Graphic

(NASDAQ:OSBC)

Exhibit 99.1

Contact:

Bradley S. Adams

For Immediate Release

Chief Financial Officer

July 23, 2025

(630) 906-5484

Old Second Bancorp, Inc. Reports Second Quarter 2025 Net Income of $21.8 Million,

or $0.48 per Diluted Share

AURORA, IL, July 23, 2025 – 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 second quarter of 2025. Our net income was $21.8 million, or $0.48 per diluted share, for the second quarter of 2025, compared to net income of $19.8 million, or $0.43 per diluted share, for the first quarter of 2025, and net income of $21.9 million, or $0.48 per diluted share, for the second quarter of 2024. Adjusted net income, a non-GAAP financial measure that excludes certain nonrecurring items, as applicable, was $22.8 million, or $0.50 per diluted share, for the second quarter of 2025, compared to $20.6 million, or $0.45 per diluted share, for the first quarter of 2025, and $21.2 million, or $0.46 per diluted share, for the second quarter of 2024. The pre-tax adjusting items impacting the second quarter of 2025 included the exclusion of $531,000 of mortgage servicing rights (“MSRs”) mark to market losses, and $810,000 of transaction-related expenses primarily from our merger with Bancorp Financial, Inc. (“Bancorp Financial”) that closed on July 1, 2025. The adjusting items impacting the first quarter of 2025 included the exclusion of $570,000 of MSRs mark to market losses and $454,000 of transaction-related expenses due to the Bancorp Financial merger and the First Merchants (“FRME”) branch purchase, which occurred in December 2024. The adjusting item impacting the second quarter of 2024 included the exclusion of $238,000 of MSRs mark to market losses and an $893,000 death benefit related to BOLI. 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.

Net income increased $2.0 million in the second quarter of 2025 compared to the first quarter of 2025. The increase was primarily due to a $1.7 million increase in interest and dividend income, a $697,000 increase in noninterest income, and a $1.1 million decrease in noninterest expense in the second quarter of 2025, compared to the prior linked quarter. The increases to the current quarter’s net income were partially offset by a $343,000 increase in interest expense and a $1.0 million increase in provision for income taxes. Net income decreased $69,000 in the second quarter of 2025 compared to the second quarter of 2024, primarily due to an increase of $5.5 million in noninterest expense and a $229,000 decrease in noninterest income, partially offset by a $4.5 million increase in net interest and dividend income and  a $1.3 million decrease in provision for credit losses.

Operating Results

Second quarter 2025 net income was $21.8 million, reflecting a $2.0 million increase from the first quarter of 2025, but a decrease of $69,000 from the second quarter of 2024. Adjusted net income, as defined above, was $22.8 million for the second quarter of 2025, an increase of $2.2 million from adjusted net income for the first quarter of 2025, and an increase of $1.6 million from adjusted net income for the second quarter of 2024.
Net interest and dividend income was $64.2 million for the second quarter of 2025, reflecting an increase of $1.3 million, or 2.1%, from the first quarter of 2025, and an increase of $4.5 million, or 7.6%, from the second quarter of 2024.
We recorded a net provision for credit losses of $2.5 million in the second quarter of 2025 compared to a net provision for credit losses of $2.4 million in the first quarter of 2025 and net provision for credit losses of $3.8 million in the second quarter of 2024.
Noninterest income was $10.9 million for the second quarter of 2025, an increase of $697,000, or 6.8%, compared to $10.2 million for the first quarter of 2025, and a decrease of $229,000, or 2.1%, compared to $11.1 million for the second quarter of 2024.

1


Noninterest expense was $43.4 million for the second quarter of 2025, a decrease of $1.1 million, or 2.4%, compared to $44.5 million for the first quarter of 2025, and an increase of $5.5 million, or 14.6%, compared to $37.9 million for the second quarter of 2024.
We had a provision for income tax of $7.4 million for the second quarter of 2025, compared to a provision for income tax of $6.4 million for the first quarter of 2025 and a provision for income tax of $7.3 million for the second quarter of 2024. The effective tax rate for each of the periods presented was 25.3%, 24.3%, and 25.0%, respectively.
On July 15, 2025, our Board of Directors declared a cash dividend of $0.06 per share of common stock, payable on August 4, 2025, to stockholders of record as of July 25, 2025.

Financial Highlights

Quarters Ended

(Dollars in thousands)

June 30, 

March 31, 

June 30, 

2025

2025

2024

Balance sheet summary

Total assets

$

5,701,294

$

5,727,686

$

5,662,700

Total securities available-for-sale

1,177,688

1,146,721

1,173,661

Total loans

3,998,667

3,940,232

3,976,595

Total deposits

4,798,439

4,852,791

4,521,728

Total liabilities

4,982,645

5,033,195

5,043,365

Total equity

718,649

694,491

619,335

Total tangible assets

$

5,588,090

$

5,613,460

$

5,566,159

Total tangible equity

605,445

580,265

522,794

Income statement summary

Net interest income

$

64,234

$

62,904

$

59,690

Provision for credit losses

2,500

2,400

3,750

Noninterest income

10,898

10,201

11,127

Noninterest expense

43,419

44,505

37,877

Net income

21,822

19,830

21,891

Effective tax rate

25.30

%

24.31

%

25.01

%

Profitability ratios

Return on average assets (ROAA)

1.53

%

1.42

%

1.57

%

Return on average equity (ROAE)

12.39

11.76

14.55

Net interest margin (tax-equivalent)

4.85

4.88

4.63

Efficiency ratio

55.99

56.46

53.29

Return on average tangible common equity (ROATCE) 1

15.29

14.70

17.66

Tangible common equity to tangible assets (TCE/TA)

10.83

10.34

9.39

Per share data

Diluted earnings per share

$

0.48

$

0.43

$

0.48

Tangible book value per share

13.44

12.88

11.66

Company capital ratios 2

Common equity tier 1 capital ratio

13.77

%

13.47

%

12.41

%

Tier 1 risk-based capital ratio

14.31

14.01

12.94

Total risk-based capital ratio

16.55

16.24

15.12

Tier 1 leverage ratio

11.83

11.58

10.96

Bank capital ratios 2, 3

Common equity tier 1 capital ratio

14.02

%

13.64

%

13.50

%

Tier 1 risk-based capital ratio

14.02

13.64

13.50

Total risk-based capital ratio

14.99

14.58

14.42

Tier 1 leverage ratio

11.59

11.27

11.43

1 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.

2 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.

3 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.

