Southside Bancshares, Inc.NYSE: SBSI

Southside Bancshares, Inc. Announces Financial Results for the Third Quarter Ended September 30, 2025

· Issued by Southside Bancshares, Inc. via GlobeNewswire

TYLER, Texas, Oct. 24, 2025 (GLOBE NEWSWIRE) -- Southside Bancshares, Inc. (“Southside” or the “Company”) (NYSE: SBSI) today reported its financial results for the quarter ended September 30, 2025.

“During the third quarter, we restructured a portion of our available for sale (“AFS”) securities portfolio to enhance future earnings by selling approximately $325 million of primarily lower yielding long duration municipal securities and, to a lesser extent, mortgage-backed securities (“MBS”), with a combined taxable equivalent yield of approximately 3.28% at a loss of $24.4 million,” stated Lee R. Gibson, Chief Executive Officer of Southside. “The majority of the sales occurred during September. The proceeds from the sale of these securities funded a portion of the loan growth during the quarter with the balance reinvested in US Agency MBS pools and Texas municipal securities. As previously disclosed, we issued $150.0 million of our subordinated debt at 7.00% fixed to floating rate notes during August. Linked quarter, net interest income increased $1.45 million and our net interest margin decreased one basis point to 2.94% due to the $150.0 million issuance of subordinated debt during the quarter. Linked quarter, total loans increased $163.4 million, with $81.0 million of this growth occurring on September 30, 2025.”

Operating Results for the Three Months Ended September 30, 2025

Net income was $4.9 million for the three months ended September 30, 2025, compared to $20.5 million for the same period in 2024, a decrease of $15.6 million, or 76.1%. Earnings per diluted common share were $0.16 for the three months ended September 30, 2025, compared to $0.68 for the same period in 2024, a decrease of $0.52, or 76.5%. The decrease in net income was driven by the net loss on sale of AFS securities and, to a lesser extent, an increase in noninterest expense, partially offset by increases in several noninterest income categories, decreases in income tax expense and provision for credit losses and an increase in net interest income. For the three months ended September 30, 2025, we had a $24.4 million net loss on sale of AFS securities, compared to a net loss of $1.9 million for the same period in 2024. Annualized returns on average assets and average shareholders’ equity for the three months ended September 30, 2025 were 0.23% and 2.40%, respectively, compared to 0.98% and 10.13%, respectively, for the three months ended September 30, 2024. Our efficiency ratio and tax-equivalent efficiency ratio(1) were 54.87% and 52.99%, respectively, for the three months ended September 30, 2025, compared to 53.94% and 51.90%, respectively, for the three months ended September 30, 2024, and 55.67% and 53.70%, respectively, for the three months ended June 30, 2025.

Net interest income for the three months ended September 30, 2025 was $55.7 million, an increase of $0.3 million, or 0.5%, compared to the same period in 2024. The increase in net interest income was due to the decrease in the average rate paid on our interest bearing liabilities and the increase in the average balance of our interest earning assets, partially offset by the decrease in the average yield of our interest earning assets. Linked quarter, net interest income increased $1.5 million, or 2.7%, compared to $54.3 million for the three months ended June 30, 2025, due to increases in the average balance of and the average yield on our interest earning assets, partially offset by increases in the average balance of and average rate paid on our interest bearing liabilities.

Our net interest margin and tax-equivalent net interest margin(1) decreased to 2.81% and 2.94%, respectively, for the three months ended September 30, 2025, compared to 2.82% and 2.95%, respectively, for both the three-month periods ended September 30, 2024 and June 30, 2025.

Noninterest income, excluding the net losses on the AFS securities, was $12.4 million and $10.1 million for the three months ended September 30, 2025 and 2024, respectively, an increase of $2.3 million, or 22.8%. The increase was due to increases in other noninterest income and trust fees. On a linked quarter basis, noninterest income, excluding the net losses on the AFS securities increased $0.3 million, or 2.1%, compared to the three months ended June 30, 2025, due primarily to the increase in trust fees during the three months ended September 30, 2025.

Noninterest expense increased $1.2 million, or 3.3%, to $37.5 million for the three months ended September 30, 2025, compared to $36.3 million for the same period in 2024, primarily due to increases in salaries and employee benefits expense, other noninterest expense and professional fees. On a linked quarter basis, noninterest expense decreased by $1.7 million, or 4.4%, compared to the three months ended June 30, 2025, due to a decrease in other noninterest expense, partially offset by an increase in salaries and employee benefits expense. The decrease in other noninterest expense was primarily due to a one-time charge of $1.2 million on the demolition of an old branch facility following completion of the new branch during the three months ended June 30, 2025.

