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Derivative Financial Instruments | 12 Months Ended
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Dec. 31, 2025
Derivative Instruments and Hedging Activities Disclosure [Abstract] |
Derivative Financial Instruments | Note 19 – Derivative Financial Instruments Derivatives Designated as Hedging Instruments Trustmark engages in a cash flow hedging program to add stability to interest income and to manage its exposure to interest rate movements. Interest rate swaps designated as cash flow hedges involve the receipt of fixed-rate amounts from a counterparty in exchange for Trustmark making variable-rate payments over the life of the agreements without exchange of the underlying notional amount. Interest rate floor spreads designated as cash flow hedges involve the receipt of variable-rate amounts if interest rates fall below the purchased floor strike rate on the contract and payments of variable-rate amounts if interest rates fall below the sold floor strike rate on the contract. Trustmark uses such derivatives to hedge the variable cash flows associated with existing and anticipated variable-rate loan assets. At December 31, 2025, the aggregate notional value of Trustmark's interest rate swaps and floor spreads designated as cash flow hedges totaled $1.630 billion compared to $1.500 billion at December 31, 2024. Trustmark records any gains or losses on these cash flow hedges in accumulated other comprehensive income (loss). Gains and losses on derivatives representing hedge components excluded from the assessment of effectiveness are recognized over the life of the hedge on a systematic and rational basis, as documented at hedge inception in accordance with Trustmark’s accounting policy election. The earnings recognition of excluded components included in interest and fees on LHFS and LHFI totaled $526 thousand, $474 thousand and $57 thousand of amortization expense for the years ended December 31, 2025, 2024 and 2023, respectively. As interest payments are received on Trustmark's variable-rate assets, amounts reported in accumulated other comprehensive income (loss) are reclassified into interest and fees on LHFS and LHFI in the accompanying consolidated statements of income during the same period. During the next twelve months, Trustmark estimates that $704 thousand will be reclassified as a reduction to interest and fees on LHFS and LHFI. This amount could differ due to changes in interest rates, hedge de-designations or the addition of other hedges. Derivatives not Designated as Hedging Instruments Trustmark utilizes a portfolio of exchange-traded derivative instruments, such as Treasury note futures contracts and option contracts, to achieve a fair value return that economically hedges changes in the fair value of the MSR attributable to interest rates. These transactions are considered freestanding derivatives that do not otherwise qualify for hedge accounting. The total notional amount of these derivative instruments was $345.5 million at December 31, 2025 compared to $311.5 million at December 31, 2024. Changes in the fair value of these exchange-traded derivative instruments are recorded as noninterest income (loss) in mortgage banking, net and are offset by changes in the fair value of the MSR. The impact of this strategy resulted in a net negative ineffectiveness of $2.6 million, $9.2 million and $6.3 million for the years ended December 31, 2025, 2024 and 2023, respectively. As part of Trustmark’s risk management strategy in the mortgage banking area, derivative instruments such as forward sales contracts are utilized. Trustmark’s obligations under forward sales contracts consist of commitments to deliver mortgage loans, originated and/or purchased, in the secondary market at a future date. Changes in the fair value of these derivative instruments are recorded as noninterest income (loss) in mortgage banking, net and are offset by changes in the fair value of LHFS. Trustmark’s off-balance sheet obligations under these derivative instruments totaled $152.0 million at December 31, 2025, with a negative valuation adjustment of $287 thousand, compared to $110.0 million at December 31, 2024, with a positive valuation adjustment of $679 thousand. Trustmark also utilizes derivative instruments such as interest rate lock commitments in its mortgage banking area. Interest rate lock commitments are residential mortgage loan commitments with customers, which guarantee a specified interest rate for a specified time period. Changes in the fair value of these derivative instruments are recorded as noninterest income (loss) in mortgage banking, net and are offset by the changes in the fair value of forward sales contracts. Trustmark’s off-balance sheet obligations under these derivative instruments totaled $74.5 million at December 31, 2025, with a positive valuation adjustment of $998 thousand, compared to $52.1 million at December 31, 2024, with a positive valuation adjustment of $229 thousand. Trustmark offers certain derivatives products directly to qualified commercial lending clients seeking to manage their interest rate risk. Trustmark economically hedges interest rate swap transactions executed with commercial lending clients by entering into offsetting interest