | $ | 1,362,260 |
Real estate: |  |  |  |  |  |  |  |  |
Commercial real estate (including multi-family residential) | 631,933 |  |  | 1,786,270 |  |  | 866,978 |  |  | 583,037 |  |  | 3,868,218 |
Commercial real estate construction and land development | 323,344 |  |  | 385,298 |  |  | 62,632 |  |  | 74,220 |  |  | 845,494 |
1-4 family residential (including home equity) | 95,602 |  |  | 408,627 |  |  | 89,177 |  |  | 522,078 |  |  | 1,115,484 |
Residential construction | 83,759 |  |  | 28,650 |  |  | — |  |  | 45,568 |  |  | 157,977 |
Consumer and other | 66,471 |  |  | 21,839 |  |  | 2,111 |  |  | — |  |  | 90,421 |
Total loans | $ | 1,747,344 |  |  | $ | 3,237,179 |  |  | $ | 1,228,658 |  |  | $ | 1,226,673 |  |  | $ | 7,439,854 |
Loans with predetermined (fixed) interest rates | $ | 883,937 |  |  | $ | 2,254,974 |  |  | $ | 489,744 |  |  | $ | 286,408 |  |  | $ | 3,915,063 |
Loans with floating interest rates | 863,407 |  |  | 982,205 |  |  | 738,914 |  |  | 940,265 |  |  | 3,524,791 |
Total loans | $ | 1,747,344 |  |  | $ | 3,237,179 |  |  | $ | 1,228,658 |  |  | $ | 1,226,673 |  |  | $ | 7,439,854 |

Concentrations of Credit
The vast majority of our lending activity occurs in the Houston and Beaumont MSAs. Our loans are primarily secured by real estate, including commercial and residential construction, owner-occupied and nonowner-occupied and multi-family commercial real estate, raw land and other real estate based loans located in the Houston and Beaumont MSAs. As of December 31, 2025 and 2024, commercial real estate and commercial construction loans represented 61.5% and 63.4%, respectively, of our total loans.
Asset Quality
We have procedures in place to assist us in maintaining the overall quality of our loan portfolio. We have established underwriting guidelines to be followed by our officers and monitor our delinquency levels for any negative or adverse trends.
Nonperforming Assets
Nonperforming assets totaled $60.0 million, or 0.56% of total assets at December 31, 2025, compared to $38.9 million, or 0.36% of total assets at December 31, 2024. Nonaccrual loans consisted of 171 separate credits at December 31, 2025 compared to 101 separate credits at December 31, 2024.
55

The following table presents information regarding nonperforming assets as of the dates indicated:

| December 31,
| 2025 |  | 2024 |
| (Dollars in thousands)
Nonaccrual loans: |  |  |  |
Commercial and industrial | $ | 7,616 |  |  | $ | 8,500 |  |
Real estate: |  |  |  |
Commercial real estate (including multi-family residential) | 29,271 |  |  | 16,459 |  |
Commercial real estate construction and land development | 1,838 |  |  | 3,061 |  |
1-4 family residential (including home equity) | 13,333 |  |  | 9,056 |  |
Residential construction | 448 |  |  | — |  |
Consumer and other | 42 |  |  | 136 |  |
Total nonaccrual loans | 52,548 |  |  | 37,212 |  |
Accruing loans 90 or more days past due | — |  |  | — |  |
Total nonperforming loans | 52,548 |  |  | 37,212 |  |
Foreclosed assets | 7,492 |  |  | 1,734 |  |
Total nonperforming assets | $ | 60,040 |  |  | $ | 38,946 |  |
Troubled loan modifications(1) | $ | 2,085 |  |  | $ | 13,457 |  |
Nonperforming assets to total assets | 0.56 | % |  | 0.36 | % |
Nonperforming loans to total loans | 0.72 | % |  | 0.50 | % |

(1)Troubled loan modifications in the table above represent the balance at the end of the respective period for those loans that are not already presented as a nonperforming loan.
Allowance for Credit Losses
The allowance for credit losses is a valuation allowance that is established through charges to earnings in the form of a provision for (or reversal of) credit losses calculated in accordance with ASC Topic 326- Measurement of Credit Losses on Financial Instruments (“ASC 326”), that is deducted from the amortized cost basis of certain assets to present the net amount expected to be collected. The amount of each allowance account represents management’s best estimate of current expected credit losses on these financial instruments considering available information, from internal and external sources, relevant to assessing exposure to credit loss over the contractual term of the instrument. Relevant available information includes historical credit loss experience, current conditions and reasonable and supportable forecasts. While historical credit loss experience provides the basis for the estimation of expected credit losses, adjustments to historical loss information may be made for differences in current portfolio-specific risk characteristics, environmental conditions or other relevant factors. While management utilizes its best judgment and information available, the ultimate adequacy of our allowance accounts is dependent upon a variety of factors beyond our control, including the performance of our portfolios, the economy, changes in interest rates and the view of the regulatory authorities toward classification of assets. For additional information regarding critical accounting estimates and policies, refer to “Critical Accounting Estimates” in this section, Note 1 – Nature of Operations and Summary of Significant Accounting and Reporting Policies and Note 4 – Loans and Allowance for Credit Losses in the accompanying notes to the consolidated financial statements.
Allowance for Credit Losses on Loans
The allowance for credit losses on loans represents management’s estimates of current expected credit losses in the loan portfolio. Pools of loans with similar risk characteristics are collectively evaluated, while loans that no longer share risk characteristics with loan pools are evaluated individually.
At December 31, 2025, our allowance for credit losses on loans was $83.6 million, or 1.15% of total loans, compared with $81.1 million, or 1.09% of total loans, as of December 31, 2024. The increase in the allowance for credit losses on loans during 2025 primarily resulted from changes to the specific reserves within the allowance for credit losses model primarily due to the increase in nonperforming loans, among other things.
56

The following table presents an analysis of the allowance for credit losses on loans and other related data as of and for the periods indicated:

| December 31,
| 2025 |  | 2024 |
| (Dollars in thousands)
Average loans outstanding | $ | 7,263,152 |  | $ | 7,712,122 |
Gross loans outstanding at end of period | 7,300,591 |  | 7,439,854 |
Allowance for credit losses on loans at beginning of period | 81,058 |  | 91,684 |
Provision for (reversal of) credit losses on loans | 6,334 |  | (3,964) |
Charge-offs: |  |  |  |
Commercial and industrial loans | (3,170) |  | (7,300) |
Real estate: |  |  |  |
Commercial real estate (including multi-family residential) | (590) |  | (786) |
Commercial real estate construction and land development | (462) |  | — |
1-4 family residential (including home equity) | (373) |  | (2) |
Residential construction | — |  | — |
Consumer and other | (145) |  | (171) |
Total charge-offs for all loan types | (4,740) |  | (8,259) |
Recoveries: |  |  |  |
Commercial and industrial loans | 706 |  | 1,449 |
Real estate: |  |  |  |
Commercial real estate (including multi-family residential) | 14 |  | 130 |
Commercial real estate construction and land development | — |  | — |
1-4 family residential (including home equity) | — |  | 6 |
Residential construction | — |  | — |
Consumer and other | 257 |  | 12 |
Total recoveries for all loan types | 977 |  | 1,597 |
Net charge-offs | (3,763) |  | (6,662) |
Allowance for credit losses on loans at end of period | $ | 83,629 |  | $ | 81,058 |
Allowance for credit losses on loans to total loans | 1.15 | % |  | 1.09 | % |
Net charge-offs to average loans | 0.05 | % |  | 0.09 | % |
Allowance for credit losses on loans to nonperforming loans | 159.15 | % |  | 217.83 | % |

Allowance for Credit Losses on Unfunded Commitments
The allowance for credit losses on unfunded commitments estimates current expected credit losses over the contractual period in which there is exposure to credit risk via a contractual obligation to extend credit, unless that obligation is unconditionally cancellable by us. The allowance for credit losses on unfunded commitments is a liability account reported as a component of other liabilities in our consolidated balance sheets and is adjusted as a provision for credit loss expense. The estimate includes consideration of the likelihood that funding will occur and an estimate of expected credit losses on the commitments expected to fund. The estimate of commitments expected to fund is affected by historical analysis looking at utilization rates. The expected credit loss rates applied to the commitments expected to fund are affected by the general valuation allowance utilized for outstanding balances with the same underlying assumptions and drivers. At December 31, 2025, our allowance for credit losses on unfunded commitments was $16.2 million compared to $12.4 million at December 31, 2024.
See Note 4 – Loans and Allowance for Credit Losses in the accompanying notes to the consolidated financial statement fo r additional information regarding how we estimate and evaluate the credit risk in our loan portfolio.
57

Available for Sale Securities
We use our securities portfolio to provide a source of liquidity, to provide an appropriate return on funds invested, to manage interest rate risk and to meet pledging and regulatory capital requirements. As of December 31, 2025, the carrying amount of investment securities totaled $2.20 billion, an increase of $525.4 million, or 31.4%, compared with $1.67 billion as of December 31, 2024. Securities represented 20.3% and 15.3% of total assets as of December 31, 2025 and 2024, respectively.
All of the securities in our securities portfolio are classified a s available for sale. Securities classified as available for sale are measured at fair value in the financial statements with unrealized gains and losses reported, net of tax, as accumulated comprehensive income or loss until realized. Interest earned on securities is included in interest income. The following tables summarize the amortized cost and fair value of the securities in our securities portfolio as of the dates shown:

| December 31, 2025
| Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Fair Value
| (In thousands)
Available for Sale |  |  |  |  |  |  |
U.S. government and agency securities | $ | 394,361 |  |  | $ | 497 |  |  | $ | (2,383) |  |  | $ | 392,475 |
Municipal securities | 218,143 |  |  | 627 |  |  | (22,569) |  |  | 196,201 |
Agency mortgage-backed pass-through securities | 831,815 |  |  | 5,548 |  |  | (29,377) |  |  | 807,986 |
Agency collateralized mortgage obligations | 737,627 |  |  | 3,375 |  |  | (43,937) |  |  | 697,065 |
Corporate bonds and other | 108,820 |  |  | 564 |  |  | (4,652) |  |  | 104,732 |
Total | $ | 2,290,766 |  |  | $ | 10,611 |  |  | $ | (102,918) |  |  | $ | 2,198,459 |

| December 31, 2024
| Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Fair Value
| (In thousands)
Available for Sale |  |  |  |  |  |  |
U.S. government and agency securities | $ | 198,962 |  |  | $ | 348 |  |  | $ | (5,707) |  |  | $ | 193,603 |
Municipal securities | 219,545 |  |  | 367 |  |  | (28,459) |  |  | 191,453 |
Agency mortgage-backed pass-through securities | 566,719 |  |  | 3 |  |  | (45,346) |  |  | 521,376 |
Agency collateralized mortgage obligations | 730,861 |  |  | 830 |  |  | (71,328) |  |  | 660,363 |
Corporate bonds and other | 115,601 |  |  | 181 |  |  | (9,561) |  |  | 106,221 |
Total | $ | 1,831,688 |  |  | $ | 1,729 |  |  | $ | (160,401) |  |  | $ | 1,673,016 |

Investment securities classified as available for sale or held to maturity are evaluated for expected credit losses under ASC Topic 326. See Note 3 – Securities in the accompanying notes to the consolidated financial statements for additional information. Management does not have the intent to sell any of these securities and believes that it is more likely than not that the Company will not have to sell any such securities before a recovery of cost. The fair value is expected to recover as the securities approach their maturity date or repricing date or if market yields for such investments decline. Accordingly, as of December 31, 2025, management believes that the unrealized losses detailed in the previous table are due to noncredit-related factors, including changes in interest rates and other market conditions, and therefore, no losses have been recognized in the Company’s consolidated statements of income.
58

The following table summarizes the contractual maturity of securities and their weighted average yields as of the dates indicated. The contractual maturity of a mortgage-backed security is the date at which the last underlying mortgage matures. Available for sale securities are shown at amortized cost. For purposes of the tables below, the yields on municipal securities were calculated on a tax equivalent basis.

| December 31, 2025
| Within One Year |  | After One Year but Within Five Years |  | After Five Years but Within Ten Years |  | After Ten Years |  | Total
| Amount |  | Yield |  | Amount |  | Yield |  | Amount |  | Yield |  | Amount |  | Yield |  | Total |  | Yield
| (Dollars in thousands)
Available for Sale |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. government and agency securities | $ | 298,792 |  |  | 3.59 | % |  | $ | 2,571 |  |  | 5.86 | % |  | $ | 2,229 |  |  | 3.78 | % |  | $ | 90,769 |  |  | 4.51 | % |  | $ | 394,361 |  |  | 3.82 | %
Municipal securities | — |  |  | 0.00 | % |  | 14,660 |  |  | 2.76 | % |  | 76,295 |  |  | 2.34 | % |  | 127,188 |  |  | 2.50 | % |  | 218,143 |  |  | 2.46 | %
Agency mortgage-backed pass-through securities | 14 |  |  | 2.74 | % |  | 8,684 |  |  | 4.05 | % |  | 10,606 |  |  | 3.37 | % |  | 812,511 |  |  | 4.29 | % |  | 831,815 |  |  | 4.28 | %
Agency collateralized mortgage obligations | 4,991 |  |  | 2.80 | % |  | 34,743 |  |  | 3.65 | % |  | 35,170 |  |  | 4.33 | % |  | 662,723 |  |  | 3.37 | % |  | 737,627 |  |  | 3.43 | %
Corporate bonds and other | 1,145 |  |  | 3.07 | % |  | — |  |  | 0.00 | % |  | 71,832 |  |  | 5.65 | % |  | 35,843 |  |  | 2.81 | % |  | 108,820 |  |  | 4.69 | %
Total | $ | 304,942 |  |  | 3.57 | % |  | $ | 60,658 |  |  | 3.59 | % |  | $ | 196,132 |  |  | 3.98 | % |  | $ | 1,729,034 |  |  | 3.79 | % |  | $ | 2,290,766 |  |  | 3.77 | %

| December 31, 2024
| Within One Year |  | After One Year but Within Five Years |  | After Five Years but Within Ten Years |  | After Ten Years |  | Total
| Amount |  | Yield |  | Amount |  | Yield |  | Amount |  | Yield |  | Amount |  | Yield |  | Total |  | Yield
| (Dollars in thousands)
Available for Sale |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. government and agency securities | $ | — |  |  | 0.00 | % |  | $ | 78,658 |  |  | 1.31 | % |  | $ | 3,141 |  |  | 3.77 | % |  | $ | 117,163 |  |  | 4.66 | % |  | $ | 198,962 |  |  | 3.32 | %
Municipal securities | — |  |  | 0.00 | % |  | 3,314 |  |  | 4.76 | % |  | 74,337 |  |  | 2.44 | % |  | 141,894 |  |  | 2.34 | % |  | 219,545 |  |  | 2.41 | %
Agency mortgage-backed pass-through securities | 3,285 |  |  | 2.47 | % |  | 4,362 |  |  | 3.71 | % |  | 7,936 |  |  | 4.53 | % |  | 551,136 |  |  | 3.83 | % |  | 566,719 |  |  | 3.83 | %
Agency collateralized mortgage obligations | — |  |  | 0.00 | % |  | 30,539 |  |  | 3.44 | % |  | 48,589 |  |  | 4.81 | % |  | 651,733 |  |  | 3.23 | % |  | 730,861 |  |  | 3.34 | %
Corporate bonds and other | 4,110 |  |  | 4.98 | % |  | 3,000 |  |  | 7.99 | % |  | 62,000 |  |  | 5.42 | % |  | 46,491 |  |  | 2.96 | % |  | 115,601 |  |  | 4.48 | %
Total | $ | 7,395 |  |  | 3.87 | % |  | $ | 119,873 |  |  | 2.20 | % |  | $ | 196,003 |  |  | 4.07 | % |  | $ | 1,508,417 |  |  | 3.47 | % |  | $ | 1,831,688 |  |  | 3.45 | %

The contractual maturity of mortgage-backed securities and collateralized mortgage obligations is not a reliable indicator of their expected life because borrowers may have the right to prepay their obligations. Mortgage-backed securities and collateralized mortgage obligations are typically issued with stated principal amounts and are backed by pools of mortgage loans with varying maturities. The term of the underlying mortgages and loans may vary significantly due to the ability of a borrower to prepay and, in particular, monthly pay downs on mortgage-backed securities tend to cause the average life of the securities to be much different than the stated contractual maturity. During a period of increasing interest rates, fixed rate mortgage-backed securities do not tend to experience heavy prepayments of principal and, consequently, the average life of this security will be lengthened. If interest rates begin to fall, prepayments may increase, thereby shortening the estimated life of the security.
As of December 31, 2025 and 2024, we did not own securities of any one issuer (other than the U.S. government and its agencies or sponsored entities) for which the aggregate adjusted cost exceeded 10% of our consolidated shareholders’ equity.
The average yield of our securities portfolio was 3.75% for the year ended December 31, 2025 compared with 3.34% for the year ended December 31, 2024. The increase in average yield during 2025 compared to 2024 was primarily due to security purchases during the year increasing the mix of higher-yielding securities within the portfolio.
59

Goodwill and Core Deposit Intangibles
Goodwill was $497.3 million as of both December 31, 2025 and 2024. Goodwill resulting from business combinations represents the excess of the consideration paid over the fair value of the net assets acquired. Goodwill is assessed annually for impairment and on an interim basis if an event occurs or circumstances change that would indicate that the carrying amount of the asset may not be recoverable.
Core deposit intangibles, net, as of December 31, 2025 was $71.0 million compared to $92.5 million as of December 31, 2024. Core deposit intangibles are amortized using the straight-line or an accelerated method over the estimated useful life of seven to ten years.
Deposits
Our lending and investing activities are primarily funded by deposits. We offer a variety of deposit accounts having a wide range of interest rates and terms including demand, savings, money market and certificates and other time accounts. We rely primarily on convenient locations, personalized service and our customer relationships to attract and retain these deposits. We seek customers that will engage in both a lending and deposit relationship with us.
Total deposits at December 31, 2025 were $9.02 billion, a decrease of $106.9 million, or 1.2%, compared with $9.13 billion at December 31, 2024 primarily driven by seasonality, industry-wide pressures and the maintenance of pricing discipline in an intensely competitive market for deposits. Noninterest-bearing deposits at December 31, 2025 were $3.41 billion, a decrease of $168.3 million, or 4.7%, compared with $3.58 billion at December 31, 2024. Interest-bearing deposits at December 31, 2025 were $5.61 billion, an increase of $61.4 million, or 1.1%, compared with $5.55 billion at December 31, 2024. Our ratio of noninterest-bearing deposits to total deposits was 37.8% and 39.2% for the years ended December 31, 2025 and 2024, respectively. Deposits include fully collateralized public funds of $1.11 billion and $1.44 billion at December 31, 2025 and 2024, respectively.
The following table presents the daily average balances and weighted-average rates paid on deposits for the periods indicated:

| Years Ended December 31,
| 2025 |  | 2024
| Average Balance |  | Average Rate |  | Average Balance |  | Average Rate
| (Dollars in thousands)
Interest-bearing demand | $ | 1,952,032 |  |  | 2.79% |  | $ | 1,618,212 |  |  | 2.98%
Money market and savings | 2,407,951 |  |  | 2.75% |  | 2,236,678 |  |  | 2.90%
Certificates and other time | 1,196,586 |  |  | 3.87% |  | 1,574,598 |  |  | 4.37%
Total interest-bearing deposits | 5,556,569 |  |  | 3.00% |  | 5,429,488 |  |  | 3.35%
Noninterest-bearing deposits | 3,236,602 |  |  | — |  | 3,369,931 |  |  | —
Total deposits | $ | 8,793,171 |  |  | 1.90% |  | $ | 8,799,419 |  |  | 2.07%

The following table sets forth the amount of time deposits that met or exceeded the FDIC insurance limit of $250 thousand by time remaining until maturity at December 31, 2025 (in thousands):

Three months or less | $ | 234,268 |
Over three months through six months | 193,417 |
Over six months through 12 months | 188,229 |
Over 12 months | 22,084 |
Total | $ | 637,998 |

Borrowings
The Company has an available line of credit with the FHLB, which allows the Company to borrow on a collateralized basis. FHLB advances are used to manage liquidity as needed. The advances are secured by blanket liens on certain loans. Maturing advances are replaced by drawing on available cash, making additional borrowings or through increased customer deposits. At
60

December 31, 2025, the Company had total borrowing capacity of $3.17 billion of which $997.1 million was available under the agreement and $2.17 billion was outstanding pursuant to FHLB letters of credit. At December 31, 2025 and 2024, the Company had no FHLB advances outstanding.
At December 31, 2025, the Company had FHLB letters of credit pledged as collateral for public and other deposits of state and local government agencies expire in the following periods (in thousands):

2026 | $ | 1,618,496 |
2027 | 366,000 |
2028 | 56,000 |
2029 | 77,000 |
Thereafter | 55,000 |
Total | $ | 2,172,496 |

Subordinated Debt
Junior Subordinated Debentures
In connection with the acquisition of F&M Bancshares, Inc. in 2015, the Company assumed Farmers & Merchants Capital Trust II and Farmers & Merchants Capital Trust III. Each of the trusts is a capital or statutory business trust organized for the sole purpose of issuing trust securities and investing the proceeds in the Company’s junior subordinated debentures. The preferred trust securities of each trust represent preferred beneficial interests in the assets of the respective trusts and are subject to mandatory redemption upon payment of the junior subordinated debentures held by the trust. The common securities of each trust are wholly owned by the Company. Each trust’s ability to pay amounts due on the trust preferred securities is solely dependent upon the Company making payment on the related junior subordinated debentures. The debentures, which are the only assets of each trust, are subordinate and junior in right of payment to all of the Company’s present and future senior indebtedness. The Company has fully and unconditionally guaranteed each trust’s obligations under the trust securities issued by each trust to the extent not paid or made by such trust, provided such trust has funds available for such obligations. The trust preferred securities bear a floating rate of interest equal to 3-Month SOFR plus a spread adjustment. The junior subordinated debentures are included in Tier 1 capital under current regulatory guidelines and interpretations. Under the provisions of each issue of the debentures, the Company has the right to defer payment of interest on the debentures at any time, or from time to time, for periods not exceeding five years. If interest payments on either issue of the debentures are deferred, the distributions on the applicable trust preferred securities and common securities will also be deferred.
A summary of pertinent information related to the Company’s issuances of junior subordinated debentures outstanding at December 31, 2025 is set forth in the table below:

Description |  | Issuance Date |  | Trust Preferred Securities Outstanding |  | Junior Subordinated Debt Owed to Trusts |  | Maturity Date(1)
|  |  |  | (Dollars in thousands) |  |
Farmers & Merchants Capital Trust II |  | November 13, 2003 |  | $ | 7,500 |  |  | $ | 7,732 |  |  | November 8, 2033
Farmers & Merchants Capital Trust III |  | June 30, 2005 |  | 3,500 |  |  | 3,609 |  |  | July 7, 2035
|  |  |  |  |  | $ | 11,341 |  |  |

(1) All debentures were callable at December 31, 2025.
Subordinated Notes
In December 2017, the Bank issued $40.0 million aggregate principal amount of Fixed-to-Floating Rate Subordinated Notes (the “Bank Notes”) due December 15, 2027 and bore a floating rate of interest equal to 3-Month SOFR plus a 3.03% spread adjustment. In December 2024, the Bank redeemed the Bank Notes at a redemption price equal to 100% of the principal amount of Bank Notes plus accrued and unpaid interest.
61

In September 2019, Stellar issued $60.0 million aggregate principal amount of Fixed-to-Floating Rate Subordinated Notes (the “Company Notes”) due October 1, 2029. As of December 31, 2025, the Company Notes bore at a floating rate equal to 3-Month SOFR plus 3.13% and a spread adjustment for each quarterly interest period, payable quarterly in arrears on January 1, April 1, July 1 and October 1 of each year. On October 1, 2025, the Company redeemed $30.0 million of the Company Notes. The redemption price for the Company Notes was equal to 100% of the principal amount of the Company Notes redeemed, plus $1.2 million for accrued and unpaid interest up to, but excluding, the redemption date. Any future redemptions will be at a redemption price equal to 100% of the principal amount of Company Notes being redeemed, plus accrued and unpaid interest, and will be subject to, and require, prior regulatory approval. The Company Notes are not subject to redemption at the option of the holders.
Credit Agreement
On December 13, 2024, the Company renewed its loan agreement with another financial institution (the “Loan Agreement”), that provides for a $75.0 million revolving line of credit. At December 31, 2025, there were no outstanding borrowings on this line of credit and no draws were taken on this line of credit during 2025 or 2024. Interest accrues on outstanding borrowings at a per annum rate equal to 3-month SOFR plus 2.75% calculated in accordance with the terms of the revolving promissory note and payable quarterly through the first 24 months. The entire outstanding balance and unpaid interest is payable in full on December 13, 2033, the maturity date. The Company may prepay the principal amount of the line of credit without premium or penalty. The obligations of the Company under the Loan Agreement are secured by a pledge of all of the issued and outstanding shares of capital stock of the Bank.
Covenants made under the Loan Agreement include, among other things, while there are obligations outstanding under Loan Agreement, the Company shall maintain a cash flow to debt service (as defined in the Loan Agreement) of not less than 1.25, the Bank’s Texas Ratio (as defined in the Loan Agreement) not to exceed 20.0%, the Bank shall maintain a Tier 1 Leverage Ratio (as defined under the Loan Agreement) of at least 8.0% and includes restrictions on the ability of the Company and its subsidiaries to incur certain additional debt. As of December 31, 2025, the Company believes it was in compliance with all such debt covenants and had not been made aware of any noncompliance by the lender.
Liquidity and Capital Resources
Liquidity
Liquidity is the measure of our ability to meet the cash flow requirements of depositors and borrowers, while at the same time meeting our operating, capital and strategic cash flow needs and to maintain reserve requirements to operate on an ongoing basis and manage unexpected events, all at a reasonable cost. During the years ended December 31, 2025 and 2024, our liquidity needs have primarily been met by deposits, borrowed funds and securities. The Bank has access to purchased funds from correspondent banks, the Federal Reserve discount window and advances from the FHLB, on a collateralized basis, are available under a security and pledge agreement to take advantage of investment opportunities.
Liquidity risk management is an important element in our asset/liability management process. Our liquidity position is continuously monitored and adjustments are made to the balance between sources and uses of funds as deemed appropriate. We regularly model liquidity stress scenarios to assess potential liquidity outflows or funding problems resulting from economic disruptions, volatility in the financial markets, unexpected credit events or other significant occurrences deemed problematic by management. Liquidity stress scenarios are incorporated into our contingency funding plan, which provides the basis for the identification of our liquidity needs.
Our largest source of funds is deposits and our largest use of funds is loans. Our average deposits decreased $6.2 million, or 0.1%, for the year ended December 31, 2025 compared to the year ended December 31, 2024. Our average loans decreased $449.0 million, or 5.8%, for the year ended December 31, 2025 compared to the year ended December 31, 2024. We predominantly invest excess deposits in Federal Reserve Bank of Dallas balances, securities, interest-bearing deposits at other banks or other short-term liquid investments until the funds are needed to fund loan growth. Our securities portfolio had a weighted average life of 6.4 years and 7.2 years at December 31, 2025 and 2024, respectively.
62