Income tax expense decreased $4.2 million, or 95.7%, for the three months ended September 30, 2025, compared to the same period in 2024. On a linked quarter basis, income tax expense decreased $4.5 million, or 96.0%. Our effective tax rate (“ETR”) decreased to 3.7% for the three months ended September 30, 2025, compared to 17.6% for the three months ended September 30, 2024, and decreased from 17.8% for the three months ended June 30, 2025. The lower ETR for the three months ended September 30, 2025 compared to the same period in 2024, was primarily due to the impact of the net loss on the sale of AFS securities of $24.4 million recorded during the third quarter of 2025 on our tax-exempt income as a percentage of pre-tax income as well as a decrease in state income tax expense.

Operating Results for the Nine Months Ended September 30, 2025

Net income was $48.2 million for the nine months ended September 30, 2025, compared to $66.7 million for the same period in 2024, a decrease of $18.5 million, or 27.7%. Earnings per diluted common share were $1.59 for the nine months ended September 30, 2025, compared to $2.20 for the same period in 2024, a decrease of $0.61, or 27.7%. The decrease in net income was driven by the net loss on the sale of AFS securities and, to a lesser extent, increases in noninterest expense and provision for credit losses, partially offset by increases in several noninterest income categories, decreases in income tax expense and an increase in net interest income. For the nine months ended September 30, 2025, we had a $24.9 million net loss on sale of AFS securities, compared to a net loss of $2.5 million for the same period in 2024. Returns on average assets and average shareholders’ equity for the nine months ended September 30, 2025 were 0.77% and 7.89%, respectively, compared to 1.06% and 11.19%, respectively, for the nine months ended September 30, 2024. Our efficiency ratio and tax-equivalent efficiency ratio(1) were 55.84% and 53.89%, respectively, for the nine months ended September 30, 2025, compared to 55.56% and 53.35%, respectively, for the nine months ended September 30, 2024.

Net interest income was $163.8 million for the nine months ended September 30, 2025, compared to $162.4 million for the same period in 2024, an increase of $1.4 million, or 0.9%, due to decreases in the average rate paid on and average balance of our interest bearing liabilities and a change in the mix of our interest earning assets, partially offset by the decrease in the average yield of interest earning assets.

Our net interest margin and tax-equivalent net interest margin(1) increased to 2.79% and 2.92%, respectively, for the nine months ended September 30, 2025, compared to 2.76% and 2.90%, respectively, for the same period in 2024.

Noninterest income, excluding the net losses on sale of AFS securities, was $35.3 million and $32.0 million, respectively, for the nine months ended September 30, 2025 and 2024, an increase of $3.4 million, or 10.5%. The increase was primarily due to an increase in other noninterest income and trust fees, partially offset by a decrease in BOLI income.

Noninterest expense was $113.9 million for the nine months ended September 30, 2025, compared to $109.0 million for the same period in 2024, an increase of $4.9 million, or 4.5%. The increase was primarily due to increases in other noninterest expense and professional fees.

Income tax expense decreased $4.6 million, or 32.3%, for the nine months ended September 30, 2025, compared to the same period in 2024. Our ETR was approximately 16.6% and 17.6% for the nine months ended September 30, 2025 and 2024, respectively. The lower ETR for the nine months ended September 30, 2025, as compared to the same period in 2024, was primarily due to the impact of the net loss on the sale of AFS securities of $24.4 million recorded during the third quarter of 2025 on our tax-exempt income as a percentage of pre-tax income as well as a decrease in state income tax expense.

Balance Sheet Data

At September 30, 2025, Southside had $8.38 billion in total assets, compared to $8.52 billion at December 31, 2024 and $8.36 billion at September 30, 2024.

Loans at September 30, 2025 were $4.77 billion, an increase of $187.2 million, or 4.1%, compared to $4.58 billion at September 30, 2024. Linked quarter, loans increased $163.4 million, or 3.5%, due to increases of $82.6 million in commercial real estate loans, $49.3 million in commercial loans and $49.1 million in construction loans. These increases were partially offset by decreases of $10.4 million in municipal loans, $6.0 million in 1-4 family residential loans and $1.3 million in loans to individuals.

Securities at September 30, 2025 were $2.56 billion, a decrease of $141.0 million, or 5.2%, compared to $2.70 billion at September 30, 2024. Linked quarter, securities decreased $174.2 million, or 6.4%, from $2.73 billion at June 30, 2025.