rate swap transactions with institutional derivatives market participants. Derivatives transactions executed as part of this program are not designated as qualifying hedging relationships and are, therefore, carried at fair value with the change in fair value recorded as noninterest income (loss) in bank card and other fees. Because these derivatives have mirror-image contractual terms, in addition to collateral provisions which mitigate the impact of non-performance risk, the changes in fair value are expected to substantially offset. The offsetting interest rate swap transactions are either cleared through the Chicago Mercantile Exchange for clearable transactions or booked directly with institutional derivatives market participants for non-clearable transactions. The Chicago Mercantile Exchange rules legally characterize variation margin collateral payments made or received for centrally cleared interest rate swaps as settlements rather than collateral. As a result, centrally cleared interest rate swaps included in other assets and other liabilities are presented on a net basis in the accompanying consolidated balance sheets. At December 31, 2025, Trustmark had interest rate swaps with an aggregate notional amount of $1.991 billion related to this program, compared to $1.819 billion at December 31, 2024. Credit-risk-related Contingent Features Trustmark has agreements with its financial institution counterparties that contain provisions where if Trustmark defaults on any of its indebtedness, including default where repayment of the indebtedness has not been accelerated by the lender, then Trustmark could also be declared in default on its derivatives obligations. At December 31, 2025, the termination value of interest rate swaps in a liability position, which includes accrued interest but excludes any adjustment for nonperformance risk, related to these agreements was $117 thousand compared to $568 thousand at December 31, 2024. At December 31, 2025 and 2024, Trustmark had posted collateral of $2.2 million and $1.5 million, respectively, against its obligations because of negotiated thresholds and minimum transfer amounts under these agreements. If Trustmark had breached any of these triggering provisions at December 31, 2025, it could have been required to settle its obligations under the agreements at the termination value. Credit risk participation agreements arise when Trustmark contracts with other financial institutions, as a guarantor or beneficiary, to share credit risk associated with certain interest rate swaps. These agreements provide for reimbursement of losses resulting from a third-party default on the underlying swap. At December 31, 2025, Trustmark had entered into ten risk participation agreements as a beneficiary with an aggregate notional amount of $113.7 million compared to eleven risk participation agreements as a beneficiary with an aggregate notional amount of $83.9 million at December 31, 2024. At December 31, 2025, Trustmark had entered into twenty-seven risk participation agreements as a guarantor with aggregate notional amounts of $267.9 million compared to twenty-eight risk participation agreements as a guarantor with aggregate notional amounts of $229.1 million at December 31, 2024. The aggregate fair values of these risk participation agreements were immaterial at December 31, 2025 and 2024. Tabular Disclosures The following tables disclose the fair value of derivative instruments in Trustmark’s consolidated balance sheets at December 31, 2025 and 2024 as well as the effect of these derivative instruments on Trustmark’s results of operations for the periods presented ($ in thousands):
|  | December 31, |
|  | 2025 |  |  | 2024 |
Derivatives in hedging relationships |  |  |  |  |  |
Interest rate contracts: |  |  |  |  |  |
Interest rate swaps included in other assets (1) |  | $ | 3,890 |  |  | $ | 74 |
Interest rate floors included in other assets |  |  | 1,673 |  |  |  | 1,582 |
Interest rate swaps included in other liabilities (1) |  |  | 611 |  |  |  | 5,958 |
Derivatives not designated as hedging instruments |  |  |  |  |  |
Interest rate contracts: |  |  |  |  |  |
Exchange traded purchased options included in other assets |  | $ | 11 |  |  | $ | 18 |
OTC written options (rate locks) included in other assets |  |  | 998 |  |  |  | 229 |
Interest rate swaps included in other assets (1) |  |  | 9,654 |  |  |  | 13,478 |
Credit risk participation agreements included in other assets |  |  | 9 |  |  |  | 16 |
Futures contracts included in other liabilities |  |  | 1,661 |  |  |  | 1,972 |
Forward contracts included in other liabilities |  |  | 287 |  |  |  | (679 | )
Exchange traded written options included in other liabilities |  |  | 47 |  |  |  | 211 |
Interest rate swaps included in other liabilities (1) |  |  | 20,098 |  |  |  | 33,817 |
Credit risk participation agreements included in other liabilities |  |  | 128 |  |  |  | 76 |
(1) In accordance with GAAP, the variation margin collateral payments made or received for interest rate swaps that are centrally cleared are legally characterized as settled. As a result, the centrally cleared interest rate swaps included in other assets and other liabilities are presented on a net basis in the accompanying consolidated balance sheets.
