8-K

OLD SECOND BANCORP INC (OSBC)

8-K 2024-01-24 For: 2024-01-24
View Original
Added on April 04, 2026

I

United States

Securities And Exchange Commission Washington, D.C. 20549

FORM 8-K

Current Report

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): January 24, 2024

Graphic(Exact name of registrant as specified in its charter)

Delaware 000-10537 36-3143493
(State or other jurisdiction of incorporation) (Commission File Number) (I.R.S. Employer Identification No.)

37 South River Street Aurora , Illinois **** 60507 (Address of principal executive offices) (Zip code)

( 630 ) 892-0202 (Registrant’s telephone number, including area code)

N/A

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

**** Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

  Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

  Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

  Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

​<br><br>​
Title of each class Trading Symbol(s) Name of each exchange on which registered
Common Stock OSBC The Nasdaq Stock Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 under the Securities Act (17 CFR 230.405) or Rule 12b-2 under the Exchange Act (17 CFR 240.12b-2).

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.  

Item 2.02 Results of Operations and Financial Condition

On January 24, 2024, Old Second Bancorp, Inc. (the “Company’s”) issued a press release announcing its financial results for the fourth quarter ended December 31, 2023, along with certain other financial information. Copies of the Company’s press release and loan portfolio disclosures are attached as Exhibits 99.1 and 99.2, respectively.

Item 9.01 Financial Statements and Exhibits

Exhibit No. Description
99.1 Press Release of Old Second Bancorp, Inc. dated January 24, 2024
99.2 Loan Portfolio Disclosures for Old Second Bancorp, Inc. dated December 31, 2023
104 Cover Page Interactive Data File (the cover page XBRL tags are embedded within the Inline XBRL document)

2

Signature

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

OLD SECOND BANCORP, INC.
Dated: January 24, 2024 By: /s/ Bradley S. Adams
Bradley S. Adams
Executive Vice President,
Chief Operating Officer and
Chief Financial Officer

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Old Second Bancorp, Inc

Graphic

(NASDAQ:OSBC) Exhibit 99.1
Contact: Bradley S. Adams For Immediate Release
Chief Financial Officer January 24, 2024
(630) 906-5484

Old Second Bancorp, Inc. Reports Fourth Quarter 2023 Net Income of $18.2 Million,

or $0.40 per Diluted Share

AURORA, IL, January 24, 2024 – Old Second Bancorp, Inc. (the “Company,” “Old Second,” “we,” “us,” and “our”) (NASDAQ: OSBC), the parent company of Old Second National Bank (the “Bank”), today announced financial results for the fourth quarter of 2023.  Our net income was $18.2 million, or $0.40 per diluted share, for the fourth quarter of 2023, compared to net income of $24.3 million, or $0.54 per diluted share, for the third quarter of 2023, and net income of $23.6 million, or $0.52 per diluted share, for the fourth quarter of 2022. Adjusted net income, a non-GAAP financial measure that excludes nonrecurring litigation related expenses and Visa portfolio liquidation and deconversion costs, as applicable, was $19.1 million, or $0.42 per diluted share, for the fourth quarter of 2023, compared to $24.8 million, or $0.55 per diluted share, for the third quarter of 2023.  See the discussion entitled “Non-GAAP Presentations” below and the tables beginning on page 17 that provide a reconciliation of each non-GAAP measure to the most comparable GAAP equivalent. Noteworthy items impacting fourth quarter 2023 results include a $1.2 million litigation reserve related to prior years’ overdraft fee compliance and $1.3 million in expense related to the fair value of mortgage servicing rights.

Net income decreased $6.1 million in the fourth quarter of 2023 compared to the third quarter of 2023. The decrease was primarily due to the increase of $5.0 million in provision for credit losses, a $1.3 million increase in interest expense, and a decrease in noninterest income of $1.1 million in the fourth quarter of 2023, which were partially offset by a $397,000 decrease in noninterest expense and a $1.4 million decrease in provision for income taxes. Net income decreased $5.4 million in the fourth quarter of 2023 compared to the fourth quarter of 2022, primarily due to an increase in provision for credit losses of $6.5 million and a decrease in net interest income of $2.9 million year over year due to rising market interest rates, which also resulted in an $8.8 million increase in interest expense. These decreases to net income in the fourth quarter of 2023 were partially offset by a decrease in noninterest expenses of $2.7 million. The fourth quarter of 2023 was minimally impacted by a pre-tax net loss on the call of securities of $2,000, compared to more significant pre-tax net losses on the sale of securities of $924,000 and $910,000 in the third quarter of 2023 and the fourth quarter of 2022, respectively.

Operating Results

Fourth quarter 2023 net income was $18.2 million, reflecting a $6.1 million decrease from the third quarter 2023, and a decrease of $5.4 million from the fourth quarter of 2022.  Adjusted net income, as defined above, was $19.1 million for the fourth quarter of 2023, a decrease of $5.7 million from adjusted net income for the third quarter of 2023, and a decrease of $4.9 million from adjusted net income for the fourth quarter of 2022.
Net interest and dividend income was $61.2 million for the fourth quarter of 2023, reflecting a decrease of $1.8 million, or 2.8%, from the third quarter of 2023, and a decrease of $2.9 million, or 4.5%, from the fourth quarter of 2022.
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We recorded a net provision for credit losses of $8.0 million in the fourth quarter of 2023, compared to a net provision for credit losses of $3.0 million in the third quarter of 2023, and a net provision for credit losses of $1.5 million in the fourth quarter of 2022.
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Noninterest income was $8.7 million for the fourth quarter of 2023, a decrease of $1.1 million, or 11.6%, compared to $9.9 million for the third quarter of 2023, and a decrease of $217,000, or 2.4%, compared to $8.9 million for the fourth quarter of 2022.
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Noninterest expense was $37.0 million for the fourth quarter of 2023, a decrease of $397,000, or 1.1% compared to $37.4 million for the third quarter of 2023, and a decrease of $2.7 million, or 6.7%, compared to $39.7 million for the fourth quarter of 2022.
We had a provision for income tax of $6.7 million for the fourth quarter of 2023, compared to a provision for income tax of $8.1 million for the third quarter of 2023 and a provision of $8.2 million for the fourth quarter of 2022. The effective tax rate for each of the periods presented was 26.9%, 25.1%, and 25.9%, respectively.
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On January 16, 2024, our Board of Directors declared a cash dividend of $0.05 per share payable on February 5, 2024, to stockholders of record as of January 26, 2024.
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Financial Highlights

Quarters Ended
(Dollars in thousands) December 31, September 30, December 31,
2023 2023 2022
Balance sheet summary
Total assets $ 5,722,799 $ 5,758,156 $ 5,888,317
Total securities available-for-sale 1,192,829 1,229,618 1,539,359
Total loans 4,042,953 4,029,543 3,869,609
Total deposits 4,570,746 4,614,320 5,110,723
Total liabilities 5,145,518 5,225,598 5,427,176
Total equity 577,281 532,558 461,141
Total tangible assets $ 5,625,104 $ 5,659,858 $ 5,788,161
Total tangible equity 479,586 434,260 360,985
Income statement summary
Net interest income $ 61,235 $ 63,030 $ 64,091
Provision for credit losses 8,000 3,000 1,500
Noninterest income 8,729 9,877 8,946
Noninterest expense 37,026 37,423 39,684
Net income 18,225 24,335 23,615
Effective tax rate 26.92 % 25.09 % 25.86 %
Profitability ratios
Return on average assets (ROAA) 1.27 % 1.67 % 1.58 %
Return on average equity (ROAE) 13.18 18.21 21.09
Net interest margin (tax-equivalent) 4.62 4.66 4.63
Efficiency ratio 50.82 50.08 52.44
Return on average tangible common equity (ROATCE) 16.43 22.80 27.80
Tangible common equity to tangible assets (TCE/TA) 8.53 7.67 6.24
Per share data
Diluted earnings per share $ 0.40 $ 0.54 $ 0.52
Tangible book value per share 10.73 9.72 8.10
Company capital ratios^1^
Common equity tier 1 capital ratio 11.37 % 11.00 % 9.67 %
Tier 1 risk-based capital ratio 11.89 11.52 10.20
Total risk-based capital ratio 14.06 13.84 12.52
Tier 1 leverage ratio 10.06 9.62 8.14
Bank capital ratios ^1, 2^
Common equity tier 1 capital ratio 12.32 % 12.49 % 11.70 %
Tier 1 risk-based capital ratio 12.32 12.49 11.70
Total risk-based capital ratio 13.24 13.57 12.75
Tier 1 leverage ratio 10.41 10.43 9.32

^1^^^Both the Company and the Bank ratios are inclusive of a capital conservation buffer of 2.50%, and both are subject to the minimum capital adequacy guidelines of 7.00%, 8.50%, 10.50%, and 4.00% for the Common equity tier 1, Tier 1 risk-based, Total risk-based and Tier 1 leverage ratios, respectively.