2


Chairman, President and Chief Executive Officer Jim Eccher said “Old Second reported another quarter of strong results in the second quarter of 2025, led by exceptional margin performance and disciplined operating efficiency. Second quarter return on average assets and return on average tangible common equity were 1.53% and 15.29%, respectively, the tax equivalent net interest margin was strong at 4.85% and the efficiency ratio was a very healthy 55.99%.  Tangible book value per share continues to compound at a double-digit rate and the balance sheet remains strong and liquid with a common equity tier 1 ratio of 13.77%, a loan to deposit ratio of 83% and cash and marketable securities in excess of 23% of total assets.  We are extremely proud of our financial performance so far this year, and believe we are both well positioned to capitalize upon future growth opportunities and weather any economic challenges that may present themselves.”  

“On July 1, 2025, subsequent to the end of the quarter, we acquired Bancorp Financial, Inc., a $1.4 billion bank holding company headquartered in Oak Brook, Illinois and its subsidiary bank, Evergreen Bank Group. We believe the transaction will add meaningful consumer lending capabilities and enhance the flexibility and profitability of Old Second’s balance sheet.  The additional scale created by the merger and the new product and service offerings offer a tremendous opportunity to deliver great outcomes for our stockholders, customers, employees and communities. We are extremely excited to welcome Evergreen Bank customers and employees to the Old Second team.”

Asset Quality & Earning Assets

Nonperforming loans, comprised of nonaccrual loans plus loans past due 90 days or more and still accruing, totaled $32.2 million at June 30, 2025, $34.8 million at March 31, 2025, and $46.9 million at June 30, 2024. Nonperforming loans, as a percent of total loans, was 0.8% at June 30, 2025, 0.9% at March 31, 2025, and 1.2% at June 30, 2024. The $2.5 million decrease in the second quarter of 2025 for nonperforming loans is driven by nonaccrual loans outflows of $6.6 million primarily due to one relationship that was transferred to OREO, partially offset by inflows of $5.1 million, primarily driven by one commercial real estate – owner occupied relationship. Nonaccrual loan outflows consist of $799,000 of loans paid off, a $5.0 million loan transferred to OREO, $665,000 of partial principal reductions from payments and partial charge-offs on loans, $70,000 of loans fully charged off, and $59,000 of loans upgraded. The net $1.5 million decrease to nonaccrual loans in the second quarter of 2025, compared to the prior linked quarter, was also accompanied by a $1.1 million decrease to loans past due 90 days or more and still accruing.
Total loans were $4.00 billion at June 30, 2025, reflecting an increase of $58.4 million compared to March 31, 2025, and an increase of $22.1 million compared to June 30, 2024. The increase from the prior quarter end as well as year over year was largely driven by the growth in leases, commercial real estate-investor and construction portfolios. Average loans (including loans held-for-sale) for the second quarter of 2025 totaled $3.96 billion, reflecting an increase of $1.6 million from the first quarter of 2025, and an increase of $2.1 million from the second quarter of 2024.  
Available-for-sale securities totaled $1.18 billion at June 30, 2025, compared to $1.15 billion at March 31, 2025 and $1.17 billion at June 30, 2024. The unrealized mark to market loss on securities totaled $54.7 million as of June 30, 2025, compared to $59.7 million as of March 31, 2025, and $82.6 million as of June 30, 2024, due to market interest rate fluctuations as well as changes year over year in the composition of the securities portfolio. During the quarter ended June 30, 2025, we had security purchases of $79.6 million, and security maturities, calls and paydowns of $53.2 million, compared to security purchases of $82.9 million and security maturities, calls and paydowns of $106.3 million during the quarter ended March 31, 2025. During the quarter ended June 30, 2024, we had security purchases of $142.2 million and $139.0 million of maturities, calls, and paydowns. We may continue to buy and sell strategically identified securities as opportunities arise.

3


Net Interest Income

Analysis of Average Balances,

Tax Equivalent Income / Expense and Rates

(Dollars in thousands - unaudited)

Quarters Ended

June 30, 2025

March 31, 2025

June 30, 2024

Average

Income /

Rate

Average

Income /

Rate

Average

Income /

Rate

Balance

Expense

%

Balance

Expense

%

Balance

Expense

%

Assets

Interest earning deposits with financial institutions

$

166,366

$

1,784

4.30

$

97,645

$

988

4.10

$

50,740

$

625

4.95

Securities:

Taxable

1,040,472

9,959

3.84

1,026,233

9,227

3.65

1,016,187

8,552

3.38

Non-taxable (TE)1

149,651

1,556

4.17

155,024

1,595

4.17

163,243

1,636

4.03

Total securities (TE)1

1,190,123

11,515

3.88

1,181,257

10,822

3.72

1,179,430

10,188

3.47

FHLBC and FRBC Stock

19,200

273

5.70

19,441

473

9.87

27,574

584

8.52

Loans and loans held-for-sale1, 2

3,960,650

62,002

6.28

3,959,073

61,626

6.31

3,958,504

62,180

6.32

Total interest earning assets

5,336,339

75,574

5.68

5,257,416

73,909

5.70

5,216,248

73,577

5.67

Cash and due from banks

47,875

-

-

52,550

-

-

54,286

-

-

Allowance for credit losses on loans

(41,544)

-

-

(43,543)

-

-

(43,468)

-

-

Other noninterest earning assets

394,036

-

-

407,894

-

-

388,392

-

-

Total assets

$

5,736,706

$

5,674,317

$

5,615,458

Liabilities and Stockholders' Equity

NOW accounts

$

653,334

$

681

0.42

$

628,336

$

629

0.41

$

570,523

$

639

0.45

Money market accounts

832,777

3,920

1.89

801,178

3,393

1.72

691,214

2,915

1.70

Savings accounts

938,836

1,005

0.43

940,894

891

0.38

934,161

763

0.33

Time deposits

695,946

4,508

2.60

725,314

4,829

2.70

610,705

4,961

3.27

Interest bearing deposits

3,120,893

10,114

1.30

3,095,722

9,742

1.28

2,806,603

9,278

1.33

Securities sold under repurchase agreements

35,419

56

0.63

34,529

68

0.80

37,430

83

0.89

Other short-term borrowings

-

-

-

1,444

17

4.77

242,912

3,338

5.53

Junior subordinated debentures

25,773

288

4.48

25,773

288

4.53

25,773

288

4.49

Subordinated debentures

59,500

546

3.68

59,478

546

3.72

59,414

546

3.70

Total interest bearing liabilities

3,241,585

11,004

1.36

3,216,946

10,661

1.34

3,172,132

13,533

1.72

Noninterest bearing deposits

1,729,287

-

-

1,703,382

-

-

1,769,543

-

-

Other liabilities

59,580

-

-

70,411

-

-

68,530

-

-

Stockholders' equity

706,254

-

-

683,578

-

-

605,253

-

-

Total liabilities and stockholders' equity

$

5,736,706

$

5,674,317

$

5,615,458

Net interest income (GAAP)

$

64,234

$

62,904

$

59,690

Net interest margin (GAAP)

4.83

4.85

4.60

Net interest income (TE)1

$

64,570

$

63,248

$

60,044

Net interest margin (TE)1

4.85

4.88

4.63

Interest bearing liabilities to earning assets

60.75

%

61.19

%

60.81

%

1 Tax equivalent (TE) basis is calculated using a marginal tax rate of 21% in 2025 and 2024. 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.