Deposits at September 30, 2025 were $6.96 billion, an increase of $525.9 million, or 8.2%, compared to $6.44 billion at September 30, 2024. Linked quarter, deposits increased $329.6 million, or 5.0%, from $6.63 billion at June 30, 2025.

At September 30, 2025, we had 179,097 total deposit accounts with an average balance of $34,000. Our estimated uninsured deposits were 36.9% of total deposits as of September 30, 2025. When excluding affiliate deposits (Southside-owned deposits) and public fund deposits (all collateralized), our total estimated deposits without insurance or collateral was 21.7% as of September 30, 2025. Our noninterest bearing deposits represent approximately 20.3% of total deposits. Linked quarter, our cost of interest bearing deposits remained at 2.82%. Linked quarter, our cost of total deposits decreased one basis point from 2.26% in the prior quarter to 2.25%.

Our cost of interest bearing deposits decreased 16 basis points, from 2.99% for the nine months ended September 30, 2024, to 2.83% for the nine months ended September 30, 2025. Our cost of total deposits decreased 11 basis points, from 2.37% for the nine months ended September 30, 2024, to 2.26% for the nine months ended September 30, 2025.

Capital Resources and Liquidity

Our capital ratios and contingent liquidity sources remain solid. During the third quarter ended September 30, 2025, we repurchased 26,692 shares of the Company’s common stock at an average price of $30.24 per share, pursuant to our Stock Repurchase Plan (the “Plan”). On October 16, 2025, the Board of the Company increased its authorization under the Company’s current Plan by 1.0 million shares, for a total authorization to repurchase up to 2.0 million shares of the Company’s common stock from time to time. Under the Plan, previously approved on July 20, 2023, the Company has repurchased approximately 868,000 shares at an average price per share of $28.43, resulting in approximately 1.1 million shares remaining. Repurchases of our outstanding common stock may be carried out in open market purchases, privately negotiated transactions or pursuant to any trading plan that might be adopted in accordance with Rule 10b5-1 of The Securities Exchange Act of 1934, as amended. The Company has no obligation to repurchase any shares under the Plan and may modify, suspend or discontinue the Plan at any time. We have not purchased any common stock pursuant to the Plan subsequent to September 30, 2025.

As of September 30, 2025, our total available contingent liquidity, net of current outstanding borrowings, was $2.77 billion, consisting of FHLB advances, Federal Reserve Discount Window and correspondent bank lines of credit.

Asset Quality

Nonperforming assets at September 30, 2025 were $35.6 million, or 0.42% of total assets, an increase of $2.7 million, or 8.2%, from $32.9 million at June 30, 2025, due primarily to an increase of $3.0 million in nonaccrual loans. The increase in nonaccrual loans compared to June 30, 2025 included a $1.9 million increase in commercial loans and a $1.1 million increase in commercial real estate loans. Nonperforming assets increased $28.0 million, or 365.1%, compared to $7.7 million, or 0.09% of total assets, at September 30, 2024, due primarily to an increase of $27.5 million in restructured loans. The increase in restructured loans was due to the extension of maturity in the first quarter of 2025 on a $27.5 million commercial real estate loan to allow for an extended lease up period.

The allowance for loan losses totaled $45.3 million, or 0.95% of total loans, at September 30, 2025, compared to $44.4 million, or 0.97% of total loans, at June 30, 2025. The allowance for loan losses was $44.3 million, or 0.97% of total loans, at September 30, 2024. The decrease in allowance as a percentage of total loans compared to September 30, 2024 was primarily due to an improved commercial real estate forecast in the CECL model.

For the three months ended September 30, 2025, we recorded a provision for credit losses for loans of $1.7 million, compared to $2.3 million and $0.7 million for the three months ended September 30, 2024 and June 30, 2025, respectively. Net charge-offs were $0.8 million for the three months ended September 30, 2025, compared to net charge-offs of $0.4 million and $0.9 million for the three months ended September 30, 2024 and June 30, 2025, respectively. Net charge-offs were $2.0 million for the nine months ended September 30, 2025, compared to net charge-offs of $1.0 million for the nine months ended September 30, 2024.

We recorded a reversal of provision for credit losses on off-balance-sheet credit exposures of $0.6 million for the three months ended September 30, 2025, compared to a provision for losses on off-balance-sheet credit exposures of $0.1 million and a reversal of provision of $19,000 for the three months ended September 30, 2024 and June 30, 2025, respectively. We recorded a provision for losses on off-balance-sheet credit exposures of $8,000 for the nine months ended September 30, 2025, compared to a reversal of provision for credit losses on off-balance-sheet credit exposures of $0.6 million for the nine months ended September 30, 2024. The balance of the allowance for off-balance-sheet credit exposures was $3.1 million and $3.3 million at September 30, 2025 and 2024, respectively, and is included in other liabilities.