^2^The prompt corrective action provisions are applicable only at the Bank level, and are 6.50%, 8.00%, 10.00%, and 5.00% for the Common equity tier 1, Tier 1 risk-based, Total risk-based and Tier 1 leverage ratios, respectively.

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Chairman, President and Chief Executive Officer Jim Eccher said “Profitability at Old Second remains exceptionally strong and balance sheet strengthening continues with our tangible common equity to tangible assets ratio increasing by 86 basis points linked quarter to 8.53%.  We believe we are being proactive in addressing commercial real estate loans facing deterioration from higher interest rates, declining appraisal values and cash flow pressures.  Importantly, the total of substandard and criticized loans are now at their lowest levels since June 2022 as we have seen previously identified loans work toward resolution and the pace of downgrades has improved dramatically.  The loan portfolio, exclusive of office CRE and healthcare, has remained well behaved and we remain confident in our credit quality overall.  Absent a significant recession, I am optimistic that this quarter will mark the inflection point in our asset quality trends as we have seen the bulk of our loan portfolio reprice and transition into the current interest rate environment. This expectation comes despite Old Second maintaining an economic view that is significantly more cautious than consensus market forecasts. Our focus therefore remains on assessing and monitoring risks within the loan portfolio and optimizing the earning asset mix in order to reduce our overall sensitivity to interest rates.  Net interest margin trends are stable and income statement efficiency remains at record levels. Marginal spreads in deposit and lending markets remain exceptionally tight but balance sheet flexibility and the expectation for continuing record efficiency gives me confidence we are well positioned to deliver another strong year in 2024. I look forward to the opportunity to demonstrate the strength of the franchise we have built.”

Asset Quality & Earning Assets

Nonperforming loans, comprised of nonaccrual loans plus loans past due 90 days or more and still accruing, and, prior to January 1, 2023, performing troubled debt restructurings, totaled $68.8 million at December 31, 2023, $63.3 million at September 30, 2023, and $32.9 million at December 31, 2022.  Nonperforming loans, as a percent of total loans, were 1.7% at December 31, 2023, 1.6% at September 30, 2023, and 0.9% at December 31, 2022.  The increase in the fourth quarter of 2023 is driven by the downgrade of a few credits during the quarter, due primarily to office-related loans and assisted living properties within the commercial real estate-investor portfolio and debt service coverage shortfalls.
Total loans were $4.04 billion at December 31, 2023, reflecting an increase of $13.4 million compared to September 30, 2023, and an increase of $173.3 million compared to December 31, 2022. The increase year over year was largely driven by the growth in leases, commercial real estate-investor, and multifamily portfolios.  Average loans (including loans held-for-sale) for the fourth quarter of 2023 totaled $4.02 billion, reflecting an increase of $5.6 million from the third quarter of 2023 and an increase of $138.3 million from the fourth quarter of 2022.
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Available-for-sale securities totaled $1.19 billion at December 31, 2023, compared to $1.23 billion at September 30, 2023, and $1.54 billion at December 31, 2022.  The unrealized mark to market loss on securities totaled $84.2 million as of December 31, 2023, compared to $120.5 million as of September 30, 2023, and $123.5 million as of December 31, 2022, due to market interest rate fluctuations as well as changes year over year in the composition of the securities portfolio. During the quarter ended December 31, 2023, there were no securities sold, however $55.9 million of maturities and calls resulted in net realized losses of $2,000, compared to sales of $65.6 million during the quarter ended September 30, 2023, which resulted in net realized losses of $924,000, and security sales of $27.7 million for the quarter ended December 31, 2022, which resulted in net realized losses of $910,000.  We may continue to sell strategically identified securities as opportunities arise.
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Net Interest Income

Analysis of Average Balances,
Tax Equivalent Income / Expense and Rates
(Dollars in thousands - unaudited)
Quarters Ended
December 31, 2023 September 30, 2023 December 31, 2022
Average Income / Rate Average Income / Rate Average Income / Rate
Balance Expense % Balance Expense % Balance Expense %
Assets
Interest earning deposits with financial institutions $ 47,865 $ 616 5.11 $ 49,737 $ 659 5.26 $ 50,377 $ 461 3.63
Securities:
Taxable 1,027,366 8,329 3.22 1,125,688 8,946 3.15 1,404,437 10,495 2.96
Non-taxable (TE)^1^ 164,655 1,674 4.03 169,523 1,687 3.95 171,567 1,697 3.92
Total securities (TE)^1^ 1,192,021 10,003 3.33 1,295,211 10,633 3.26 1,576,004 12,192 3.07
FHLBC and FRBC Stock 34,371 647 7.47 35,954 597 6.59 19,534 259 5.26
Loans and loans held-for-sale^1, 2^ 4,016,480 62,793 6.20 4,010,859 62,705 6.20 3,878,228 55,195 5.65
Total interest earning assets 5,290,737 74,059 5.55 5,391,761 74,594 5.49 5,524,143 68,107 4.89
Cash and due from banks 57,723 - - 57,279 - - 56,531 - -
Allowance for credit losses on loans (50,023) - - (54,581) - - (48,778) - -
Other noninterest bearing assets 396,297 - - 384,059 - - 395,726 - -
Total assets $ 5,694,734 $ 5,778,518 $ 5,927,622
Liabilities and Stockholders' Equity
NOW accounts $ 563,603 $ 595 0.42 $ 576,138 $ 440 0.30 $ 623,408 $ 225 0.14
Money market accounts 692,720 2,200 1.26 720,488 1,767 0.97 901,950 477 0.21
Savings accounts 985,614 517 0.21 1,027,987 351 0.14 1,155,409 74 0.03
Time deposits 497,472 2,833 2.26 466,250 1,982 1.69 450,111 571 0.50
Interest bearing deposits 2,739,409 6,145 0.89 2,790,863 4,540 0.65 3,130,878 1,347 0.17
Securities sold under repurchase agreements 28,526 51 0.71 24,945 27 0.43 33,275 10 0.12
Other short-term borrowings 390,652 5,429 5.51 427,174 5,840 5.42 44,293 436 3.91
Junior subordinated debentures 25,773 290 4.46 25,773 245 3.77 25,773 287 4.42
Subordinated debentures 59,372 546 3.65 59,350 547 3.66 59,286 546 3.65
Senior notes - - - - - - 44,572 891 7.93
Notes payable and other borrowings - - - - - - 9,978 137 5.45
Total interest bearing liabilities 3,243,732 12,461 1.52 3,328,105 11,199 1.34 3,348,055 3,654 0.43
Noninterest bearing deposits 1,838,325 - - 1,867,201 - - 2,083,503 - -
Other liabilities 63,971 - - 53,164 - - 51,753 - -
Stockholders' equity 548,706 - - 530,048 - - 444,311 - -
Total liabilities and stockholders' equity $ 5,694,734 $ 5,778,518 $ 5,927,622
Net interest income (GAAP) $ 61,235 $ 63,030 $ 64,091
Net interest margin (GAAP) 4.59 4.64 4.60
Net interest income (TE)^1^ $ 61,598 $ 63,395 $ 64,453
Net interest margin (TE)^1^ 4.62 4.66 4.63
Interest bearing liabilities to earning assets 61.31 % 61.73 % 60.61 %

^1^ Tax equivalent (TE) basis is calculated using a marginal tax rate of 21% in 2023 and 2022. See the discussion entitled “Non-GAAP Presentations” below and the tables beginning on page 17 that provides a reconciliation of each non-GAAP measure to the most comparable GAAP equivalent.

^2^ Interest income from loans is shown on a tax equivalent basis, which is a non-GAAP financial measure as discussed in the table on page 17, and includes loan fee expense of $922,000 for the fourth quarter of 2023, loan fee expense of $780,000 for the third quarter of 2023, and loan fee income of $916,000 the fourth quarter of 2022. Nonaccrual loans are included in the above stated average balances.

The increased yield of six basis points on interest earning assets compared to the linked period was driven by repricing within the existing variable rate portfolios for securities available-for-sale. Changes in the market interest rate environment impact earning assets at varying intervals depending on the repricing timeline of loans, as well as the securities maturity, paydown and purchase activities.

The year over year increase of 66 basis points on interest earning assets was driven by significant increases to benchmark interest rates as well as strong loan growth throughout the period, specifically within the leases, commercial real estate and multifamily portfolios, as these loan segments generally produce the greatest yield. The increases in benchmark interest rates impacted yields on the securities portfolio through the inverse relationship between interest 4

rates and market value coupled with maturities and strategic sales of lower yielding assets, as we work to increase the weighted average yield in the portfolio.