The following table illustrates, during the periods presented, the mix of our funding sources and the average assets in which those funds are invested as a percentage of our average total assets for the periods indicated.

| Years Ended December 31,
| 2025 |  | 2024
Sources of Funds: |  |  |
Deposits: |  |  |
Noninterest-bearing | 30.6 | % |  | 31.7 | %
Interest-bearing | 52.5 | % |  | 51.0 | %
Borrowed funds | 0.2 | % |  | 0.7 | %
Subordinated debt | 0.6 | % |  | 1.0 | %
Other liabilities | 0.8 | % |  | 0.9 | %
Shareholders’ equity | 15.3 | % |  | 14.7 | %
Total | 100.0 | % |  | 100.0 | %
Uses of Funds: |  |  |
Loans | 68.6 | % |  | 72.4 | %
Securities | 17.3 | % |  | 15.0 | %
Deposits in other financial institutions | 4.6 | % |  | 3.1 | %
Noninterest-earning assets | 9.5 | % |  | 9.5 | %
Total | 100.0 | % |  | 100.0 | %
Average noninterest-bearing deposits to average deposits | 36.8 | % |  | 38.3 | %
Average loans to average deposits | 82.6 | % |  | 87.6 | %

As of December 31, 2025 and 2024, we had outstanding commitments to extend credit of $2.10 billion and $1.70 billion, respectively, and commitments associated with outstanding letters of credit of $65.6 million and $43.6 million, respectively. Since commitments associated with commitments to extend credit and outstanding letters of credit may expire unused, the total outstanding may not necessarily reflect the actual future cash funding requirements. At December 31, 2025 and 2024, we had FHLB letters of credit in the amount of $2.17 billion and $2.10 billion, respectively, pledged as collateral for public and other deposits of state and local government agencies. See Note 9 – Borrowings and Borrowing Capacity to the accompanying consolidated financial statements.
Total immediate contingent funding sources, including unrestricted cash, available-for-sale securities that are not pledged and total available borrowing capacity was $3.95 billion, or 43.7%, of total deposits at December 31, 2025. Estimated uninsured deposits net of collateralized deposits were 45.7% of total deposits at December 31, 2025. Including policy-driven capacity for brokered deposits, the Bank would have been able to add approximately $2.26 billion to its contingent sources of liquidity, bringing total contingent funding sources to approximately $6.2 billion, or 68.8%, of deposits at December 31, 2025.
As of December 31, 2025 and 2024, we had no exposure to future cash requirements associated with known uncertainties or capital expenditures of a material nature.
In the ordinary course of business, we have entered into contractual obligations and have made other commitments to make future payments. Refer to the accompanying notes to accompanying consolidated financial statements for the expected timing of such payments as of December 31, 2025. These include payments related to (1) operating leases (Note 5 – Premises and Equipment and Leases), (2) time deposits with stated maturity dates (Note 7 – Deposits), (3) borrowings (Note 9 – Borrowings and Borrowing Capacity) and (4) commitments to extend credit and standby letters of credit (Note 13 – Off-Balance Sheet Arrangements, Commitments and Contingencies).
Commitments to Extend Credit. We enter into contractual commitments to extend credit, normally with fixed expiration dates or termination clauses, at specified rates and for specific purposes. Substantially all of our commitments to extend credit are contingent upon customers maintaining specific credit standards at the time of loan funding. We minimize our exposure to loss under these commitments by subjecting them to credit approval and monitoring procedures. The amount and type of collateral obtained, if considered necessary by us, upon extension of credit, is based on management’s credit evaluation of the customer. Management assesses the credit risk associated with certain commitments to extend credit in determining the level of the allowance for credit losses.
63

Standby Letters of Credit. Standby letters of credit are written conditional commitments issued by the Company to guarantee the performance of a customer to a third-party. In the event of nonperformance by the customer, the Company has the rights to the underlying collateral. The credit risk to the Company in issuing letters of credit is substantially similar to that involved in extending loan facilities to its customers. The Company’s policy for obtaining collateral, and the nature of such collateral, is substantially similar to that involved in making commitments to extend credit.
Capital Resources
Capital management consists of providing equity to support our current and future operations. We are subject to capital adequacy requirements imposed by the Federal Reserve. The Federal Reserve has adopted risk-based capital requirements for assessing bank holding company and bank capital adequacy. These standards define capital and establish minimum capital requirements in relation to assets and off-balance sheet exposure, adjusted for credit risk. The risk-based capital standards currently in effect are designed to make regulatory capital requirements more sensitive to differences in risk profiles among bank holding companies and banks, to account for off-balance sheet exposure and to minimize disincentives for holding liquid assets. Assets and off-balance sheet items are assigned to broad risk categories, each with appropriate relative risk weights. The resulting capital ratios represent capital as a percentage of total risk-weighted assets and off-balance sheet items.
Under current guidelines, the minimum ratio of total capital to risk-weighted assets (which are primarily the credit risk equivalents of balance sheet assets and certain off-balance sheet items such as standby letters of credit) is 8.0%. At least half of total capital must be composed of Tier 1 capital, which includes common shareholders’ equity (including retained earnings), less goodwill, other disallowed intangible assets and disallowed deferred tax assets, among other items. The Federal Reserve also has adopted a minimum leverage ratio, requiring Tier 1 capital of at least 4.0% of average quarterly total consolidated assets, net of goodwill and certain other intangible assets, for all but the most highly rated bank holding companies. The federal banking agencies have also established risk-based and leverage capital guidelines that FDIC-insured depository institutions are required to meet. These regulations are generally similar to those established by the Federal Reserve for bank holding companies.
Under the Federal Deposit Insurance Act, the federal bank regulatory agencies must take “prompt corrective action” against undercapitalized U.S. depository institutions. U.S. depository institutions are assigned one of five capital categories: “well- capitalized,” “adequately capitalized,” “undercapitalized,” “significantly undercapitalized” and “critically undercapitalized,” and are subjected to different regulation corresponding to the capital category within which the institution falls. A depository institution is deemed to be “well capitalized” if the banking institution has a total risk-based capital ratio of 10.0% or greater, a Tier 1 risk-based capital ratio of 8.0% or greater, a common equity Tier 1 capital ratio of 6.5% and a leverage ratio of 5.0% or greater, and the institution is not subject to an order, written agreement, capital directive or prompt corrective action directive to meet and maintain a specific level for any capital measure. Under certain circumstances, a well-capitalized, adequately capitalized or undercapitalized institution may be treated as if the institution were in the next lower capital category.
Failure to meet capital guidelines could subject the institution to a variety of enforcement remedies by federal bank regulatory agencies, including termination of deposit insurance by the FDIC, restrictions on certain business activities and appointment of the FDIC as conservator or receiver. As of December 31, 2025 and 2024, the Bank was well capitalized. Total shareholders' equity was $1.67 billion at December 31, 2025 compared with $1.61 billion at December 31, 2024, an increase of $60.8 million. This increase was primarily due to net income of $102.9 million, partially offset by dividends paid of $29.3 million, or $0.57 per common share, during 2025.
64

The following table provides a comparison of the Company’s and the Bank’s leverage and risk-weighted capital ratios as of December 31, 2025 to the minimum and well-capitalized regulatory standards, as well as with the capital conservation buffer:

| Actual Ratio |  | Minimum Required for Capital Adequacy Purposes |  | Minimum Required Plus Capital Conservation Buffer |  | To Be Categorized As Well Capitalized Under Prompt Corrective Action Provisions
STELLAR BANCORP, INC. |  |  |  |  |  |  |
(Consolidated) |  |  |  |  |  |  |
Total Capital (to risk weighted assets) | 15.73% |  | 8.00% |  | 10.50% |  | N/A
Common Equity Tier 1 Capital (to risk weighted assets) | 14.18% |  | 4.50% |  | 7.00% |  | N/A
Tier 1 Capital (to risk weighted assets) | 14.31% |  | 6.00% |  | 8.50% |  | N/A
Tier 1 Leverage (to average tangible assets) | 11.52% |  | 4.00% |  | 4.00% |  | N/A
STELLAR BANK |  |  |  |  |  |  |
Total Capital (to risk weighted assets) | 15.03% |  | 8.00% |  | 10.50% |  | 10.00%
Common Equity Tier 1 Capital (to risk weighted assets) | 13.83% |  | 4.50% |  | 7.00% |  | 6.50%
Tier 1 Capital (to risk weighted assets) | 13.83% |  | 6.00% |  | 8.50% |  | 8.00%
Tier 1 Leverage (to average tangible assets) | 11.14% |  | 4.00% |  | 4.00% |  | 5.00%

Asset/Liability Management and Interest Rate Risk
Our asset liability and interest rate risk policy provides management with guidelines for effective balance sheet management. We have established a measurement system for monitoring our net interest rate sensitivity position. We seek to manage our sensitivity position within our established guidelines.
As a financial institution, a component of the market risk that we face is interest rate volatility. Fluctuations in interest rates will ultimately impact both the level of income and expense recorded on most of our assets and liabilities, and the market value of all interest-earning assets and interest-bearing liabilities, other than those which have a short term to maturity. Interest rate risk is the potential for economic losses due to future interest rate changes. These economic losses can be reflected as a loss of future net interest income and/or a loss of current fair market values. The objective is to measure the effect on net interest income and to adjust the balance sheet to minimize the inherent risk while at the same time maximizing income.
Based upon the nature of our operations, we are not subject to foreign exchange rate or commodity price risk. We do not own any trading assets. We manage our exposure to interest rates by structuring our balance sheet in the ordinary course of a community banking business. The Company enters into interest rate swaps as an accommodation to customers.
Our exposure to interest rate risk is managed by our Asset Liability Committee (“ALCO”). The ALCO formulates strategies based on appropriate levels of interest rate risk. In determining the appropriate level of interest rate risk, the ALCO considers the impact on earnings and capital of the current outlook on interest rates, potential changes in interest rates, regional economies, liquidity, business strategies and other factors. The ALCO meets regularly to review, among other things, the sensitivity of assets and liabilities to interest rate changes, the book and market values of assets and liabilities, unrealized gains and losses, purchase and sale activities, commitments to originate loans and the maturities of investments and borrowings. Additionally, the ALCO reviews liquidity, cash flow flexibility, maturities of deposits and consumer and commercial deposit activity.
We use an interest rate risk simulation model and shock analysis to test the interest rate sensitivity of net interest income and the balance sheet, respectively. Where applicable, instruments on the balance sheet are modeled at the instrument level, incorporating all relevant attributes such as next reset date, reset frequency and call dates, as well as prepayment assumptions for loans and securities and decay rates for nonmaturity deposits. Assumptions based on past experience are incorporated into the model for nonmaturity deposit account decay rates. The assumptions used are inherently uncertain and, as a result, the model cannot precisely measure future net interest income or precisely predict the impact of fluctuations in market interest rates on net interest income. Actual results will
65

differ from the model’s simulated results due to timing, magnitude and frequency of interest rate changes as well as changes in market conditions and the application and timing of various management strategies.
We utilize static balance sheet rate shocks to estimate the potential impact on net interest income of changes in interest rates under various rate scenarios. This analysis estimates a percentage of change in the metric from the stable rate base scenario versus alternative scenarios of rising and falling market interest rates by instantaneously shocking a static balance sheet.
The following table summarizes the simulated change in the economic value of equity and net interest income over a 12-month horizon as of the dates indicated:

Change in Interest Rates (Basis Points) |  | Percent Change in Net Interest Income |  | Percent Change in Economic Value of Equity
| December 31, 2025 |  | December 31, 2024 |  | December 31, 2025 |  | December 31, 2024
+300 |  | 9.2% |  | 3.1% |  | (1.0)% |  | (4.9)%
+200 |  | 6.5% |  | 2.4% |  | 1.5% |  | (1.8)%
+100 |  | 3.4% |  | 1.4% |  | 1.8% |  | (0.2)%
Base |  | 0.0% |  | 0.0% |  | 0.0% |  | 0.0%
-100 |  | (3.2)% |  | (2.5)% |  | (4.0)% |  | (2.8)%
-200 |  | (5.9)% |  | (5.2)% |  | (10.5)% |  | (7.9)%
-300 |  | (7.6)% |  | (8.6)% |  | (19.5)% |  | (15.1)%

These results are primarily due to the size of our cash position, the size and duration of our loan and securities portfolio, the duration of our borrowings and the expected behavior of demand, money market and savings deposits during such rate fluctuations. During 2025, changes in our overall interest rate profile were driven by the increase in certain interest-bearing deposits and securities along with a decrease in noninterest-bearing deposits, loans and cash and cash equivalents.
ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
For information regarding the market risk of the Company’s financial instruments, see “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operation—Financial Condition—Asset/Liability Management and Interest Rate Risk.” Our principal market risk exposure is to changes in interest rates.
ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA
The financial statements, the reports thereon, the notes thereto and supplementary data commence on page 72 of this Annual Report on Form 10-K.
ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE
None.
ITEM 9A. CONTROLS AND PROCEDURES
Evaluation of disclosure controls and procedures. As of the end of the period covered by this Annual Report on Form 10-K, the Company carried out an evaluation, under the supervision and with the participation of its management, including its Chief Executive Officer and Chief Financial Officer, of the effectiveness of the design and operation of its disclosure controls and procedures. In designing and evaluating the disclosure controls and procedures, management recognizes that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving the desired control objectives, and management was required to apply judgment in evaluating its controls and procedures. Based on this evaluation, the Company’s Chief Executive Officer and Chief Financial Officer concluded that the Company’s disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act) were effective as of the end of the period covered by this report. See Exhibits 31.1 and 31.2 for the Certification statements issued by the Company’s Chief Executive Officer and Chief Financial Officer, respectively.
66

Table of contents
Changes in Internal Control over Financial Reporting. There were no changes in the Company’s internal control over financial reporting (as such term is defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) during the year ended December 31, 2025, that have materially affected, or are reasonably likely to materially affect, the Company’s internal control over financial reporting.
Reporting on Management’s Assessment of Internal Controls over Financial Reporting. Management of the Company is responsible for establishing and maintaining adequate internal control over financial reporting (as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act). The Company’s internal control system is a process designed to provide reasonable assurance regarding the preparation and fair presentation of published financial statements in accordance with generally accepted accounting standards (“GAAP”). All internal control systems, no matter how well designed, have inherent limitations and can only provide reasonable assurance with respect to financial reporting.
As of December 31, 2025, management assessed the effectiveness of the Company’s internal control over financial reporting based on the criteria for effective internal control over financial reporting established in “Internal Control-Integrated Framework,” issued by the Committee of Sponsoring Organizations of the Treadway Commission in 2013. Based on this assessment, management determined that the Company maintained effective internal control over financial reporting as of December 31, 2025.
Crowe LLP, (U.S. PCAOB Auditor Firm I.D.: 173), the independent registered public accounting firm that audited the consolidated financial statements of the Company included in this Annual Report on Form 10-K, has issued an attestation report on the effectiveness of the Company’s internal control over financial reporting as of December 31, 2025. Their report is included in “Part IV, Item 15. Exhibits, Financial Statement Schedules” under the heading “Report of Independent Registered Public Accounting Firm.”
ITEM 9B. OTHER INFORMATION
None.
ITEM 9C. DISCLOSURE REGARDING FOREIGN JURISDICTIONS THAT PREVENT INSPECTIONS.
Not applicable.
PART III
ITEM 10. DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE
The information required by this Item is incorporated herein by reference to the Company’s definitive Proxy Statement for its 2026 Annual Meeting of Shareholders (the “2026 Proxy Statement”) to be filed with the SEC pursuant to Regulation 14A under the Exchange Act within 120 days of the Company’s fiscal year end.
ITEM 11. EXECUTIVE COMPENSATION
The information required by this Item is incorporated herein by reference to the 2026 Proxy Statement.
ITEM 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND RELATED SHAREHOLDER MATTERS
Certain information required by this Item is included under “Securities Authorized for Issuance under Equity Compensation Plans” in Part II, Item 5 of this Annual Report on Form 10-K. The other information required by this Item is incorporated herein by reference to the 2026 Proxy Statement.
ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS, AND DIRECTOR INDEPENDENCE
The information required by this Item is incorporated herein by reference to the 2026 Proxy Statement.
67

Table of contents
ITEM 14. PRINCIPAL ACCOUNTING FEES AND SERVICES
The information required by this Item is incorporated herein by reference to the 2026 Proxy Statement.
PART IV
ITEM 15. EXHIBITS AND FINANCIAL STATEMENT SCHEDULES
(a) The following documents are filed as part of this Annual Report on Form 10-K:
1. Consolidated Financial Statements. Reference is made to the Consolidated Financial Statements, the report thereon and the notes thereto commencing at page 72 of this Annual Report on Form 10-K. Set forth below is a list of such Consolidated Financial Statements:
Report of Independent Registered Public Accounting Firm (Crowe LLP, Firm ID: 173)
Consolidated Balance Sheets as of December 31, 2025 and 2024
Consolidated Statements of Income for the Years Ended December 31, 2025, 2024 and 2023
Consolidated Statements of Comprehensive Income for the Years Ended December 31, 2025, 2024 and 2023
Consolidated Statements of Changes in Shareholders’ Equity for the Years Ended December 31, 2025, 2024 and 2023
Consolidated Statements of Cash Flows for the Years Ended December 31, 2025, 2024 and 2023
Notes to Consolidated Financial Statements
2. Financial Statement Schedules. All supplemental schedules are omitted as inapplicable or because the required information is included in the Consolidated Financial Statements or notes thereto.
3. The exhibits to this Annual Report on Form 10-K listed below have been included only with the copy of this report filed with the SEC. The Company will furnish a copy of any exhibit to shareholders upon written request to the Company and payment of a reasonable fee not to exceed the Company’s reasonable expense.

Exhibit Number |  | Description
2.1 |  | Agreement and Plan of Merger, dated January 27, 2026, by and between Prosperity Bancshares, Inc. and Stellar Bancorp, Inc. (incorporated herein by reference to Exhibit 2.1 to the Company's Current Report on Form 8-K filed on January 29, 2026)
3.1 |  | Second Amended and Restated Certificate of Formation of Stellar Bancorp, Inc. (incorporated herein by reference to Exhibit 3.1 to the Company’s Current Report on Form 8-K filed on October 3, 2022)
3.2 |  | Amended and Restated Bylaws of Stellar Bancorp, Inc. (incorporated herein by reference to Exhibit 3.1 to the Company’s Current Report on Form 8-K filed on March 4, 2025)
4.1 |  | Specimen Common Stock Certificate (incorporated herein by reference to Exhibit 4.1 to the Company’s Current Report on Form 8-K filed on October 3, 2022)
4.2 |  | Description of Registrant’s Securities (incorporated by reference to Exhibit 4.2 to the Company’s Annual Report on Form 10-K filed on February 29, 2024 (Commission File No. 001-37585))
4.3 |  | Other instruments defining the rights of holders of long-term debt securities of the Company are omitted pursuant to Section (b) (4) (iii) (A) of Item 601 of Regulation S-K. The Company agrees to furnish copies of these instruments to the Commission upon request.
10.1 |  | Third Amended and Restated Loan Agreement, dated December 13, 2022 (incorporated herein by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed on December 16, 2022)
10.2 |  | Renewal Promissory Note (Floating Rate), dated December 13, 2024 (incorporated herein by reference to Exhibit 10.2 to the Company’s Current Report on Form 8-K filed on December 18, 2024)
10.3 |  | Amended and Restated Pledge and Security Agreement, dated November 17, 2022 (incorporated by reference to Exhibit 10.2 to the Current Report on Form 8-K of Stellar Bancorp, Inc. filed with the SEC on November 18, 2022)
10.4 |  | First Amendment to Third Amended and Restated Loan Agreement, dated December 13, 2024 (incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed on December 18, 2024)

68

Table of contents

10.5† |  | Executive Employment Agreement dated March 17, 2022, by and among CBTX. Inc., CommunityBank of Texas, N.A. and Robert R. Franklin, Jr. (incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed on March 18, 2022)
10.6 † |  | Form of Stellar Bancorp, Inc. Indemnification Agreement (incorporated herein by reference to Exhibit 10.6 to the Company’s Current Report on Form 8-K filed on October 3, 2022)
10.7† |  | Amended and Restated Stellar Bancorp, Inc. 2022 Omnibus Incentive Plan (incorporated herein by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed on May 28, 2025)
10.8† |  | Stellar Bancorp, Inc. Form of Restricted Stock Award Agreement (incorporated by reference to Exhibit 99.2 to the Company’s Registration Statement on Form S-8 filed on October 31, 2022 (File No. 333-268073)
10.9† |  | Stellar Bancorp, Inc. Form of Performance Share Award Agreement (incorporated by reference to Exhibit 99.3 to the Company’s Registration Statement on Form S-8 filed on October 31, 2022 (File No. 333-268073)
10.10† |  | Stellar Bancorp, Inc. Form of Restricted Stock Award Agreement (incorporated by reference to Exhibit 10.2 to the Company’s Quarterly Report on Form 10Q filed on July 26, 2024)
10.11† |  | Stellar Bancorp, Inc. Form of Performance Stock Unit Award Agreement (2024) (incorporated by reference to Exhibit 10.1 to the Company’s Quarterly Report on Form 10-Q filed on July 26, 2024)
10.12†* |  | Stellar Bancorp, Inc. Form of Amendment to Performance Stock Unit Award Agreement (2024)
10.13† |  | Stellar Bancorp, Inc. Form of Performance Stock Unit Award Agreement (2025) (incorporated herein by reference to Exhibit 10.1 to the Company’s Quarterly Report on Form 10-Q filed on April 25, 2025)
10.14†* |  | Stellar Bancorp, Inc. Form of Amendment to Performance Stock Unit Award Agreement (2025)
10.15† |  | Stellar Bancorp, Inc. Form of Restricted Stock Award Agreement (2025) (incorporated herein by reference to Exhibit 10.2 to the Company’s Quarterly Report on Form 10-Q filed on April 25, 2025)
10.16†* |  | Stellar Bancorp, Inc. Form of Performance Stock Unit Award Agreement (2026 Non-Executives)
10.17†* |  | Stellar Bancorp, Inc. Form of Restricted Stock Award Agreement (2026 Executives)
10.18†* |  | Stellar Bancorp, Inc. Form of Restricted Stock Share Award Agreement (2026 Non-Executives)
10.19† |  | Change in Control Severance Plan (incorporated herein by reference to Exhibit 10.1 to the Company’s Form 8-K filed on February 4, 2020)
10.20† |  | CBFH, Inc. 2014 Stock Option Plan (incorporated by reference to Exhibit 10.15 to the Company’s Form S-1 filed on October 13, 2017, File No. 333-220930)
10.21† |  | Form of Stock Option Award Agreement and Notice of Stock Option Award under the CBFH, Inc. 2014 Stock Option Plan (incorporated by reference to Exhibit 10.16 to the Company’s Form S-1 filed on October 13, 2017, File No. 333-220930)
10.22† |  | Allegiance Bancshares, Inc. 2019 Amended and Restated Stock Awards and Incentive Plan (incorporated by reference to Exhibit 10.1 to the Allegiance’s Current Report on Form 8-K filed on April 30, 2019 (Commission File No. 001-37585))
10.23† |  | Stellar Bancorp, Inc. Executive Severance Plan (incorporated herein by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed May 22, 2025)
10.24 |  | Form of Voting Agreement, dated as of January 27, 2026, by and between Prosperity Bancshares, Inc. and each director of Stellar Bancorp, Inc. (incorporated herein by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed January 29, 2026)
10.25 |  | Form of Director Support Agreement, dated as of January 27, 2026, by and among Prosperity Bancshares, Inc., Prosperity Bank, Stellar Bancorp, Inc., Stellar Bank, and directors of Stellar Bancorp, Inc. (incorporated herein by reference to Exhibit 10.2 to the Company’s Current Report on Form 8-K filed on January 29, 2026)
19.1 |  | Stellar Bancorp, Inc. Insider Trading Policy
21.1* |  | Subsidiaries of Stellar Bancorp, Inc.
23.1* |  | Consent of Crowe LLP
24.1* |  | Power of Attorney
31.1* |  | Certification of the Chief Executive Officer pursuant to Rule 13a-14(a) of the Securities Exchange Act of 1934, as amended
31.2* |  | Certification of the Chief Financial Officer pursuant to Rule 13a-14(a) of the Securities Exchange Act of 1934, as amended

69

Table of contents

32.1** |  | Certification of the Chief Executive Officer pursuant to 18 U.S.C. Section 1350, adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
32.2** |  | Certification of the Chief Financial Officer pursuant to 18 U.S.C. Section 1350, adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
97.1 |  | Policy for the Recovery of Erroneously Awarded Compensation (incorporated by reference to Exhibit 97.1 to the Company’s Annual Report on Form 10-K filed on February 29, 2024 (Commission File No. 001-37585))
101.INS* |  | Inline XBRL Instance Document - the instance document does not appear in the Interactive Data File because XBRL tags are embedded within the Inline XBRL document.
101.SCH* |  | Inline XBRL Taxonomy Extension Schema Document Exhibit
101.CAL* |  | Inline XBRL Taxonomy Extension Calculation Linkbase Document
101.DEF* |  | Inline XBRL Taxonomy Extension Definition Linkbase Document
101.LAB* |  | Inline XBRL Taxonomy Extension Label Linkbase Document
101.PRE* |  | Inline XBRL Taxonomy Extension Presentation Linkbase Document
104 |  | Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101)