2 Interest income from loans is shown on a TE basis, which is a non-GAAP financial measure as discussed in the table on page 17, and includes loan fee income of $366,000 for the second quarter of 2025, loan fee income of $545,000 for the first quarter of 2025, and loan fee expense of $936,000 for the second quarter of 2024. Nonaccrual loans are included in the above stated average balances.

The decreased yield of two basis points on interest earning assets compared to the linked period was primarily driven by a lower yield on FHLBC and FRBC Stock due to less capital stock dividends received during the second quarter of 2025 and repricing within the loan portfolio. 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.

4


The year over year increase of one basis point on interest earning assets was primarily driven by planned turnover in our securities portfolio with many older and lower yielding securities maturing and being replaced with higher yielding investments while maintaining the shorter duration portfolio composition. Average balances of securities available for sale increased $10.7 million in the second quarter of 2025 compared to the prior year like quarter, with a corresponding increase to the tax equivalent yield on the securities available for sale portfolio of 41 basis points year over year primarily due to variable security rate resets. Average balances of loans and loans held for sale increased $2.1 million in the second quarter of 2025 compared to the prior year like quarter, while the tax equivalent yield on loans and loans held for sale decreased four basis points.

Average balances of interest bearing deposit accounts have increased steadily since the first quarter of 2025 through the second quarter of 2025, from $3.10 billion to $3.12 billion, as NOW and money market account average balances increased, while savings and time deposit accounts decreased. We have continued to control the cost of funds over the periods reflected by monitoring market activity as well as allowing previous exception-priced deposits to runoff naturally, which resulted in only a two basis point increase in the cost of interest bearing deposits, from 128 basis points for the quarter ended March 31, 2025, to 130 basis points for the quarter ended June 30, 2025. A 17 basis point increase in money market accounts for the quarter ended June 30, 2025 drove a significant portion of the increase from the prior linked quarter, with a 10 basis point decrease in the cost of time deposits partially offsetting the overall change in the cost of deposits. The cost of interest bearing deposits decreased three basis points for the quarter ended June 30, 2025 from 133 basis points for the quarter ended June 30, 2024. A 67 basis point decrease in the cost of time deposit accounts drove a significant portion of the overall decrease from the prior year like quarter.

Borrowing costs decreased slightly in the second quarter of 2025, compared to the first quarter of 2025, primarily due to the $1.4 million decrease in average other short-term borrowings stemming from a decrease in average daily FHLB advances over the prior linked quarter as the remainder of this borrowing was already paid down in the first quarter of 2025. The decrease of $242.9 million year over year of average FHLB advances was based on daily liquidity needs and was the primary driver of the $3.3 million decrease to interest expense on other short-term borrowings. Subordinated and junior subordinated debt interest expense were essentially flat over each of the periods presented.

Our net interest margin, for both GAAP and TE presentations, showed nominal declines over the prior linked quarter periods, but steady growth over the prior year like quarter presented above. Our net interest margin (GAAP) decreased two basis points to 4.83% for the second quarter of 2025, compared to 4.85% for the first quarter of 2025, but increased 23 basis points compared to 4.60% for the second quarter of 2024. Our net interest margin (TE) decreased three basis points to 4.85% for the second quarter of 2025, compared to 4.88% for the first quarter of 2025, but increased 22 basis points compared to 4.63% for the second quarter of 2024. The decrease in net interest margin for the second quarter of 2025, compared to the prior linked quarter, was driven by market interest rates and one more day in the period with larger interest earning asset balances. The net interest margin increased in the second quarter of 2025, compared to the prior year like quarter, primarily due to higher security yields as well as the decrease in average other short-term borrowings and the corresponding reduction in interest expense. 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.

5


Noninterest Income

June 30, 2025

Noninterest Income

Three Months Ended

Percent Change From

(Dollars in thousands)

June 30, 

March 31, 

June 30, 

March 31, 

June 30, 

    

2025

    

2025

    

2024

    

2025

    

2024

 

Wealth management

$

3,103

$

3,089

$

2,779

0.5

11.7

Service charges on deposits

2,788

2,719

2,508

2.5

11.2

Residential mortgage banking revenue

Secondary mortgage fees

84

73

65

15.1

29.2

MSRs mark to market loss

(531)

(570)

(238)

6.8

(123.1)

Mortgage servicing income

472

480

513

(1.7)

(8.0)

Net gain on sales of mortgage loans

550

464

468

18.5

17.5

Total residential mortgage banking revenue

575

447

808

28.6

(28.8)

Change in cash surrender value of BOLI

690

498

820

38.6

(15.9)

Death benefit realized on BOLI

-

-

893

-

(100.0)

Card related income

2,716

2,412

2,577

12.6

5.4

Other income

1,026

1,036

742

(1.0)

38.3

Total noninterest income

$

10,898

$

10,201

$

11,127

6.8

(2.1)

Noninterest income increased $697,000, or 6.8%, in the second quarter of 2025, compared to the first quarter of 2025, and decreased $229,000, or 2.1%, compared to the second quarter of 2024. The increase from the first quarter of 2025 was primarily driven by a $304,000 increase in card related income and a $192,000 increase in the cash surrender value of BOLI due to changes in market interest rates.

The decrease in noninterest income of $229,000 in the second quarter of 2025, compared to the second quarter of 2024, is primarily due to no death benefits realized on BOLI in 2025, compared to an $893,000 death benefit recorded in the second quarter of 2024. Also contributing to the reduction in noninterest income during the quarter was a $233,000 decrease in residential mortgage banking revenue mainly due to a $293,000 decrease in MSRs mark to market valuations. Partially offsetting the decrease in noninterest income from the prior year like quarter was a $324,000 increase in wealth management income primarily due to growth in advisory fees and estate fees, a $280,000 increase in service charges on deposits, and a $284,000 increase in other income due to growth in commercial swap fee income, as well as a real estate tax refund related to a prior year tax assessment received in the second quarter of 2025 from an OREO property.