Average balances of interest-bearing deposit accounts have decreased steadily since the fourth quarter of 2022 through the fourth quarter of 2023, from $3.13 billion to $2.74 billion, with decreases reflected in all deposit categories, excluding time deposits. We have continued to control the cost of funds over the periods reflected, with the rate of overall interest-bearing deposits increasing to 89 basis points for the quarter ended December 31, 2023, from 65 basis points for the quarter ended September 30, 2023, and from 17 basis points for the quarter ended December 31, 2022. A 29 basis point increase in the cost of money market funds for the quarter ended December 31, 2023 compared to prior linked quarter, and a 105 basis point increase compared to the prior year like quarter were both due to select deposit account exception pricing, and drove a significant portion of the overall increase.  Average rates paid on time deposits for the quarter ended December 31, 2023 increased by 57 basis points and 176 basis points in the quarter over linked quarter and year over year quarters, respectively, primarily due to CD rate specials we offered.

Borrowing costs decreased in the fourth quarter of 2023, compared to the third quarter of 2023, primarily due to the decrease in average other short-term borrowings of $36.5 million stemming from a decrease in average FHLB advances over the prior quarter. Partially offsetting the decrease in borrowing costs in the fourth quarter of 2023 was the increase in average securities sold under repurchase agreements of $3.6 million. The increase of $346.4 million year over year of average FHLB advances was based on daily liquidity needs. Subordinated and junior subordinated debt interest expense were essentially flat over each of the periods presented. Senior notes had the most significant interest expense decrease, as we had redeemed all of the $45.0 million senior notes, net of deferred issuance costs, in June 2023, resulting in senior notes having no balance after that time. In February 2023, we paid off the remaining balance of $9.0 million on the original $20.0 million term note issued in 2020, resulting in notes payable and other borrowings having no balance after that time.

Our net interest margin (GAAP) decreased five basis points to 4.59% for the fourth quarter of 2023, compared to 4.64% for the third quarter of 2023, and decreased one basis point compared to 4.60% for the fourth quarter of 2022.  Our net interest margin (TE) decreased four basis points to 4.62% for the fourth quarter of 2023, compared to 4.66% for the third quarter of 2023, and decreased one basis point compared to 4.63% for the fourth quarter of 2022.  The decrease in the fourth quarter, compared to the prior quarter, is primarily due to the growth in interest expense due to the rising interest rate environment and its effect on interest bearing deposits. The decrease in the fourth quarter of 2023, compared to the prior year like quarter, is primarily due to an increase in market interest rates, and the related increase in costs of interest-bearing liabilities. See the discussion entitled “Non-GAAP Presentations” and the tables beginning on page 17 that provide a reconciliation of each non-GAAP measure to the most comparable GAAP equivalent.

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Noninterest Income

4th Quarter 2023
Noninterest Income Three Months Ended Percent Change From
(Dollars in thousands) December 31, September 30, December 31, September 30, December 31,
2023 **** 2023 **** 2022 **** 2023 **** 2022
Wealth management $ 2,600 $ 2,475 $ 2,403 5.1 8.2
Service charges on deposits 2,527 2,504 2,499 0.9 1.1
Residential mortgage banking revenue
Secondary mortgage fees 58 66 62 (12.1) (6.5)
MSRs mark to market (loss) gain (1,277) 281 (431) (554.4) (196.3)
Mortgage servicing income 495 519 518 (4.6) (4.4)
Net gain on sales of mortgage loans 366 407 340 (10.1) 7.6
Total residential mortgage banking revenue (358) 1,273 489 (128.1) (173.2)
Securities losses, net (2) (924) (910) 99.8 99.8
Change in cash surrender value of BOLI 541 919 376 (41.1) 43.9
Card related income 2,511 2,606 2,795 (3.6) (10.2)
Other income 910 1,024 1,294 (11.1) (29.7)
Total noninterest income $ 8,729 $ 9,877 $ 8,946 (11.6) (2.4)

Noninterest income decreased $1.1 million, or 11.6%, in the fourth quarter of 2023, compared to the third quarter of 2023, and decreased $217,000, or 2.4%, compared to the fourth quarter of 2022.  The decrease from the third quarter of 2023 was primarily driven by a $1.6 million decrease in residential mortgage banking revenue, a $378,000 decrease in the cash surrender value of BOLI, and a $114,000 decrease in other income, partially offset by a $922,000 decrease in security losses, net, based on strategic sales in the third quarter of 2023 compared to none during the fourth quarter of 2023.

The decrease in noninterest income of $217,000 in the fourth quarter of 2023, compared to the fourth quarter of 2022, is primarily due to an increase of $846,000 on mortgage servicing rights mark to market losses, a $284,000 decrease in card related income, and a $384,000 decrease in other income. These decreases were partially offset by a $197,000 increase in wealth management income, a $908,000 decrease in security losses, net, based on strategic sales in the fourth quarter of 2022 compared to none during the fourth quarter of 2023, and a $165,000 increase in the cash surrender value of BOLI due to market interest rate changes.

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Noninterest Expense

4th Quarter 2023
Noninterest Expense Three Months Ended Percent Change From
(Dollars in thousands) December 31, September 30, December 31, September 30, December 31,
2023 **** 2023 **** 2022 **** 2023 **** 2022
Salaries $ 16,738 $ 17,279 $ 18,268 (3.1) (8.4)
Officers' incentive 1,450 2,773 3,095 (47.7) (53.2)
Benefits and other 3,217 3,063 2,900 5.0 10.9
Total salaries and employee benefits 21,405 23,115 24,263 (7.4) (11.8)
Occupancy, furniture and equipment expense 3,817 3,506 4,128 8.9 (7.5)
Computer and data processing 2,291 1,922 2,978 19.2 (23.1)
FDIC insurance 583 744 630 (21.6) (7.5)
Net teller & bill paying 564 534 485 5.6 16.3
General bank insurance 301 300 298 0.3 1.0
Amortization of core deposit intangible asset 603 616 645 (2.1) (6.5)
Advertising expense 383 93 130 311.8 194.6
Card related expense 1,338 1,347 1,304 (0.7) 2.6
Legal fees 228 97 225 135.1 1.3
Consulting & management fees 556 549 679 1.3 (18.1)
Other real estate owned expense, net 218 (27) 34 907.4 541.2
Other expense 4,739 4,627 3,885 2.4 22.0
Total noninterest expense $ 37,026 $ 37,423 $ 39,684 (1.1) (6.7)
Efficiency ratio (GAAP)^1^ 50.82 % 50.08 % 52.44 %
Adjusted efficiency ratio (non-GAAP)^2^ 48.76 % 48.82 % 51.29 %

^1^The efficiency ratio shown in the table above is a GAAP financial measure calculated as noninterest expense, excluding amortization of core deposits and OREO expenses, divided by the sum of net interest income and total noninterest income less net gains or losses on securities and mark to market gains or losses on MSRs.

^2^ The adjusted efficiency ratio shown in the table above is a non-GAAP financial measure calculated as noninterest expense, excluding amortization of core deposits, OREO expenses, litigation expense, and acquisition-related costs, net of gains on branch sales (as applicable), Visa credit card portfolio liquidation and related deconversion costs, as well as any merger related costs, if applicable, divided by the sum of net interest income on a fully tax equivalent basis, total noninterest income less net gains or losses on securities, mark to market gains or losses on MSRs, gain on the sale of our Visa credit card and land trust portfolios, and includes a tax equivalent adjustment on the change in cash surrender value of BOLI.  See the discussion entitled “Non-GAAP Presentations” below and the table on page 18 that provides a reconciliation of this non-GAAP financial measure to the most comparable GAAP equivalent.

Noninterest expense for the fourth quarter of 2023 decreased $397,000, or 1.1%, compared to the third quarter of 2023, and decreased $2.7 million, or 6.7%, compared to the fourth quarter of 2022.  The decrease in the fourth quarter of 2023 compared to the third quarter of 2023 was attributable to a $1.7 million decrease in salaries and employee benefits, primarily due to a decrease in the officer incentive accrual and to a lesser extent various components of salary expense.  Also contributing to the decrease in the fourth quarter of 2023 was a $161,000 decrease in FDIC insurance due to a reduction in total assets assessed.  Partially offsetting the decrease in noninterest expense in the fourth quarter of 2023 was a $311,000 increase in occupancy, furniture and equipment, a $369,000 increase in computer and data processing, a $290,000 increase in advertising expense, and a $245,000 increase in OREO related expenses due to two additions to OREO during the fourth quarter of 2023 quarter totaling $4.9 million.