________________________________
* Filed with this Annual Report on Form 10-K
** Furnished with this Annual Report on Form 10-K
*** Schedules have been omitted pursuant to Item 601(a) (5) of Regulation S-K. A copy of any omitted schedule will be furnished supplementally to the SEC upon request; provided, however, that the parties may request confidential treatment pursuant to Rule 24b-2 of the Securities Exchange Act of 1934, as amended, for any document so furnished
† Indicates a management contract or compensatory plan
ITEM 16. FORM 10-K SUMMARY
None.
70

Table of contents
SIGNATURES
Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, as amended, the registrant, has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

|  | STELLAR BANCORP, INC.
Date: February 26, 2026 | By: | /s/ Robert R. Franklin, Jr.
|  | Robert R. Franklin, Jr.
|  | Chief Executive Officer

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

Signature |  | Positions |  | Date
/s/ Robert R. Franklin, Jr. |  | Chief Executive Officer (Principal Executive Officer); Director |  | February 26, 2026
Robert R. Franklin, Jr. |  |  |
/s/ Paul P. Egge |  | Chief Financial Officer (Principal Financial and Principal Accounting Officer) |  | February 26, 2026
Paul P. Egge |  |  |
* |  | Director |  | February 26, 2026
Laura Bellows |  |  |  |
* |  | Director |  | February 26, 2026
John Beckworth |  |  |  |
* |  | Director |  | February 26, 2026
Cynthia Dopjera |  |  |  |
* |  | Director |  | February 26, 2026
Jon-Al Duplantier |  |  |  |
* |  | Director |  | February 26, 2026
Frances H. Jeter |  |  |  |
* |  | Director |  | February 26, 2026
Joe E. Penland, Sr. |  |  |  |
* |  | Director |  | February 26, 2026
Reagan A. Reaud |  |  |  |
* |  | Director |  | February 26, 2026
Steven F. Retzloff |  |  |  |
* |  | Director |  | February 26, 2026
Fred S. Robertson |  |  |  |
* |  | Director |  | February 26, 2026
Joseph B. Swinbank |  |  |  |
* |  | Director |  | February 26, 2026
Tymothi O. Tombar |  |  |  |
* |  | Director |  | February 26, 2026
John E. Williams, Jr. |  |  |  |

*By: /s/ Robert R. Franklin, Jr.
Attorney-in-Fact
February 26, 2026
71

Table of contents
REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
Shareholders and the Board of Directors of Stellar Bancorp, Inc.
Houston, Texas
Opinions on the Financial Statements and Internal Control over Financial Reporting
We have audited the accompanying consolidated balance sheets of Stellar Bancorp, Inc. (the “Company”) as of December 31, 2025 and 2024, the related consolidated statements of income, comprehensive income, changes in shareholders’ equity, and cash flows for each of the years in the three-year period ended December 31, 2025, and the related notes (collectively referred to as the “financial statements”). We also have audited the Company’s internal control over financial reporting as of December 31, 2025, based on criteria established in Internal Control – Integrated Framework: (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO).
In our opinion, the financial statements referred to above present fairly, in all material respects, the financial position of the Company as of December 31, 2025 and 2024, and the results of its operations and its cash flows for each of the years in the three-year period ended December 31, 2025 in conformity with accounting principles generally accepted in the United States of America. Also in our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2025, based on criteria established in Internal Control – Integrated Framework: (2013) issued by COSO.
Basis for Opinions
The Company’s management is responsible for these financial statements, for maintaining effective internal control over financial reporting, and for its assessment of the effectiveness of internal control over financial reporting, included in the accompanying Report on Management’s Assessment of Internal Controls over Financial Reporting. Our responsibility is to express an opinion on the Company’s financial statements and an opinion on the Company’s internal control over financial reporting based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (“PCAOB”) and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.
We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audits to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud, and whether effective internal control over financial reporting was maintained in all material respects.
Our audits of the financial statements included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. Our audit of internal control over financial reporting included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk. Our audits also included performing such other procedures as we considered necessary in the circumstances. We believe that our audits provide a reasonable basis for our opinions.
Definition and Limitations of Internal Control Over Financial Reporting
A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.
Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.
72

Table of contents
Critical Audit Matter
The critical audit matter communicated below is a matter arising from the current period audit of the financial statements that was communicated or required to be communicated to the audit committee and that: (1) relates to accounts or disclosures that are material to the financial statements and (2) involved our especially challenging, subjective, or complex judgments. The communication of a critical audit matter does not alter in any way our opinion on the financial statements, taken as a whole, and we are not, by communicating the critical audit matter below, providing a separate opinion on the critical audit matter or on the accounts or disclosures to which it relates.
Allowance for Credit Losses (“ACL”) on loans – Qualitative Loss Factors
As described in Notes 1 and 4 to the consolidated financial statements, the Company estimates expected credit losses to be realized over the contractual life of its loans, considering past events, current conditions, and reasonable and supportable forecasts of future economic conditions.
As of December 31, 2025, the ACL on loans of $83.6 million consisted of (1) loss allocations on loans individually evaluated and (2) loss allocations on loans collectively evaluated. Specific to the collectively evaluated allocation, the Company uses a cumulative loss rate methodology to estimate expected credit losses within the portfolio, applying an expected loss ratio based on historical loss experience adjusted qualitatively as appropriate for economic and portfolio-specific factors. The portfolio-specific factors are described in more detail within Note 1.
The determination of these inherently subjective qualitative loss factors for each loan portfolio category can have a significant impact on the estimate of expected credit losses recorded within the allocation of the allowance for loans collectively evaluated.
Given the significance of qualitative loss factors to the overall ACL, as well as the level of judgment and subjectivity involved in management’s determination of the qualitative loss factors, we have identified auditing the qualitative loss factors used to establish the allocation of the ACL on loans collectively evaluated to be a critical audit matter as it required especially subjective auditor judgment.
The primary audit procedures we performed to address this critical audit matter included:
•Tested the design and operating effectiveness of the Company’s internal controls related to the qualitative factors including controls addressing:
•Management’s judgments involved in the determination of qualitative loss factor adjustments;
•Management’s review over the relevance and reliability of the data used in qualitative loss factor adjustments; and
•Management’s testing of the mathematical accuracy of the ACL calculation.
•We performed substantive audit procedures related to the qualitative factors, including:
•Evaluation of qualitative loss factor adjustments, including evaluating external economic and industry trends, evaluating the overall composition of the loan portfolio, and evaluating the appropriateness of both current conditions and reasonable and supportable forecasts;
•Evaluation of the relevance and reliability of the data used in qualitative loss factor adjustments; and
•Verified the mathematical accuracy of management’s qualitative allocation calculation.
/s/ Crowe LLP
We have served as the Company’s auditor since 2014.
Washington, District of Columbia
February 26, 2026
73

Table of contents
STELLAR BANCORP, INC.
CONSOLIDATED BALANCE SHEETS

| December 31,
| 2025 |  | 2024
| (Dollars in thousands, except shares and par value)
ASSETS |  |  |
Cash and due from banks | $ | 94,331 |  |  | $ | 419,967 |
Interest-bearing deposits at other financial institutions | 325,122 |  |  | 491,249 |
Total cash and cash equivalents | 419,453 |  |  | 911,216 |
Available for sale securities, at fair value | 2,198,459 |  |  | 1,673,016 |
Loans held for investment | 7,300,591 |  |  | 7,439,854 |
Less: allowance for credit losses on loans | (83,629) |  |  | (81,058) |
Loans, net | 7,216,962 |  |  | 7,358,796 |
Accrued interest receivable | 35,869 |  |  | 37,884 |
Premises and equipment, net | 106,118 |  |  | 111,856 |
Federal Reserve Bank and Federal Home Loan Bank stock | 45,532 |  |  | 8,209 |
Bank-owned life insurance | 109,477 |  |  | 107,498 |
Goodwill | 497,318 |  |  | 497,318 |
Core deposit intangibles, net | 71,018 |  |  | 92,546 |
Other assets | 106,388 |  |  | 107,451 |
TOTAL ASSETS | $ | 10,806,594 |  |  | $ | 10,905,790 |
LIABILITIES AND SHAREHOLDERS’ EQUITY |  |  |
LIABILITIES: |  |  |
Deposits: |  |  |
Noninterest-bearing | $ | 3,407,865 |  |  | $ | 3,576,206 |
Interest-bearing |  |  |
Demand | 2,114,997 |  |  | 1,845,749 |
Money market and savings | 2,469,845 |  |  | 2,253,193 |
Certificates and other time | 1,028,759 |  |  | 1,453,236 |
Total interest-bearing deposits | 5,613,601 |  |  | 5,552,178 |
Total deposits | 9,021,466 |  |  | 9,128,384 |
Accrued interest payable | 5,508 |  |  | 17,052 |
Subordinated debt | 40,226 |  |  | 70,105 |
Other liabilities | 70,740 |  |  | 82,389 |
Total liabilities | 9,137,940 |  |  | 9,297,930 |
COMMITMENTS AND CONTINGENCIES (See Note 13) |  |  |
SHAREHOLDERS’ EQUITY: |  |  |
Preferred stock, $0.01 par value; 10,000,000 shares authorized; no shares issued or outstanding at both December 31, 2025 and 2024 | — |  |  | — |
Common stock, $0.01 par value; 140,000,000 shares authorized, 50,902,024 shares issued and outstanding at December 31, 2025 and 53,428,699 shares issued and outstanding at December 31, 2024 | 509 |  |  | 534 |
Capital surplus | 1,174,894 |  |  | 1,240,050 |
Retained earnings | 566,216 |  |  | 492,640 |
Accumulated other comprehensive loss | (72,965) |  |  | (125,364) |
Total shareholders’ equity | 1,668,654 |  |  | 1,607,860 |
TOTAL LIABILITIES AND SHAREHOLDERS’ EQUITY | $ | 10,806,594 |  |  | $ | 10,905,790 |

See notes to consolidated financial statements.
74

Table of contents
STELLAR BANCORP, INC.
CONSOLIDATED STATEMENTS OF INCOME

| Years Ended December 31,
| 2025 |  | 2024 |  | 2023
| (Dollars in thousands, except per share data)
INTEREST INCOME: |  |  |  |  |
Loans, including fees | $ | 484,877 |  |  | $ | 531,680 |  |  | $ | 537,722 |
Securities: |  |  |  |  |
Taxable | 65,338 |  |  | 49,903 |  |  | 38,494 |
Tax-exempt | 3,238 |  |  | 3,262 |  |  | 2,553 |
Deposits in other financial institutions | 21,017 |  |  | 17,555 |  |  | 12,048 |
Total interest income | 574,470 |  |  | 602,400 |  |  | 590,817 |
INTEREST EXPENSE: |  |  |  |  |
Demand, money market and savings deposits | 120,531 |  |  | 113,246 |  |  | 87,335 |
Certificates and other time deposits | 46,276 |  |  | 68,745 |  |  | 41,286 |
Borrowed funds | 986 |  |  | 4,549 |  |  | 17,807 |
Subordinated debt | 5,057 |  |  | 7,868 |  |  | 7,630 |
Total interest expense | 172,850 |  |  | 194,408 |  |  | 154,058 |
NET INTEREST INCOME | 401,620 |  |  | 407,992 |  |  | 436,759 |
Provision for (reversal of) credit losses | 10,158 |  |  | (2,880) |  |  | 8,943 |
Net interest income after provision for credit losses | 391,462 |  |  | 410,872 |  |  | 427,816 |
NONINTEREST INCOME: |  |  |  |  |
Service charges on deposit accounts | 6,282 |  |  | 6,430 |  |  | 6,064 |
(Loss) gain on sale/write-down of assets | (302) |  |  | 769 |  |  | 390 |
Bank-owned life insurance income | 2,886 |  |  | 2,414 |  |  | 2,178 |
Debit card and interchange income | 2,241 |  |  | 2,191 |  |  | 4,996 |
Other | 10,683 |  |  | 11,242 |  |  | 10,934 |
Total noninterest income | 21,790 |  |  | 23,046 |  |  | 24,562 |
NONINTEREST EXPENSE: |  |  |  |  |
Salaries and employee benefits | 168,807 |  |  | 165,357 |  |  | 157,034 |
Net occupancy and equipment | 17,619 |  |  | 17,864 |  |  | 16,932 |
Depreciation | 8,058 |  |  | 7,807 |  |  | 7,584 |
Data processing and software amortization | 22,980 |  |  | 21,652 |  |  | 19,526 |
Professional fees | 6,261 |  |  | 9,424 |  |  | 7,955 |
Regulatory assessments and FDIC insurance | 6,187 |  |  | 7,568 |  |  | 11,032 |
Amortization of intangibles | 21,580 |  |  | 24,220 |  |  | 26,883 |
Communications | 3,435 |  |  | 3,418 |  |  | 2,796 |
Advertising | 4,707 |  |  | 4,127 |  |  | 3,627 |
Acquisition and merger-related expenses | — |  |  | — |  |  | 15,555 |
Other | 25,836 |  |  | 27,521 |  |  | 21,570 |
Total noninterest expense | 285,470 |  |  | 288,958 |  |  | 290,494 |
INCOME BEFORE INCOME TAXES | 127,782 |  |  | 144,960 |  |  | 161,884 |
Provision for income taxes | 24,910 |  |  | 29,957 |  |  | 31,387 |
NET INCOME | $ | 102,872 |  |  | $ | 115,003 |  |  | $ | 130,497 |
EARNINGS PER SHARE: |  |  |  |  |
Basic | $ | 1.99 |  |  | $ | 2.15 |  |  | $ | 2.45 |
Diluted | $ | 1.99 |  |  | $ | 2.15 |  |  | $ | 2.45 |
DIVIDENDS PER SHARE | $ | 0.57 |  |  | $ | 0.53 |  |  | $ | 0.52 |

See notes to consolidated financial statements.
75

Table of contents
STELLAR BANCORP, INC.
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

| Years Ended December 31,
| 2025 |  | 2024 |  | 2023
| (Dollars in thousands)
Net income | $ | 102,872 |  |  | $ | 115,003 |  |  | $ | 130,497 |
Other comprehensive income (loss): |  |  |  |  |
Unrealized loss on securities: |  |  |  |  |
Change in unrealized holding gain (loss) on available for sale securities during the period | 66,365 |  |  | (9,222) |  |  | 31,086 |
Reclassification of loss realized through the sale of securities | 3 |  |  | — |  |  | 794 |
Total other comprehensive income (loss) | 66,368 |  |  | (9,222) |  |  | 31,880 |
Deferred tax (expense) benefit related to other comprehensive income (loss) | (13,969) |  |  | 1,945 |  |  | (6,706) |
Other comprehensive income (loss), net of tax | 52,399 |  |  | (7,277) |  |  | 25,174 |
Comprehensive income | $ | 155,271 |  |  | $ | 107,726 |  |  | $ | 155,671 |

See notes to consolidated financial statements.
76

Table of contents
STELLAR BANCORP, INC.
CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS’ EQUITY

| Common Stock |  | Capital Surplus |  | Retained Earnings |  | Accumulated Other Comprehensive (Loss) Income |  | Total Shareholders’ Equity
| Shares |  | Amount |  |  |  |
| (Dollars in thousands, except per share data)
BALANCE AT DECEMBER 31, 2022 | 52,954,985 |  |  | $ | 530 |  |  | $ | 1,222,761 |  |  | $ | 303,146 |  |  | $ | (143,261) |  |  | $ | 1,383,176 |
Net income | — |  |  | — |  |  | — |  |  | 130,497 |  |  | — |  |  | 130,497 |
Other comprehensive income | — |  |  | — |  |  | — |  |  | — |  |  | 25,174 |  |  | 25,174 |
Cash dividends declared, $0.52 per share | — |  |  | — |  |  | — |  |  | (27,698) |  |  | — |  |  | (27,698) |
Common stock issued in connection with the exercise of stock options and restricted stock awards | 336,094 |  |  | 3 |  |  | (79) |  |  | — |  |  | — |  |  | (76) |
Stock-based compensation expense | — |  |  | — |  |  | 9,945 |  |  | — |  |  | — |  |  | 9,945 |
BALANCE AT DECEMBER 31, 2023 | 53,291,079 |  |  | 533 |  |  | 1,232,627 |  |  | 405,945 |  |  | (118,087) |  |  | 1,521,018 |
Net income | — |  |  | — |  |  | — |  |  | 115,003 |  |  | — |  |  | 115,003 |
Other comprehensive loss | — |  |  | — |  |  | — |  |  | — |  |  | (7,277) |  |  | (7,277) |
Cash dividends declared, $0.53 per share | — |  |  | — |  |  | — |  |  | (28,308) |  |  | — |  |  | (28,308) |
Common stock issued in connection with the exercise of stock options and restricted stock awards | 246,520 |  |  | 2 |  |  | (500) |  |  | — |  |  | — |  |  | (498) |
Repurchase of common stock | (108,900) |  |  | (1) |  |  | (2,841) |  |  | — |  |  | — |  |  | (2,842) |
Stock-based compensation expense | — |  |  | — |  |  | 10,764 |  |  | — |  |  | — |  |  | 10,764 |
BALANCE AT DECEMBER 31, 2024 | 53,428,699 |  |  | 534 |  |  | 1,240,050 |  |  | 492,640 |  |  | (125,364) |  |  | 1,607,860 |
Net income | — |  |  | — |  |  | — |  |  | 102,872 |  |  | — |  |  | 102,872 |
Other comprehensive income | — |  |  | — |  |  | — |  |  | — |  |  | 52,399 |  |  | 52,399 |
Cash dividends declared, $0.57 per share | — |  |  | — |  |  | — |  |  | (29,296) |  |  | — |  |  | (29,296) |
Common stock issued in connection with the exercise of stock options and restricted stock awards | 116,296 |  |  | 1 |  |  | (981) |  |  | — |  |  | — |  |  | (980) |
Repurchase of common stock | (2,642,971) |  |  | (26) |  |  | (73,326) |  |  | — |  |  | — |  |  | (73,352) |
Stock-based compensation expense | — |  |  | — |  |  | 9,151 |  |  | — |  |  | — |  |  | 9,151 |
BALANCE AT DECEMBER 31, 2025 | 50,902,024 |  |  | $ | 509 |  |  | $ | 1,174,894 |  |  | $ | 566,216 |  |  | $ | (72,965) |  |  | $ | 1,668,654 |

See notes to consolidated financial statements.
77

Table of contents
STELLAR BANCORP, INC.
CONSOLIDATED STATEMENTS OF CASH FLOWS

| Years Ended December 31,
| 2025 |  | 2024 |  | 2023
| (Dollars in thousands)
CASH FLOWS FROM OPERATING ACTIVITIES: |  |  |  |  |
Net income | $ | 102,872 |  |  | $ | 115,003 |  |  | $ | 130,497 |
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |  |  |
Depreciation and intangibles amortization | 29,638 |  |  | 32,027 |  |  | 34,467 |
Net accretion of discount on loans | (15,541) |  |  | (32,999) |  |  | (46,791) |
Net amortization of premium on securities | (3,063) |  |  | 5,768 |  |  | 6,583 |
Provision for (reversal of) credit losses | 10,158 |  |  | (2,880) |  |  | 8,943 |
Deferred income tax (benefit) expense | (1,741) |  |  | 3,298 |  |  | 10,250 |
Stock-based compensation expense | 9,151 |  |  | 10,764 |  |  | 9,945 |
Net change in operating leases | 3,466 |  |  | 3,821 |  |  | 4,198 |
Bank-owned life insurance income | (2,886) |  |  | (2,414) |  |  | (2,178) |
Federal Reserve Bank and Federal Home Loan Bank stock dividends | (694) |  |  | (971) |  |  | (1,224) |
Loss (gain) on sale/write-down of assets | 302 |  |  | (769) |  |  | (390) |
Excess tax benefit from stock-based compensation | 107 |  |  | 136 |  |  | (61) |
Increase in accrued interest receivable and other assets | (6,392) |  |  | (3,620) |  |  | (2,323) |
(Decrease) increase in accrued interest payable and other liabilities | (28,373) |  |  | 5,455 |  |  | 16,301 |
Net cash provided by operating activities | 97,004 |  |  | 132,619 |  |  | 168,217 |
CASH FLOWS FROM INVESTING ACTIVITIES: |  |  |  |  |
Purchase of available for sale securities | (6,387,203) |  |  | (5,536,678) |  |  | (4,093,405) |
Proceeds from maturities and principal paydowns of available for sale securities | 5,794,483 |  |  | 5,237,440 |  |  | 4,137,330 |
Proceeds from sales and calls of available for sale securities | 136,705 |  |  | 6,912 |  |  | 392,687 |
Net change in total loans | 139,754 |  |  | 517,607 |  |  | (134,712) |
Purchase of bank premises and equipment | (4,398) |  |  | (4,663) |  |  | (6,861) |
Proceeds from sale of bank premises, equipment and other real estate | 9,067 |  |  | 7,660 |  |  | 8,984 |
Net (purchase) redemption of Federal Reserve Bank and Federal Home Loan Bank stock | (36,629) |  |  | 17,813 |  |  | (8,769) |
Net cash (used in) provided by investing activities | (348,221) |  |  | 246,091 |  |  | 295,254 |
CASH FLOWS FROM FINANCING ACTIVITIES: |  |  |  |  |
Net (decrease) increase in noninterest-bearing deposits | (168,341) |  |  | 29,391 |  |  | (683,354) |
Net increase in interest-bearing deposits | 61,423 |  |  | 225,526 |  |  | 289,189 |
Dividends paid to common shareholders | (29,296) |  |  | (28,308) |  |  | (27,698) |
Repayments of subordinated debt | (30,000) |  |  | (40,000) |  |  | — |
Net change in borrowings | — |  |  | (50,000) |  |  | (14,000) |
Payments made from the issuance of restricted stock and stock option exercises | (980) |  |  | (498) |  |  | (76) |
Repurchase of common stock | (73,352) |  |  | (2,842) |  |  | — |
Net cash (used in) provided by financing activities | (240,546) |  |  | 133,269 |  |  | (435,939) |
NET CHANGE IN CASH AND CASH EQUIVALENTS | (491,763) |  |  | 511,979 |  |  | 27,532 |
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD | 911,216 |  |  | 399,237 |  |  | 371,705 |
CASH AND CASH EQUIVALENTS, END OF PERIOD | $ | 419,453 |  |  | $ | 911,216 |  |  | $ | 399,237 |

See notes to consolidated financial statements.
78

Table of contents
STELLAR BANCORP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
1. NATURE OF OPERATIONS AND SUMMARY OF SIGNIFICANT ACCOUNTING AND REPORTING POLICIES
Nature of Operations and Principles of Consolidatio n—The audited consolidated financial statements presented in this Annual Report on Form 10-K include the consolidated results of Stellar and its wholly-owned subsidiary, Stellar Bank, which are collectively herein referred to as “we,” “us,” “our” and the “Company.” The Company provides a diversified range of commercial banking services primarily to small- to medium-sized businesses. Intercompany transactions and balances are eliminated in consolidation under U.S. generally accepted accounting principles (“GAAP”). The Company derives substantially all of its revenues and income from the operation of the Bank.
The Company is focused on delivering a wide variety of relationship-driven commercial banking products and community-oriented services tailored to meet the needs of small- to medium-sized businesses, professionals and individuals through its 52 full-service banking centers with 35 banking centers in the Houston metropolitan statistical area (“MSA”), 16 banking centers in the Beaumont MSA and one banking center in Dallas, Texas.
Use of Estimates—The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions based on available information. These estimates and assumptions affect the reporting of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.
Cash and Cash Equivalents—Cash and cash equivalents include cash, deposits with other financial institutions with maturities not greater than one year. Net cash flows are reported for customer loan and deposit transactions. The Bank can be required by the Federal Reserve Bank of Dallas to maintain average reserve balances. The Bank was not required to maintain reserve balances at December 31, 2025 and 2024.
Cash Flow Reporting—Net cash flows are reported for loan and deposit transactions. See below for additional cash flow information.

|  | Years Ended December 31,
|  | 2025 |  | 2024 |  | 2023
|  | (In thousands)
Cash paid for: |  |  |  |  |  |
Interest |  | $ | 184,394 |  |  | $ | 188,644 |  |  | $ | 144,868 |
U.S. federal income taxes, net of refunds received |  | 18,500 |  |  | 27,400 |  |  | 13,491 |
State income/franchise taxes, net of refunds received |  | 217 |  |  | 359 |  |  | 207 |
Operating lease liabilities |  | 4,222 |  |  | 4,625 |  |  | 4,586 |
Significant non-cash transactions |  |  |  |  |  |
Loans transferred to other real estate |  | 15,647 |  |  | 5,991 |  |  | — |
Bank-financed sales of other real estate |  | 4,360 |  |  | — |  |  | — |
Lease right-of-use assets obtained in exchange for lessee operating lease liabilities |  | 1,477 |  |  | 353 |  |  | 1,406 |
Branch assets transferred to assets held for sale |  | — |  |  | — |  |  | 3,819 |

Securities—Debt securities are classified as available for sale when they might be sold before maturity. Securities available for sale are carried at fair value. Unrealized gains and losses are excluded from earnings and reported, net of tax, as a separate component of shareholders’ equity until realized. Securities within the available for sale portfolio may be used as part of the Company’s asset/liability strategy and may be sold in response to changes in interest rate risk, prepayment risk or other similar economic factors.
Interest earned on these assets is included in interest income. Interest income includes amortization of purchase premium or discount. Premiums and discounts on securities are amortized on the level-yield method, except for mortgage-backed securities where prepayments are anticipated. Gains and losses on sales are recorded on the trade date and determined using the specific identification method. Accrued interest receivable on securities available for sale totaled $8.0 million at December 31, 2025 and was reported in accrued interest receivable on the consolidated balance sheets.
79