6


Noninterest Expense

June 30, 2025

Noninterest Expense

Three Months Ended

Percent Change From

(Dollars in thousands)

June 30, 

March 31, 

June 30, 

March 31, 

June 30, 

    

2025

    

2025

    

2024

    

2025

    

2024

 

Salaries

$

19,119

$

18,804

$

17,997

1.7

6.2

Officers' incentive

2,921

2,799

1,482

4.4

97.1

Benefits and other

4,910

5,390

3,945

(8.9)

24.5

Total salaries and employee benefits

26,950

26,993

23,424

(0.2)

15.1

Occupancy, furniture and equipment expense

4,477

4,548

3,899

(1.6)

14.8

Computer and data processing

2,692

2,348

2,184

14.7

23.3

FDIC insurance

642

628

616

2.2

4.2

Net teller & bill paying

670

658

578

1.8

15.9

General bank insurance

328

330

312

(0.6)

5.1

Amortization of core deposit intangible asset

1,022

1,037

574

(1.4)

78.0

Advertising expense

320

167

472

91.6

(32.2)

Card related expense

1,489

1,380

1,323

7.9

12.5

Legal fees

388

472

238

(17.8)

63.0

Consulting & management fees

527

426

797

23.7

(33.9)

Other real estate owned expense, net

35

1,873

(87)

(98.1)

N/M

Other expense

3,879

3,645

3,547

6.4

9.4

Total noninterest expense

$

43,419

$

44,505

$

37,877

(2.4)

14.6

Efficiency ratio (GAAP)1

55.99

%

56.46

%

53.29

%

Adjusted efficiency ratio (non-GAAP)2

54.54

%

55.48

%

52.68

%

N/M - Not meaningful.

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, death benefit realized on BOLI, as applicable, 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, and acquisition expenses, net of gain or loss on branch sales, divided by the sum of net interest income on a fully TE basis, total noninterest income less net gains or losses on securities, death benefit realized on BOLI, as applicable, mark to market gains or losses on MSRs, 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 second quarter of 2025 decreased $1.1 million, or 2.4%, compared to the first quarter of 2025, and increased $5.5 million, or 14.6%, compared to the second quarter of 2024. The decrease in the second quarter of 2025, compared to the first quarter of 2025, was attributable to a $1.8 million decrease in other real estate owned (“OREO”) expense, net, as the second quarter of 2025 reflects a $76,000 gain on the sale of OREO compared to a $236,000 net loss on the sale of OREO properties in the first quarter of 2025, as well as a $297,000 decrease in OREO valuation expenses and a $1.2 million decrease in other OREO expenses due to lower operating costs driven by the sale of a large OREO property in the first quarter of 2025. Partially offsetting the decrease in noninterest expense over the prior linked quarter was a $344,000 increase in computer and data processing due to Bancorp Financial acquisition-related costs, a $153,000 increase in advertising expenses mainly due to advertising and art production costs for a brand awareness campaign,  and a $234,000 increase in other expenses due to filing and printing fees for the annual proxy and for SEC filings related to the Bancorp Financial merger.

The year over year increase in noninterest expense is primarily attributable to a $3.5 million increase in salaries and employee benefits, primarily due to increases in annual base salary rates, officers’ incentives, and restricted stock expense in the second quarter of 2025. Also contributing to the increase was a $578,000 increase in occupancy, furniture and equipment, a $508,000 increase in computer and data processing expenses, a $448,000 increase in core deposit intangible, a $150,000 increase in legal fees, and a $332,000 increase in other expense primarily due to the effect of the FRME branches purchased in December 2024 as well as acquisition-related costs associated with our merger with Bancorp Financial. Partially offsetting the year over year increase was a $152,000 decrease in advertising expense and a $270,000 decrease in consulting & management fees, as the prior year included consulting costs for a compliance item.

7


Earning Assets

June 30, 2025

Loans

As of

Percent Change From

(Dollars in thousands)

June 30, 

March 31, 

June 30, 

March 31, 

June 30, 

    

2025

    

2025

    

2024

    

2025

    

2024

 

Commercial

$

718,927

$

732,874

$

809,443

(1.9)

(11.2)

Leases

524,513

505,455

452,957

3.8

15.8

Commercial real estate – investor

1,118,782

1,105,440

1,014,345

1.2

10.3

Commercial real estate – owner occupied

652,449

669,964

745,938

(2.6)

(12.5)

Construction

251,692

205,839

185,634

22.3

35.6

Residential real estate – investor

50,976

50,103

50,371

1.7

1.2

Residential real estate – owner occupied

220,672

210,239

218,974

5.0

0.8

Multifamily

333,787

341,253

388,743

(2.2)

(14.1)

HELOC

111,265

104,575

99,037

6.4

12.3

Other1

15,604

14,490

11,153

7.7

39.9

Total loans

$

3,998,667

$

3,940,232

$

3,976,595

1.5

0.6

1 Other class includes consumer loans and overdrafts.

Total loans increased by $58.4 million at June 30, 2025, compared to March 31, 2025, and increased $22.1 million for the year over year period. The increase in total loans in the second quarter of 2025 compared to the prior linked quarter was due to increased originations, net of paydowns, over the second quarter, primarily in leases for $19.1 million, commercial real estate – investor for $13.3 million, and construction loans for $45.9 million. The increases are partially offset by decreases in commercial for $13.9 million, commercial real estate – owner occupied for $17.5 million, and multifamily for $7.5 million. The year over year growth in loans is primarily due to originations, net of paydowns, in leases for $71.6 million, commercial real estate – investor of $104.4 million, and construction for $66.1 million, partially offset by decreases, net of originations, in commercial for $90.5 million, commercial real estate – owner occupied for $93.5 million, and multifamily for $55.0 million. Increases were noted in the leases segment in the second quarter of 2025 compared to the prior linked quarter and compared to the prior year like period primarily due to growth within the equipment finance product over the past year. Construction equipment continues to be the largest part of our lease portfolio, followed by vocational equipment (mounted equipment on a truck) such as: dump trucks, ready mix trucks, and bucket trucks. The largest increase in the last year is in our special vehicle vertical which includes tow trucks, school buses, motor coaches, and livery equipment. 

June 30, 2025

Securities

As of

Percent Change From

(Dollars in thousands)

June 30, 

March 31, 

June 30, 

March 31, 

June 30, 

    

2025

    

2025

    

2024

    

2025

    

2024

Securities available-for-sale, at fair value

U.S. Treasury

$

190,446

$

160,191

$

191,274

18.9

(0.4)

U.S. government agencies

38,141

38,047

37,298

0.2

2.3

U.S. government agency mortgage-backed

96,083

98,929

96,872

(2.9)

(0.8)

States and political subdivisions

208,814

209,117

220,265

(0.1)

(5.2)

Collateralized mortgage obligations

395,014

390,891

386,055

1.1

2.3

Asset-backed securities

48,119

49,701

64,877

(3.2)

(25.8)

Collateralized loan obligations

201,071

199,845

177,020

0.6

13.6

Total securities available-for-sale

$

1,177,688

$

1,146,721

$

1,173,661

2.7

0.3

Our securities available-for-sale portfolio totaled $1.18 billion as of June 30, 2025, reflecting an increase of $31.0 million from March 31, 2025, and an increase of $4.0 million since June 30, 2024. The portfolio’s increase in the second quarter of 2025, compared to the prior quarter-end, was due to $79.6 million in purchases and a $5.0 million reduction in unrealized losses, partially offset by $53.2 million in maturities, calls, and paydowns. Net unrealized losses at June 30, 2025 were $54.7 million, compared to $59.7 million at March 31, 2025 and $82.6 million at June 30, 2024. 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 matured securities being replaced with higher yielding short duration investments. 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