The year over year decrease in noninterest expense is primarily attributable to a $2.9 million decrease in salaries and employee benefits, primarily due to a decrease in various components of salary expense as well as officers’ incentives. Also contributing to the decrease was a $311,000 decrease in occupancy, furniture and equipment, a $687,000 decrease in computer and data processing, and a $123,000 decrease in consulting and management fees. The elevated expense totals in the fourth quarter of 2022 were driven by the final merger-related costs recorded stemming from the West Suburban acquisition in December 2021. Partially offsetting the decrease in noninterest expense in the fourth quarter of 2023, compared to the fourth quarter of 2022, was a $253,000 increase in advertising expenses, a $184,000 increase in OREO related expenses, and a $854,000 increase in other expenses due to a $1.2 million litigation expense recorded in the fourth quarter of 2023 for a pending overdraft fee compliance claim. 7

Earning Assets

December 31, 2023
Loans As of Percent Change From
(Dollars in thousands) December 31, September 30, December 31, September 30, December 31,
2023 2023 2022 2023 **** 2022
Commercial $ 841,697 $ 834,877 $ 840,964 0.8 0.1
Leases 398,223 354,827 277,385 12.2 43.6
Commercial real estate – investor 1,034,424 1,047,122 987,635 (1.2) 4.7
Commercial real estate – owner occupied 796,538 809,050 854,879 (1.5) (6.8)
Construction 165,380 202,546 180,535 (18.3) (8.4)
Residential real estate – investor 52,595 53,762 57,353 (2.2) (8.3)
Residential real estate – owner occupied 226,248 227,446 219,718 (0.5) 3.0
Multifamily 401,696 372,020 323,691 8.0 24.1
HELOC 103,237 102,055 109,202 1.2 (5.5)
Other^1^ 22,915 25,838 18,247 (11.3) 25.6
Total loans $ 4,042,953 $ 4,029,543 $ 3,869,609 0.3 4.5

^1^Other class includes consumer loans and overdrafts.

Total loans increased by $13.4 million at December 31, 2023, compared to September 30, 2023, and increased $173.3 million for the year over year period.  Loan growth of $173.3 million in the year over year period was driven by growth in leasing, commercial real estate – investor, and multifamily loans.

December 31, 2023
Securities As of Percent Change From
(Dollars in thousands) December 31, September 30, December 31, September 30, December 31,
**** 2023 **** 2023 **** 2022 2023 **** 2022
Securities available-for-sale, at fair value
U.S. Treasury $ 169,574 $ 216,777 $ 212,129 (21.8) (20.1)
U.S. government agencies 56,959 55,821 56,048 2.0 1.6
U.S. government agency mortgage-backed 106,370 104,569 124,990 1.7 (14.9)
States and political subdivisions 229,335 220,100 226,128 4.2 1.4
Corporate bonds - 4,961 9,622 (100.0) (100.0)
Collateralized mortgage obligations 392,544 386,679 533,768 1.5 (26.5)
Asset-backed securities 66,166 66,916 201,928 (1.1) (67.2)
Collateralized loan obligations 171,881 173,795 174,746 (1.1) (1.6)
Total securities available-for-sale $ 1,192,829 $ 1,229,618 $ 1,539,359 (3.0) (22.5)

Our securities portfolio totaled $1.19 billion fair market value as of December 31, 2023, a decrease of $36.8 million from $1.23 billion as of September 30, 2023, and a decrease of $346.5 million since December 31, 2022. The portfolio reduction of $36.8 million in the fourth quarter of 2023, compared to the prior quarter-end, was due to maturities and calls of $55.9 million as well as paydowns of $25.6 million, partially offset by the effects of declining interest rates which increased fair market value. Net unrealized losses at December 31, 2023 were $84.2 million, compared to $120.5 million at September 30, 2023 and $123.5 million at December 30, 2022. The year over year decrease in net unrealized losses is due to changes in the market interest rate environment as well as the impact of security sales undertaken to further reduce the portfolio’s interest rate sensitivity. The portfolio continues to consist of high quality fixed-rate and floating-rate securities, with more than 99% of publicly issued securities rated AA or better.

​ 8

Asset Quality

December 31, 2023
Nonperforming assets As of Percent Change From
(Dollars in thousands) December 31, September 30, December 31, September 30, December 31,
2023 **** 2023 **** 2022 **** 2023 2022
Nonaccrual loans $ 67,583 $ 62,116 $ 31,602 8.8 113.9
Performing troubled debt restructured loans accruing interest ^1^ N/A N/A 49 N/A N/A
Loans past due 90 days or more and still accruing interest 1,196 1,209 1,262 (1.1) (5.2)
Total nonperforming loans 68,779 63,325 32,913 8.6 109.0
Other real estate owned 5,123 407 1,561 N/M 228.2
Total nonperforming assets $ 73,902 $ 63,732 $ 34,474 16.0 114.4
30-89 days past due loans and still accruing interest $ 13,668 $ 28,486 $ 7,508
Nonaccrual loans to total loans 1.7 % 1.5 % 0.8 %
Nonperforming loans to total loans 1.7 % 1.6 % 0.9 %
Nonperforming assets to total loans plus OREO 1.8 % 1.6 % 0.9 %
Purchased credit-deteriorated loans to total loans 1.4 % 1.5 % 2.0 %
Allowance for credit losses $ 44,264 $ 51,729 $ 49,480
Allowance for credit losses to total loans 1.1 % 1.3 % 1.3 %
Allowance for credit losses to nonaccrual loans 65.5 % 83.3 % 156.6 %

N/A - Not applicable.

N/M - Not meaningful.

^1^As of January 1, 2023, the Company prospectively adopted ASU 2022-02, Topic 326 “Troubled Debt Restructurings (“TDRs”) and Vintage Disclosures”, which eliminated the need for recognition, measurement and disclosure of TDRs going forward.

Nonperforming loans consist of nonaccrual loans and loans 90 days or more past due and still accruing interest.  Prior to January 1, 2023, nonperforming loans also included performing troubled debt restructured loans accruing interest.  Purchased credit-deteriorated (“PCD”) loans acquired in our acquisitions of West Suburban and ABC Bank totaled $55.7 million, net of purchase accounting adjustments, at December 31, 2023.  PCD loans that meet the definition of nonperforming loans are included in our nonperforming disclosures.  Nonperforming loans to total loans was 1.7% as of December 31, 2023, 1.6% as of September 30, 2023, and 0.9% as of December 31, 2022. Nonperforming assets to total loans plus OREO was 1.8% as of December 31, 2023, 1.6% as of September 30, 2023, and 0.9% as of December 31, 2022. Our allowance for credit losses to total loans was 1.1% as of December 31, 2023, and 1.3% as of September 30, 2023 and December 31, 2022.

The following table shows classified loans by segment, which include nonaccrual loans, PCD loans if the risk rating so indicates, and all other loans considered substandard, for the following periods.

December 31, 2023
Classified loans As of Percent Change From
(Dollars in thousands) December 31, September 30, December 31, September 30, December 31,
**** 2023 **** 2023 **** 2022 2023 **** 2022
Commercial $ 8,414 $ 18,298 $ 26,485 (54.0) (68.2)
Leases 818 574 1,876 42.5 (56.4)
Commercial real estate – investor 43,798 54,126 27,410 (19.1) 59.8
Commercial real estate – owner occupied 54,613 55,292 40,890 (1.2) 33.6
Construction 17,155 17,263 1,333 (0.6) N/M
Residential real estate – investor 1,331 1,502 1,714 (11.4) (22.3)
Residential real estate – owner occupied 3,216 3,627 3,854 (11.3) (16.6)
Multifamily 1,775 1,141 2,954 55.6 (39.9)
HELOC 1,664 1,434 2,411 16.0 (31.0)
Other^1^ - - 2 - (100.0)
Total classified loans $ 132,784 $ 153,257 $ 108,929 (13.4) 21.9

N/M - Not meaningful.

^1^Other class includes consumer loans and overdrafts.

​ 9

Classified loans as of December 31, 2023 decreased by $20.5 million from September 30, 2023, and increased by $23.9 million from December 31, 2022. The net decrease from the third quarter of 2023 was mostly driven by seven loans that had principal charge offs, totaling $15.8 million, seven loans that were upgraded totaling $11.8 million, and two loans that were transferred to OREO, totaling $4.9 million. These decreases in classified loans in the fourth quarter were offset by $18.6 million of additions, primarily driven by three loans in commercial real estate – owner occupied which totaled $11.1 million and seven loans in commercial which totaled $4.2 million.  Remediation work continues on these credits, with the goal of cash flow improvements with increased tenancy.  Reductions in commercial classified loans were noted in the fourth quarter of 2023 from the linked quarter due to ongoing remediation efforts.