Table of contents
STELLAR BANCORP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
Loans—Loans that management has the intent and ability to hold for the foreseeable future or until maturity or payoff are reported at amortized cost net of the allowance for credit losses on loans. Amortized cost is the principal balance outstanding, net of purchase accounting adjustments and deferred fees and costs. Accrued interest receivable on loans totaled $27.6 million at December 31, 2025 and was reported in accrued interest receivable on the consolidated balance sheets. Interest income is accrued on the unpaid principal balance. Loan origination fees, net of origination costs, are deferred and recognized in interest income using the interest method without anticipating prepayments. Interest income on loans is discontinued and placed on nonaccrual status at the time the loan is 90 days delinquent. All interest accrued but not received for loans placed on nonaccrual is reversed against interest income. Loans are returned to accrual status when all the principal and interest amount contractually due are brought current and future payments are reasonably assured.
Nonrefundable Fees and Costs Associated with Lending Activities—Loan commitment and loan origination fees, and certain direct origination costs, are deferred and recognized in interest income as an adjustment to yield without anticipating prepayments using the interest method over the related loan life or if the commitment expires unexercised, balances are recognized in income upon expiration of the commitment.
Nonperforming and Past Due Loans—The Company has several procedures in place to assist it in maintaining the overall quality of its loan portfolio. The Company has established underwriting guidelines to be followed by its officers and monitors its delinquency levels for any negative or adverse trends. There can be no assurance, however, that the Company’s loan portfolio will not become subject to increasing pressures from deteriorating borrower credit due to general economic conditions or other factors.
Past due status is based on the contractual terms of the loan. Loans are considered past due if the required principal and interest payments have not been received as of the date such payments were due. The Company generally classifies a loan as nonperforming, automatically places the loan on nonaccrual status, ceases accruing interest and reverses all unpaid accrued interest against interest income, when, in management’s opinion, the borrower may be unable to meet payment obligations, when the payment of principal or interest on a loan is delinquent for 90 days, as well as when required by regulatory provisions, unless the loan is in the process of collection and the underlying collateral fully supports the carrying value of the loan. Any payments received on nonaccrual loans are applied first to outstanding principal amounts. Interest income is subsequently recognized only to the extent cash payments are received in excess of principal due. Any excess is treated as recovery of lost interest. Loans are returned to accrual status when all of the principal and interest amounts contractually due are brought current and future payments are reasonably assured.
In all cases, loans are placed on nonaccrual or charged-off at an earlier date if collection of principal or interest is considered doubtful. If the decision is made to continue accruing interest on the loan, periodic reviews are made to confirm the accruing status of the loan. Nonaccrual loans and loans past due 90 days include both smaller balance homogeneous loans that are collectively and individually evaluated. When available information confirms that specific loans, or portions thereof, are uncollectible, these amounts are charged-off against the allowance. All loan types are considered delinquent after 30 days past due and are typically charged-off or charged-down no later than 120 days past due, with consideration of, but not limited to, the following criteria in determining the need and timing of the charge-off or charge-down: (1) the Bank is in the process of repossession or foreclosure and there appears to be a likely deficiency, (2) the collateral securing the loan has been sold and there is an actual deficiency, (3) the Bank is proceeding with lengthy legal action to collect its balance, (4) the borrower is unable to be located or (5) the borrower has filed bankruptcy. Charge-offs occur when the Company confirms a loss on a loan.
A llowance for Credit Losses—The allowance for credit losses is a valuation account that is established through a provision for (or reversal of) credit losses charged to expense, which represents management’s best estimate of lifetime expected losses based on reasonable and supportable forecasts, historical loss experience, and other qualitative considerations. The allowance for credit losses includes the allowance for credit losses on loans, which is deducted from the loans’ amortized cost basis to present the net amount expected to be collected on loans, and the allowance for credit losses on unfunded commitments reported in other liabilities.
Allowance for Credit Losses on Loans—The level of the allowance is based upon management’s evaluation of historical default and loss experience, current and projected economic conditions, asset quality trends, known and inherent risks in the portfolio, adverse situations that may affect the borrowers' ability to repay a loan (including the timing of future payments), the estimated value of any underlying collateral, composition of the loan portfolio, industry and peer bank loan quality indications and other pertinent factors, including regulatory recommendations. The allowance for credit losses on loans maintained by management is believed adequate to absorb all expected future losses in the loan portfolio at the balance sheet date. The Company disaggregates the loan portfolio into pools for purposes of determining the allowance for credit losses. These pools are based on the level at which the Company develops, documents and applies a systematic methodology to determine the allowance for credit losses.
80

Table of contents
STELLAR BANCORP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
Loans with similar risk characteristics are aggregated into homogenous pools and are collectively evaluated by applying reserve factors, such as historical lifetime loss, concentration risk, volume, growth and composition of the loan portfolio, current and forecasted economic conditions to amortized cost balances over the remaining contractual life of the collectively evaluated portfolio. Historical lifetime loss is determined by utilizing an open-pool (“cumulative loss rate”) methodology, adjusted for credit risk characteristics and current and forecasted economic conditions. Losses are predicted over a reasonable and supportable period of one year for all loan pools, followed by an immediate reversion to long-term historical averages. The reasonable and supportable period and reversion period are re-evaluated as needed by the Company and are dependent on the current economic environment among other factors.
Loans that no longer share risk characteristics with the collectively evaluated loan pools are evaluated on an individual basis and are excluded from the collectively evaluated pools. To assess which loans are to be individually evaluated, the Company follows a loan review program to evaluate the credit risk in the total loan portfolio and assigns risk grades to each loan. Individual credit loss estimates are typically performed for nonaccrual loans and all other loans identified by management. All loans deemed as being individually evaluated are reviewed on a quarterly basis to determine whether a specific reserve is required. The Company considers certain loans to be collateral dependent if the borrower is experiencing financial difficulty and management expects repayment for the loan to be substantially through the operation or sale of the collateral. For collateral dependent loans, loss estimates are based on the fair value of collateral, less estimated cost to sell (if applicable). Collateral values supporting individually evaluated loans are assessed quarterly and appraisals are typically obtained at least annually. The Company allocates a specific loan loss reserve on an individual loan basis primarily based on the value of the collateral securing the individually evaluated loan. Through this loan review process, the Company assesses the overall quality of the loan portfolio and the adequacy of the allowance for credit losses on loans while considering risk elements attributable to particular loan types in assessing the quality of individual loans. In addition, for each category of loans, the Company considers secondary sources of income and the financial strength and credit history of the borrower and any guarantors.
A change in the allowance for credit losses on loans can be attributable to several factors, most notably historical lifetime loss, specific reserves for individually evaluated loans, changes in qualitative factors and growth within the loan portfolio. The estimated loan losses for all loan pools are adjusted for changes in qualitative factors not inherently considered in the quantitative analyses to bring the allowance to the level management believes is appropriate based on factors that have not otherwise been fully accounted for, including adjustments for foresight risk, input imprecision and model imprecision. The qualitative categories and the measurements used to quantify the risks within each of these categories are subjectively selected by management, but measured by objective measurements period over period. The data for each measurement may be obtained from internal or external sources. The current period measurements are evaluated and assigned a factor commensurate with the current level of risk relative to past measurements over time. The resulting qualitative adjustments are applied to the relevant collectively evaluated loan portfolios. These adjustments are based upon quarterly trend assessments in portfolio concentrations, changes in lending policies and procedures, policy exceptions, independent loan review results, internal risk ratings and peer group credit quality trends. Additional qualitative considerations are made for any identified risk which did not exist within our portfolio historically and therefore may not be adequately addressed through evaluation of such risk factors based on historical portfolio trends. Qualitative adjustments also include current and forecasted economic conditions primarily measured by local and national economic metrics, such as GDP, unemployment rates, interest rates and oil and gas prices based on historical and forecasted economic research scenarios provided by industry-leading financial intelligence and analytical solutions, which the Company has subscribed to. The qualitative allowance allocation is increased or decreased for each loan pool based on the assessment of these various qualitative factors. Management recognizes the sensitivity of various assumptions made in the quantitative modeling of expected losses and may adjust reserves depending upon the level of uncertainty that currently exists in one or more assumptions.
The calculation of current expected credit losses is inherently subjective, as it requires management to exercise judgment in determining appropriate factors used to determine the allowance. The estimated loan losses for all loan pools are adjusted for changes in qualitative factors not inherently considered in the quantitative analyses to bring the allowance to the level management believes is appropriate based on factors that have not otherwise been fully accounted for, including adjustments for foresight risk, input imprecision and model imprecision. The qualitative categories and the measurements used to quantify the risks within each of these categories are subjectively selected by management, but measured by objective measurements period over period. The data for each measurement may be obtained from internal or external sources. The current period measurements are evaluated and assigned a factor commensurate with the current level of risk relative to past measurements over time. The resulting qualitative adjustments are applied to the relevant collectively evaluated loan portfolios. These adjustments are based upon quarterly trend assessments in portfolio concentrations, changes in lending policies and procedures, policy exceptions, independent loan review results, internal risk ratings and peer group credit quality trends. The qualitative allowance allocation, as determined by the processes noted above, is increased or decreased for each loan pool based on the assessment of these various qualitative factors. The determination of the appropriate qualitative adjustment is based on management’s analysis of current and expected economic conditions and their impact to the portfolio, as well as internal credit risk movements and a qualitative assessment of the lending environment, including underwriting standards. Management recognizes the sensitivity of various assumptions made in the quantitative modeling of expected losses and may adjust reserves depending upon the level of uncertainty that currently exists in one or more assumptions.
81

Table of contents
STELLAR BANCORP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
While policies and procedures used to estimate the allowance for credit losses on loans, as well as the resultant provision for credit losses charged to income, are considered adequate by management and are reviewed periodically by regulators and internal audit, they are approximate and could materially change based on changes within the loan portfolio and effects from economic factors. There are factors beyond the Company’s control, such as changes in projected economic conditions, including political instability or global events affecting the U.S. economy, real estate markets or particular industry conditions which could cause changes to expectations for current conditions and economic forecasts that could result in an unanticipated increase in the allowance and may materially impact asset quality and the adequacy of the allowance for credit losses and thus the resulting provision for credit losses.
In assessing the adequacy of the allowance for credit losses on loans, the Company considers the results of its ongoing independent loan review process. The Company undertakes this process both to ascertain those loans in the portfolio with elevated credit risk and to assist in its overall evaluation of the risk characteristics of the entire loan portfolio. Its loan review process includes the judgment of management, independent internal loan reviewers and reviews that may have been conducted by third-party reviewers including regulatory examiners. The Company incorporates relevant loan review results in the allowance.
Losses are estimated over the remaining contractual terms of loans, adjusted for prepayments. The contractual term excludes expected extensions, renewals and modifications unless management has a reasonable expectation at the reporting date that a troubled loan modification will be executed or such renewals, extensions or modifications are included in the original loan agreement and are not unconditionally cancellable by the Company.
Credit losses are estimated on the amortized cost basis of loans, which includes the principal balance outstanding, purchase discounts and premiums and deferred loan fees and costs. Loan losses are not estimated for accrued interest receivable as interest that is deemed uncollectible is written off through interest income in a timely manner. Accrued interest is presented separately on the balance sheets and, as allowed under Accounting Standards Codification (“ASC”) Topic 326 - Measurement of Credit Losses on Financial Instruments (“ASC Topic 326”), is excluded from the tabular loan disclosures in Note 4 – Loans and Allowance for Credit Losses.
Allowance for Credit Losses on Unfunded Commitments—The Company estimates expected credit losses over the contractual term in which the Company is exposed to credit risk through a contractual obligation to extend credit, unless the obligation is unconditionally cancellable by the Company. The allowance for credit losses on unfunded commitments is recorded on the balance sheet in other liabilities and is adjusted as a provision for (or reversal of) credit loss expense. The estimates are determined based on the likelihood of funding during the contractual term and an estimate of credit losses subsequent to funding. Estimated credit losses on subsequently funded balances are based on the same assumptions as used to estimate credit losses on existing funded loans.
Allowance for Credit Losses - Securities Available for Sale—For securities classified as available for sale that are in an unrealized loss position at the balance sheet date, the Company first assesses whether or not it intends to sell the security, or more likely than not will be required to sell the security, before recovery of its amortized cost basis. If either criteria is met, the security’s amortized cost basis is written down to fair value through net income. If neither criteria is met, the Company evaluates whether any portion of the decline in fair value is the result of credit deterioration. Such evaluations consider the extent to which the amortized cost of the security exceeds its fair value, changes in credit ratings and any other known adverse conditions related to the specific security. If the evaluation indicates that a credit loss exists, an allowance for credit losses is recorded through provisions for credit losses for the amount by which the amortized cost basis of the security exceeds the present value of cash flows expected to be collected, limited by the amount by which the amortized cost exceeds fair value. Losses are charged against the allowance when management believes the uncollectibility of an available for sale security is confirmed or when either of the criteria regarding intent or requirement to sell is met. Any impairment not recognized in the allowance for credit losses is recognized in other comprehensive income. For certain types of debt securities, such as U.S. Treasuries and other securities with government guarantees, entities may expect zero credit losses.
Loans acquired in a business combination—The Company records purchased credit deteriorated (“PCD”) loans, defined as a more-than-insignificant deterioration in credit quality since origination or issuance, at the purchase price plus the allowance for credit losses expected at the time of acquisition. Under this method, there is no credit loss expense affecting net income on acquisition of PCD loans. Changes in estimates of expected losses after acquisition are recognized as credit loss expense (or reversal of credit loss expense) in subsequent periods. Any noncredit discount or premium resulting from the acquisition of purchased loans with credit deterioration was allocated to each individual loan. The determination of PCD classification on acquired loans can have a significant impact on the accounting for these loans.
At acquisition date, the initial allowance for PCD loans that do not share risk characteristics with pooled PCD loans, are evaluated by the Company on an individual loan basis. The expected credit loss was measured based on net realizable value, that is, the difference between the discounted value of the expected future cash flows, based on the original effective interest rate, and the amortized cost basis of the loan. For these loans, the Company recognizes expected credit loss equal to the amount by which the net
82

Table of contents
STELLAR BANCORP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
realizable value of the loan is less than the amortized cost basis of the loan (which is net of previous charge-offs), except when the loan is collateral dependent, that is, when the borrower is experiencing financial difficulty and repayment is expected to be provided substantially through the operation or sale of the collateral. In these cases, expected credit loss was measured as the difference between the amortized cost basis of the loan and the fair value of the collateral. The fair value of the collateral is adjusted for the estimated costs to sell the loan if repayment or satisfaction of a loan is dependent on the sale (rather than only on the operation) of the collateral. The noncredit discount or premium, after the adjustment for the allowance for credit losses, shall be accreted to interest income using the interest method based on the effective interest rate determined after the adjustment for credit losses at the adoption date. Individually evaluated PCD loans were $13.8 million and the associated allowance for credit losses was $267 thousand at December 31, 2025.
A purchased financial asset that does not qualify as a PCD asset is accounted for similar to an originated financial asset. Generally, this means that an entity recognizes the allowance for credit losses for non-PCD assets through net income at the time of acquisition. In addition, both the credit discount and noncredit discount or premium resulting from acquiring a pool of purchased financial assets that do not qualify as PCD assets shall be allocated to each individual asset. This combined discount or premium shall be accreted to interest income using the effective yield method.
The fair value of acquired loans involved third-party estimates utilizing input assumptions by management which may be complex or uncertain. The determination of the fair value of acquired loans is based on a discounted cash flow methodology that considers factors such as type of loan and related collateral, and requires management’s judgment on estimates about discount rates, expected future cash flows, market conditions and other future events. For PCD loans, an estimate of expected credit losses was made and added to the purchase price to establish the initial amortized cost basis of the PCD loans. Any difference between the unpaid principal balance and the amortized cost basis is considered to relate to noncredit factors and results in a discount or premium. Discounts and premiums are recognized through interest income on an effective yield method over the life of the loans. For acquired loans not deemed PCD at acquisition, the differences between the initial fair value and the unpaid principal balance are recognized as interest income on an effective-yield basis over the lives of the related loans.
For further discussion of our loan accounting see Note 4 – Loans and Allowance for Credit Losses.
Collateral Dependent Loans with Specific Allocation of Allowance for Credit Losses on Loans—A loan is considered to be a collateral dependent loan when, based on current information and events, the Company expects repayment of the financial assets to be provided substantially through the operation or sale of the collateral and the Company has determined that the borrower is experiencing financial difficulty as of the measurement date. The allowance for credit losses on loans is measured by estimating the fair value of the loan based on the present value of expected cash flows, the market price of the loan, or the underlying fair value of the loan’s collateral. For real estate loans, fair value of the loan’s collateral is generally determined by third-party appraisals or internal evaluations, which are then adjusted for the estimated selling and closing costs related to liquidation of the collateral. For this asset class, the actual valuation methods (income, sales comparable, or cost) vary based on the status of the project or property. For example, land is generally based on the sales comparable method while construction is based on the income and/or sales comparable methods. The unobservable inputs may vary depending on the individual assets with no one of the three methods being the predominant approach. The Company reviews the third-party appraisal for appropriateness and adjusts the value downward to consider selling and closing costs, which typically range from 5% to 10% of the appraised value. For non-real estate loans, fair value of the loan’s collateral may be determined using an appraisal, net book value per the borrower’s financial statements, or aging reports, adjusted or discounted based on management’s historical knowledge, changes in market conditions from the time of the valuation, and management’s expertise and knowledge of the client and client’s business.
Loan Modifications—Under Subtopic 310-20, a modification is treated as a new loan only if the following two conditions are met: (1) the terms of the new loan are at least as favorable to the lender as the terms for comparable loans to other customers with similar collection risks; and (2) modifications to the terms of the original loan are more than minor. If either condition is not met, the modification is accounted for as the continuation of the old loan with any effect of the modification treated as a prospective adjustment to the loan’s effective interest rate.
Premises and Equipment—Premises and equipment is carried at cost less accumulated depreciation. Depreciation expense is calculated principally using the straight-line method over the estimated useful lives of the assets which range fro m 3 to 39 years. Leasehold improvements are amortized using the straight-line method over the periods of the leases or the estimated useful lives, whichever is shorter. Land is carried at cost.
Leases—The Company leases certain branch locations, office facilities and equipment under operating leases. Leases with an initial term of 12 months or less are considered short-term and are not recorded on the balance sheet and the related lease expense is recognized on a straight-line basis over the lease term. For operating leases other than those considered to be short-term, the Company recognizes lease right-of-use assets and related lease liabilities. Such amounts are reported as components of premises and equipment
83

Table of contents
STELLAR BANCORP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
and other liabilities, respectively, on the consolidated balance sheet. The Company owns certain office facilities which it leases to outside parties under operating lessor leases; however, such leases are not significant.
Lease payments over the expected term are discounted using the Company’s incremental borrowing rate for borrowings of similar terms. Generally, the Company cannot be reasonably certain about whether or not it will renew a lease until such time as the lease is within the last two years of the existing lease term. When the Company is reasonably certain that a renewal option will be exercised, it measures/remeasures the right-of-use asset and related lease liability using the lease payments specified for the renewal period or, if such amounts are unspecified, the Company generally assumes an increase (evaluated on a case-by-case basis in light of prevailing market conditions) in the lease payment over the final period of the existing lease term.
The depreciable lives of leased assets are limited by the expected lease term.
Other Repossessed Assets—Assets acquired through or instead of loan foreclosure are held for sale and are initially recorded at fair value less estimated selling costs when acquired, establishing a new cost basis. Costs after acquisition are generally expensed. If the fair value of the asset declines, a write-down is recorded through expense. The valuation of foreclosed assets is subjective in nature and may be adjusted in the future because of changes in economic conditions. At December 31, 2025, the balance of other repossessed assets was $7.5 million.
Federal Home Loan Bank (“FHLB”) Stock—The Bank is a member of the FHLB system. Members are required to own a certain amount of stock based on the level of borrowings and other factors and may invest in additional amounts. FHLB stock is carried at cost, classified as a restricted security and periodically evaluated for impairment based on ultimate recovery of par value. Both cash and stock dividends are reported as income.
Federal Reserve Bank (“FRB”) Stock—The Bank is a member of the FRB system. Members are required to own a certain amount of stock based on the level of borrowings and other factors and may invest in additional amounts. FRB stock is carried at cost, classified as a restricted security and periodically evaluated for impairment based on ultimate recovery of par value.
Bank-Owned Life Insurance—The Company purchased bank-owned life insurance policies on certain key executives and acquired life insurance policies in conjunction with mergers and acquisitions. Bank-owned life insurance is recorded at the amount that can be realized under the insurance contract at the balance sheet date, which is the cash surrender value, and the most reasonable estimate of fair value, adjusted for other charges or other amounts due that are probable at settlement.
Goodwill—Goodwill resulting from business combinations is generally determined as the excess of the fair value of the consideration transferred, plus the fair value of any noncontrolling interests in the acquiree, over the fair value of the net assets acquired and liabilities assumed as of the acquisition date. Goodwill is assessed annually for impairment or more frequently if events and circumstances exist that indicate that the carrying amount of the asset may not be recoverable and a goodwill impairment test should be performed. A significant amount of judgment is involved in determining if an indicator of impairment has occurred. Such indicators may include, among others: a significant decline in our expected future cash flows; a sustained, significant decline in our stock price and market capitalization; a significant adverse change in legal factors or in the business climate; adverse action or assessment by a regulator; and unanticipated competition. Any adverse change in these factors could have a significant impact on the recoverability of these assets and could have a material impact on the Company’s consolidated financial statements.
Goodwill is the only intangible asset with an indefinite life on the Company’s balance sheet.
Core Deposit Intangibles—Core deposit intangibles arising from acquisitions are amortized using a straight-line or accelerated amortization method over their estimated useful lives, which is seven to ten years.
Borrowed Funds—The Company has a credit agreement with another financial institution. The Company pledged its shares in the Bank’s stock as collateral for the borrowing.
Loan Commitments and Related Financial Instruments—Financial instruments include off-balance sheet credit instruments, such as commitments to extend credit, issued to meet customer financing needs. The face amount for these items represents a promise to lend before considering customer collateral or ability to repay. Such financial instruments are recorded when they are funded.
Derivative Financial Instrument s—Derivatives are recorded at fair value in other assets or other liabilities on the balance sheet. Derivatives executed with the same counterparty are generally subject to master netting arrangements. Fair value amounts
84

Table of contents
STELLAR BANCORP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
recognized for derivatives and fair value amounts recognized for the right/obligation to reclaim/return cash collateral are not offset for financial reporting purposes.
For derivative instruments that are designated and qualify for hedge accounting, the aggregate fair value of the derivative instrument is recorded in other assets or other liabilities with any gain or loss related to changes in fair value recorded in accumulated other comprehensive income, net of tax. The gain or loss is reclassified into earnings in the same period during which the hedged asset or liability affects earnings and is presented in the same income statement line item as the earnings effect of the hedged asset or liability. The Company had no derivative instruments that qualified for hedge accounting during 2025 or 2024.
Stock-Based Compensation—Compensation cost is recognized for stock options, restricted stock awards, performance share units (“PSUs”) and performance share awards (“PSAs”) issued to employees and directors, based on the fair value of these awards at the date of grant. The expense associated with stock-based compensation is recognized over the required service period, generally defined as the vesting period of each individual arrangement.
The fair value of stock options granted are estimated at the date of grant using the Black-Scholes model.
The fair value of restricted stock awards is the grant date market price of our stock. The grant date fair value of the PSUs and PSAs are based on the probable outcome of the applicable performance conditions and is calculated at target based on a combination of the closing market price of our common stock at grant date and a Monte Carlo simulated fair value in accordance with ASC 718. The impact of forfeitures of share-based payment awards on compensation expense is recognized as they occur. PSUs and PSAs are contingent upon performance and service conditions, which affect the number of shares ultimately issued. The Company periodically evaluates the probable outcome of the performance conditions and makes cumulative adjustments to compensation expense as appropriate.
401(k) benefit plan—The Company provides a 401(k) retirement savings plan for eligible employees, which includes a matching contribution program. Under this program, the Company matches employee contributions dollar-for-dollar up to 6% of the employee’s eligible compensation, subject to terms and conditions of the plan and the annual contribution limits established by the Internal Revenue Code. Matching contribution expense as of December 31, 2025, 2024 and 2023 was $5.7 million, $5.5 million and $5.0 million, respectively.
Income Taxes—Income tax expense is the total of the current year income tax due and the change in deferred tax assets or liabilities. Deferred tax assets and liabilities are recognized for the estimated tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases and are recorded in other assets on the Company’s consolidated balance sheets.
The Company records uncertain tax positions on the basis of a two-step process whereby (1) the Company determines whether it is more likely than not that the tax positions will be sustained on the basis of the technical merits of the position and (2) for those tax positions that meet the more likely than not recognition threshold, the Company recognizes the largest amount of tax benefit that is greater than 50 percent likely of being realized upon ultimate settlement with the related tax authority. For tax positions not meeting the more likely than not test, no tax benefit is recorded. Any interest and/or penalties related to income taxes are reported as a component of income tax expense.
The Company files a consolidated federal income tax return.
Comprehensive income—Comprehensive income consists of net income and other comprehensive income which includes unrealized gains and losses on securities available for sale, which are also recognized as separate components of equity, net of tax.
Fair Value of Financial Instruments—Fair values of financial instruments are estimated using relevant market information and other assumptions, as more fully disclosed in a separate note. Fair value estimates involve uncertainties and matters of significant judgment regarding interest rates, credit risk, prepayments and other factors, especially in the absence of broad markets for particular items. Changes in assumptions or in market conditions could significantly affect these estimates.
Operating Segments—While management monitors the revenue streams of the various products and services, operations are managed and financial performance is evaluated on a Company-wide basis. All of the financial service operations are considered by management to be aggregated in one reportable operating segment.
85