|  | Years Ended December 31, |
|  | 2025 |  |  | 2024 |  |  | 2023 |
Derivatives in hedging relationships |  |  |  |  |  |  |  |  |
Amount of gain (loss) reclassified from accumulated other comprehensive income (loss) and recognized in interest and fees on LHFS & LHFI |  | $ | (9,521 | ) |  | $ | (18,132 | ) |  | $ | (16,385 | )
Derivatives not designated as hedging instruments |  |  |  |  |  |  |  |  |
Amount of gain (loss) recognized in mortgage banking, net |  | $ | 7,081 |  |  | $ | (13,965 | ) |  | $ | (5,281 | )
Amount of gain (loss) recognized in bank card and other fees |  |  | 706 |  |  |  | 135 |  |  |  | 271 |
The following table discloses the amount included in other comprehensive income (loss), net of tax, for derivative instruments designated as cash flow hedges for the periods presented ($ in thousands):
|  | Years Ended December 31, |
|  | 2025 |  |  | 2024 |  |  | 2023 |
Derivatives in cash flow hedging relationship |  |  |  |  |  |  |  |  |
Amount of gain (loss) recognized in other comprehensive income (loss), net of tax |  | $ | 6,974 |  |  | $ | (16,674 | ) |  | $ | (6,098 | )
Information about financial instruments that are eligible for offset in the consolidated balance sheets at December 31, 2025 and 2024 is presented in the following tables ($ in thousands):
Offsetting of Derivative Assets |
As of December 31, 2025 |
|  |  |  |  |  |  |  |  |  |  | Gross Amounts Not Offset in the Statement of Financial Position |  |  |  |
|  | Gross Amounts of Recognized Assets |  |  | Gross Amounts Offset in the Statement of Financial Position |  |  | Net Amounts of Assets presented in the Statement of Financial Position |  |  | Financial Instruments |  |  | Cash Collateral Received |  |  | Net Amount |
Derivatives |  | $ | 15,217 |  |  | $ | — |  |  | $ | 15,217 |  |  | $ | (6,271 | ) |  | $ | (1,380 | ) |  | $ | 7,566 |
Offsetting of Derivative Liabilities |
As of December 31, 2025 |
|  |  |  |  |  |  |  |  |  |  | Gross Amounts Not Offset in the Statement of Financial Position |  |  |  |
|  | Gross Amounts of Recognized Liabilities |  |  | Gross Amounts Offset in the Statement of Financial Position |  |  | Net Amounts of Liabilities presented in the Statement of Financial Position |  |  | Financial Instruments |  |  | Cash Collateral Posted |  |  | Net Amount |
Derivatives |  | $ | 20,709 |  |  | $ | — |  |  | $ | 20,709 |  |  | $ | (6,271 | ) |  | $ | (2,200 | ) |  | $ | 12,238 |
Offsetting of Derivative Assets |
As of December 31, 2024 |
|  |  |  |  |  |  |  |  |  |  | Gross Amounts Not Offset in the Statement of Financial Position |  |  |  |
|  | Gross Amounts of Recognized Assets |  |  | Gross Amounts Offset in the Statement of Financial Position |  |  | Net Amounts of Assets presented in the Statement of Financial Position |  |  | Financial Instruments |  |  | Cash Collateral Received |  |  | Net Amount |
Derivatives |  | $ | 15,134 |  |  | $ | — |  |  | $ | 15,134 |  |  | $ | (7,956 | ) |  | $ | (2,000 | ) |  | $ | 5,178 |
Offsetting of Derivative Liabilities |
As of December 31, 2024 |
|  |  |  |  |  |  |  |  |  |  | Gross Amounts Not Offset in the Statement of Financial Position |  |  |  |
|  | Gross Amounts of Recognized Liabilities |  |  | Gross Amounts Offset in the Statement of Financial Position |  |  | Net Amounts of Liabilities presented in the Statement of Financial Position |  |  | Financial Instruments |  |  | Cash Collateral Posted |  |  | Net Amount |
Derivatives |  | $ | 39,775 |  |  | $ | — |  |  | $ | 39,775 |  |  | $ | (7,956 | ) |  | $ | (1,460 | ) |  | $ | 30,359 |

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