Allowance for Credit Losses on Loans and Unfunded Commitments

At December 31, 2023, our allowance for credit losses (“ACL”) on loans totaled $44.3 million, and our ACL on unfunded commitments, included in other liabilities, totaled $2.7 million.  In the fourth quarter of 2023, we recorded provision expense of $8.0 million based on historical loss rate updates, loan growth, our assessment of nonperforming loan metrics and trends, and estimated future credit losses. The fourth quarter’s provision expense consisted of a $8.0 million provision for credit losses on loans, and a $6,000 provision for credit losses on unfunded commitments.  The increase in ACL on unfunded commitments was primarily due to an adjustment of historical benchmark assumptions, such as funding rates and the period used to forecast those rates, within the ACL calculation.  We recorded net charge-offs of $15.5 million in the fourth quarter of 2023, which reduced the ACL. The majority of the fourth quarter charge offs were specific to seven borrowers within the commercial real estate portfolio on which we had existing specific allocations within the ACL of $2.5 million at September 30, 2023. The third quarter 2023 provision expense of $3.0 million consisted of a $3.0 million provision for credit losses on loans, and a $11,000 reversal of provision for credit losses on unfunded commitments. We recorded net charge-offs of $6.6 million in the third quarter of 2023. In the fourth quarter of 2022, we recorded provision expense of $1.5 million based on our assessment of nonperforming loan metrics and trends and estimated future credit losses.  We recorded net charge-offs of $940,000 in the fourth quarter of 2022, which reduced the ACL. Our ACL on loans to total loans was 1.1% as of December 31, 2023 and 1.3% as of September 30, 2023 and December 31, 2022.

The $143,000 decrease in our ACL on unfunded commitments at December 31, 2023, compared to September 30, 2023, was driven by purchase accounting accretion of $149,000 on unfunded commitments recorded during the quarter, partially offset by $6,000 of provision expense in the quarter discussed above.  The ACL on unfunded commitments totaled $2.7 million as of December 31, 2023, $2.9 million as of September 30, 2023, and $5.1 million as of December 31, 2022.

Net Charge-off Summary

Loan charge–offs, net of recoveries Quarters Ended
(Dollars in thousands) December 31, % of September 30, % of December 31, % of
2023 Total ^2^ 2023 Total ^2^ 2022 Total ^2^
Commercial $ 71 0.5 $ 8 0.1 $ (8) (0.9)
Leases (8) (0.1) (95) (1.4) 191 20.3
Commercial real estate – Investor 4,951 32.0 6,754 102.4 776 82.6
Commercial real estate – Owner occupied 10,443 67.5 23 0.3 (2) (0.2)
Construction - - (100) (1.5) - -
Residential real estate – Investor (3) - (3) - (7) (0.7)
Residential real estate – Owner occupied (8) (0.1) (25) (0.4) - -
Multifamily - - - - (6) (0.6)
HELOC (17) (0.1) (35) (0.5) (38) (4.0)
Other^1^ 31 0.3 70 1.0 34 3.5
Net charge–offs / (recoveries) $ 15,460 100.0 $ 6,597 100.0 $ 940 100.0

^1^Other class includes consumer loans and overdrafts.

^2^^^Represents the percentage of net charge-offs attributable to each category of loans.

Gross charge-offs for the fourth quarter of 2023 were $16.0 million, compared to $6.9 million for the third quarter of 2023 and $1.1 million for the fourth quarter of 2022.  Gross recoveries were $491,000 for the fourth quarter of 2023, compared to $339,000 for the third quarter of 2023, and $136,000 for the fourth quarter of 2022.  Continued recoveries are indicative of the ongoing aggressive efforts by management to effectively manage and resolve prior charge-offs.

​ 10

Deposits

Total deposits were $4.57 billion at December 31, 2023, a decrease of $43.6 million, or 0.9%, compared to $4.61 billion at September 30, 2023, primarily due to a decline in savings of $32.2 million, followed by a decrease of $30.9 million in money markets and $27.8 million in non-interest bearing deposits. The large decreases were partially offset by an increase of $49.9 million in certificates of deposit. The bulk of the linked quarter decline in deposit balances occurred in October 2023 and is consistent with seasonal historical trends related to tax payments and commercial customer business volumes. Total quarterly average deposits decreased $636.6 million, or 12.2%, in the year over year period, driven by declines in our average demand deposits of $245.2 million, and savings, NOW and money markets combined of $438.8 million. In general, the bulk of the decline in deposits year over year can be characterized as rate sensitive with significant flows and transfers into investing activities, materially offsetting the significant expansion in those same accounts in the immediate aftermath of the pandemic.

Borrowings

As of December 31, 2023, we had $405.0 million in other short-term borrowings due to short-term FHLB advances, compared to $435.0 million at September 30, 2023, and $90.0 million as of December 31, 2022.

Non-GAAP Presentations

Management has disclosed in this earnings release certain non-GAAP financial measures to evaluate and measure our performance, including the presentation of adjusted net income, net interest income and net interest margin on a fully taxable equivalent basis, and our efficiency ratio calculations on a taxable equivalent basis. The net interest margin fully taxable equivalent is calculated by dividing net interest income on a tax equivalent basis by average earning assets for the period.  Consistent with industry practice, management has disclosed the efficiency ratio including and excluding certain items, which is discussed in the noninterest expense presentation on page 7.

We consider the use of select non-GAAP financial measures and ratios to be useful for financial and operational decision making and useful in evaluating period-to-period comparisons.  We believe that these non-GAAP financial measures provide meaningful supplemental information regarding our performance by excluding certain expenditures or assets that we believe are not indicative of our primary business operating results or by presenting certain metrics on a fully taxable equivalent basis.  We believe these measures provide investors with information regarding balance sheet profitability, and we believe that management and investors benefit from referring to these non-GAAP financial measures in assessing our performance and when planning, forecasting, analyzing, and comparing past, present and future periods.

These non-GAAP financial measures should not be considered as a substitute for GAAP financial measures, and we strongly encourage investors to review the GAAP financial measures included in this earnings release and not to place undue reliance upon any single financial measure. In addition, because non-GAAP financial measures are not standardized, it may not be possible to compare the non-GAAP financial measures presented in this earnings release with other companies’ non-GAAP financial measures having the same or similar names. The tables beginning on page 17 provide a reconciliation of each non-GAAP financial measure to the most comparable GAAP equivalent.

Cautionary Note Regarding Forward-Looking Statements

**** This earnings release and statements by our management may contain forward-looking statements within the Private Securities Litigation Reform Act of 1995.  Forward looking statements can be identified by words such as “should,” “anticipate,” “expect,” “estimate,” “intend,” “believe,” “may,” “likely,” “will,” “forecast,” “project,” “looking forward,” “optimistic,” “hopeful,” “potential,” “progress,” “prospect,” “remain,” “deliver,” “continue,” “trend,” “momentum,” “remainder,” “beyond,” “and “near” or other statements that indicate future periods.  Examples of forward-looking statements include, but are not limited to, statements regarding the economic outlook, loan growth, deposit trends and funding, asset-quality trends, balance sheet growth, and building capital. Such forward-looking statements are subject to risks, uncertainties, and other factors, which could cause actual results to differ materially from future results expressed or implied by such forward-looking statements.  The following factors, among others, could cause actual results to differ materially from the anticipated results or other expectations expressed in the forward-looking statements, (1) the strength of the United States economy in general and the strength of the local economies in which we conduct our operations may be different than expected; (2) the rate of delinquencies and amounts of charge-offs, the level of allowance for credit loss, the rates of loan growth, or adverse changes in asset quality in our loan portfolio, which may result in increased credit risk-related losses and expenses; (3) changes in legislation, regulation, policies, or administrative practices, whether by judicial, governmental, or legislative action; (4) risks related to future 11

acquisitions, if any, including execution and integration risks; (5) adverse conditions in the stock market, the public debt market and other capital markets (including changes in interest rate conditions) could have a negative impact on us; (6) changes in interest rates, which has and may continue to affect our deposit and funding costs, net income, prepayment penalty income, mortgage banking income, and other future cash flows, or the market value of our assets, including our investment securities; (7) elevated inflation which causes adverse risk to the overall economy, and could indirectly pose challenges to our clients and to our business; and (8) the adverse effects of events beyond our control that may have a destabilizing effect on financial markets and the economy, such as epidemics and pandemics, war or terrorist activities, essential utility outages, deterioration in the global economy, instability in the credit markets, disruptions in our customers’ supply chains or disruption in transportation. Additional risks and uncertainties are contained in the “Risk Factors” and forward-looking statements disclosure in our most recent Annual Report on Form 10-K, and Quarterly Reports on Form 10-Q. The inclusion of this forward-looking information should not be construed as a representation by us or any person that future events, plans, or expectations contemplated by us will be achieved. We undertake no obligation to publicly update or revise any forward-looking statements, whether as a result of new information, future events, or otherwise, except as required by law.

Conference Call

We will host a call on Thursday, January 25, 2024, at 11:00 a.m. Eastern Time (10:00 a.m. Central Time) to discuss our fourth quarter 2023 financial results.  Investors may listen to our call via telephone by dialing 888-506-0062, using Entry Code: 675276.  Investors should call into the dial-in number set forth above at least 10 minutes prior to the scheduled start of the call.