Table of contents
STELLAR BANCORP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
Reclassifications—Certain items in the prior year financial statements were reclassified to conform to the current presentation. Reclassifications had no effect on prior year net income or shareholders’ equity.
Earnings per Common Share—Basic earnings per common share is calculated as net income divided by the weighted- average number of common shares outstanding during the period. Diluted earnings per common share is computed using the weighted-average number of common shares determined for the basic earnings per common share computation plus the potential dilutive effect of stock compensation using the treasury stock method. A reconciliation of the weighted-average shares used in calculating basic earnings per common share and the weighted-average common shares used in calculating diluted earnings per common share for the reported periods is provided in Note 15 – Earnings Per Common Share.
Loss Contingencies—Loss contingencies, including claims and legal actions arising in the ordinary course of business, are recorded as liabilities when the likelihood of loss is probable and an amount or range of loss can be reasonably estimated. Management does not believe there are such matters that will have a material effect on the financial statements.
Dividend Restrictions—Banking regulations require maintaining certain capital levels and may limit the dividends paid by the Bank to the Company or by the Company to its shareholders. In addition, the Company’s credit agreement with another financial institution also limits its ability to pay dividends.
Revenue from Contracts with Customers—The Company records revenue from contracts with customers in accordance with ASC Topic 606, “Revenue from Contracts with Customers” (“ASC Topic 606”). Under ASC Topic 606, the Company must identify the contract with a customer, identify the performance obligations in the contract, determine the transaction price, allocate the transaction price to the performance obligations in the contract, and recognize revenue when (or as) the Company satisfies a performance obligation. Significant revenue has not been recognized in the current reporting period that results from performance obligations satisfied in previous periods.
The Company’s primary sources of revenue are derived from interest and dividends earned on loans, investment securities, and other financial instruments that are not within the scope of ASC Topic 606. The Company has evaluated the nature of its contracts with customers and determined that further disaggregation of revenue from contracts with customers into more granular categories beyond what is presented in the consolidated statements of income was not necessary. The Company generally fully satisfies its performance obligations on its contracts with customers as services are rendered and the transaction prices are typically fixed; charged either on a periodic basis or based on activity. Because performance obligations are satisfied as services are rendered and the transaction prices are fixed, the Company has made no significant judgments in applying the revenue guidance prescribed in ASC Topic 606 that affect the determination of the amount and timing of revenue from contracts with customers.
Accounting Changes, Reclassifications and Restatements—Certain items in prior financial statements have been reclassified to conform to the current presentation. We adopted ASU No. 2023-09, “Income Taxes (Topic 740): Improvements to Income Tax Disclosures” for our annual financial statements in 2025. See Note 11 - Income Taxes.
Accounting Standards Updates
Recent Accounting Standards
ASU 2023-09, “Income Taxes (Topic 740): Improvements to Income Tax Disclosures.” This update requires public business entities on an annual basis to (i) disclose in the rate reconciliation table additional categories of information about federal, state and foreign income taxes, (ii) to provide more details about the reconciling items in some categories if items that meet a quantitative threshold and (iii) disaggregate income taxes paid, net of refunds, by federal, state and foreign taxes based on a quantitative threshold, among other things. ASU 2023-09 became effective for the Company in 2025 and did not have a significant impact on financial statement disclosures. See Note 11, “Income Taxes”.
ASU 2024-03, “Income Statement - Reporting Comprehensive Income - Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses.” This update requires that public businesses disclose in tabular format, disaggregating information about prescribed categories underlying any relevant income statement expense caption. The prescribed categories include, among other things, employee compensation, depreciation and intangible asset amortization. ASU 2024-03 will be effective for the Company, on a prospective basis, for annual reporting periods beginning after December 15, 2026. Early adoption
86

Table of contents
STELLAR BANCORP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
and retrospective application is permitted. ASU 2024-03 is not expected to have a significant impact on the Company’s financial statements.
ASU 2025‑08, “Financial Instruments - Credit Losses (Topic 326): Purchased Loans.” ASU 2025-08 expands the scope of the “gross‑up” method, formerly applicable only to purchased credit‑deteriorated ("PCD") assets, to include acquired non‑PCD loans that meet certain criteria, now referred to as purchased seasoned loans (“PSLs”). Under this model, an allowance for expected credit losses is recognized at acquisition, offsetting the loan’s amortized cost basis, thereby eliminating the day-one credit‑loss expense previously required for non‑PCD assets. PSLs are defined as non‑PCD loans acquired either (i) through a business combination, or (ii) purchased more than 90 days after origination when the acquirer was not involved in origination. ASU 2025-08 will be effective for the Company on a prospective basis for loans acquired on or after the adoption date, for interim and annual reporting periods beginning in 2027, though early adoption is permitted. ASU 2025-08 is not expected to have a significant impact on the Company’s financial statements.
2. GOODWILL AND OTHER INTANGIBLE ASSETS
Changes in the carrying amount of the Company’s goodwill and core deposit intangible assets were as follows:

| Goodwill |  | Core Deposit Intangibles |  | Servicing Assets
| (In thousands)
Balance as of December 31, 2022 | $ | 497,260 |  |  | $ | 143,525 |  |  | $ | 309 |
Amortization | — |  |  | (26,813) |  |  | (70) |
Goodwill true-up | 58 |  |  | — |  |  | — |
Decrease due to payoff of serviced loans | — |  |  | — |  |  | (27) |
Balance as of December 31, 2023 | 497,318 |  |  | 116,712 |  |  | 212 |
Amortization | — |  |  | (24,166) |  |  | (54) |
Decrease due to payoff of serviced loans | — |  |  | — |  |  | (12) |
Balance as of December 31, 2024 | 497,318 |  |  | 92,546 |  |  | 146 |
Amortization | — |  |  | (21,528) |  |  | (52) |
Decrease due to payoff of serviced loans | — |  |  | — |  |  | (24) |
Balance as of December 31, 2025 | $ | 497,318 |  |  | $ | 71,018 |  |  | $ | 70 |

Goodwill represents the excess of the cost of an acquisition over the fair value of the net assets acquired recorded on the acquisition date of an entity. During the measurement period, the Company may record subsequent adjustments to goodwill for provisional amounts recorded at the acquisition date. The merger (the “Merger”) between Allegiance Bancshares, Inc. (“Allegiance”) and CBTX, Inc. (“CBTX”), was effective October 1, 2022. During 2023, the Company completed the final tax returns related to CBTX's business and operations through September 30, 2022. After completion of these tax returns, the Company increased income tax balances and goodwill in the amount of $58 thousand which finalized all purchase accounting adjustments for the Merger.
Goodwill is subject to impairment testing, which must be conducted at least annually or upon the occurrence of a triggering event. Various factors, such as the Company’s results of operations, the trading price of the Company’s common stock relative to the book value per share, macroeconomic conditions and conditions in the banking sector, inform whether a triggering event for an interim goodwill impairment test has occurred. Goodwill is recorded and evaluated for impairment at its reporting unit, the Company.
Testing of goodwill impairment comprises a two-step process. First, the Company performs a qualitative assessment to evaluate relevant events or circumstances to determine whether it is more likely than not that the fair value of a reporting unit is less than it’s carrying amount. If the Company determines that it is more likely than not that an impairment has occurred, it proceeds to the quantitative impairment test, whereby it calculates the fair value of the reporting unit and compares it with it’s carrying amount, including goodwill. In its performance of impairment testing, the Company has the unconditional option to proceed directly to the quantitative impairment test, bypassing the qualitative assessment. If the carrying amount of the reporting unit exceeds the fair value, the amount by which the carrying amount exceeds fair value, up to the carrying value of goodwill, is recorded through earnings as an impairment charge. If the results of the qualitative assessment indicate that it is not more likely than not that an impairment has occurred, or if the quantitative impairment test results in a fair value of the reporting unit that is greater than the carrying amount, then no impairment charge is recorded.
87

Table of contents
STELLAR BANCORP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
The Company’s policy is to test goodwill for impairment annually as of October 1 st, or on an interim basis if an event triggering an impairment assessment is determined to have occurred. The Company performed its annual impairment test and determined no impairment was necessary for the years ended December 31, 2025, 2024 and 2023.
The estimated aggregate future amortization expense for core deposit intangible assets remaining as of December 31, 2025 is as follows (in thousands):

2026 | $ | 18,896 |
2027 | 16,272 |
2028 | 13,244 |
2029 | 9,419 |
Thereafter | 13,187 |
Total | $ | 71,018 |

3. SECURITIES
The amortized cost and fair value of securities available for sale were as follows:

| December 31, 2025
| Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Fair Value
| (In thousands)
Available for Sale |  |  |  |  |  |  |
U.S. government and agency securities | $ | 394,361 |  |  | $ | 497 |  |  | $ | (2,383) |  |  | $ | 392,475 |
Municipal securities | 218,143 |  |  | 627 |  |  | (22,569) |  |  | 196,201 |
Agency mortgage-backed pass-through securities | 831,815 |  |  | 5,548 |  |  | (29,377) |  |  | 807,986 |
Agency collateralized mortgage obligations | 737,627 |  |  | 3,375 |  |  | (43,937) |  |  | 697,065 |
Corporate bonds and other | 108,820 |  |  | 564 |  |  | (4,652) |  |  | 104,732 |
Total | $ | 2,290,766 |  |  | $ | 10,611 |  |  | $ | (102,918) |  |  | $ | 2,198,459 |

| December 31, 2024
| Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Fair Value
| (In thousands)
Available for Sale |  |  |  |  |  |  |
U.S. government and agency securities | $ | 198,962 |  |  | $ | 348 |  |  | $ | (5,707) |  |  | $ | 193,603 |
Municipal securities | 219,545 |  |  | 367 |  |  | (28,459) |  |  | 191,453 |
Agency mortgage-backed pass-through securities | 566,719 |  |  | 3 |  |  | (45,346) |  |  | 521,376 |
Agency collateralized mortgage obligations | 730,861 |  |  | 830 |  |  | (71,328) |  |  | 660,363 |
Corporate bonds and other | 115,601 |  |  | 181 |  |  | (9,561) |  |  | 106,221 |
Total | $ | 1,831,688 |  |  | $ | 1,729 |  |  | $ | (160,401) |  |  | $ | 1,673,016 |

As of December 31, 2025, no allowance for credit losses has been recognized on available for sale securities in an unrealized loss position as management does not believe any of the securities are impaired due to reasons of credit quality. This belief is based upon our analysis of the underlying risk characteristics, including credit ratings, and other qualitative factors related to our available for sale securities and in consideration of our historical credit loss experience and internal forecasts. The issuers of these securities continue to make timely principal and interest payments under the contractual terms of the securities. Furthermore, management does not have the intent to sell any of the securities classified as available for sale in the table above and believes that it is more likely than not that we will not have to sell any such securities before a recovery of cost. The unrealized losses are due to increases in market
88

Table of contents
STELLAR BANCORP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
interest rates over the yields available at the time the underlying securities were purchased. The fair value is expected to recover as the securities approach their maturity date or repricing date or if market yields for such investments decline.
The amortized cost and fair value of investment securities at December 31, 2025, by contractual maturity, are shown below. Expected maturity may differ from contractual maturity if borrowers have the right to call or prepay obligations at any time with or without call or prepayment penalties.

| Amortized Cost |  | Fair Value
| (In thousands)
Due in one year or less | $ | 299,937 |  |  | $ | 299,992 |
Due after one year through five years | 17,231 |  |  | 16,502 |
Due after five years through ten years | 150,356 |  |  | 141,024 |
Due after ten years | 253,800 |  |  | 235,890 |
Subtotal | 721,324 |  |  | 693,408 |
Agency mortgage-backed pass through securities and collateralized mortgage obligations | 1,569,442 |  |  | 1,505,051 |
Total | $ | 2,290,766 |  |  | $ | 2,198,459 |

Securities with unrealized losses segregated by length of time in a continuous loss position are as follows:

| December 31, 2025
| Less than 12 Months |  | More than 12 Months |  | Total
| Estimated Fair Value |  | Unrealized Losses |  | Estimated Fair Value |  | Unrealized Losses |  | Estimated Fair Value |  | Unrealized Losses
| (In thousands)
Available for Sale |  |  |  |  |  |  |  |  |  |  |
U.S. government and agency securities | $ | 185,275 |  |  | $ | (180) |  |  | $ | 51,684 |  |  | $ | (2,203) |  |  | $ | 236,959 |  |  | $ | (2,383) |
Municipal securities | 6,091 |  |  | (725) |  |  | 170,400 |  |  | (21,844) |  |  | 176,491 |  |  | (22,569) |
Agency mortgage-backed pass-through securities | 157,352 |  |  | (1,390) |  |  | 279,693 |  |  | (27,987) |  |  | 437,045 |  |  | (29,377) |
Agency collateralized mortgage obligations | 65,444 |  |  | (1,006) |  |  | 357,857 |  |  | (42,931) |  |  | 423,301 |  |  | (43,937) |
Corporate bonds and other | 21,255 |  |  | (193) |  |  | 50,384 |  |  | (4,459) |  |  | 71,639 |  |  | (4,652) |
Total | $ | 435,417 |  |  | $ | (3,494) |  |  | $ | 910,018 |  |  | $ | (99,424) |  |  | $ | 1,345,435 |  |  | $ | (102,918) |

| December 31, 2024
| Less than 12 Months |  | More than 12 Months |  | Total
| Estimated Fair Value |  | Unrealized Losses |  | Estimated Fair Value |  | Unrealized Losses |  | Estimated Fair Value |  | Unrealized Losses
| (In thousands)
Available for Sale |  |  |  |  |  |  |  |  |  |  |
U.S. government and agency securities | $ | 29,443 |  |  | $ | (576) |  |  | $ | 122,936 |  |  | $ | (5,131) |  |  | $ | 152,379 |  |  | $ | (5,707) |
Municipal securities | 8,512 |  |  | (183) |  |  | 168,132 |  |  | (28,276) |  |  | 176,644 |  |  | (28,459) |
Agency mortgage-backed pass-through securities | 254,169 |  |  | (6,861) |  |  | 265,993 |  |  | (38,485) |  |  | 520,162 |  |  | (45,346) |
Agency collateralized mortgage obligations | 216,422 |  |  | (4,501) |  |  | 317,225 |  |  | (66,827) |  |  | 533,647 |  |  | (71,328) |
Corporate bonds and other | 11,903 |  |  | (1,097) |  |  | 81,027 |  |  | (8,464) |  |  | 92,930 |  |  | (9,561) |
Total | $ | 520,449 |  |  | $ | (13,218) |  |  | $ | 955,313 |  |  | $ | (147,183) |  |  | $ | 1,475,762 |  |  | $ | (160,401) |

During the year ended December 31, 2025, the Company had sales and calls of securities totaling $136.7 million with a realized loss of $3 thousand. During the year ended December 31, 2024, the Company had sales and calls of securities totaling $6.9 million with no gain or loss recorded. During the year ended December 31, 2023, the Company had sales and calls of securities totaling $392.7 million and recorded a net loss of $794 thousand.
89

Table of contents
STELLAR BANCORP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
At December 31, 2025 and 2024, the Company did not own securities of any one issuer, other than the U.S. government and its agencies, in an amount greater than 10% of the consolidated shareholders’ equity at such respective dates.
The carrying value of pledged securities w as $828.5 million and $410.2 million at December 31, 2025 and 2024, respectively. The majority of the securities in each case were pledged to collateralize public fund deposits.
4. LOANS AND ALLOWANCE FOR CREDIT LOSSES
The loan portfolio balances, net of unearned income and fees, consist of various types of loans primarily all made to borrowers located within Texas and segregated by class of loan were as follows:

| December 31,
| 2025 |  | 2024
| (In thousands)
Commercial and industrial | $ | 1,476,559 |  |  | $ | 1,362,260 |
Real estate: |  |  |
Commercial real estate (including multi-family residential) | 3,766,294 |  |  | 3,868,218 |
Commercial real estate construction and land development | 720,779 |  |  | 845,494 |
1-4 family residential (including home equity) | 1,136,227 |  |  | 1,115,484 |
Residential construction | 124,653 |  |  | 157,977 |
Consumer and other | 76,079 |  |  | 90,421 |
Total loans | 7,300,591 |  |  | 7,439,854 |
Allowance for credit losses on loans | (83,629) |  |  | (81,058) |
Loans, net | $ | 7,216,962 |  |  | $ | 7,358,796 |

Loan Origination/Risk Management
The Company has certain lending policies and procedures in place that are designed to maximize loan income within an acceptable level of risk. The Company maintains an independent loan review department that reviews and validates the credit risk program on a periodic basis. In addition, an independent third-party loan review is performed on a quarterly basis. In connection with the reviews of the loan portfolio, the Company considers risk elements attributable to particular loan types or categories in assessing the quality of individual loans. Some of the risk elements include:
Commercial and Industrial Loans—The Company makes commercial and industrial loans in its market area that are underwritten on the basis of the borrower’s ability to service the debt from income. The portfolio includes loans to commercial customers for use in financing working capital needs, equipment purchases and expansions. The loans in this category are repaid primarily from the cash flow of a borrower’s principal business operation. Credit risk in these loans is driven by creditworthiness of a borrower and the economic conditions that impact the cash flow stability from business operations. The Company generally takes as collateral a lien on any available real estate, equipment or other assets owned by the borrower and typically obtains a personal guaranty of the borrower or principal.
Commercial Real Estate—The Company makes loans collateralized by owner-occupied, nonowner-occupied and multi-family real estate to finance the purchase or ownership of real estate.
The Company’s nonowner-occupied and multi-family commercial real estate lending typically involves higher loan principal amounts, and the repayment of these loans is generally dependent on sufficient income from the properties securing the loans to cover operating expenses and debt service. The Company generally requires the borrower to have had an existing relationship with the Company and have a proven record of success. In addition, these loans are generally guaranteed by individual owners of the borrower and have typically lower loan to value ratios.
Loans secured by owner-occupied properties represented 47.7% of the outstanding principal balance of the Company’s commercial real estate loans at December 31, 2025. The Company is dependent on the cash flows of the business occupying the property and its owners and requires these loans generally to be secured by property with adequate margins and guaranteed by the
90

Table of contents
STELLAR BANCORP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
individual owners. The Company’s owner-occupied commercial real estate loans collateralized by first liens on real estate typically have fixed interest rates and amortize over a 10-to-20 year period.
Commercial real estate loans are viewed primarily as cash flow loans and secondarily as loans secured by real estate. Credit risk in these loans may be impacted by the creditworthiness of a borrower, property values and the local economies in the Company’s metropolitan area.
Construction and Land Development Loans—The Company makes loans to finance the construction of nonresidential and residential properties. Construction loans generally are collateralized by first liens on real estate and generally have floating interest rates. Construction and land development real estate loans are usually based upon estimates of costs and estimated value of the completed project and include independent appraisal reviews and a financial analysis of the developers and property owners. The Company generally conducts periodic inspections, either directly or through an agent, prior to approval of periodic draws on these loans. Underwriting guidelines similar to those described above are also used in the Company’s construction lending activities. The Company may be required to fund additional amounts to complete a project and may have to hold the property for an indeterminate period of time. Sources of repayment of these loans may include permanent loans, sales of developed property or an interim loan commitment from the Company until permanent financing is obtained. These loans are considered to be higher risk than other real estate loans due to their ultimate repayment being sensitive to interest rate changes, general economic conditions and the availability of long-term financing. Credit risk in these loans may be impacted by the creditworthiness of a borrower, property values and the local economies in the Company’s metropolitan area.
1-4 Residential Real Estate Loans—The Company’s lending activities also include the origination of 1-4 family residential mortgage loans (including home equity loans) collateralized by owner-occupied residential properties located in the Company’s market areas. The Company offers a variety of mortgage loan portfolio products which have a term of 5 to 7 years and generally amortize over 10 to 30 years. Loans collateralized by 1-4 family residential real estate generally have been originated in amounts of no more th an 90% o f appraised value. Repayment of these loans is primarily dependent on the personal income and credit rating of the borrowers. Credit risk in these loans can be impacted by economic conditions within the Company’s metropolitan area that might impact either property values or a borrower’s personal income. Risk is mitigated by the fact that the loans are of smaller individual amounts and spread over a larger number of borrowers.
Consumer and Other Loans—The Company makes a variety of loans to individuals for personal and household purposes including secured and unsecured installment and term loans. Consumer loans are underwritten based on the individual borrower’s income, current debt level, past credit history and the value of any available collateral. Repayment for these loans will come from a borrower’s income source that are typically independent of the loan purpose. The terms of these loans typically range from 12 to 60 months and vary based upon the nature of collateral and size of loan. Credit risk is driven by consumer economic factors, such as, unemployment and general economic conditions in the Company metropolitan area and the creditworthiness of a borrower.
In addition, for each category, the Company considers secondary sources of income and the financial strength and credit history of the borrower and any guarantors.
Concentrations of Credit
A majority of the Company’s lending activity occurs in and around our market. The Company’s loans are primarily loans secured by real estate, including commercial and residential construction, owner-occupied and nonowner-occupied and multi-family commercial real estate, raw land and other real estate based loans.
Related Party Loans
Related party loans activity for the year ended December 31, 2025 was as follows (in thousands):

Beginning balance on January 1 | $ | 106,234 |
New loans and additions | 52,127 |
Repayments | (43,687) |
Ending balance on December 31 | $ | 114,674 |

91

Table of contents
STELLAR BANCORP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
The related party loans outstanding at December 31, 2025 and 2024 are net of cash collateralized loans of $12.6 million and $22.0 million, respectively.
Nonaccrual and Past Due Loans
An aging analysis of the recorded investment in past due loans, segregated by class of loans, is included below. The Company defines recorded investment as the outstanding loan balances including net deferred loan fees and excluding accrued interest receivable of $27.6 million and $30.4 million as of December 31, 2025 and 2024, respectively, due to immateriality.

| December 31, 2025
| Loans Past Due and Still Accruing |  | Nonaccrual Loans |  | Current Loans |  | Total Loans
| 30-89 Days |  | 90 or More Days |  | Total Past Due Loans |  |  |
| (In thousands)
Commercial and industrial | $ | 6,789 |  |  | $ | — |  |  | $ | 6,789 |  |  | $ | 7,616 |  |  | $ | 1,462,154 |  |  | $ | 1,476,559 |
Real estate: |  |  |  |  |  |  |  |  |  |  |
Commercial real estate (including multi-family residential) | 8,790 |  |  | — |  |  | 8,790 |  |  | 29,271 |  |  | 3,728,233 |  |  | 3,766,294 |
Commercial real estate construction and land development | 2,129 |  |  | — |  |  | 2,129 |  |  | 1,838 |  |  | 716,812 |  |  | 720,779 |
1-4 family residential (including home equity) | 9,285 |  |  | — |  |  | 9,285 |  |  | 13,333 |  |  | 1,113,609 |  |  | 1,136,227 |
Residential construction | — |  |  | — |  |  | — |  |  | 448 |  |  | 124,205 |  |  | 124,653 |
Consumer and other | 35 |  |  | — |  |  | 35 |  |  | 42 |  |  | 76,002 |  |  | 76,079 |
Total loans | $ | 27,028 |  |  | $ | — |  |  | $ | 27,028 |  |  | $ | 52,548 |  |  | $ | 7,221,015 |  |  | $ | 7,300,591 |

| December 31, 2024
| Loans Past Due and Still Accruing |  | Nonaccrual Loans |  | Current Loans |  | Total Loans
| 30-89 Days |  | 90 or More Days |  | Total Past Due Loans |  |  |
| (In thousands)
Commercial and industrial | $ | 6,814 |  |  | $ | — |  |  | $ | 6,814 |  |  | $ | 8,500 |  |  | $ | 1,346,946 |  |  | $ | 1,362,260 |
Real estate: |  |  |  |  |  |  |  |  |  |  |
Commercial real estate (including multi-family residential) | 15,128 |  |  | — |  |  | 15,128 |  |  | 16,459 |  |  | 3,836,631 |  |  | 3,868,218 |
Commercial real estate construction and land development | 1,614 |  |  | — |  |  | 1,614 |  |  | 3,061 |  |  | 840,819 |  |  | 845,494 |
1-4 family residential (including home equity) | 10,684 |  |  | — |  |  | 10,684 |  |  | 9,056 |  |  | 1,095,744 |  |  | 1,115,484 |
Residential construction | 478 |  |  | — |  |  | 478 |  |  | — |  |  | 157,499 |  |  | 157,977 |
Consumer and other | 37 |  |  | — |  |  | 37 |  |  | 136 |  |  | 90,248 |  |  | 90,421 |
Total loans | $ | 34,755 |  |  | $ | — |  |  | $ | 34,755 |  |  | $ | 37,212 |  |  | $ | 7,367,887 |  |  | $ | 7,439,854 |

If interest on nonaccrual loans had been accrued under the original loan terms, approximately $2.5 million and $1.7 million would have been recorded as income for the years ended December 31, 2025 and 2024, respectively.
Credit Quality Indicators
The Company categorizes loans into risk categories based on relevant information about the ability of borrowers to service their debt. The Company utilizes a risk rating matrix to assign a risk rating to each of its loans. Risk ratings are updated on an ongoing basis and are subject to change by continuous loan monitoring processes including lending management monitoring, executive
92

Table of contents
STELLAR BANCORP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
management and board committee oversight, and independent credit review. As part of the ongoing monitoring of the credit quality of the Company’s loan portfolio and methodology for calculating the allowance for credit losses, management assigns and tracks certain risk ratings to be used as credit quality indicators including trends related to (1) the weighted-average risk grade of loans, (2) the level of classified loans, (3) the delinquency status of loans, (4) nonperforming loans and (5) the general economic conditions in our market. On an annual basis, individual bankers, under the oversight of credit administration, review updated financial information for pass grade commercial loans over a defined threshold to reassess the risk grade. When a loan reaches a set of internally designated criteria, including Substandard or higher, a special assets officer will be involved in the monitoring of the loan on an on-going basis.
The following is a general description of the risk ratings used by the Company:
Pass—Credits in this category contain an acceptable amount of risk.
Special Mention—Loans classified as special mention have a potential weakness that deserves management’s close attention. If left uncorrected, these potential weaknesses may result in the deterioration of the repayment prospects for the loan or of the institution’s credit position at some future date. They are characterized by the distinct possibility that the institution will sustain some loss if the deficiencies are not corrected.
Substandard—Loans classified as substandard have well-defined weaknesses on a continuing basis and are inadequately protected by the current net worth and paying capacity of the borrower, declining collateral values, or a continuing downturn in their industry which is reducing their profits to below zero and having a significantly negative impact on their cash flow. These loans so classified are characterized by the distinct possibility that the institution will sustain some loss if the deficiencies are not corrected.
Doubtful—Loans classified as doubtful have all the weaknesses inherent in those classified as substandard with the added characteristic that the weaknesses make collection or liquidation in full based on currently existing facts, conditions and values, highly questionable and improbable.
Loss—Loans classified as loss are to be charged-off or charged-down when payment is acknowledged to be uncertain or when the timing or value of payments cannot be determined. “Loss” is not intended to imply that the loan or some portion of it will never be paid, nor does it in any way imply that there has been a forgiveness of debt.
93

