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Acquisition | 12 Months Ended
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Dec. 31, 2023
Acquisition |
Acquisition | Note 2: Acquisition ​ On December 1, 2021, the Company completed its acquisition of West Suburban Bancorp, Inc. ("West Suburban"), a bank holding company, and its wholly owned subsidiary, West Suburban Bank, based in Lombard, Illinois, with operations throughout our existing market footprint. This acquisition brought increased scale and new markets to the Company, and provided new product offerings and line of business opportunities. At closing, the Company acquired $2.94 billion of assets, $1.50 billion of loans, $1.07 billion of securities, and $2.69 billion of deposits, net of fair value adjustments. Under the terms of the merger agreement, each outstanding share of West Suburban common stock was exchanged for 42.413 shares of Company common stock, plus $271.15 of cash. This resulted in merger consideration of $295.2 million, based on the closing price of the Company’s common stock on the date of acquisition, which consisted of 15.7 million shares of the Company’s common stock and $100.7 million of cash. Upon closing of the acquisition, goodwill of $67.7 million associated with the acquisition was recorded by the Company, which was the result of expected synergies, operational efficiencies and other factors. ​ The acquisition of West Suburban has been accounted for as a business combination. We recorded the estimate of fair value based on initial valuations available at December 1, 2021. Estimated fair values which are subject to adjustment for up to one year after December 1, 2021 were considered final as of September 30, 2022. Adjustments and reclasses between deferred tax assets and current taxes receivable, which is reported within other assets, were identified during the quarter ended September 30, 2022 based on further analysis after West Suburban Bank tax filings were made. Deferred tax assets increased $3.7 million, which was offset by a decrease in current taxes receivable of $3.9 million, which resulted in an increase to goodwill of $146,000. None of the $67.9 million of goodwill recorded is expected to be deductible for income tax purposes. The following table provides the purchase price allocation as of the December 1, 2021 merger date of the Company and West Suburban and the assets acquired and liabilities assumed at their estimated fair values as of that date, as recorded by the Company. ​ ​
​ | ​ | ​ | ​
West Suburban Acquisition Summary
As of Date of Acquisition
​ | ​ | ​ | ​
​ | ​ | December 1, 2021
Assets | ​ | ​ | ​
Cash and due from banks | ​ | $ | 16,794
Interest bearing deposits with financial institutions | ​ | ​ | 232,880
Securities available-for-sale and held-to maturity, at fair value | ​ | ​ | 1,067,517
FHLBC stock | ​ | ​ | 3,340
Loans, net of allowance for credit losses Day One PCD loan adjustment | ​ | ​ | 1,500,974
Premises and equipment | ​ | ​ | 47,456
Other real estate owned | ​ | ​ | 5,552
Core deposit intangible | ​ | ​ | 14,772
Deferred tax assets | ​ | ​ | 5,819
Other assets | ​ | ​ | 48,838
Total assets | ​ | $ | 2,943,942
​ | ​ | ​ | ​
Liabilities | ​ | ​ | ​
Noninterest bearing demand | ​ | $ | 1,070,980
Savings, NOW and money market | ​ | ​ | 1,408,051
Time | ​ | ​ | 215,205
Total deposits | ​ | ​ | 2,694,236
Reserve for unfunded commitments | ​ | ​ | 1,787
Other liabilities | ​ | ​ | 20,629
Total liabilities | ​ | ​ | 2,716,652
​ | ​ | ​ | ​
Cash consideration paid | ​ | ​ | 100,679
Stock issued for acquisition | ​ | ​ | 194,484
Total Liabilities Assumed and Cash and Stock Consideration Paid for Acquisition | ​ | $ | 3,011,815
Goodwill | ​ | $ | 67,873