Dividend

Southside Bancshares, Inc. declared a third quarter cash dividend of $0.36 per share on August 7, 2025, which was paid on September 4, 2025, to all shareholders of record as of August 21, 2025.

_______________

(1) Refer to “Non-GAAP Financial Measures” below and to “Non-GAAP Reconciliation” at the end of the financial statement tables in this Earnings Release for more information and for a reconciliation of this non-GAAP financial measure to the nearest GAAP financial measure.

Conference Call

Southside's management team will host a conference call to discuss its third quarter ended September 30, 2025 financial results on Friday, October 24, 2025 at 11:00 a.m. CDT. The conference call can be accessed by webcast, for listen-only mode, on the company website, https://investors.southside.com, under Events.

Those interested in participating in the question and answer session, or others who prefer to call-in, can register at https://registrations.events/direct/Q4I3408089094 to receive the dial-in number and unique code to access the conference call seamlessly. While not required, it is recommended that those wishing to participate, register 10 minutes prior to the conference call to ensure a more efficient registration process.

For those unable to attend the live event, a webcast recording will be available on the company website, https://investors.southside.com, for at least 30 days, beginning approximately two hours following the conference call.

Non-GAAP Financial Measures

Our accounting and reporting policies conform to generally accepted accounting principles (“GAAP”) in the United States and prevailing practices in the banking industry. However, certain non-GAAP measures are used by management to supplement the evaluation of our performance. These include the following fully taxable-equivalent measures (“FTE”): (i) Net interest income (FTE), (ii) net interest margin (FTE), (iii) net interest spread (FTE), and (iv) efficiency ratio (FTE), which include the effects of taxable-equivalent adjustments using a federal income tax rate of 21% to increase tax-exempt interest income to a tax-equivalent basis. Interest income earned on certain assets is completely or partially exempt from federal income tax. As such, these tax-exempt instruments typically yield lower returns than taxable investments.

Net interest income (FTE), net interest margin (FTE) and net interest spread (FTE). Net interest income (FTE) is a non-GAAP measure that adjusts for the tax-favored status of net interest income from certain loans and investments and is not permitted under GAAP in the consolidated statements of income. We believe that this measure is the preferred industry measurement of net interest income and that it enhances comparability of net interest income arising from taxable and tax-exempt sources. The most directly comparable financial measure calculated in accordance with GAAP is our net interest income. Net interest margin (FTE) is the ratio of net interest income (FTE) to average earning assets. The most directly comparable financial measure calculated in accordance with GAAP is our net interest margin. Net interest spread (FTE) is the difference in the average yield on average earning assets on a tax-equivalent basis and the average rate paid on average interest bearing liabilities. The most directly comparable financial measure calculated in accordance with GAAP is our net interest spread.

Efficiency ratio (FTE).  The efficiency ratio (FTE) is a non-GAAP measure that provides a measure of productivity in the banking industry. This ratio is calculated to measure the cost of generating one dollar of revenue. The ratio is designed to reflect the percentage of one dollar which must be expended to generate that dollar of revenue. We calculate this ratio by dividing noninterest expense, excluding amortization expense on intangibles and certain nonrecurring expense by the sum of net interest income (FTE) and noninterest income, excluding net gain (loss) on sale of securities available for sale and certain nonrecurring impairments. The most directly comparable financial measure calculated in accordance with GAAP is our efficiency ratio.

These non-GAAP financial measures should not be considered alternatives to GAAP-basis financial statements and other bank holding companies may define or calculate these non-GAAP measures or similar measures differently. Whenever we present a non-GAAP financial measure in an SEC filing, we are also required to present the most directly comparable financial measure calculated and presented in accordance with GAAP and reconcile the differences between the non-GAAP financial measure and such comparable GAAP measure.

Management believes adjusting net interest income, net interest margin and net interest spread to a fully taxable-equivalent basis is a standard practice in the banking industry as these measures provide useful information to make peer comparisons. Tax-equivalent adjustments are reflected in the respective earning asset categories as listed in the “Average Balances with Average Yields and Rates” tables.

A reconciliation of our non-GAAP financial measures to the comparable GAAP financial measures is included at the end of the financial statement tables.

About Southside Bancshares, Inc.