June 30, 2025

Nonperforming assets

As of

Percent Change From

(Dollars in thousands)

June 30, 

March 31, 

June 30, 

March 31, 

June 30, 

  

2025

  

2025

  

2024

  

2025

2024

Nonaccrual loans

$

31,902

$

33,394

$

41,957

(4.5)

(24.0)

Loans past due 90 days or more and still accruing interest

 

345

 

1,397

 

4,909

(75.3)

(93.0)

Total nonperforming loans

 

32,247

 

34,791

 

46,866

(7.3)

(31.2)

Other real estate owned

 

6,486

 

2,878

 

6,920

125.4

(6.3)

Repossessed Assets (1)

 

234

 

484

 

-

(51.7)

N/M

Total nonperforming assets

$

38,967

$

38,153

$

53,786

2.1

(27.6)

30-89 days past due loans and still accruing interest

$

14,652

$

21,951

$

16,728

Nonaccrual loans to total loans

0.8

%

0.8

%

1.1

%

Nonperforming loans to total loans

0.8

%

0.9

%

1.2

%

Nonperforming assets to total loans plus OREO and repossessed assets

1.0

%

1.0

%

1.4

%

Purchased credit-deteriorated loans to total loans

0.2

%

0.3

%

0.8

%

Allowance for credit losses

$

42,990

$

41,551

$

42,269

Allowance for credit losses to total loans

1.1

%

1.1

%

1.1

%

Allowance for credit losses to nonaccrual loans

134.8

%

124.4

%

100.7

%

N/M - Not meaningful.

1 Repossessed assets are reported in other assets.

Nonperforming loans consist of nonaccrual loans and loans 90 days or more past due and still accruing interest. Purchased credit-deteriorated (“PCD”) loans acquired in our acquisitions of West Suburban and ABC Bank totaled $9.2 million, net of purchase accounting adjustments, at June 30, 2025. No PCD loans were acquired with our FRME branch acquisition. PCD loans that meet the definition of nonperforming loans are included in our nonperforming disclosures.

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.

June 30, 2025

Classified loans

As of

Percent Change From

(Dollars in thousands)

June 30, 

March 31, 

June 30, 

March 31, 

June 30, 

    

2025

    

2025

    

2024

    

2025

    

2024

Commercial

$

23,354

$

20,807

$

19,142

12.2

22.0

Leases

1,346

848

284

58.7

373.9

Commercial real estate – investor

14,752

14,299

36,939

3.2

(60.1)

Commercial real estate – owner occupied

51,335

26,818

48,387

91.4

6.1

Construction

1,624

18,201

5,740

(91.1)

(71.7)

Residential real estate – investor

1,201

1,283

1,343

(6.4)

(10.6)

Residential real estate – owner occupied

1,707

1,759

2,734

(3.0)

(37.6)

Multifamily

1,099

332

6,810

231.0

(83.9)

HELOC

1,180

686

1,025

72.0

15.1

Other1

22

10

1

120.0

 N/M

Total classified loans

$

97,620

$

85,043

$

122,405

14.8

(20.2)

N/M - Not meaningful.

1 Other class includes consumer loans and overdrafts.

9


Classified loans as of June 30, 2025 increased by $12.6 million from March 31, 2025, and decreased by $24.8 million from June 30, 2024. The net increase from the first quarter of 2025 was primarily driven by inflows of $35.4 million, mostly driven by one large commercial real estate – owner occupied downgrade. The increase of classified loans in the second quarter of 2025 were offset by $22.8 million of outflows, which consist of $10.1 million of paid off loans, $6.2 million of loans upgraded, $5.0 million transferred into OREO, $1.5 million of principal reductions from payments and partial charge-offs, and $70,000 of full loan charge-offs. Remediation work continues on these credits, with the goal of cash flow improvements with increased tenancy.

Allowance for Credit Losses on Loans and Unfunded Commitments

At June 30, 2025, our allowance for credit losses (“ACL”) on loans totaled $43.0 million, and our ACL on unfunded commitments, included in other liabilities, totaled $2.3 million. In the second quarter of 2025, we recorded provision expense of $2.5 million based on historical loss rate updates, our assessment of nonperforming loan metrics and trends, as well as estimated future credit losses. The second quarter of 2025 provision expense consisted of a $2.2 million provision for credit losses on loans, and a $277,000 provision for credit losses on unfunded commitments. The increase in ACL on unfunded commitments was primarily due to an adjustment to 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 $785,000 in the second quarter of 2025, primarily within the commercial portfolio. The first quarter of 2025 provision expense of $2.4 million consisted of a $2.3 million provision for credit losses on loans, and $115,000 provision for credit losses on unfunded commitments. We recorded net charge-offs of $4.4 million in the first quarter of 2025. In the second quarter of 2024, we recorded a provision expense of $3.8 million, which consisted of a $3.9 million provision for credit losses on loans and a $199,000 reversal of provision for credit losses on unfunded commitments. We recorded net charge-offs of $5.8 million in the second quarter of 2024. Our ACL on loans to total loans was 1.1% as of June 30, 2025, March 31, 2025, and June 30, 2024.

The ACL on unfunded commitments totaled $2.3 million as of June 30, 2025, $2.0 million as of March 31, 2025, and $2.5 million as of June 30, 2024.

Net Charge-off Summary

Loan charge–offs, net of recoveries

Quarters Ended

(Dollars in thousands)

June 30, 

% of

March 31, 

% of

June 30, 

% of

2025

Total 2

2025

Total 2

2024

Total 2

Commercial

$

1,093

139.2

$

3,414

78.4

$

(19)

(0.3)

Leases

(3)

(0.4)

93

2.1

81

1.4

Commercial real estate – Investor

(14)

(1.8)

(14)

(0.3)

4,560

78.7

Commercial real estate – Owner occupied

(1)

(0.1)

39

0.9

1,162

20.1

Construction

(337)

(42.9)

821

18.9

-

-

Residential real estate – Investor

(2)

(0.3)

(2)

-

(3)

(0.1)

Residential real estate – Owner occupied

(8)

(1.0)

(30)

(0.7)

(9)

(0.2)

HELOC

(10)

(1.3)

(12)

(0.3)

(15)

(0.3)

Other 1

67

8.6

44

1.0

37

0.7

Net charge–offs / (recoveries)

$

785

100.0

$

4,353

100.0

$

5,794

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 second quarter of 2025 were $1.2 million, compared to $4.5 million for the first quarter of 2025 and $6.0 million for the second quarter of 2024. Gross recoveries were $447,000 for the second quarter of 2025, compared to $176,000 for the first quarter of 2025, and $217,000 for the second quarter of 2024. Continued recoveries are indicative of the ongoing aggressive efforts by management to effectively manage and resolve prior charge-offs, however, recoveries cannot be forecasted or expected at the same pace in the future.