A replay of the call will be available until 11:00 a.m. Eastern Time (10:00 a.m. Central Time) on February 1, 2024, by dialing 877-481-4010, using Conference ID: 49609. 12

Old Second Bancorp, Inc. and Subsidiaries

Consolidated Balance Sheets

(In thousands)

December 31, December 31,
**** 2023 2022
Assets
Cash and due from banks $ 55,534 $ 56,632
Interest earning deposits with financial institutions 44,611 58,545
Cash and cash equivalents 100,145 115,177
Securities available-for-sale, at fair value 1,192,829 1,539,359
Federal Home Loan Bank Chicago (“FHLBC”) and Federal Reserve Bank Chicago (“FRBC”) stock 33,355 20,530
Loans held-for-sale 1,322 491
Loans 4,042,953 3,869,609
Less: allowance for credit losses on loans 44,264 49,480
Net loans 3,998,689 3,820,129
Premises and equipment, net 79,310 72,355
Other real estate owned 5,123 1,561
Mortgage servicing rights, at fair value 10,344 11,189
Goodwill 86,478 86,478
Core deposit intangible 11,217 13,678
Bank-owned life insurance (“BOLI”) 109,318 106,608
Deferred tax assets, net 31,077 44,750
Other assets 63,592 56,012
Total assets $ 5,722,799 $ 5,888,317
Liabilities
Deposits:
Noninterest bearing demand $ 1,834,891 $ 2,051,702
Interest bearing:
Savings, NOW, and money market 2,207,949 2,617,100
Time 527,906 441,921
Total deposits 4,570,746 5,110,723
Securities sold under repurchase agreements 26,470 32,156
Other short-term borrowings 405,000 90,000
Junior subordinated debentures 25,773 25,773
Subordinated debentures 59,382 59,297
Senior notes - 44,585
Notes payable and other borrowings - 9,000
Other liabilities 58,147 55,642
Total liabilities 5,145,518 5,427,176
Stockholders’ Equity
Common stock 44,705 44,705
Additional paid-in capital 202,223 202,276
Retained earnings 393,311 310,512
Accumulated other comprehensive loss (62,781) (93,124)
Treasury stock (177) (3,228)
Total stockholders’ equity 577,281 461,141
Total liabilities and stockholders’ equity $ 5,722,799 $ 5,888,317

​ 13

Old Second Bancorp, Inc. and Subsidiaries

Consolidated Statements of Income

(In thousands, except share data)

Three Months Ended December 31, Year Ended December 31,
**** 2023 **** 2022 **** 2023 **** 2022 ****
Interest and dividend income
Loans, including fees $ 62,751 $ 55,170 $ 244,187 $ 176,379
Loans held-for-sale 31 19 91 130
Securities:
Taxable 8,329 10,495 37,940 31,566
Tax exempt 1,322 1,341 5,329 5,287
Dividends from FHLBC and FRBC stock 647 259 1,920 936
Interest bearing deposits with financial institutions 616 461 2,503 2,175
Total interest and dividend income 73,696 67,745 291,970 216,473
Interest expense
Savings, NOW, and money market deposits 3,312 776 8,761 1,900
Time deposits 2,834 571 6,636 1,448
Securities sold under repurchase agreements 50 10 93 40
Other short-term borrowings 5,429 436 18,774 480
Junior subordinated debentures 290 287 1,095 1,136
Subordinated debentures 546 546 2,185 2,185
Senior notes - 891 2,408 2,682
Notes payable and other borrowings - 137 87 446
Total interest expense 12,461 3,654 40,039 10,317
Net interest and dividend income 61,235 64,091 251,931 206,156
Provision for credit losses 8,000 1,500 16,501 6,550
Net interest and dividend income after provision for credit losses 53,235 62,591 235,430 199,606
Noninterest income
Wealth management 2,600 2,403 9,803 9,887
Service charges on deposits 2,527 2,499 9,817 9,562
Secondary mortgage fees 58 62 259 332
Mortgage servicing rights mark to market (loss) gain (1,277) (431) (1,425) 3,177
Mortgage servicing income 495 518 2,029 2,130
Net gain on sales of mortgage loans 366 340 1,477 2,022
Securities losses, net (2) (910) (4,148) (944)
Change in cash surrender value of BOLI 541 376 2,120 718
Card related income 2,511 2,795 10,051 10,989
Other income 910 1,294 4,196 5,243
Total noninterest income 8,729 8,946 34,179 43,116
Noninterest expense
Salaries and employee benefits 21,405 24,263 88,566 86,573
Occupancy, furniture and equipment 3,817 4,128 14,437 14,992
Computer and data processing 2,291 2,978 7,277 15,795
FDIC insurance 583 630 2,705 2,401
Net teller & bill paying 564 485 2,115 3,730
General bank insurance 301 298 1,212 1,221
Amortization of core deposit intangible 603 645 2,461 2,626
Advertising expense 383 130 721 589
Card related expense 1,338 1,304 5,123 4,348
Legal fees 228 225 927 873
Consulting & management fees 556 679 2,415 2,425
Other real estate expense, net 218 34 399 130
Other expense 4,739 3,885 16,843 15,470
Total noninterest expense 37,026 39,684 145,201 151,173
Income before income taxes 24,938 31,853 124,408 91,549
Provision for income taxes 6,713 8,238 32,679 24,144
Net income $ 18,225 $ 23,615 $ 91,729 $ 67,405
Basic earnings per share $ 0.40 $ 0.53 $ 2.05 $ 1.51
Diluted earnings per share 0.40 0.52 2.02 1.49
Dividends declared per share 0.05 0.05 0.20 0.20

Ending common shares outstanding 44,697,917 44,582,311 44,697,917 44,582,311
Weighted-average basic shares outstanding 44,694,200 44,578,830 44,663,722 44,526,655
Weighted-average diluted shares outstanding 45,409,232 45,228,212 45,395,010 45,213,088

​ 14

Old Second Bancorp, Inc. and Subsidiaries

Quarterly Consolidated Average Balance

(In thousands, unaudited)

2022 2023
Assets **** 1st Qtr **** 2nd Qtr **** 3rd Qtr **** 4th Qtr **** 1st Qtr 2nd Qtr **** 3rd Qtr 4th Qtr
Cash and due from banks $ 42,972 $ 53,371 $ 56,265 $ 56,531 $ 55,140 $ 56,191 $ 57,279 $ 57,723
Interest earning deposits with financial institutions 635,302 426,820 131,260 50,377 49,310 50,309 49,737 47,865
Cash and cash equivalents 678,274 480,191 187,525 106,908 104,450 106,500 107,016 105,588
Securities available-for-sale, at fair value 1,807,875 1,792,099 1,703,348 1,576,004 1,503,619 1,404,664 1,295,211 1,192,021
FHLBC and FRBC stock 16,066 20,994 19,565 19,534 24,905 34,029 35,954 34,371
Loans held-for-sale 6,707 3,050 2,020 1,224 813 1,150 1,641 1,709
Loans 3,397,827 3,505,806 3,751,097 3,877,004 3,931,679 4,039,052 4,009,218 4,014,771
Less: allowance for credit losses on loans 44,341 44,354 45,449 48,778 49,398 53,480 54,581 50,023
Net loans 3,353,486 3,461,452 3,705,648 3,828,226 3,882,281 3,985,572 3,954,637 3,964,748
Premises and equipment, net 86,502 73,876 71,947 72,220 72,649 72,903 74,707 78,472
Other real estate owned 2,399 1,850 1,578 1,561 1,508 1,132 472 2,004
Mortgage servicing rights, at fair value 8,218 10,525 10,639 11,322 11,127 10,741 11,066 11,317
Goodwill 86,332 86,332 86,333 86,477 86,477 86,477 86,477 86,477
Core deposit intangible 15,977 15,286 14,561 13,950 13,327 12,709 12,119 11,502
Bank-owned life insurance ("BOLI") 105,396 105,463 105,448 105,754 106,655 107,028 107,786 108,616
Deferred tax assets, net 10,689 27,154 31,738 50,533 42,237 37,774 39,072 42,754
Other assets 55,474 53,823 55,606 53,909 48,599 50,812 52,360 55,155
Total other assets 370,987 374,309 377,850 395,726 382,579 379,576 384,059 396,297
Total assets $ 6,233,395 $ 6,132,095 $ 5,995,956 $ 5,927,622 $ 5,898,647 $ 5,911,491 $ 5,778,518 $ 5,694,734
Liabilities
Deposits:
Noninterest bearing demand $ 2,093,293 $ 2,119,667 $ 2,092,301 $ 2,083,503 $ 2,002,801 $ 1,920,448 $ 1,867,201 $ 1,838,325
Interest bearing:
Savings, NOW, and money market 2,899,497 2,872,622 2,765,281 2,680,767 2,560,893 2,437,096 2,324,613 2,241,937
Time 495,452 469,009 459,925 450,111 434,655 436,524 466,250 497,472
Total deposits 5,488,242 5,461,298 5,317,507 5,214,381 4,998,349 4,794,068 4,658,064 4,577,734
Securities sold under repurchase agreements 39,204 34,496 33,733 33,275 31,080 25,575 24,945 28,526
Other short-term borrowings - - 5,435 44,293 200,833 402,527 427,174 390,652
Junior subordinated debentures 25,773 25,773 25,773 25,773 25,773 25,773 25,773 25,773
Subordinated debentures 59,222 59,244 59,265 59,286 59,308 59,329 59,350 59,372
Senior notes 44,494 44,520 44,546 44,572 44,599 44,134 - -
Notes payable and other borrowings 19,009 13,103 10,989 9,978 5,400 - - -
Other liabilities 60,819 32,636 34,949 51,753 51,279 48,434 53,164 63,971
Total liabilities 5,736,763 5,671,070 5,532,197 5,483,311 5,416,621 5,399,840 5,248,470 5,146,028
Stockholders' equity
Common stock 44,705 44,705 44,705 44,705 44,705 44,705 44,705 44,705
Additional paid-in capital 202,828 202,544 201,570 201,973 201,397 200,590 201,344 201,824
Retained earnings 258,073 267,912 284,302 301,753 324,785 346,042 368,732 389,776
Accumulated other comprehensive loss (3,074) (49,151) (63,216) (100,817) (86,736) (78,940) (84,167) (87,358)
Treasury stock (5,900) (4,985) (3,602) (3,303) (2,125) (746) (566) (241)
Total stockholders' equity 496,632 461,025 463,759 444,311 482,026 511,651 530,048 548,706
Total liabilities and stockholders' equity $ 6,233,395 $ 6,132,095 $ 5,995,956 $ 5,927,622 $ 5,898,647 $ 5,911,491 $ 5,778,518 $ 5,694,734
Total Earning Assets $ 5,863,777 $ 5,748,769 $ 5,607,290 $ 5,524,143 $ 5,510,326 $ 5,529,204 $ 5,391,761 $ 5,290,737
Total Interest Bearing Liabilities 3,582,651 3,518,767 3,404,947 3,348,055 3,362,541 3,430,958 3,328,105 3,243,732