Table of contents
STELLAR BANCORP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
The following table presents risk ratings by category and the gross charge-offs by primary loan type and year of origination or renewal. Generally, current period renewals of credit are re-underwritten at the point of renewal and considered current period originations for purposes of the table below. The following summarizes the amortized cost basis of loans by year of origination/renewal and credit quality indicator by class of loan as of December 31, 2025 and 2024:

| December 31, 2025 |  | December 31, 2024
| Term Loans Amortized Cost Basis by Origination Year |  | Revolving Loans |  | Revolving Loans Converted to Term Loans |  | Total |  | Total
| 2025 |  | 2024 |  | 2023 |  | 2022 |  | 2021 |  | Prior |  |  |  |
| (In thousands)
Commercial and industrial |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Pass | $ | 341,957 |  |  | $ | 176,253 |  |  | $ | 132,921 |  |  | $ | 97,544 |  |  | $ | 67,133 |  |  | $ | 16,667 |  |  | $ | 560,236 |  |  | $ | 45,930 |  |  | $ | 1,438,641 |  |  | $ | 1,321,977 |
Special Mention | 21 |  |  | 1,298 |  |  | 1,459 |  |  | 149 |  |  | 625 |  |  | 545 |  |  | 712 |  |  | 19 |  |  | 4,828 |  |  | 6,266 |
Substandard | 1,491 |  |  | 1,656 |  |  | 2,448 |  |  | 7,886 |  |  | 445 |  |  | 9,813 |  |  | 4,915 |  |  | 4,436 |  |  | 33,090 |  |  | 34,017 |
Doubtful | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Total commercial and industrial loans | $ | 343,469 |  |  | $ | 179,207 |  |  | $ | 136,828 |  |  | $ | 105,579 |  |  | $ | 68,203 |  |  | $ | 27,025 |  |  | $ | 565,863 |  |  | $ | 50,385 |  |  | $ | 1,476,559 |  |  | $ | 1,362,260 |
Current period gross charge-offs | $ | — |  |  | $ | 1,108 |  |  | $ | 252 |  |  | $ | 577 |  |  | $ | 57 |  |  | $ | 70 |  |  | $ | — |  |  | $ | 1,106 |  |  | $ | 3,170 |  |  |
Commercial real estate (including multi-family residential) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Pass | $ | 666,669 |  |  | $ | 274,149 |  |  | $ | 331,691 |  |  | $ | 1,133,697 |  |  | $ | 605,637 |  |  | $ | 426,785 |  |  | $ | 117,971 |  |  | $ | 23,665 |  |  | $ | 3,580,264 |  |  | $ | 3,671,749 |
Special Mention | 15,986 |  |  | 148 |  |  | 9,620 |  |  | 27,453 |  |  | 6,573 |  |  | 16,482 |  |  | 298 |  |  | — |  |  | 76,560 |  |  | 99,165 |
Substandard | 12,939 |  |  | 12,919 |  |  | 10,317 |  |  | 23,889 |  |  | 32,027 |  |  | 16,749 |  |  | 145 |  |  | 485 |  |  | 109,470 |  |  | 97,304 |
Doubtful | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Total commercial real estate (including multi-family residential) | $ | 695,594 |  |  | $ | 287,216 |  |  | $ | 351,628 |  |  | $ | 1,185,039 |  |  | $ | 644,237 |  |  | $ | 460,016 |  |  | $ | 118,414 |  |  | $ | 24,150 |  |  | $ | 3,766,294 |  |  | $ | 3,868,218 |
Current period gross charge-offs | $ | — |  |  | $ | — |  |  | $ | 116 |  |  | $ | — |  |  | $ | 363 |  |  | $ | 111 |  |  | $ | — |  |  | $ | — |  |  | $ | 590 |  |  |
Commercial real estate construction and land development |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Pass | $ | 308,092 |  |  | $ | 158,585 |  |  | $ | 55,588 |  |  | $ | 91,579 |  |  | $ | 38,571 |  |  | $ | 4,878 |  |  | $ | 40,824 |  |  | $ | 5,618 |  |  | $ | 703,735 |  |  | $ | 828,418 |
Special Mention | 9,785 |  |  | — |  |  | 798 |  |  | 810 |  |  | 530 |  |  | 628 |  |  | — |  |  | — |  |  | 12,551 |  |  | 8,911 |
Substandard | 898 |  |  | 937 |  |  | 1,738 |  |  | 342 |  |  | 327 |  |  | 77 |  |  | — |  |  | 174 |  |  | 4,493 |  |  | 8,165 |
Doubtful | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Total commercial real estate construction and land development | $ | 318,775 |  |  | $ | 159,522 |  |  | $ | 58,124 |  |  | $ | 92,731 |  |  | $ | 39,428 |  |  | $ | 5,583 |  |  | $ | 40,824 |  |  | $ | 5,792 |  |  | $ | 720,779 |  |  | $ | 845,494 |
Current period gross charge-offs | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 309 |  |  | $ | — |  |  | $ | — |  |  | $ | 24 |  |  | $ | 129 |  |  | $ | 462 |  |  |

94

Table of contents
STELLAR BANCORP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

| December 31, 2025 |  | December 31, 2024
| Term Loans Amortized Cost Basis by Origination Year |  | Revolving Loans |  | Revolving Loans Converted to Term Loans |  | Total |  | Total
| 2025 |  | 2024 |  | 2023 |  | 2022 |  | 2021 |  | Prior |  |  |  |
| (In thousands)
1-4 family residential (including home equity) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Pass | $ | 148,638 |  |  | $ | 142,890 |  |  | $ | 151,362 |  |  | $ | 247,872 |  |  | $ | 169,704 |  |  | $ | 142,464 |  |  | $ | 75,383 |  |  | $ | 17,276 |  |  | $ | 1,095,589 |  |  | $ | 1,073,277 |
Special Mention | 533 |  |  | 793 |  |  | 3,158 |  |  | 2,591 |  |  | 1,612 |  |  | 480 |  |  | 2,088 |  |  | 150 |  |  | 11,405 |  |  | 10,326 |
Substandard | 1,257 |  |  | 417 |  |  | 1,517 |  |  | 7,145 |  |  | 6,425 |  |  | 7,720 |  |  | 3,720 |  |  | 1,032 |  |  | 29,233 |  |  | 31,881 |
Doubtful | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Total 1-4 family residential (including home equity) | $ | 150,428 |  |  | $ | 144,100 |  |  | $ | 156,037 |  |  | $ | 257,608 |  |  | $ | 177,741 |  |  | $ | 150,664 |  |  | $ | 81,191 |  |  | $ | 18,458 |  |  | $ | 1,136,227 |  |  | $ | 1,115,484 |
Current period gross charge-offs | $ | — |  |  | $ | 273 |  |  | $ | 32 |  |  | $ | — |  |  | $ | 68 |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 373 |  |  |
Residential construction |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Pass | $ | 72,186 |  |  | $ | 22,320 |  |  | $ | 29,322 |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 123,828 |  |  | $ | 151,742 |
Special Mention | — |  |  | — |  |  | — |  |  | — |  |  | 377 |  |  | — |  |  | — |  |  | — |  |  | 377 |  |  | 321 |
Substandard | 154 |  |  | 294 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 448 |  |  | 5,914 |
Doubtful | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Total residential construction | $ | 72,340 |  |  | $ | 22,614 |  |  | $ | 29,322 |  |  | $ | — |  |  | $ | 377 |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 124,653 |  |  | $ | 157,977 |
Current period gross charge-offs | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  |
Consumer and other |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Pass | $ | 40,295 |  |  | $ | 7,957 |  |  | $ | 5,568 |  |  | $ | 3,374 |  |  | $ | 2,425 |  |  | $ | 111 |  |  | $ | 14,812 |  |  | $ | 1,437 |  |  | $ | 75,979 |  |  | $ | 90,143 |
Special Mention | — |  |  | — |  |  | — |  |  | — |  |  | 6 |  |  | — |  |  | — |  |  | — |  |  | 6 |  |  | 16 |
Substandard | 7 |  |  | 25 |  |  | 21 |  |  | 29 |  |  | — |  |  | — |  |  | — |  |  | 12 |  |  | 94 |  |  | 262 |
Doubtful | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Total consumer and other | $ | 40,302 |  |  | $ | 7,982 |  |  | $ | 5,589 |  |  | $ | 3,403 |  |  | $ | 2,431 |  |  | $ | 111 |  |  | $ | 14,812 |  |  | $ | 1,449 |  |  | $ | 76,079 |  |  | $ | 90,421 |
Current period gross charge-offs | $ | 57 |  |  | $ | 10 |  |  | $ | 19 |  |  | $ | 59 |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 145 |  |  |
Total loans |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Pass | $ | 1,577,837 |  |  | $ | 782,154 |  |  | $ | 706,452 |  |  | $ | 1,574,066 |  |  | $ | 883,470 |  |  | $ | 590,905 |  |  | $ | 809,226 |  |  | $ | 93,926 |  |  | $ | 7,018,036 |  |  | $ | 7,137,306 |
Special Mention | 26,325 |  |  | 2,239 |  |  | 15,035 |  |  | 31,003 |  |  | 9,723 |  |  | 18,135 |  |  | 3,098 |  |  | 169 |  |  | 105,727 |  |  | 125,005 |
Substandard | 16,746 |  |  | 16,248 |  |  | 16,041 |  |  | 39,291 |  |  | 39,224 |  |  | 34,359 |  |  | 8,780 |  |  | 6,139 |  |  | 176,828 |  |  | 177,543 |
Doubtful | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Total loans | $ | 1,620,908 |  |  | $ | 800,641 |  |  | $ | 737,528 |  |  | $ | 1,644,360 |  |  | $ | 932,417 |  |  | $ | 643,399 |  |  | $ | 821,104 |  |  | $ | 100,234 |  |  | $ | 7,300,591 |  |  | $ | 7,439,854 |
Total current period gross charge-offs | $ | 57 |  |  | $ | 1,391 |  |  | $ | 419 |  |  | $ | 945 |  |  | $ | 488 |  |  | $ | 181 |  |  | $ | 24 |  |  | $ | 1,235 |  |  | $ | 4,740 |  |  |

95

Table of contents
STELLAR BANCORP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
The following table presents the activity in the allowance for credit losses on loans by portfolio type for the years ended December 31, 2025, 2024 and 2023:

| Commercial and Industrial |  | Commercial Real Estate (including Multi-Family Residential) |  | Commercial Real Estate Construction and Land Development |  | 1-4 Family Residential (including Home Equity) |  | Residential Construction |  | Consumer and Other |  | Total
| (In thousands)
Allowance for credit losses on loans: |  |  |  |  |  |  |  |  |  |  |  |  |
Balance December 31, 2024 | $ | 28,847 |  |  | $ | 29,833 |  |  | $ | 16,383 |  |  | $ | 3,320 |  |  | $ | 1,565 |  |  | $ | 1,110 |  |  | $ | 81,058 |
Provision for (reversal of) credit losses on loans | 6,799 |  |  | 2,616 |  |  | (2,701) |  |  | 267 |  |  | (343) |  |  | (304) |  |  | 6,334 |
Charge-offs | (3,170) |  |  | (590) |  |  | (462) |  |  | (373) |  |  | — |  |  | (145) |  |  | (4,740) |
Recoveries | 706 |  |  | 14 |  |  | — |  |  | — |  |  | — |  |  | 257 |  |  | 977 |
Net charge-offs | (2,464) |  |  | (576) |  |  | (462) |  |  | (373) |  |  | — |  |  | 112 |  |  | (3,763) |
Balance December 31, 2025 | $ | 33,182 |  |  | $ | 31,873 |  |  | $ | 13,220 |  |  | $ | 3,214 |  |  | $ | 1,222 |  |  | $ | 918 |  |  | $ | 83,629 |
Allowance for credit losses on loans: |  |  |  |  |  |  |  |  |  |  |  |  |
Balance December 31, 2023 | $ | 31,979 |  |  | $ | 38,187 |  |  | $ | 13,627 |  |  | $ | 4,785 |  |  | $ | 2,623 |  |  | $ | 483 |  |  | $ | 91,684 |
Provision for (reversal of) credit losses on loans | 2,719 |  |  | (7,698) |  |  | 2,756 |  |  | (1,469) |  |  | (1,058) |  |  | 786 |  |  | (3,964) |
Charge-offs | (7,300) |  |  | (786) |  |  | — |  |  | (2) |  |  | — |  |  | (171) |  |  | (8,259) |
Recoveries | 1,449 |  |  | 130 |  |  | — |  |  | 6 |  |  | — |  |  | 12 |  |  | 1,597 |
Net charge-offs | (5,851) |  |  | (656) |  |  | — |  |  | 4 |  |  | — |  |  | (159) |  |  | (6,662) |
Balance December 31, 2024 | $ | 28,847 |  |  | $ | 29,833 |  |  | $ | 16,383 |  |  | $ | 3,320 |  |  | $ | 1,565 |  |  | $ | 1,110 |  |  | $ | 81,058 |
Allowance for credit losses on loans: |  |  |  |  |  |  |  |  |  |  |  |  |
Balance December 31, 2022 | $ | 41,236 |  |  | $ | 32,970 |  |  | $ | 14,121 |  |  | $ | 2,709 |  |  | $ | 1,796 |  |  | $ | 348 |  |  | $ | 93,180 |
Provision for (reversal of) credit losses on loans | 120 |  |  | 5,201 |  |  | (494) |  |  | 3,592 |  |  | 827 |  |  | 379 |  |  | 9,625 |
Charge-offs | (10,600) |  |  | — |  |  | — |  |  | (1,525) |  |  | — |  |  | (291) |  |  | (12,416) |
Recoveries | 1,223 |  |  | 16 |  |  | — |  |  | 9 |  |  | — |  |  | 47 |  |  | 1,295 |
Net charge-offs | (9,377) |  |  | 16 |  |  | — |  |  | (1,516) |  |  | — |  |  | (244) |  |  | (11,121) |
Balance December 31, 2023 | $ | 31,979 |  |  | $ | 38,187 |  |  | $ | 13,627 |  |  | $ | 4,785 |  |  | $ | 2,623 |  |  | $ | 483 |  |  | $ | 91,684 |

Collateral Dependent Loans
Collateral dependent loans are secured by real estate assets, accounts receivable, inventory and equipment. For a collateral dependent loan, the Company’s evaluation process includes a valuation by appraisal or other collateral analysis adjusted for selling costs, when appropriate. This valuation is compared to the remaining outstanding principal balance of the loan and any loss is included in the allowance for credit losses on loans as a specific allocation. The allowance for credit losses on collateral dependent loans was $7.0 million and $2.0 million as of December 31, 2025 and 2024, respectively.
96

Table of contents
STELLAR BANCORP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
The following tables present the amortized cost basis of collateral dependent loans, which are individually evaluated to determine expected credit losses as of December 31, 2025 and 2024:

| December 31, 2025
| Real Estate |  | Business Assets |  | Other |  | Total
| (In thousands)
Commercial and industrial | $ | — |  |  | $ | 4,390 |  |  | $ | — |  |  | $ | 4,390 |
Real estate: |  |  |  |  |  |  |
Commercial real estate (including multi-family residential) | 28,194 |  |  | — |  |  | — |  |  | 28,194 |
Commercial real estate construction and land development | 1,838 |  |  | — |  |  | — |  |  | 1,838 |
1-4 family residential (including home equity) | 10,944 |  |  | — |  |  | — |  |  | 10,944 |
Residential construction | 448 |  |  | — |  |  | — |  |  | 448 |
Consumer and other | — |  |  | — |  |  | — |  |  | — |
Total | $ | 41,424 |  |  | $ | 4,390 |  |  | $ | — |  |  | $ | 45,814 |

| December 31, 2024
| Real Estate |  | Business Assets |  | Other |  | Total
| (In thousands)
Commercial and industrial | $ | — |  |  | $ | 13,654 |  |  | $ | — |  |  | $ | 13,654 |
Real estate: |  |  |  |  |  |  |
Commercial real estate (including multi-family residential) | 3,552 |  | — |  |  | — |  |  | 3,552 |
Commercial real estate construction and land development | 577 |  |  | — |  |  | — |  |  | 577 |
1-4 family residential (including home equity) | 13,412 |  |  | — |  |  | — |  |  | 13,412 |
Residential construction | — |  |  | — |  |  | — |  |  | — |
Consumer and other | — |  |  | — |  |  | 56 |  |  | 56 |
Total | $ | 17,541 |  |  | $ | 13,654 |  |  | $ | 56 |  |  | $ | 31,251 |

Nonaccrual Loans
The following table presents additional information regarding nonaccrual loans. No interest income was recognized on nonaccrual loans for the years ended December 31, 2025 and 2024, respectively.

| December 31, 2025
| Nonaccrual Loans with No Related Allowance |  | Nonaccrual Loans with Related Allowance |  | Total Nonaccrual Loans
| (In thousands)
Commercial and industrial | $ | 2,291 |  |  | $ | 5,325 |  |  | $ | 7,616 |
Real estate: |  |  |  |  |
Commercial real estate (including multi-family residential) | 15,489 |  |  | 13,782 |  |  | 29,271 |
Commercial real estate construction and land development | 1,838 |  |  | — |  |  | 1,838 |
1-4 family residential (including home equity) | 8,170 |  |  | 5,163 |  |  | 13,333 |
Residential construction | 448 |  |  | — |  |  | 448 |
Consumer and other | — |  |  | 42 |  |  | 42 |
Total loans | $ | 28,236 |  |  | $ | 24,312 |  |  | $ | 52,548 |

97

Table of contents
STELLAR BANCORP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

| December 31, 2024
| Nonaccrual Loans with No Related Allowance |  | Nonaccrual Loans with Related Allowance |  | Total Nonaccrual Loans
| (In thousands)
Commercial and industrial | $ | 4,835 |  |  | $ | 3,665 |  |  | $ | 8,500 |
Real estate: |  |  |  |  |
Commercial real estate (including multi-family residential) | 11,711 |  |  | 4,748 |  |  | 16,459 |
Commercial real estate construction and land development | 633 |  |  | 2,428 |  |  | 3,061 |
1-4 family residential (including home equity) | 6,834 |  |  | 2,222 |  |  | 9,056 |
Residential construction | — |  |  | — |  |  | — |
Consumer and other | 80 |  |  | 56 |  |  | 136 |
Total loans | $ | 24,093 |  |  | $ | 13,119 |  |  | $ | 37,212 |

Loan Modifications
Loan modifications are reported if concessions have been granted to borrowers that are experiencing financial difficulty. The percentage of loans modified comprised less than 1% of their respective classes of loan portfolios at December 31, 2025. The following table presents information regarding the period-end balance of loans that were modified to borrowers experiencing financial difficulty during the years ended December 31, 2025 and 2024. As of December 31, 2025, the Company had $335 thousand of commitments to lend additional funds to these borrowers.

| Year Ended December 31, 2025
| Interest Rate Reduction |  | Term Extension |  | Payment Delay |  | Principal Forgiveness |  | Combination Term Extension and Payment Delay |  | Combination Term Extension and Interest Rate Reduction |  | Total
| (In thousands)
Commercial and industrial | $ | — |  |  | $ | 2,652 |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 283 |  |  | $ | 2,935 |
Real estate: |  |  |  |  |  |  |  |  |  |  |  |  |
Commercial real estate (including multi-family residential) | — |  | — |  | — |  | — |  | — |  | — |  | —
Commercial real estate construction and land development | — |  | 174 |  | — |  | — |  | — |  | — |  | 174
1-4 family residential (including home equity) | — |  | — |  | — |  | — |  | — |  | — |  | —
Residential construction | — |  | — |  | — |  | — |  | — |  | — |  | —
Consumer and other | — |  | — |  | — |  | — |  | — |  | — |  | —
Total | $ | — |  |  | $ | 2,826 |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 283 |  |  | $ | 3,109 |

98

Table of contents
STELLAR BANCORP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

| Year Ended December 31, 2024
| Interest Rate Reduction |  | Term Extension |  | Payment Delay |  | Principal Forgiveness |  | Combination Term Extension and Payment Delay |  | Combination Term Extension and Interest Rate Reduction |  | Total
| (In thousands)
Commercial and industrial | $ | — |  |  | $ | 1,091 |  |  | $ | 780 |  |  | $ | — |  |  | $ | — |  |  | $ | 1,389 |  |  | $ | 3,260 |
Real estate: |  |  |  |  |  |  |  |  |  |  |  |  |
Commercial real estate (including multi-family residential) | — |  | — |  | 3,040 |  | — |  | — |  | 1,467 |  | 4,507
Commercial real estate construction and land development | — |  | 1,103 |  | 1,428 |  | — |  | — |  | 2,458 |  | 4,989
1-4 family residential (including home equity) | — |  | 1,080 |  | 385 |  | — |  | — |  | 499 |  | 1,964
Residential construction | — |  | 412 |  | — |  | — |  | — |  | — |  | 412
Consumer and other | — |  | — |  | — |  | — |  | — |  | — |  | —
Total | $ | — |  |  | $ | 3,686 |  |  | $ | 5,633 |  |  | $ | — |  |  | $ | — |  |  | $ | 5,813 |  |  | $ | 15,132 |

The following table summarizes, by loan portfolio, the financial effect of the Company’s loan modifications for the years ended December 31, 2025 and 2024:

|  | Year Ended December 31, 2025 |  | Year Ended December 31, 2024
|  | Weighted-Average Term Extension |  | Weighted-Average Interest Rate Reduction |  | Weighted-Average Term Extension |  | Weighted-Average Interest Rate Reduction
|  | (Months) |  |  |  | (Months) |  |
Commercial and industrial |  | 15 |  | — | % |  | 6 |  | — | %
Real estate: |  |  |  |  |  |  |  |
Commercial real estate (including multi-family residential) |  | — |  | — | % |  | — |  | — | %
Commercial real estate construction and land development |  | 12 |  | — | % |  | 17 |  | — | %
1-4 family residential (including home equity) |  | — |  | — | % |  | — |  | — | %
Residential construction |  |  |  | — | % |  | 6 |  | — | %
Consumer and other |  | — |  | — | % |  | — |  | — | %

99

Table of contents
STELLAR BANCORP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
The following table summarizes loans that had a payment default, determined as 90 or more days past due, that were modified due to the borrowers experiencing financial difficulty during the twelve-month periods indicated:

| December 31, 2025 |  | December 31, 2024
| Term Extension |  | Payment Delay |  | Combination |  | Term Extension |  | Payment Delay |  | Combination
| (In thousands)
Commercial and industrial | $ | 402 |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 260 |
Real estate: |  |  |  |  |  |  |  |  |  |  |
Commercial real estate (including multi-family residential) | — |  | — |  | — |  | — |  | — |  | —
Commercial real estate construction and land development | — |  | — |  | — |  | — |  | — |  | —
1-4 family residential (including home equity) | — |  | — |  | — |  | — |  | 385 |  | —
Residential construction | — |  | — |  | — |  | — |  | — |  | —
Consumer and other | — |  | — |  | — |  | — |  | — |  | —
Total | $ | 402 |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 385 |  |  | $ | 260 |

5. PREMISES AND EQUIPMENT AND LEASES
Premises and equipment were summarized as follows for the dates indicated below:

| December 31,
| 2025 |  | 2024
| (In thousands)
Land | $ | 21,229 |  |  | $ | 21,081 |
Buildings | 72,965 |  |  | 72,168 |
Lease right-of-use assets | 15,327 |  |  | 17,278 |
Leasehold improvements | 10,568 |  |  | 10,608 |
Furniture, fixtures and equipment | 27,800 |  |  | 25,853 |
Construction in progress | 293 |  |  | 161 |
Total | 148,182 |  |  | 147,149 |
Less: accumulated depreciation | 42,064 |  |  | 35,293 |
Premises and equipment, net | $ | 106,118 |  |  | $ | 111,856 |

Depreciation expense was $8.1 million, $7.8 million and $7.6 million for the years ended December 31, 2025, 2024 and 2023, respectively.
Leases
At December 31, 2025, the Company had 30 operating leases consisting of branch locations, office facilities and equipment. The lease right-of-use asset is classified within premises and equipment and the lease liability is included in other liabilities on the balance sheet. The Company also owns certain office facilities which it leases to outside parties under operating lessor leases; however, such leases are not significant. There were no sale and leaseback transactions, leveraged leases or lease transactions with related parties during the years ended December 31, 2025 and 2024.
100

Table of contents
STELLAR BANCORP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
Supplemental lease information at the dates indicated was as follows:

| December 31,
| 2025 |  | 2024
| (Dollars in thousands)
Balance Sheet: |  |  |
Operating lease right-of-use asset classified as premises and equipment | $ | 15,327 |  | $ | 17,279
Operating lease liability classified as other liabilities | $ | 16,308 |  | $ | 18,273
Weighted-average lease term, in years | 6.74 |  | 7.24
Weighted-average discount rate | 4.35 | % |  | 4.28 | %

Lease costs for the dates indicated were as follows:

| For the Years Ended December 31,
| 2025 |  | 2024 |  | 2023
| (In thousands)
Income Statement: |  |  |  |  |
Operating lease cost | $ | 6,981 |  |  | $ | 7,434 |  |  | $ | 7,327 |
Short-term lease cost | 25 |  |  | 21 |  |  | 25 |
Total operating lease costs | $ | 7,006 |  |  | $ | 7,455 |  |  | $ | 7,352 |

The following table summarizes the contractual maturity of the Company’s lease liabilities as of the dates indicated below:

| December 31,
| 2025 |  | 2024
| (In thousands)
Lease payments due: |  |  |
Within one year | $ | 4,095 |  |  | $ | 4,140 |
After one but within two years | 3,917 |  |  | 3,739 |
After two but within three years | 3,756 |  |  | 3,578 |
After three but within four years | 2,000 |  |  | 3,414 |
After four but within five years | 1,030 |  |  | 1,656 |
After five years | 4,410 |  |  | 5,189 |
Total lease payments | 19,208 |  |  | 21,716 |
Discount on cash flows | (2,900) |  |  | (3,443) |
Total lease liability | $ | 16,308 |  |  | $ | 18,273 |

6. FAIR VALUE
The Company uses fair value measurements to record fair value adjustments to certain assets and to determine fair value disclosures. Fair value represents the estimated exchange price that would be received from selling an asset or paid to transfer a liability, otherwise known as an “exit price” in the principal or most advantageous market available to the entity in an orderly transaction between market participants on the measurement date.
Fair Value Hierarchy
Fair value is the exchange price that would be received for an asset or paid to transfer a liability (exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. The Company groups financial assets and financial liabilities measured at fair value in three levels, based on the markets in which the assets and liabilities are traded and the reliability of the assumptions used to determine fair value. These levels are:
101