10


Deposits

Total deposits were $4.80 billion at June 30, 2025, a decrease of $54.4 million, or 1.1%, compared to $4.85 billion at March 31, 2025, primarily due to decreases in savings accounts of $23.2 million, NOW accounts of $11.8 million, demand deposits of $9.6 million and time deposits of $10.4 million. The bulk of the linked quarter decline occurred in June.

Total quarterly average deposits for the year over year period increased $274.0 million, or 6.0%, driven by an increase in average time deposits of $85.2 million,  NOW and money markets combined of $224.4 million, and savings accounts of $4.7 million, partially offset by decreases in our average demand deposits of $40.3 million. The overall increase in quarterly average deposits for the year over year period was due to the acquisition of FRME branches in December 2024.  During the second quarter of 2025, newly assumed FRME time deposits experienced run-off, but at a slower rate than the prior quarter.  Additionally, our legacy portfolio also experienced run-off from rate sensitive deposits and seasonality from tax payments.

Borrowings

As of June 30, 2025, and March 31, 2025, we had no other short-term borrowings, compared to $330.0 million as of June 30, 2024, all of which were short-term FHLB advances. The large decrease in short-term FHLB advances is due to an influx of cash resulting from the acquisition of the five FRME branches on December 6, 2024, which allowed us to utilize the purchased deposits for lower cost funding.

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.

11


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,” “build,” “and “near” or other statements that indicate future periods, such as “positioning” or “integration”. Examples of forward-looking statements include, but are not limited to, statements regarding the economic outlook, balance sheet growth, building capital, and statements regarding the anticipated strategic and financial benefits of the merger with Bancorp Financial, including integration progress and competitive positioning. 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 pending or future 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 trade disputes, 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, and disruptions caused from widespread cybersecurity incidents. 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, July 24, 2025, at 10:00 a.m. Eastern Time (9:00 a.m. Central Time) to discuss our second quarter 2025 financial results. Investors may listen to our call via telephone by dialing 888-506-0062, using Entry Code: 566890. 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 10:00 a.m. Eastern Time (9:00 a.m. Central Time) on July 31, 2025, by dialing 877-481-4010, using Conference ID: 52648.

12


Old Second Bancorp, Inc. and Subsidiaries

Consolidated Balance Sheets

(In thousands)

(unaudited)

June 30, 

December 31, 

    

2025

    

2024

Assets

Cash and due from banks

$

63,484

$

52,175

Interest earning deposits with financial institutions

78,283

47,154

Cash and cash equivalents

141,767

99,329

Securities available-for-sale, at fair value

1,177,688

1,161,701

Federal Home Loan Bank Chicago (“FHLBC”) and Federal Reserve Bank Chicago (“FRBC”) stock

19,087

19,441

Loans held-for-sale

3,235

1,556

Loans

3,998,667

3,981,336

Less: allowance for credit losses on loans

42,990

43,619

Net loans

3,955,677

3,937,717

Premises and equipment, net

85,702

87,311

Other real estate owned

6,486

21,617

Mortgage servicing rights, at fair value

9,680

10,374

Goodwill

93,232

93,260

Core deposit intangible

19,972

22,031

Bank-owned life insurance (“BOLI”)

114,399

112,751

Deferred tax assets, net

20,395

26,619

Other assets

53,974

55,670

Total assets

$

5,701,294

$

5,649,377

Liabilities

Deposits:

Noninterest bearing demand

$

1,704,083

$

1,704,920

Interest bearing:

Savings, NOW, and money market

2,400,235

2,315,134

Time

694,121

748,677

Total deposits

4,798,439

4,768,731

Securities sold under repurchase agreements

47,252

36,657

Other short-term borrowings

-

20,000

Junior subordinated debentures

25,774

25,773

Subordinated debentures

59,510

59,467

Other liabilities

51,670

67,715

Total liabilities

4,982,645

4,978,343

Stockholders’ Equity

Common stock

45,094

44,908

Additional paid-in capital

206,207

205,284

Retained earnings

505,419

469,165

Accumulated other comprehensive loss, net

(37,426)

(47,748)

Treasury stock

(645)

(575)

Total stockholders’ equity

718,649

671,034

Total liabilities and stockholders’ equity

$

5,701,294

$

5,649,377

13


Old Second Bancorp, Inc. and Subsidiaries

Consolidated Statements of Income

(In thousands, except share data)

(unaudited)

(unaudited)

Three Months Ended June 30, 

Six Months Ended June 30, 

    

2025

    

2024

    

2025

    

2024

Interest and dividend income

Loans, including fees

$

61,954

$

62,151

$

123,549

$

124,824

Loans held-for-sale

39

19

61

33

Securities:

Taxable

9,959

8,552

19,186

16,644

Tax exempt

1,229

1,292

2,489

2,598

Dividends from FHLBC and FRBC stock

273

584

746

1,219

Interest bearing deposits with financial institutions

1,784

625

2,772

1,235

Total interest and dividend income

75,238

73,223

148,803

146,553

Interest expense

Savings, NOW, and money market deposits

5,606

4,317

10,519

8,354

Time deposits

4,508

4,961

9,337

9,002

Securities sold under repurchase agreements

56

83

124

169

Other short-term borrowings

-

3,338

17

7,895

Junior subordinated debentures

288

288

576

568

Subordinated debentures

546

546

1,092

1,092

Total interest expense

11,004

13,533

21,665

27,080

Net interest and dividend income

64,234

59,690

127,138

119,473

Provision for credit losses

2,500

3,750

4,900

7,250

Net interest and dividend income after provision for credit losses

61,734

55,940

122,238

112,223

Noninterest income

Wealth management

3,103

2,779

6,192

5,340

Service charges on deposits

2,788

2,508

5,507

4,923

Secondary mortgage fees

84

65

157

115

Mortgage servicing rights mark to market loss

(531)

(238)

(1,101)

(144)

Mortgage servicing income

472

513

952

1,001

Net gain on sales of mortgage loans

550

468

1,014

782

Securities gains, net

-

-

-

1

Change in cash surrender value of BOLI

690

820

1,188

1,992

Death benefit realized on BOLI

-

893

-

893

Card related income

2,716

2,577

5,128

4,953

Other income

1,026

742

2,062

1,772

Total noninterest income

10,898

11,127

21,099

21,628

Noninterest expense

Salaries and employee benefits

26,950

23,424

53,943

47,736

Occupancy, furniture and equipment

4,477

3,899

9,025

7,826

Computer and data processing

2,692

2,184

5,040

4,439

FDIC insurance

642

616

1,270

1,283

Net teller & bill paying

670

578

1,328

1,099

General bank insurance

328

312

658

621

Amortization of core deposit intangible

1,022

574

2,059

1,154

Advertising expense

320

472

487

664

Card related expense

1,489

1,323

2,869

2,600

Legal fees

388

238

860

464

Consulting & management fees

527

797

953

1,133

Other real estate expense, net

35

(87)