​ 15

Old Second Bancorp, Inc. and Subsidiaries

Quarterly Consolidated Statements of Income

(In thousands, except per share data, unaudited)

2022 2023
1st Qtr **** 2nd Qtr **** 3rd Qtr **** 4th Qtr **** 1st Qtr 2nd Qtr **** 3rd Qtr 4th Qtr
Interest and Dividend Income
Loans, including fees $ 36,366 $ 38,229 $ 46,614 $ 55,170 $ 57,210 $ 61,561 $ 62,665 $ 62,751
Loans held-for-sale 57 32 22 19 12 19 29 31
Securities:
Taxable 5,169 6,786 9,116 10,495 10,735 9,930 8,946 8,329
Tax exempt 1,317 1,297 1,332 1,341 1,337 1,337 1,333 1,322
Dividends from FHLB and FRBC stock 153 263 261 259 280 396 597 647
Interest bearing deposits with financial institutions 269 782 663 461 585 643 659 616
Total interest and dividend income 43,331 47,389 58,008 67,745 70,159 73,886 74,229 73,696
Interest Expense
Savings, NOW, and money market deposits 397 347 380 776 1,149 1,742 2,558 3,312
Time deposits 277 265 335 571 664 1,156 1,982 2,834
Securities sold under repurchase agreements 11 9 10 10 9 7 27 50
Other short-term borrowings - - 44 436 2,345 5,160 5,840 5,429
Junior subordinated debentures 280 284 285 287 279 281 245 290
Subordinated debentures 546 547 546 546 546 546 547 546
Senior notes 485 578 728 891 994 1,414 - -
Notes payable and other borrowings 103 95 111 137 87 - - -
Total interest expense 2,099 2,125 2,439 3,654 6,073 10,306 11,199 12,461
Net interest and dividend income 41,232 45,264 55,569 64,091 64,086 63,580 63,030 61,235
Provision for credit losses - 550 4,500 1,500 3,501 2,000 3,000 8,000
Net interest and dividend income after provision for credit losses 41,232 44,714 51,069 62,591 60,585 61,580 60,030 53,235
Noninterest Income
Wealth management 2,698 2,506 2,280 2,403 2,270 2,458 2,475 2,600
Service charges on deposits 2,074 2,328 2,661 2,499 2,424 2,362 2,504 2,527
Secondary mortgage fees 139 50 81 62 59 76 66 58
Mortgage servicing rights mark to market gain (loss) 2,978 82 548 (431) (525) 96 281 (1,277)
Mortgage servicing income 519 579 514 518 516 499 519 495
Net gain (loss) on sales of mortgage loans 1,495 (262) 449 340 306 398 407 366
Securities losses, net - (33) (1) (910) (1,675) (1,547) (924) (2)
Change in cash surrender value of BOLI 124 72 146 376 242 418 919 541
Card related income 2,574 2,965 2,653 2,795 2,244 2,690 2,606 2,511
Other income 862 924 2,165 1,294 1,489 773 1,024 910
Total noninterest income 13,463 9,211 11,496 8,946 7,350 8,223 9,877 8,729
Noninterest Expense
Salaries and employee benefits 19,967 21,332 21,011 24,263 22,248 21,798 23,115 21,405
Occupancy, furniture and equipment 3,699 3,046 4,119 4,128 3,475 3,639 3,506 3,817
Computer and data processing 6,268 4,006 2,543 2,978 1,774 1,290 1,922 2,291
FDIC insurance 410 702 659 630 584 794 744 583
Net teller & bill paying 1,907 834 504 485 502 515 534 564
General bank insurance 315 351 257 298 305 306 300 301
Amortization of core deposit intangible 665 659 657 645 624 618 616 603
Advertising expense 182 194 83 130 142 103 93 383
Card related expense 534 1,057 1,453 1,304 1,216 1,222 1,347 1,338
Legal fees 257 179 212 225 319 283 97 228
Consulting & management fees 616 523 607 679 790 520 549 556
Other real estate expense, net (12) 87 21 34 306 (98) (27) 218
Other expense 3,444 4,279 3,862 3,885 3,637 3,840 4,627 4,739
Total noninterest expense 38,252 37,249 35,988 39,684 35,922 34,830 37,423 37,026
Income before income taxes 16,443 16,676 26,577 31,853 32,013 34,973 32,484 24,938
Provision for income taxes 4,423 4,429 7,054 8,238 8,406 9,411 8,149 6,713
Net income $ 12,020 $ 12,247 $ 19,523 $ 23,615 $ 23,607 $ 25,562 $ 24,335 $ 18,225
Basic earnings per share (GAAP) $ 0.27 $ 0.28 $ 0.43 $ 0.53 $ 0.53 $ 0.57 $ 0.55 $ 0.40
Diluted earnings per share (GAAP) 0.27 0.27 0.43 0.52 0.52 0.56 0.54 0.40
Dividends paid per share 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05

​ 16

Reconciliation of Non-GAAP Financial Measures

The tables below provide a reconciliation of each non-GAAP financial measure to the most comparable GAAP measure for the periods indicated. Dollar amounts below in thousands:

Quarters Ended
December 31, September 30, December 31,
2023 **** 2023 2022
Net Income
Income before income taxes (GAAP) $ 24,938 $ 32,484 $ 31,853
Pre-tax income adjustments:
Litigation related expenses 1,200 - -
Merger-related costs, net of losses/(gains) on branch sales 19 - 617
Liquidation and deconversion costs on Visa credit card portfolio - 629 -
Adjusted net income before taxes 26,157 33,113 32,470
Taxes on adjusted net income 7,041 8,307 8,398
Adjusted net income (non-GAAP) $ 19,116 $ 24,806 $ 24,072
Basic earnings per share (GAAP) $ 0.40 $ 0.55 $ 0.53
Diluted earnings per share (GAAP) 0.40 0.54 0.52
Adjusted basic earnings per share excluding acquisition-related costs (non-GAAP) 0.43 0.55 0.54
Adjusted diluted earnings per share excluding acquisition-related costs (non-GAAP) 0.42 0.55 0.53

Quarters Ended
December 31, September 30, December 31,
2023 **** 2023 2022
Net Interest Margin
Interest income (GAAP) $ 73,696 $ 74,229 $ 67,745
Taxable-equivalent adjustment:
Loans 11 11 6
Securities 352 354 356
Interest income (TE) 74,059 74,594 68,107
Interest expense (GAAP) 12,461 11,199 3,654
Net interest income (TE) $ 61,598 $ 63,395 $ 64,453
Net interest income (GAAP) $ 61,235 $ 63,030 $ 64,091
Average interest earning assets $ 5,290,737 $ 5,391,761 $ 5,524,143
Net interest margin (TE) 4.62 % 4.66 % 4.63 %
Net interest margin (GAAP) 4.59 % 4.64 % 4.60 %