​ ​ Expenses related to the West Suburban acquisition totaled $9.1 million and $13.2 million during the year ended December 31, 2022 and 2021, respectively, and are reported within noninterest expense based on the line items impacted, which are primarily salaries and employee benefits, occupancy, furniture and equipment, computer and data processing, legal fees, and other expense in the Consolidated Statements of Income. ​ Purchased loans and leases that reflect a more-than-insignificant deterioration of credit from origination are considered PCD. For PCD loans and leases, the initial estimate of expected credit losses is recognized in the ACL on the date of acquisition using the same methodology as other loans and leases held-for-investment. The following table provides a summary of loans and leases purchased as part of the West Suburban acquisition which were individually evaluated and determined to have credit deterioration at acquisition. ​
​ | ​ | ​ | ​
​ | ​ | As of
West Suburban Acquired PCD Loans | ​ | December 1, 2021
Par value of acquired loans | ​ | $ | 108,241
Allowance for credit losses | ​ | ​ | (12,075)
Non-credit discount | ​ | ​ | (1,723)
Purchase price of PCD loans at acquisition | ​ | $ | 94,443
​ ​ The following table presents the carrying amount of all acquired loans as of December 31, 2023 and December 31, 2022, including loans that, as of the acquisition date, had not experienced a more-than-insignificant deterioration in credit quality since origination (“non-PCD loans”): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Acquired Loan Detail | ​ | As of December 31, 2023 | ​ | ​ | As of December 31, 2022
​ | ​ | PCD | ​ | Non-PCD | ​ | Total | ​ | ​ | PCD | ​ | Non-PCD | ​ | Total
West Suburban acquired loans | ​ | $ | 54,123 | ​ | $ | 822,078 | ​ | $ | 876,201 | ​ | ​ | $ | 75,396 | ​ | $ | 1,059,363 | ​ | $ | 1,134,759
ABC Bank acquired loans | ​ | ​ | 1,602 | ​ | ​ | 21,556 | ​ | ​ | 23,158 | ​ | ​ | ​ | 1,786 | ​ | ​ | 31,895 | ​ | ​ | 33,681
Talmer Bank acquired loans | ​ | ​ | - | ​ | ​ | 12,193 | ​ | ​ | 12,193 | ​ | ​ | ​ | - | ​ | ​ | 15,693 | ​ | ​ | 15,693
Total acquired loans net book value | ​ | $ | 55,725 | ​ | $ | 855,827 | ​ | $ | 911,552 | ​ | ​ | $ | 77,182 | ​ | $ | 1,106,951 | ​ | $ | 1,184,133
Accretion recorded on acquired loans year to date | ​ | $ | 668 | ​ | $ | 1,684 | ​ | $ | 2,352 | ​ | ​ | $ | 848 | ​ | $ | 4,726 | ​ | $ | 5,574
Accretion recorded on acquired unfunded commitments year to date | ​ | ​ | ​ | ​ | ​ | ​ | ​ | $ | 819 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | $ | 893
​ The Company's operating results for the year ended December 31, 2021 includes the operating results of the acquired assets and assumed liabilities of West Suburban subsequent to the acquisition on December 1, 2021. The following table presents unaudited pro forma information as if the acquisition of West Suburban had occurred on January 1, 2020, under the “Unaudited Pro Forma” columns. The pro forma adjustments give effect to any change in interest income due to the accretion of the discount (premium) associated with the fair value adjustments to acquired loans and leases, any change in interest expense due to estimated premium amortization/discount accretion associated with the fair value adjustment to acquired interest-bearing deposits, and the amortization of the CDI that would have resulted had the deposits been acquired as of January 1, 2020. Pro forma results include Old Second and West Suburban acquisition-related expenses which primarily included, but were not limited to, severance costs, professional services, data processing fees, and advertising expenses totaling $25.1 million for the year ended December 31, 2021. The pro forma information does not necessarily reflect the results of operations that would have occurred had the Company acquired West Suburban on January 1, 2020. Furthermore, cost savings and other business synergies related to the acquisition are not reflected in the pro forma amounts. ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | Unaudited Pro Forma for the Years Ended
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | 2021 | ​ | 2020
Net interest income | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | $ | 166,495 | ​ | $ | 165,283
Noninterest income | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | 59,036 | ​ | ​ | 48,937
Net income attributable to Old Second Bancorp, Inc. | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | 67,779 | ​ | ​ | 12,349
​

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