1,908

(41)

Other expense

3,879

3,547

7,524

7,140

Total noninterest expense

43,419

37,877

87,924

76,118

Income before income taxes

29,213

29,190

55,413

57,733

Provision for income taxes

7,391

7,299

13,761

14,530

Net income

$

21,822

$

21,891

$

41,652

$

43,203

Basic earnings per share

$

0.49

$

0.48

$

0.93

$

0.96

Diluted earnings per share

0.48

0.48

0.91

0.95

Dividends declared per share

0.06

0.05

0.12

0.10

Ending common shares outstanding

45,056,183

44,849,591

45,056,183

44,849,591

Weighted-average basic shares outstanding

45,053,650

44,846,848

45,010,925

44,802,704

Weighted-average diluted shares outstanding

45,839,465

45,682,239

45,780,612

45,603,062

14


Old Second Bancorp, Inc. and Subsidiaries

Quarterly Consolidated Average Balance

(In thousands, unaudited)

2025

2024

Assets

    

2nd Qtr

    

1st Qtr

    

4th Qtr

3rd Qtr

    

2nd Qtr

1st Qtr

Cash and due from banks

$

47,875

$

52,550

$

54,340

$

54,279

$

54,286

$

54,533

Interest earning deposits with financial institutions

166,366

97,645

49,757

48,227

50,740

48,088

Cash and cash equivalents

214,241

150,195

104,097

102,506

105,026

102,621

Securities available-for-sale, at fair value

1,190,123

1,181,257

1,180,024

1,173,948

1,179,430

1,182,888

FHLBC and FRBC stock

19,200

19,441

27,493

30,268

27,574

31,800

Loans held-for-sale

2,375

1,343

2,027

1,557

1,050

746

Loans

3,958,275

3,957,730

4,001,014

3,965,160

3,957,454

4,018,631

Less: allowance for credit losses on loans

41,544

43,543

45,040

42,683

43,468

44,295

Net loans

3,916,731

3,914,187

3,955,974

3,922,477

3,913,986

3,974,336

Premises and equipment, net

87,081

87,709

84,364

82,977

82,332

80,493

Other real estate owned

2,099

13,388

20,136

7,471

4,657

5,123

Mortgage servicing rights, at fair value

9,856

10,211

10,060

10,137

10,754

10,455

Goodwill

93,232

93,253

88,320

86,477

86,477

86,477

Core deposit intangible

20,462

21,490

12,799

9,768

10,340

10,913

Bank-owned life insurance ("BOLI")

113,326

112,848

112,243

110,901

110,440

109,867

Deferred tax assets, net

23,549

25,489

23,549

25,666

32,969

31,323

Other assets

44,431

43,506

43,572

50,989

50,423

49,681

Total other assets

394,036

407,894

395,043

384,386

388,392

384,332

Total assets

$

5,736,706

$

5,674,317

$

5,664,658

$

5,615,142

$

5,615,458

$

5,676,723

Liabilities

Deposits:

Noninterest bearing demand

$

1,729,287

$

1,703,382

$

1,712,106

$

1,691,450

$

1,769,543

$

1,819,476

Interest bearing:

Savings, NOW, and money market

2,424,947

2,370,408

2,195,608

2,142,307

2,195,898

2,202,485

Time

695,946

725,314

692,001

651,663

610,705

558,463

Total deposits

4,850,180

4,799,104

4,599,715

4,485,420

4,576,146

4,580,424

Securities sold under repurchase agreements

35,419

34,529

39,982

45,420

37,430

30,061

Other short-term borrowings

-

1,444

204,783

305,489

242,912

332,198

Junior subordinated debentures

25,773

25,773

25,773

25,773

25,773

25,773

Subordinated debentures

59,500

59,478

59,457

59,436

59,414

59,393

Other liabilities

59,580

70,411

67,067

54,453

68,530

60,024

Total liabilities

5,030,452

4,990,739

4,996,777

4,975,991

5,010,205

5,087,873

Stockholders' equity

Common stock

45,094

45,028

44,908

44,908

44,908

44,787

Additional paid-in capital

205,706

205,433

205,356

204,558

203,654

202,688

Retained earnings

497,224

479,011

462,631

443,435

424,262

405,201

Accumulated other comprehensive loss

(41,080)

(44,853)

(44,251)

(52,907)

(66,682)

(63,365)

Treasury stock

(690)

(1,041)

(763)

(843)

(889)

(461)

Total stockholders' equity

706,254

683,578

667,881

639,151

605,253

588,850

Total liabilities and stockholders' equity

$

5,736,706

$

5,674,317

$

5,664,658

$

5,615,142

$

5,615,458

$

5,676,723

Total Earning Assets

$

5,336,339

$

5,257,416

$

5,260,315

$

5,219,160

$

5,216,248

$

5,282,153

Total Interest Bearing Liabilities

3,241,585

3,216,946

3,217,604

3,230,088

3,172,132

3,208,373

15


Old Second Bancorp, Inc. and Subsidiaries

Quarterly Consolidated Statements of Income

(In thousands, except per share data, unaudited)

2025

2024

    

2nd Qtr

    

1st Qtr

    

4th Qtr

3rd Qtr

    

2nd Qtr

1st Qtr

Interest and Dividend Income

Loans, including fees

$

61,954

$

61,595

$

63,967

$

64,528

$

62,151

$

62,673

Loans held-for-sale

39

22

34

27

19

14

Securities:

Taxable

9,959

9,227

8,899

9,113

8,552

8,092

Tax exempt

1,229

1,260

1,275

1,291

1,292

1,306

Dividends from FHLB and FRBC stock

273

473

562

497

584

635

Interest bearing deposits with financial institutions

1,784

988

542

616

625

610

Total interest and dividend income

75,238

73,565

75,279

76,072

73,223

73,330

Interest Expense

Savings, NOW, and money market deposits

5,606

4,913

4,652

4,860

4,317

4,037

Time deposits

4,508

4,829

5,606

5,539

4,961

4,041

Securities sold under repurchase agreements

56

68

75

93

83

86

Other short-term borrowings

-

17

2,527

4,185

3,338

4,557

Junior subordinated debentures

288

288

289

270

288

280

Subordinated debentures

546

546

546

547

546

546

Total interest expense

11,004

10,661

13,695

15,494

13,533

13,547

Net interest and dividend income

64,234

62,904

61,584

60,578

59,690

59,783

Provision for credit losses

2,500

2,400

3,500

2,000

3,750

3,500

Net interest and dividend income after provision for credit losses

61,734

60,504

58,084

58,578

55,940

56,283

Noninterest Income

Wealth management

3,103

3,089

3,299

2,787

2,779

2,561

Service charges on deposits

2,788

2,719

2,657

2,646

2,508

2,415

Secondary mortgage fees

84

73

88

84

65

50

Mortgage servicing rights mark to market (loss) gain

(531)