​ 17

GAAP Non-GAAP
Three Months Ended Three Months Ended
December 31, September 30, December 31, December 31, September 30, December 31,
2023 2023 2022 2023 2023 2022
Efficiency Ratio / Adjusted Efficiency Ratio
Noninterest expense $ 37,026 $ 37,423 $ 39,684 $ 37,026 $ 37,423 $ 39,684
Less amortization of core deposit 603 616 645 603 616 645
Less other real estate (income) expense, net 218 (27) 34 218 (27) 34
Less litigation related expense N/A N/A N/A 1,200
Less acquisition related costs, net of losses/(gains) on branch sales N/A N/A N/A 19 - 617
Less liquidation and deconversion costs on Visa credit card portfolio N/A N/A N/A - 629 -
Noninterest expense less adjustments $ 36,205 $ 36,834 $ 39,005 $ 34,986 $ 36,205 $ 38,388
Net interest income $ 61,235 $ 63,030 $ 64,091 $ 61,235 $ 63,030 $ 64,091
Taxable-equivalent adjustment:
Loans N/A N/A N/A 11 11 6
Securities N/A N/A N/A 352 354 356
Net interest income including adjustments 61,235 63,030 64,091 61,598 63,395 64,453
Noninterest income 8,729 9,877 8,946 8,729 9,877 8,946
Less securities losses (2) (924) (910) (2) (924) (910)
Less MSRs mark to market (losses) gains (1,277) 281 (431) (1,277) 281 (431)
Taxable-equivalent adjustment:
Change in cash surrender value of BOLI N/A N/A N/A 144 245 100
Noninterest income (excluding) / including adjustments 10,008 10,520 10,287 10,152 10,765 10,387
Net interest income including adjustments plus noninterest income (excluding) / including adjustments $ 71,243 $ 73,550 $ 74,378 $ 71,750 $ 74,160 $ 74,840
Efficiency ratio / Adjusted efficiency ratio 50.82 % 50.08 % 52.44 % 48.76 % 48.82 % 51.29 %

N/A - Not applicable.

Quarters Ended
December 31, September 30, December 31,
2023 2023 2022
Return on Average Tangible Common Equity Ratio
Net income (GAAP) $ 18,225 $ 24,335 $ 23,615
Income before income taxes (GAAP) $ 24,938 $ 32,484 $ 31,853
Pre-tax income adjustments:
Amortization of core deposit intangibles 603 616 645
Net income, excluding intangibles amortization, before taxes 25,541 33,100 32,498
Taxes on net income, excluding intangible amortization, before taxes 6,875 8,304 8,405
Net income, excluding intangibles amortization (non-GAAP) $ 18,666 $ 24,796 $ 24,093
Total Average Common Equity $ 548,706 530,048 $ 444,311
Less Average goodwill and intangible assets 97,979 98,596 100,427
Average tangible common equity (non-GAAP) $ 450,727 $ 431,452 $ 343,884
Return on average common equity (GAAP) 13.18 % 18.21 % 21.09 %
Return on average tangible common equity (non-GAAP) 16.43 % 22.80 % 27.80 %

​ 18

Exhibit 99.2

Graphic Old Second Bancorp, Inc. Loan Portfolio Disclosures As of June 30, 2020

Loan Portfolio Composition Loan Portfolio Characteristics Balance Outstanding (000’s) $2,052,336 Total Commitment (000’s) $2,539,355 Average Loan Commitment $352,024 Number of Payment Deferrals /Modifications 449 Payment Modification Rate (% of Total Commitment)* 9.03% Loan Portfolio Characteristics • Lending focused on full relationship, small and middle market businesses • Well diversified by industry with minimal exposure to high risk industries • Repayment analysis based on primary operating cash flow, supported by secondary and tertiary repayment sources • Full global cash flow and sensitivity analysis performed on all relationships over $1 million in exposure • Dedicated Leasing, C&I, CRE, Healthcare and Professional Service lending teams Commercial & Industrial 28% Construction 6% CRE Investor 21% CRE Owner- Occupied Farm Land 13% 1% Residential Investor 3% Residential Owner-Occupied 5% HELOC 10% Leasing 5% Multifamily 8% Loan Type IL 81% CA 2% NY 2% WI 4% MI 2% MA 1% Other States 8% Geography* *Based on primary property collateral if available, otherwise borrower address. *Excludes $133.89 million in PPP loans

Commercial and Industrial (includes Leasing) Commercial and Industrial Portfolio Characteristics Balance Outstanding (000’s) $574,935 Total Commitment (000’s) $838,075 Average Loan Commitment $351,247 Number of Payment Deferrals /Modifications 164 Payment Modification Rate (% of Total Commitment)* 6.16%* Weighted Average Seasoning 3.50 years Commercial and Industrial Portfolio Characteristics • Lending focused on full relationship, small and middle market businesses • Well diversified by industry with limited exposure to Accommodation and Food Services and Entertainment industries • Repayment analysis based on primary operating cash flow, supported by secondary and tertiary repayment sources • Full global cash flow and sensitivity analysis performed on all relationships over $1 million in exposure • Dedicated Leasing, C&I, Healthcare and Professional Service lending teams • Modest exposure to syndicated or leveraged loans DuPage County (IL) 11% Kane County (IL) 26% Kendall County (IL) 2% Cook County (IL) 23% Will County (IL) 7% IL Other 2% CA 2% MA 3% MI 3% NY 6% TX 2% WI 2% Other States 11% Geography* *Based on primary property collateral if available, otherwise borrower address. Accomodation and Food Services 2% Agriculture 3% Health Care 8% Information and Finance 13% Manufacturing 18% Administration and Support 2% Construction 15% Other Services 2% Professional Services 6% Rental and Leasing 7% Retail Trade 4% Transportation and Warehousing 6% Wholesale Trade 13% Industry *Excludes $133.89 million in PPP loans

Graphic CRE Owner-Occupied CRE Owner-Occupied Portfolio Characteristics Balance Outstanding (000’s) $343,982 Total Commitment (000’s) $357,453 Average Loan Commitment $549,928 Number of Payment Deferrals /Modifications 72 Payment Modification Rate (% of Total Commitment) 15.97% Weighted Average Seasoning 6.13 years Commercial and Industrial Portfolio Characteristics • Lending focused on full relationship, small and middle market businesses • Well diversified by industry with limited exposure to the Accommodation and Food Service and Entertainment industries • Repayment analysis based on primary operating cash flow, supported by secondary and tertiary repayment sources • Full global cash flow and sensitivity analysis performed on all relationships over $1 million in exposure • Dedicated C&I, Healthcare and Professional Service lending teams DuPage County (IL) 14% Kane County (IL) 28% Kendall County (IL) 5% Cook County (IL) 32% Will County (IL) 17% IL Other 2% Out of State 2% Geography* *Based on primary property collateral if available, otherwise borrower address. Accomodation and Food Services 3% Agriculture 3% Entertainment 7% Education 3% Health Care 9% Information and Finance 1% Manufacturing 10% Administration and Support 1% Construction 4% Other Services 23% Professional Services 4% Rental and Leasing 9% Retail Trade 18% Transportation and Warehousing 1% Wholesale Trade 3% Industry

CRE Investor (includes Multifamily) CRE Investor Portfolio Characteristics Balance Outstanding (000’s) $723,235 Total Commitment (000’s) $735,069 Average Loan Commitment $1,287,336 Number of Payment Deferrals /Modifications 56 Payment Modification Rate (% of Total Commitment) 11.22% Weighted Average Seasoning 4.41 years CRE Investor Portfolio Characteristics • Lending focused on full relationship and strong sponsorship • Well diversified by property type with limited exposure to high-risk real estate sectors (Hotel, Restaurant, Recreational and “Big Box” Retail) • Repayment analysis based on strong net operating income, supported by secondary and tertiary repayment sources • Full global cash flow and sensitivity analysis performed on all relationships over $1 million in exposure • Secured by seasoned properties with stabilized cash flow • Dedicated CRE and Healthcare lending teams Hotel 2% Industrial 13% Medical Office 2% Mini Storage 2% Mixed-Use 3% Office 16% Restaurant 2% Retail 15% Senior Housing 14% Multifamily 27% National Drugstore Chain 4% CRE Type DuPage County (IL) 12% Kane County (IL) 8% Cook County (IL) 47% Will County (IL) 7% IL Other 5% WI 8% MI 3% OH 2% CA 2% Other States 6% Geography* *Based on primary property collateral if available, otherwise borrower address.

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