Table of contents
STELLAR BANCORP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
•Level 1—Quoted prices for identical assets or liabilities in active markets that the entity has the ability to access as of the measurement date.
•Level 2—Significant other observable inputs other than Level 1 prices such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data.
•Level 3—Significant unobservable inputs that reflect management’s judgment and assumptions that market participants would use in pricing an asset or liability that are supported by little or no market activity.
In general, fair value is based upon quoted market prices, where available. If such quoted market prices are not available, fair value is based upon internally developed models that primarily use, as inputs, observable market-based parameters. Valuation adjustments may be made to ensure that financial instruments are recorded at fair value. These adjustments may include amounts to reflect counterparty credit quality and our creditworthiness, among other things, as well as unobservable parameters. Any such valuation adjustments are applied consistently over time. Our valuation methodologies may produce a fair value calculation that may not be indicative of net realizable value or reflective of future fair values. While management believes our valuation methodologies are appropriate and consistent with other market participants, the use of different methodologies or assumptions to determine the fair value of certain financial instruments could result in a different estimate of fair value at the reporting date. Furthermore, the reported fair value amounts have not been comprehensively revalued since the presentation dates, and therefore, estimates of fair value after the balance sheet date may differ significantly from the amounts presented herein. A more detailed description of the valuation methodologies used for certain assets and liabilities measured at fair value is set forth below.
The carrying amounts and estimated fair values of financial instruments on the balance sheet were as follows:

| December 31, 2025
| Carrying Amount |  | Estimated Fair Value
|  | Level 1 |  | Level 2 |  | Level 3 |  | Total
| (In thousands)
Financial assets: |  |  |  |  |  |  |  |  |
Cash and cash equivalents | $ | 419,453 |  |  | $ | 419,453 |  |  | $ | — |  |  | $ | — |  |  | $ | 419,453 |
Available for sale securities | 2,198,459 |  |  | — |  |  | 2,198,459 |  |  | — |  |  | 2,198,459 |
Loans held for investment, net of allowance | 7,216,962 |  |  | — |  |  | — |  |  | 7,203,747 |  |  | 7,203,747 |
Accrued interest receivable | 35,869 |  |  | 294 |  |  | 7,950 |  |  | 27,625 |  |  | 35,869 |
Financial liabilities: |  |  |  |  |  |  |  |  |
Deposits | $ | 9,021,466 |  |  | $ | — |  |  | $ | 9,019,219 |  |  | $ | — |  |  | $ | 9,019,219 |
Accrued interest payable | 5,508 |  |  | — |  |  | 5,508 |  |  | — |  |  | 5,508 |
Subordinated debt | 40,226 |  |  | — |  |  | 40,473 |  |  | — |  |  | 40,473 |

| December 31, 2024
| Carrying Amount |  | Estimated Fair Value
|  | Level 1 |  | Level 2 |  | Level 3 |  | Total
| (In thousands)
Financial assets: |  |  |  |  |  |  |  |  |
Cash and cash equivalents | $ | 911,216 |  |  | $ | 911,216 |  |  | $ | — |  |  | $ | — |  |  | $ | 911,216 |
Available for sale securities | 1,673,016 |  |  | — |  |  | 1,673,016 |  |  | — |  |  | 1,673,016 |
Loans held for investment, net of allowance | 7,358,796 |  |  | — |  |  | — |  |  | 7,223,895 |  |  | 7,223,895 |
Accrued interest receivable | 37,884 |  |  | 330 |  |  | 7,197 |  |  | 30,357 |  |  | 37,884 |
Financial liabilities: |  |  |  |  |  |  |  |  |
Deposits | $ | 9,128,384 |  |  | $ | — |  |  | $ | 9,128,234 |  |  | $ | — |  |  | $ | 9,128,234 |
Accrued interest payable | 17,052 |  |  | — |  |  | 17,052 |  |  | — |  |  | 17,052 |
Borrowed funds | — |  |  | — |  |  | — |  |  | — |  |  | — |
Subordinated debt | 70,105 |  |  | — |  |  | 68,963 |  |  | — |  |  | 68,963 |

102

Table of contents
STELLAR BANCORP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
The fair value estimates presented herein are based on pertinent information available to management as of the dates indicated. The following is a description of valuation methodologies used for assets and liabilities recorded at fair value, non-financial assets and non-financial liabilities and for estimating fair value for financial instruments not recorded at fair value:
Cash and Cash Equivalents—The carrying amount is a reasonable estimate of fair value for these short-term instruments. The Company classifies the estimated fair value of these instruments as Level 1.
Available for Sale Securities—Fair values for available for sale securities are based upon quoted market prices, if available, and are considered Level 1 inputs. For all other available for sale securities, if quoted prices are not available, fair values are measured based on market prices for similar securities and are considered Level 2 inputs. For these securities, the Company generally obtains fair value measurements from an independent pricing service. The fair value measurements consider observable data that may include dealer quotes, market spreads, cash flows, the U.S. Treasury yield curve, live trading levels, trade execution data, market consensus prepayment speeds, credit information and the bond’s terms and conditions, among other things. For securities where quoted prices or market prices of similar securities are not available, fair values are calculated using discounted cash flows or other market indicators and are considered Level 3 inputs. Available for sale securities are recorded at fair value on a recurring basis.
Loans—The estimated fair value approximates carrying value for variable-rate loans that reprice frequently and that have no significant change in credit risk resulting in a Level 3 classification. Fair values for fixed-rate loans and variable rate loans which reprice infrequently are estimated by discounting future cash flows. In accordance with ASU 2016-01, the discount rates used to determine the fair value of loans used interest rate spreads that reflect factors such as liquidity, credit and nonperformance risk of the loans.
Deposits—The fair value of demand deposits (e.g., interest and noninterest checking, savings and certain types of money market deposits) is the amount payable on demand at the reporting date (i.e., their carrying amount) resulting in a Level 2 classification. The fair value of fixed rate certificates of deposit is estimated using a discounted cash flows calculation that applies interest rates currently offered on certificates of deposit to a schedule of aggregated expected monthly maturities on time deposits resulting in a Level 2 classification.
Accrued Interest—The carrying amounts of accrued interest approximate their fair values resulting in a Level 1, 2 or 3 classification.
Borrowed Funds—The fair value of the Company’s borrowed funds is estimated using discounted cash flow analyses based on the current borrowing rates for similar types of borrowing arrangements and are measured utilizing Level 2 inputs.
Subordinated Debt—The fair values of subordinated debentures and notes are estimated using discounted cash flow analyses based on the Company’s current borrowing rates for similar types of borrowing arrangements and are measured utilizing Level 2 inputs.
Interest Rate Swaps, Interest Rate Caps and Credit Risk Participation Agreements—Fair value measurements for interest rate swaps, interest rate caps and credit participation agreements are obtained from an independent pricing service which uses the income approach. The income approach calls for the utilization of valuation techniques to convert future cash flows as due to be exchanged per the terms of the financial instrument, into a single present value amount. Measurement is based on the value indicated by the market expectations about those future amounts as of the measurement date. The proprietary curves of the independent pricing service utilize pricing models derived from industry standard analytic tools, considering both Level 1 and Level 2 inputs. Interest rate swaps and interest rate caps are classified as Level 2 and credit participation agreements are classified on as Level 3 and they all are recorded at fair value on a recurring basis.
Off-balance sheet instruments—The fair values of off-balance sheet commitments to extend credit and standby letters of credit financial instruments are based on fees currently charged to enter into similar agreements, taking into account the remaining terms of the agreements and the counterparties’ credit standing. The Company has reviewed the unfunded portion of commitments to extend credit as well as standby and other letters of credit and has determined that the fair value of such financial instruments is not material.
103

Table of contents
STELLAR BANCORP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
Financial assets and liabilities measured at fair value on a recurring basis were as follows:

| December 31, 2025
| Level 1 |  | Level 2 |  | Level 3 |  | Total
| (In thousands)
Financial assets: |  |  |  |  |  |  |
Available for sale securities: |  |  |  |  |  |  |
U.S. government and agency securities | $ | — |  |  | $ | 392,475 |  |  | $ | — |  |  | $ | 392,475 |
Municipal securities | — |  |  | 196,201 |  |  | — |  |  | 196,201 |
Agency mortgage-backed pass-through securities | — |  |  | 807,986 |  |  | — |  |  | 807,986 |
Agency collateralized mortgage obligations | — |  |  | 697,065 |  |  | — |  |  | 697,065 |
Corporate bonds and other | — |  |  | 104,732 |  |  | — |  |  | 104,732 |
Interest rate swaps and caps | — |  |  | 4,252 |  |  | — |  |  | 4,252 |
Credit risk participation agreements | — |  |  | — |  |  | 6 |  |  | 6 |
Total fair value of financial assets | $ | — |  |  | $ | 2,202,711 |  |  | $ | 6 |  |  | $ | 2,202,717 |
Financial liabilities: |  |  |  |  |  |  |
Interest rate swaps and caps | $ | — |  |  | $ | 4,252 |  |  | $ | — |  |  | $ | 4,252 |
Total fair value of financial liabilities | $ | — |  |  | $ | 4,252 |  |  | $ | — |  |  | $ | 4,252 |

| December 31, 2024
| Level 1 |  | Level 2 |  | Level 3 |  | Total
| (In thousands)
Financial assets: |  |  |  |  |  |  |
Available for sale securities: |  |  |  |  |  |  |
U.S. government and agency securities | $ | — |  |  | $ | 193,603 |  |  | $ | — |  |  | $ | 193,603 |
Municipal securities | — |  |  | 191,453 |  |  | — |  |  | 191,453 |
Agency mortgage-backed pass-through securities | — |  |  | 521,376 |  |  | — |  |  | 521,376 |
Agency collateralized mortgage obligations | — |  |  | 660,363 |  |  | — |  |  | 660,363 |
Corporate bonds and other | — |  |  | 106,221 |  |  | — |  |  | 106,221 |
Interest rate swaps | — |  |  | 6,277 |  |  | — |  |  | 6,277 |
Credit risk participation agreements | — |  |  | — |  |  | 8 |  |  | 8 |
Total fair value of financial assets | $ | — |  |  | $ | 1,679,293 |  |  | $ | 8 |  |  | $ | 1,679,301 |
Financial liabilities: |  |  |  |  |  |  |
Interest rate swaps | $ | — |  |  | $ | 6,277 |  |  | $ | — |  |  | $ | 6,277 |
Total fair value of financial liabilities | $ | — |  |  | $ | 6,277 |  |  | $ | — |  |  | $ | 6,277 |

There were no transfers between levels during 2025 and 2024.
Certain assets, including purchase credit deteriorated and individually evaluated loans with allowances for credit losses, foreclosed assets and branch assets held for sale, are measured at fair value on a nonrecurring basis. These assets are not measured at fair value on an ongoing basis, but are subject to fair value adjustments in certain circumstances such as impairment. There were no
104

Table of contents
STELLAR BANCORP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
liabilities measured at fair value on a nonrecurring basis at December 31, 2025 and 2024. Assets measured on a nonrecurring basis for the periods noted are summarized in the table below.

| December 31, 2025
| Level 1 |  | Level 2 |  | Level 3
| (In thousands)
Loans: |  |  |  |  |
Commercial and industrial | $ | — |  |  | $ | — |  |  | $ | 10,528 |
Commercial real estate (including multi-family residential) | — |  |  | — |  |  | — |
Commercial real estate construction and land development | — |  |  | — |  |  | 10,377 |
1-4 family residential (including home equity) | — |  |  | — |  |  | — |
Consumer and other | — |  |  | — |  |  | 6,203 |
Foreclosed assets | — |  |  | — |  |  | 7,492 |
Total | $ | — |  |  | $ | — |  |  | $ | 34,600 |

| December 31, 2024
| Level 1 |  | Level 2 |  | Level 3
| (In thousands)
Loans: |  |  |  |  |
Commercial and industrial | $ | — |  |  | $ | — |  |  | $ | 9,391 |
Commercial real estate (including multi-family residential) | — |  |  | — |  |  | 3,722 |
Commercial real estate construction and land development | — |  |  | — |  |  | 1,866 |
1-4 family residential (including home equity) | — |  |  | — |  |  | 4,278 |
Consumer and other | — |  |  | — |  |  | — |
Total | $ | — |  |  | $ | — |  |  | $ | 19,257 |

7. DEPOSITS
Time deposits that met or exceeded the Federal Deposit Insurance Corporation (the “FDIC”) insurance limit of $250 thousand at December 31, 2025 and 2024 were $638.0 million and $605.6 million, respectively.
Scheduled maturities of time deposits as of December 31, 2025 were as follows (in thousands):

2026 | $ | 979,292 |
2027 | 25,822 |
2028 | 7,635 |
2029 | 6,081 |
Thereafter | 9,929 |
Total | $ | 1,028,759 |

The Company had brokered deposits of $12.5 million, or 0.1% of total deposits and $481.8 million, or 5.3% of total deposits as of December 31, 2025 and 2024, respectively. Also included within deposits are public funds which are deposits from governments and municipalities that are subject to seasonality and are fully collateralized by either securities pledged or Federal Home Loan Bank of Dallas (“FHLB”) letters of credit. Public funds totaled $1.22 billion, or 13.6% of total deposits, as of December 31, 2025 compared to $1.56 billion, or 17.1% of total deposits, as of December 31, 2024.
Related party deposits from principal officers, directors and their affiliates at December 31, 2025 and 2024 were $138.9 million an d $206.4 million, respectively.
105

Table of contents
STELLAR BANCORP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
8. DERIVATIVE INSTRUMENTS
The Company has outstanding interest rate swap contracts with certain customers and equal and offsetting interest rate swaps with other financial institutions entered into at the same time. These interest rate swap contracts are not designated as hedging instruments for mitigating interest rate risk. The objective of the transactions is to allow customers to effectively convert a variable rate loan to a fixed rate. In connection with each swap transaction, the Company agreed to pay interest to the customer on a notional amount at a variable interest rate and receive interest from the customer on a similar notional amount at a fixed interest rate. At the same time, the Company agreed to pay a third-party financial institution the same fixed interest rate on the same notional amount and receive the same variable interest rate on the same notional amount.
Because the Company acts as an intermediary for its customer, changes in the fair value of the underlying derivative contracts are designed to offset each other and do not significantly impact the Company’s operating results except in certain situations where there is a significant deterioration in the customer’s credit worthiness or that of the counterparties. At December 31, 2025 and 2024, management determined there was no such deterioration.
At December 31, 2025 and 2024, the Company had ten and nine interest rate swap agreements outstanding with borrowers and financial institutions, respectively. Changes in the net fair value are recognized in other noninterest income. Fair value amounts are included in other assets and other liabilities.
The Company has an outstanding interest cap contract with a customer and equal and an offsetting interest rate cap with another financial institution entered into at the same time. This interest rate cap contract is not designated as hedging instruments for mitigating interest rate risk. The objective of the transactions is to allow customers to effectively cap the interest rate on a variable rate loan.
At December 31, 2025 and 2024, the Company had three credit risk participation agreements with another financial institution that are associated with interest rate swaps related to loans for which the Company is the lead agent bank and the other financial institution provides credit protection to the Company should the borrower fail to perform under the terms of the interest rate swap agreements. The fair value of the agreements is determined based on the market value of the underlying interest rate swaps adjusted for credit spreads and recovery rates.
Derivative instruments not designated as hedges as of the periods indicated were as follows:

|  |  |  | December 31, 2025 |  | December 31, 2024
|  |  |  | Notional |  | Fair |  | Notional |  | Fair
|  | Classification |  | Amounts |  | Value |  | Amounts |  | Value
|  |  |  | (In thousands)
Financial institution counterparties: |  |  |  |  |  |  |  |  |  |
Interest rate swaps |  | Other assets |  | $ | 65,290 |  |  | $ | 3,684 |  |  | $ | 70,094 |  |  | $ | 6,277 |
Interest rate swaps |  | Other liabilities |  | 39,357 |  |  | (421) |  |  | — |  |  | — |
Interest rate caps |  | Other assets |  | 2,800 |  |  | 147 |  |  | — |  |  | — |
Customer counterparties: |  | Other liabilities |  |  |  |  |  |  |  |
Interest rate swaps |  | Other assets |  | $ | 39,357 |  |  | $ | 421 |  |  | $ | — |  |  | $ | — |
Interest rate swaps |  | Other liabilities |  | 65,290 |  |  | (3,684) |  |  | 70,094 |  |  | 6,277 |
Interest rate caps |  | Other liabilities |  | 2,800 |  |  | (147) |  |  | — |  |  | — |
Credit risk participations: |  |  |  |  |  |  |  |  |  |
Financial institutions |  | Other assets |  | 19,064 |  |  | 6 |  |  | 19,929 |  |  | 8 |

106

Table of contents
STELLAR BANCORP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
The weighted-average rates paid and received for interest rate swaps outstanding at December 31, 2025 and 2024 were as follows:

|  | December 31, 2025 |  | December 31, 2024
|  | Weighted-Average |  | Weighted-Average
|  | Interest Rate Received |  | Interest Rate Paid |  | Interest Rate Received |  | Interest Rate Paid
Financial institution counterparties |  | 6.01 | % |  | 5.04 | % |  | 6.79 | % |  | 4.36 | %
Customer counterparties |  | 5.04 | % |  | 6.01 | % |  | 4.36 | % |  | 6.79 | %

9. BORROWINGS AND BORROWING CAPACITY
The Company has an available line of credit with the FHLB, which allows the Company to borrow on a collateralized basis. FHLB advances are used to manage liquidity as needed. The advances are secured by blanket liens on certain loans. Maturing advances are replaced by drawing on available cash, making additional borrowings or through increased customer deposits. At December 31, 2025, the Company had total borrowing capacity of $3.17 billion of which $997.1 million was available under the agreement and $2.17 billion was outstanding pursuant to FHLB letters of credit. At December 31, 2025 and 2024, the Company had no FHLB advances outstanding.
At December 31, 2025, the Company had FHLB letters of credit pledged as collateral for public and other deposits of state and local government agencies which will expire in the following periods (in thousands):

2026 | $ | 1,618,496 |
2027 | 366,000 |
2028 | 56,000 |
2029 | 77,000 |
Thereafter | 55,000 |
Total | $ | 2,172,496 |

On December 13, 2024, the Company renewed its loan agreement with another financial institution (the “Loan Agreement”), that provides for a $75.0 million revolving line of credit. At December 31, 2025, there were no outstanding borrowings on this line of credit and no draws were taken on this line of credit during 2025 or 2024. Interest accrues on outstanding borrowings at a per annum rate equal to 3-month SOFR plus 2.75% calculated in accordance with the terms of the revolving promissory note and payable quarterly through the first 24 months. The entire outstanding balance and unpaid interest is payable in full on December 13, 2033, the maturity date. The Company may prepay the principal amount of the line of credit without premium or penalty. The obligations of the Company under the Loan Agreement are secured by a pledge of all of the issued and outstanding shares of capital stock of the Bank.
Covenants made under the Loan Agreement include, among other things, while there are obligations outstanding under Loan Agreement, the Company shall maintain a cash flow to debt service (as defined in the Loan Agreement) of not less than 1.25, the Bank’s Texas Ratio (as defined in the Loan Agreement) not to exceed 20.0%, the Bank shall maintain a Tier 1 Leverage Ratio (as defined under the Loan Agreement) of at least 8.0% and includes restrictions on the ability of the Company and its subsidiaries to incur certain additional debt. As of December 31, 2025, the Company believes it was in compliance with all such debt covenants and had not been made aware of any noncompliance by the lender.
10. SUBORDINATED DEBT
Junior Subordinated Debentures
In connection with the acquisition of F&M Bancshares, Inc. in 2015, the Company assumed Farmers & Merchants Capital Trust II and Farmers & Merchants Capital Trust III. Each of the trusts is a capital or statutory business trust organized for the sole purpose of issuing trust securities and investing the proceeds in the Company’s junior subordinated debentures. The preferred trust securities of each trust represent preferred beneficial interests in the assets of the respective trusts and are subject to mandatory redemption upon payment of the junior subordinated debentures held by the trust. The common securities of each trust are wholly owned by the Company. Each trust’s ability to pay amounts due on the trust preferred securities is solely dependent upon the Company making payment on the related junior subordinated debentures. The debentures, which are the only assets of each trust, are
107

Table of contents
STELLAR BANCORP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
subordinate and junior in right of payment to all of the Company’s present and future senior indebtedness. The Company has fully and unconditionally guaranteed each trust’s obligations under the trust securities issued by each trust to the extent not paid or made by such trust, provided such trust has funds available for such obligations. The trust preferred securities bear a floating rate of interest equal to 3-Month SOFR plus a spread adjustment. The junior subordinated debentures are included in Tier 1 capital under current regulatory guidelines and interpretations. Under the provisions of each issue of the debentures, the Company has the right to defer payment of interest on the debentures at any time, or from time to time, for periods not exceeding five years. If interest payments on either issue of the debentures are deferred, the distributions on the applicable trust preferred securities and common securities will also be deferred.
A summary of pertinent information related to the Company’s junior subordinated debentures outstanding at December 31, 2025 is set forth in the table below:

Description |  | Issuance Date |  | Trust Preferred Securities Outstanding |  | Junior Subordinated Debt Owed to Trusts |  | Maturity Date (1)
|  |  |  | (Dollars in thousands) |  |
Farmers & Merchants Capital Trust II |  | November 13, 2003 |  | $ | 7,500 |  |  | $ | 7,732 |  |  | November 8, 2033
Farmers & Merchants Capital Trust III |  | June 30, 2005 |  | 3,500 |  |  | 3,609 |  |  | July 7, 2035
|  |  |  |  |  | $ | 11,341 |  |  |

(1) All debentures were callable at December 31, 2025.
Subordinated Notes
In December 2017, the Bank issued $40.0 million aggregate principal amount of Fixed-to-Floating Rate Subordinated Notes (the “Bank Notes”) due December 15, 2027 and bore a floating rate of interest equal to 3-Month SOFR plus a 3.03% spread adjustment. In December 2024, the Bank redeemed the Bank Notes at a redemption price equal to 100% of the principal amount of Bank Notes plus accrued and unpaid interest.
In September 2019, Stellar issued $60.0 million aggregate principal amount of Fixed-to-Floating Rate Subordinated Notes (the “Company Notes”) due October 1, 2029. As of December 31, 2025, the Company Notes bore at a floating rate equal to 3-Month SOFR plus 3.13% and a spread adjustment for each quarterly interest period, payable quarterly in arrears on January 1, April 1, July 1 and October 1 of each year. On October 1, 2025, the Company redeemed $30.0 million of the Company Notes. The redemption price for the Company Notes was equal to 100% of the principal amount of the Company Notes redeemed, plus $1.2 million for accrued and unpaid interest up to, but excluding, the redemption date. Any future redemptions will be at a redemption price equal to 100% of the principal amount of Company Notes being redeemed, plus accrued and unpaid interest, and will be subject to, and require, prior regulatory approval. The Company Notes are not subject to redemption at the option of the holders.
11. INCOME TAXES
The amount of the Company’s income tax expense from continuing operations was as follows for the dates indicated below:

| Years Ended December 31,
| 2025 |  | 2024 |  | 2023
| (In thousands)
Current income tax expense | $ | 26,651 |  |  | $ | 26,659 |  |  | $ | 21,137 |
Deferred income tax (benefit) expense | (1,741) |  |  | 3,298 |  |  | 10,250 |
Income tax expense, as reported | $ | 24,910 |  |  | $ | 29,957 |  |  | $ | 31,387 |

A reconciliation between reported income tax expense and the amounts computed by applying the U.S. federal statutory income tax rate of 21% to income before income taxes is presented in the following table. There were no activities or transactions that
108

Table of contents
STELLAR BANCORP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
had foreign income taxes or cross-border tax effects during the reported periods. State income/franchise taxes are primarily related to the State of Texas, while amounts related to other jurisdictions were not significant, in the aggregate, during the reported periods.

| Years Ended December 31,
| 2025 |  | 2024 |  | 2023
| Amount |  | Percent |  | Amount |  | Percent |  | Amount |  | Percent
| (Dollars in thousands)
U.S. federal income tax expense computed at statutory rate | $ | 26,835 |  |  | 21.0% |  | $ | 30,444 |  |  | 21.0% |  | $ | 33,995 |  |  | 21.0%
State income/franchise taxes, net of U.S. federal income tax effects | — |  |  | 0.0% |  | — |  |  | 0.0% |  | — |  |  | 0.0%
Effect of changes in tax laws or rates enacted during the year | — |  |  | 0.0% |  | — |  |  | 0.0% |  | — |  |  | 0.0%
Transferable energy tax credits | (938) |  |  | (0.7%) |  | — |  |  | 0.0% |  | — |  |  | 0.0%
Non-taxable or non-deductible items: |  |  |  |  |  |  |  |  |  |  |
Effect of tax-exempt income | (1,514) |  |  | (1.2%) |  | (1,510) |  |  | (1.0)% |  | (1,943) |  |  | (1.2)%
Non-deductible merger expenses | — |  |  | 0.0% |  | — |  |  | 0.0% |  | 10 |  |  | 0.0%
Bank-owned life insurance | (606) |  |  | (0.5%) |  | (507) |  |  | (0.3%) |  | (457) |  |  | (0.3%)
Executive compensation limitation | 807 |  |  | 0.6% |  | 231 |  |  | 0.1% |  | 152 |  |  | 0.1%
FDIC assessment limitation | 26 |  |  | 0.0% |  | 23 |  |  | 0.0% |  | 26 |  |  | 0.0%
Excise tax on share repurchases | 134 |  |  | 0.1% |  | — |  |  | 0.0% |  | — |  |  | 0.0%
Other, net | 59 |  |  | 0.1% |  | 1,140 |  |  | 0.8% | — |  | (335) |  |  | (0.2%)
Net tax benefit from stock-based compensation | 107 |  |  | 0.1% |  | 136 |  |  | 0.1% |  | (61) |  |  | 0.0%
Income tax expense and effective tax rate, as reported | $ | 24,910 |  |  | 19.5% |  | $ | 29,957 |  |  | 20.7% |  | $ | 31,387 |  |  | 19.4%