(570)

385

(964)

(238)

94

Mortgage servicing income

472

480

475

466

513

488

Net gain on sales of mortgage loans

550

464

516

507

468

314

Securities (losses) gains, net

-

-

-

(1)

-

1

Change in cash surrender value of BOLI

690

498

767

860

820

1,172

Death benefit realized on BOLI

-

-

-

12

893

-

Card related income

2,716

2,412

2,572

2,589

2,577

2,376

Other income

1,026

1,036

851

1,595

742

1,030

Total noninterest income

10,898

10,201

11,610

10,581

11,127

10,501

Noninterest Expense

Salaries and employee benefits

26,950

26,993

25,613

24,676

23,424

24,312

Occupancy, furniture and equipment

4,477

4,548

4,457

3,876

3,899

3,927

Computer and data processing

2,692

2,348

2,659

2,375

2,184

2,255

FDIC insurance

642

628

628

632

616

667

Net teller & bill paying

670

658

575

570

578

521

General bank insurance

328

330

327

320

312

309

Amortization of core deposit intangible

1,022

1,037

716

570

574

580

Advertising expense

320

167

280

299

472

192

Card related expense

1,489

1,380

1,497

1,458

1,323

1,277

Legal fees

388

472

660

202

238

226

Consulting & management fees

527

426

883

480

797

336

Other real estate expense, net

35

1,873

2,019

242

(87)

46

Other expense

3,879

3,645

4,008

3,608

3,547

3,593

Total noninterest expense

43,419

44,505

44,322

39,308

37,877

38,241

Income before income taxes

29,213

26,200

25,372

29,851

29,190

28,543

Provision for income taxes

7,391

6,370

6,262

6,900

7,299

7,231

Net income

$

21,822

$

19,830

$

19,110

$

22,951

$

21,891

$

21,312

Basic earnings per share (GAAP)

$

0.49

$

0.44

$

0.42

$

0.52

$

0.48

$

0.48

Diluted earnings per share (GAAP)

0.48

0.43

0.42

0.50

0.48

0.47

Dividends paid per share

0.06

0.06

0.06

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

June 30, 

March 31, 

June 30, 

    

2025

    

2025

2024

Net Income

Income before income taxes (GAAP)

$

29,213

$

26,200

$

29,190

Pre-tax income adjustments:

Death benefit related to BOLI

-

-

(893)

MSR losses

531

570

238

Merger related costs, net of losses/(gains) on branch sales

810

454

-

Adjusted net income before taxes

30,554

27,224

28,535

Taxes on adjusted net income

7,730

6,619

7,359

Adjusted net income (non-GAAP)

$

22,824

$

20,605

$

21,176

Basic earnings per share (GAAP)

$

0.49

$

0.44

$

0.48

Diluted earnings per share (GAAP)

0.48

0.43

0.48

Adjusted basic earnings per share (non-GAAP)

0.50

0.46

0.46

Adjusted diluted earnings per share (non-GAAP)

0.50

0.45

0.46

Quarters Ended

June 30, 

March 31, 

June 30, 

    

2025

    

2025

2024

Net Interest Margin

Interest income (GAAP)

$

75,238

$

73,565

$

73,223

Taxable-equivalent adjustment:

Loans

9

9

10

Securities

327

335

344

Interest income (TE)

75,574

73,909

73,577

Interest expense (GAAP)

11,004

10,661

13,533

Net interest income (TE)

$

64,570

$

63,248

$

60,044

Net interest income (GAAP)

$

64,234

$

62,904

$

59,690

Average interest earning assets

$

5,336,339

$

5,257,416

$

5,216,248

Net interest margin (TE)

4.85

%

4.88

%

4.63

%

Net interest margin (GAAP)

4.83

%

4.85

%

4.60

%

17


GAAP

Non-GAAP

Three Months Ended

Three Months Ended

June 30, 

March 31, 

June 30, 

June 30, 

March 31, 

June 30, 

2025

2025

2024

2025

2025

2024

Efficiency Ratio / Adjusted Efficiency Ratio

Noninterest expense

$

43,419

$

44,505

$

37,877

$

43,419

$

44,505

$

37,877

Less amortization of core deposit

1,022

1,037

574

1,022

1,037

574

Less other real estate expense, net 

35

1,873

(87)

35

1,873

(87)

Less merger related costs, net of losses on branch sales

N/A

N/A

N/A

810

454

-

Noninterest expense less adjustments

$

42,362

$

41,595

$

37,390

$

41,552

$

41,141

$

37,390

Net interest income

$

64,234

$

62,904

$

59,690

$

64,234

$

62,904

$

59,690

Taxable-equivalent adjustment:

Loans

N/A

N/A

N/A

9

9

10

Securities

N/A

N/A

N/A

327

335

344

Net interest income including adjustments

64,234

62,904

59,690

64,570

63,248

60,044

Noninterest income

10,898

10,201

11,127

10,898

10,201

11,127

Less death benefit related to BOLI

-

-

893

-

-

893

Less MSRs mark to market losses

(531)

(570)

(238)

(531)

(570)

(238)

Taxable-equivalent adjustment:

Change in cash surrender value of BOLI

N/A

N/A

N/A

184

132

456

Noninterest income including adjustments

11,429

10,771

10,472

11,613

10,903

10,928

Net interest income including adjustments plus noninterest income including adjustments

$

75,663

$

73,675

$

70,162

$

76,183

$

74,151

$

70,972

Efficiency ratio / Adjusted efficiency ratio

55.99

%

56.46

%

53.29

%

54.54

%

55.48

%

52.68

%

N/A - Not applicable.

Quarters Ended

June 30, 

March 31,

June 30, 

2025

    

2025

2024

Return on Average Tangible Common Equity Ratio

Net income (GAAP)

$

21,822

$

19,830

$

21,891

Income before income taxes (GAAP)

$

29,213

$

26,200

$

29,190

Pre-tax income adjustments:

Amortization of core deposit intangibles

1,022

1,037

574

Net income, excluding intangibles amortization, before taxes

30,235

27,237

29,764

Taxes on net income, excluding intangible amortization, before taxes

7,650

6,622

7,443

Net income, excluding intangibles amortization (non-GAAP)

$

22,585

$

20,615

$

22,321

Total Average Common Equity

$

706,254

683,578

$

605,253

Less Average goodwill and intangible assets

113,694

114,743

96,817

Average tangible common equity (non-GAAP)

$

592,560

$

568,835

$

508,436

Return on average common equity (GAAP)

12.39

%

11.76

%

14.55

%

Return on average tangible common equity (non-GAAP)

15.29

%

14.70

%

17.66

%

18