Deferred taxes as of December 31, 2025 and 2024 are based on the 21% maximum federal statutory tax rate. Deferred tax assets and liabilities were as follows:

| December 31,
| 2025 |  | 2024
| (In thousands)
Deferred tax assets: |  |  |
Allowance for credit losses on loans and unfunded commitments | $ | 21,969 |  |  | $ | 20,457 |
Deferred loan fees | 62 |  |  | 62 |
Deferred compensation | 2,367 |  |  | 2,621 |
Loans and securities purchase accounting adjustments | 11,415 |  |  | 15,485 |
Net unrealized loss on available for sale securities | 19,393 |  |  | 33,322 |
Other deferred assets | 1,647 |  |  | 1,760 |
Total deferred tax assets | 56,853 |  |  | 73,707 |
Deferred tax liabilities: |  |  |
Core deposit intangible and other purchase accounting adjustments | (15,409) |  |  | (19,922) |
Premises and equipment basis difference | (2,336) |  |  | (2,633) |
Total deferred tax liabilities | (17,745) |  |  | (22,555) |
Net deferred tax assets | $ | 39,108 |  |  | $ | 51,152 |

Interest and penalties related to tax positions are recognized in the period in which they begin accruing or when the entity claims the position that does not meet the minimum statutory thresholds. The Company does not have any material uncertain tax positions and does not have any interest or penalties recorded in the income statement for the years ended December 31, 2025, 2024 and 2023. The Company is no longer subject to examination by the U.S. Federal Tax Jurisdiction for the years prior to 2022.
109

Table of contents
STELLAR BANCORP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
12. STOCK-BASED COMPENSATION
During 2025, the Company increased the maximum shares authorized to be issued under the 2022 Omnibus Incentive Plan (the “2022 Plan”) to 3,100,000 shares of common stock from 2,000,000 shares. All restricted stock and performance share units outstanding at December 31, 2025 were issued under the 2022 Plan. At December 31, 2025, there were 1,686,152 shares reserved and available for issuance under the 2022 Plan.
The Company accounts for stock-based employee compensation plans using the fair value-based method of accounting. The Company recognized total stock-based compensation expense of $9.2 million, $10.8 million and $9.9 million for the years ended December 31, 2025, 2024 and 2023, respectively.
Stock Options
Stock options outstanding at December 31, 2025 were issued under equity compensation plans that are no longer active. No additional shares may be issued under these compensation plans. There were no stock options granted during 2025 and 2024. The fair value of stock options granted is estimated at the date of grant using the Black-Scholes model. Options are exercisable up to 10 years from the date of the grant and, dependent on the terms of the applicable award agreement, generally vest 3 to 4 years after the date of grant.
Stock option activity for the years ended December 31, 2025 and 2024 was as follows:

| Number of Options |  | Weighted Average Exercise Price |  | Weighted Average Remaining Contractual Term |  | Aggregate Intrinsic Value
| (In thousands) |  |  |  | (In years) |  | (In thousands)
Options outstanding, January 1, 2024 | 258 |  |  | $ | 18.56 |  |  | 2.09 |  | $ | 2,398 |
Options granted | — |  |  | — |  |  |  |  |
Options exercised | (133) |  |  | 16.34 |  |  |  |  |
Options forfeited | (6) |  |  | 19.89 |  |  |  |  |
Options outstanding, December 31, 2024 | 119 |  |  | $ | 20.98 |  |  | 2.05 |  | $ | 876 |
Options granted | — |  |  | — |  |  |  |  |
Options exercised | (44) |  |  | 19.15 |  |  |  |  |
Options forfeited | (3) |  |  | 21.33 |  |  |  |  |
Options outstanding, December 31, 2025 | 72 |  |  | $ | 22.10 |  |  | 1.55 |  | $ | 634 |
Options vested and exercisable, December 31, 2025 | 72 |  |  | $ | 22.10 |  |  | 1.55 |  | $ | 634 |

Information related to the stock options exercises for the years indicated below is as follows:

| 2025 |  | 2024 |  | 2023
| (In thousands)
Intrinsic value of options exercised | $ | 396 |  |  | $ | 1,118 |  |  | $ | 776 |
Cash received from option exercises | 851 |  |  | 2,173 |  |  | 986 |

Restricted Stock Awards
The fair value of the Company’s restricted stock awards is estimated based on the market value of the Company’s common stock at the date of grant, which is the closing price of the Company’s common stock on the day before the grant date. The shares of restricted stock granted generally vest over a period of two or three years from the date of grant and the Company accounts for shares of restricted stock by recording the fair value of the grant on the award date as compensation expense over the vesting period. Restricted stock awards are non-transferable and subject to forfeiture until the restricted stock awards vest and any dividends with respect to the restricted stock awards are subject to the same restrictions, including the risk of forfeiture.
110

Table of contents
STELLAR BANCORP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
Nonvested shares of restricted stock activity for the years ended December 31, 2025 and 2024 was as follows:

| Number of Shares |  | Weighted Average Grant Date Fair Value
| (In thousands) |  |
Nonvested share awards outstanding, January 1, 2024 | 458 |  |  | $ | 29.38 |
Share awards granted | 314 |  |  | 23.20 |
Share awards vested | (279) |  |  | 30.29 |
Unvested share awards forfeited or cancelled | (64) |  |  | 25.71 |
Nonvested share awards outstanding, December 31, 2024 | 429 |  |  | $ | 24.81 |
Share awards granted | 271 |  |  | 28.76 |
Share awards vested | (205) |  |  | 25.56 |
Unvested share awards forfeited or cancelled | (35) |  |  | 27.21 |
Nonvested share awards outstanding, December 31, 2025 | 460 |  |  | $ | 26.63 |

At December 31, 2025, there was $7.7 million of unrecognized compensation expense related to the restricted stock awards, which is expected to be recognized over a weighted-average period of 1.77 years. The total fair value of restricted stock awards that fully vested during the years ended December 31, 2025, 2024 and 2023 was approximately $5.7 million, $6.8 million and $5.0 million, respectively.
Performance Share Units and Performance Share Awards
The Company’s PSUs and PSAs are earned subject to certain performance goals being met after a specified performance period and are settled in shares of Company common stock. The Company awarded 88,941 and 77,624 PSUs during the years ended December 31, 2025 and 2024, respectively, under the 2022 Plan. PSUs issued in 2025 and 2024 are not considered outstanding at the date of issuance as the grantee does not become the record owner of the restricted stock and does not have voting, dividend and other shareholder rights.
The grant date fair value of the PSUs and PSAs is based on the probable outcome of the applicable performance conditions and is calculated at target based on a combination of the closing market price of our common stock on the grant date and a Monte Carlo simulated fair value in accordance with ASC 718. At December 31, 2025, there was $2.5 million of unrecognized compensation expense related to PSUs, which is expected to be recognized over a weighted-average period of 2.11 years.
13. OFF-BALANCE SHEET ARRANGEMENTS, COMMITMENTS AND CONTINGENCIES
In the normal course of business, the Company enters into various transactions, which, in accordance with accounting principles generally accepted in the United States are not included in the Company’s consolidated balance sheets. The Company enters into these transactions to meet the financing needs of its customers. These transactions include commitments to extend credit and standby and commercial letters of credit, which involve to varying degrees, elements of credit risk and interest rate risk in excess of the amounts recognized in the consolidated balance sheets. The Company uses the same credit policies in making commitments and conditional obligations as it does for on balance sheet instruments.
The contractual amounts of financial instruments with off-balance sheet risk were as follows:

| December 31,
| 2025 |  | 2024
| (In thousands)
Commitments to extend credit | $ | 2,102,646 |  |  | $ | 1,701,923 |
Standby letters of credit | 65,616 |  |  | 43,639 |
Total | $ | 2,168,262 |  |  | $ | 1,745,562 |

111

Table of contents
STELLAR BANCORP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
At December 31, 2025 and 2024, the Company had FHLB letters of credit in the amount of $2.17 billion and $2.10 billion, respectively, pledged as collateral for public and other deposits of state and local government agencies. For more information on FHLB borrowings, see Note 9 – Borrowings and Borrowing Capacity.
C ommitments to Extend Credit
Commitments to extend credit are agreements to lend to a customer as long as there is no violation of any condition established in the contract. Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee. Since many of the commitments are expected to expire without being fully drawn upon, the total commitment amounts disclosed do not necessarily represent future cash funding requirements. The Company evaluates each customer’s creditworthiness on a case-by-case basis. The Company minimizes its exposure to loss under these commitments by subjecting them to credit approval and monitoring procedures. Management assesses the credit risk associated with certain commitments to extend credit in determining the level of the allowance for credit losses. The amount and type of collateral, if deemed necessary by the Company upon extension of credit, is based on management’s credit evaluation of the customer.
Standby Letters of Credit
Standby letters of credit are written conditional commitments issued by the Company to guarantee the performance of a customer to a third-party. In the event of nonperformance by the customer, the Company has the rights to the underlying collateral. The credit risk to the Company in issuing letters of credit is substantially similar to that involved in extending loan facilities to its customers. The Company’s policy for obtaining collateral, and the nature of such collateral, is substantially similar to that involved in making commitments to extend credit.
Allowance for Credit Losses on Unfunded Commitments
In addition to the allowance for credit losses on loans, the Company has established an allowance for credit losses on unfunded commitments to extend credit, which is classified in other liabilities and adjusted through a provision for (or reversal of) credit loss charged to expense. The allowance represents estimates of expected credit losses over the contractual period in which there is exposure to credit risk via a contractual obligation to extend credit, unless that obligation is unconditionally cancellable by the Company. The estimate includes consideration of the likelihood that funding will occur and an estimate of expected credit losses on the commitments expected to be funded. The estimate of commitments expected to fund is based on historical analysis looking at utilization rates. The expected credit loss rates applied to the commitments expected to fund are based on the general valuation allowance utilized for outstanding balances with the same underlying assumptions and drivers. The allowance for credit losses on unfunded commitments as of December 31, 2025 and 2024 was $16.2 million and $12.4 million, respectively. This reserve is maintained at a level management believes to be sufficient to absorb any losses arising from unfunded loan commitments. The Company recorded a provision on unfunded commitments of $3.8 million for the year ended December 31, 2025 and $1.1 million for the year ended December 31, 2024 and a reversal of provision on unfunded commitments of $682 thousand for the year ended December 31, 2023. The increase in the provision on unfunded commitments for the year ended December 31, 2025 compared to the year ended December 31, 2024 was primarily due to the increase in commitments on portfolios with higher loss rates.
Litigation
The Company is subject to potential and asserted claims, inquiries, investigations and lawsuits which arise in the ordinary course of business. The process of resolving matters through litigation or other means is inherently uncertain, and it is possible that an unfavorable resolution of such matters will adversely affect the financial position or results of operations of the Company. The Company's regular practice is to expense legal fees as services are rendered in connection with legal matters, and to accrue for liabilities when payment is estimable and probable.
14. REGULATORY CAPITAL MATTERS
The Company and the Bank are subject to various regulatory capital requirements administered by the federal banking agencies. Capital adequacy guidelines, and for banks, prompt corrective action regulations involve quantitative measures of assets, liabilities and certain off-balance sheet items calculated under regulatory accounting practices. Capital amounts and classifications are also subject to qualitative judgments by regulators about components, risk weightings and other factors. The Company and the Bank’s Common Equity Tier 1 capital includes common stock and related paid-in capital and retained earnings. In connection with the adoption of the Basel III Capital Rules, we elected to opt-out of the requirement to include accumulated other comprehensive income in Common Equity Tier 1.
112

Table of contents
STELLAR BANCORP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
Failure to meet minimum capital requirements can initiate actions by regulators that, if undertaken, could have a direct material effect on the Company’s consolidated financial statements. Management believes as of December 31, 2025 and 2024, the Company and the Bank met all capital adequacy requirements to which they were then subject.
Prompt corrective action regulations provide five classifications: well capitalized, adequately capitalized, undercapitalized, significantly undercapitalized and critically undercapitalized, although these terms are not used to represent overall financial condition. If less than well capitalized, regulatory approval is required to accept brokered deposits. If undercapitalized, capital distributions are limited as is asset growth and expansion, and capital restoration plans are required. At year-end 2025 and 2024, the most recent regulatory notifications categorized the Bank as well capitalized under the regulatory framework for prompt corrective action. There are no conditions or events since that notification that management believes have changed the institution’s category.
The Bank’s capital ratios as of December 31, 2025 exceed the minimum levels necessary to be considered “well-capitalized”
under the prompt corrective action regulatory framework.
The following is a summary of the Company’s and the Bank’s actual and required capital ratios as of December 31, 2025 and 2024:

| Actual |  | Minimum Required for Capital Adequacy Purposes |  | Minimum Required Plus Capital Conservation Buffer |  | To Be Categorized as Well Capitalized Under Prompt Corrective Action Provisions
| Amount |  | Ratio |  | Amount |  | Ratio |  | Amount |  | Ratio |  | Amount |  | Ratio
| (Dollars in thousands)
STELLAR BANCORP, INC. (Consolidated) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
December 31, 2025 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total Capital (to risk-weighted assets) | $ | 1,301,075 |  |  | 15.73 | % |  | $ | 661,851 |  |  | 8.00 | % |  | $ | 868,679 |  |  | 10.50 | % |  | N/A |  | N/A
Common Equity Tier 1 Capital (to risk-weighted assets) | 1,173,283 |  |  | 14.18 | % |  | 372,291 |  |  | 4.50 | % |  | 579,119 |  |  | 7.00 | % |  | N/A |  | N/A
Tier 1 Capital (to risk-weighted assets) | 1,183,509 |  |  | 14.31 | % |  | 496,388 |  |  | 6.00 | % |  | 703,216 |  |  | 8.50 | % |  | N/A |  | N/A
Tier 1 Leverage (to average tangible assets) | 1,183,509 |  |  | 11.52 | % |  | 410,785 |  |  | 4.00 | % |  | 410,785 |  |  | 4.00 | % |  | N/A |  | N/A
December 31, 2024 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total Capital (to risk-weighted assets) | $ | 1,294,263 |  |  | 16.00 | % |  | $ | 647,103 |  |  | 8.00 | % |  | $ | 849,323 |  |  | 10.50 | % |  | N/A |  | N/A
Common Equity Tier 1 Capital (to risk-weighted assets) | 1,143,360 |  |  | 14.14 | % |  | 363,996 |  |  | 4.50 | % |  | 566,215 |  |  | 7.00 | % |  | N/A |  | N/A
Tier 1 Capital (to risk-weighted assets) | 1,153,258 |  |  | 14.26 | % |  | 485,328 |  |  | 6.00 | % |  | 687,547 |  |  | 8.50 | % |  | N/A |  | N/A
Tier 1 Leverage (to average tangible assets) | 1,153,258 |  |  | 11.31 | % |  | 407,750 |  |  | 4.00 | % |  | 407,750 |  |  | 4.00 | % |  | N/A |  | N/A
STELLAR BANK |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
December 31, 2025 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total Capital (to risk-weighted assets) | $ | 1,241,007 |  |  | 15.03 | % |  | $ | 660,452 |  |  | 8.00 | % |  | $ | 866,844 |  |  | 10.50 | % |  | $ | 825,566 |  |  | 10.00 | %
Common Equity Tier 1 Capital (to risk-weighted assets) | 1,141,442 |  |  | 13.83 | % |  | 371,504 |  |  | 4.50 | % |  | 577,896 |  |  | 7.00 | % |  | 536,618 |  |  | 6.50 | %
Tier 1 Capital (to risk-weighted assets) | 1,141,442 |  |  | 13.83 | % |  | 495,339 |  |  | 6.00 | % |  | 701,731 |  |  | 8.50 | % |  | 660,452 |  |  | 8.00 | %
Tier 1 Leverage (to average tangible assets) | 1,141,442 |  |  | 11.14 | % |  | 410,038 |  |  | 4.00 | % |  | 410,038 |  |  | 4.00 | % |  | 512,548 |  |  | 5.00 | %
December 31, 2024 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total Capital (to risk-weighted assets) | $ | 1,233,994 |  |  | 15.28 | % |  | $ | 646,030 |  |  | 8.00 | % |  | $ | 847,915 |  |  | 10.50 | % |  | $ | 807,538 |  |  | 10.00 | %
Common Equity Tier 1 Capital (to risk-weighted assets) | 1,140,989 |  |  | 14.13 | % |  | 363,392 |  |  | 4.50 | % |  | 565,277 |  |  | 7.00 | % |  | 524,900 |  |  | 6.50 | %
Tier 1 Capital (to risk-weighted assets) | 1,140,989 |  |  | 14.13 | % |  | 484,523 |  |  | 6.00 | % |  | 686,407 |  |  | 8.50 | % |  | 646,030 |  |  | 8.00 | %
Tier 1 Leverage (to average tangible assets) | 1,140,989 |  |  | 11.21 | % |  | 407,219 |  |  | 4.00 | % |  | 407,219 |  |  | 4.00 | % |  | 509,024 |  |  | 5.00 | %

113

Table of contents
STELLAR BANCORP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
Dividend Restrictions
The Company’s principal source of funds for dividend payments is dividends received from the Bank. Banking regulations limit the amount of dividends that may be paid without prior approval of regulatory agencies. In addition, the Company’s credit agreement with another financial institution also limits its ability to pay dividends. Under applicable banking regulations, the amount of dividends that may be paid by the Bank in any calendar year is limited to the current year’s net profits combined with the retained net profits of the preceding two years, subject to the capital requirements described above.
15. EARNINGS PER COMMON SHARE
Basic earnings per common share is calculated as net income divided by the weighted average number of common shares outstanding during the period. All restricted shares and performance share awards are considered outstanding at the date of grant. Diluted earnings per common share is computed using the weighted-average number of common shares determined for the basic earnings per common share computation plus the potential dilutive effect of outstanding stock options and performance share units using the treasury stock method. A reconciliation of the weighted-average shares used in calculating basic earnings per common share and the weighted-average common shares used in calculating diluted earnings per common share for the reported periods is provided below.

| Years Ended December 31,
| 2025 |  | 2024 |  | 2023
| Amount |  | Per Share Amount |  | Amount |  | Per Share Amount |  | Amount |  | Per Share Amount
| (Amounts in thousands, except per share data)
Net income attributable to shareholders | $ | 102,872 |  |  |  |  | $ | 115,003 |  |  |  |  | $ | 130,497 |  |  |
Basic: |  |  |  |  |  |  |  |  |  |  |
Weighted average shares outstanding | 51,756 |  |  | $ | 1.99 |  |  | 53,469 |  |  | $ | 2.15 |  |  | 53,229 |  |  | $ | 2.45 |
Diluted: |  |  |  |  |  |  |  |  |  |  |
Add incremental shares for: |  |  |  |  |  |  |  |  |  |  |
Dilutive effect of stock options and performance share units | 52 |  |  |  |  | 41 |  |  |  |  | 84 |  |  |
Total | 51,808 |  |  | $ | 1.99 |  |  | 53,510 |  |  | $ | 2.15 |  |  | 53,313 |  |  | $ | 2.45 |

There were 88,941, 94,135 and 27,155 shares not considered in computing diluted earnings per share as of December 31, 2025, 2024 and 2023, respectively, as they were antidilutive.
16. SEGMENT INFORMATION
The Company’s reportable segment is determined by the Chief Financial Officer, who is the designated chief operating decision maker, based upon information provided about the Company’s services offered, primarily banking operations. The segment is also distinguished by the level of information provided to the chief operating decision maker, who uses such information to evaluate the financial performance of the Company’s business by evaluating consolidated net income, significant expenses and budget to actual results in assessing the Company’s segment and in the determination of allocating resources. The chief operating decision maker uses consolidated net income to benchmark the Company against its competitors. The benchmarking analysis coupled with monitoring of budget to actual results are used in assessment performance and in establishing compensation. The presentation of financial performance to the chief operating decision maker is consistent with amounts and financial statement lines shown on the Company’s consolidated balance sheets and consolidated statements of income. Loans, investments and deposits in other financial institutions provide income in the banking operation. Interest expense, provisions for credit losses and salaries and benefits are the significant expenses in the banking operation. All of the Company’s financial results are similar and considered by management to be aggregated into one reportable operating segment.
114

Table of contents
STELLAR BANCORP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
17. PARENT COMPANY ONLY FINANCIAL STATEMENTS
STELLAR BANCORP, INC.
(PARENT COMPANY ONLY)
CONDENSED BALANCE SHEETS

| December 31,
| 2025 |  | 2024
| (Dollars in thousands)
ASSETS: |  |  |
Cash and due from banks | $ | 57,807 |  |  | $ | 61,334 |
Investment in subsidiary | 1,637,154 |  |  | 1,605,830 |
Other assets | 15,934 |  |  | 12,983 |
TOTAL ASSETS | $ | 1,710,895 |  |  | $ | 1,680,147 |
LIABILITIES AND SHAREHOLDERS’ EQUITY |  |  |
LIABILITIES: |  |  |
Subordinated debentures | $ | 40,226 |  |  | $ | 70,105 |
Accrued interest payable and other liabilities | 2,015 |  |  | 2,182 |
Total liabilities | 42,241 |  |  | 72,287 |
SHAREHOLDERS’ EQUITY: |  |  |
Common stock | 509 |  |  | 534 |
Capital surplus | 1,174,894 |  |  | 1,240,050 |
Retained earnings | 566,216 |  |  | 492,640 |
Accumulated other comprehensive loss | (72,965) |  |  | (125,364) |
Total shareholders’ equity | 1,668,654 |  |  | 1,607,860 |
TOTAL LIABILITIES AND SHAREHOLDERS’ EQUITY | $ | 1,710,895 |  |  | $ | 1,680,147 |

115

Table of contents
STELLAR BANCORP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
STELLAR BANCORP, INC.
(PARENT COMPANY ONLY)
CONDENSED STATEMENTS OF INCOME

| Years Ended December 31,
| 2025 |  | 2024 |  | 2023
| (Dollars in thousands)
INCOME: |  |  |  |  |
Dividends from subsidiary | $ | 135,000 |  |  | $ | 72,500 |  |  | $ | 25,000 |
Other income | 38 |  |  | 34 |  |  | 34 |
Total income | 135,038 |  |  | 72,534 |  |  | 25,034 |
EXPENSE: |  |  |  |  |
Interest expense on borrowed funds | 4,936 |  |  | 4,438 |  |  | 3,175 |
Other expenses | 9,093 |  |  | 12,933 |  |  | 5,288 |
Total expense | 14,029 |  |  | 17,371 |  |  | 8,463 |
Income before income tax benefit and equity in undistributed income of subsidiaries | 121,009 |  |  | 55,163 |  |  | 16,571 |
Income tax benefit | 2,938 |  |  | 3,641 |  |  | 1,770 |
Income before equity in undistributed income of subsidiaries | 123,947 |  |  | 58,804 |  |  | 18,341 |
Equity in undistributed income of subsidiaries | (21,075) |  |  | 56,199 |  |  | 112,156 |
Net income | $ | 102,872 |  |  | $ | 115,003 |  |  | $ | 130,497 |

116

Table of contents
STELLAR BANCORP, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
STELLAR BANCORP, INC.
(PARENT COMPANY ONLY)
CONDENSED STATEMENTS OF CASH FLOWS

| Years Ended December 31,
| 2025 |  | 2024 |  | 2023
| (Dollars in thousands)
CASH FLOWS FROM OPERATING ACTIVITIES: |  |  |  |  |
Net income | $ | 102,872 |  |  | $ | 115,003 |  |  | $ | 130,497 |
Adjustments to reconcile net income to net cash used in operating activities: |  |  |  |  |
Equity in undistributed income of subsidiaries | 21,075 |  |  | (56,199) |  |  | (112,156) |
Net amortization of discount on subordinated debentures | 121 |  |  | 340 |  |  | 398 |
Stock-based compensation expense | 9,151 |  |  | 10,764 |  |  | 9,945 |
Increase in other assets | (2,951) |  |  | (3,693) |  |  | (1,721) |
(Decrease) increase in accrued interest payable and other liabilities | (167) |  |  | 373 |  |  | (202) |
Net cash provided by operating activities | 130,101 |  |  | 66,588 |  |  | 26,761 |
CASH FLOWS FROM INVESTING ACTIVITIES: |  |  |  |  |
Net cash provided by investing activities | — |  |  | — |  |  | — |
CASH FLOWS FROM FINANCING ACTIVITIES: |  |  |  |  |
Repurchase of common stock | (73,352) |  |  | (2,842) |  |  | — |
Repayment of subordinated debt | (30,000) |  |  | — |  |  | — |
Dividends paid to common shareholders | (29,296) |  |  | (28,308) |  |  | (27,698) |
Payments made from the issuance of restricted stock and stock option exercises | (980) |  |  | (498) |  |  | (76) |
Net cash used in financing activities | (133,628) |  |  | (31,648) |  |  | (27,774) |
NET CHANGE IN CASH AND CASH EQUIVALENTS | (3,527) |  |  | 34,940 |  |  | (1,013) |
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD | 61,334 |  |  | 26,394 |  |  | 27,407 |
CASH AND CASH EQUIVALENTS, END OF PERIOD | $ | 57,807 |  |  | $ | 61,334 |  |  | $ | 26,394 |

18. SUBSEQUENT EVENT
Pending Merger
On January 27, 2026, the Company entered into an Agreement and Plan of Merger (the “Merger Agreement”) with Prosperity Bancshares, Inc., a Texas corporation (“Prosperity”). The Merger Agreement provides that, upon the terms and subject to the conditions set forth therein, the Company will merge with and into Prosperity (the “Merger”), with Prosperity continuing as the surviving corporation in the Merger. Immediately following the Merger, Stellar Bank will merge with and into Prosperity’s wholly owned banking subsidiary, Prosperity Bank (the “Bank Merger”). Prosperity Bank will continue as the surviving bank in the Bank Merger. Upon the terms and subject to the conditions set forth in the Merger Agreement, at the effective time of the Merger (the “Effective Time”), each share of common stock, par value $0.01 per share, of the Company (“Stellar Common Stock”) outstanding immediately prior to the Effective Time, other than certain shares held by Prosperity or the Company and shares held by a holder of Stellar Common Stock who has properly exercised applicable dissenters’ rights in respect of such share, will be converted into the right to receive (1) 0.3803 shares of common stock, par value $1.00 per share, of Prosperity and (2) an amount in cash equal to $11.36. The completion of the Merger is subject to customary conditions, including approval of the Company’s shareholders and regulatory approvals.
Dividend Declaration
On February 25, 2026, the Company declared a cash dividend of $0.15 per share of common stock to be paid on March 31, 2026 to all shareholders of record as of Marc h 16, 20 26.
117