Southside Bancshares, Inc. is a bank holding company with approximately $8.38 billion in assets as of September 30, 2025, that owns 100% of Southside Bank. Southside Bank currently has 53 branches in Texas and operates a network of 70 ATMs/ITMs.

To learn more about Southside Bancshares, Inc., please visit our investor relations website at https://investors.southside.com. Our investor relations site provides a detailed overview of our activities, financial information and historical stock price data. To receive email notification of company news, events and stock activity, please register on the website under Resources and Investor Email Alerts. Questions or comments may be directed to Lindsey Bailes at (903) 630-7965, or lindsey.bailes@southside.com.

Forward-Looking Statements

Certain statements of other than historical fact that are contained in this press release and in other written materials, documents and oral statements issued by or on behalf of the Company may be considered to be “forward-looking statements” within the meaning of and subject to the safe harbor protections of the Private Securities Litigation Reform Act of 1995. These forward-looking statements are not guarantees of future performance, nor should they be relied upon as representing management’s views as of any subsequent date. These statements may include words such as “expect,” “estimate,” “project,” “anticipate,” “appear,” “believe,” “could,” “should,” “may,” “might,” “will,” “would,” “seek,” “intend,” “probability,” “risk,” “goal,” “target,” “objective,” “plans,” “potential,” and similar expressions. Forward-looking statements are statements with respect to the Company’s beliefs, plans, expectations, objectives, goals, anticipations, assumptions, estimates, intentions and future performance and are subject to significant known and unknown risks and uncertainties, which could cause the Company's actual results to differ materially from the results discussed in the forward-looking statements. For example, trends in asset quality, capital, liquidity, the Company's ability to sell nonperforming assets, expense reductions, planned operational efficiencies and earnings from growth and certain market risk disclosures, including the impact of interest rates and our expectations regarding rate changes, tax reform, inflation, tariffs, the impacts related to or resulting from other economic factors are based upon information presently available to management and are dependent on choices about key model characteristics and assumptions and are subject to various limitations. By their nature, certain of the market risk disclosures are only estimates and could be materially different from what actually occurs in the future. Accordingly, our results could materially differ from those that have been estimated. The most significant factors that could cause future results to differ materially from those anticipated by our forward-looking statements include general economic conditions in our markets, including the ongoing impact of higher inflation levels, interest rate fluctuations, including the impact of changes in interest rates on our financial projections, models and guidance, as well as the effects of declines in the real estate market, tariffs or trade wars (including reduced consumer spending, lower economic growth or recession, reduced demand for U.S. exports, disruptions to supply chains, and decreased demand for other banking products and services), high unemployment and increasing insurance costs, as well as the financial stress to borrowers as a result of the foregoing, all of which could impact economic growth and could cause a reduction in financial transactions and business activities, including decreased deposits and reduced loan originations, and our ability to manage liquidity in a rapidly changing and unpredictable market.

Additional information concerning the Company and its business, including additional factors that could materially affect the Company’s financial results, is included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2024, under “Part I - Item 1. Forward Looking Information” and “Part I - Item 1A. Risk Factors” and in the Company’s other filings with the Securities and Exchange Commission. The Company disclaims any obligation to update any factors or to announce publicly the result of revisions to any of the forward-looking statements included herein to reflect future events or developments.

Southside Bancshares, Inc.
Consolidated Financial Summary (Unaudited)
(Dollars in thousands)

As of

2025

2024

Sep 30,

Jun 30,

Mar 31,

Dec 31,

Sep 30,

ASSETS

Cash and due from banks

$

90,519

$

109,669

$

103,359

$

91,409

$

130,147

Interest earning deposits

365,263

260,357

293,364

281,945

333,825

Federal funds sold

11,130

20,069

34,248

52,807

22,325

Securities available for sale, at estimated fair value

1,292,431

1,457,124

1,457,939

1,533,894

1,408,437

Securities held to maturity, at net carrying value

1,263,401

1,272,906

1,278,330

1,279,234

1,288,403

Total securities

2,555,832

2,730,030

2,736,269

2,813,128

2,696,840

Federal Home Loan Bank stock, at cost

9,359

24,384

34,208

33,818

40,291

Loans held for sale

497

428

903

1,946

768

Loans

4,765,289

4,601,933

4,567,239

4,661,597

4,578,048

Less: Allowance for loan losses

(45,294

)

(44,421

)

(44,623

)

(44,884

)

(44,276

)

Net loans

4,719,995

4,557,512

4,522,616

4,616,713

4,533,772

Premises & equipment, net

147,187

147,263

142,245

141,648

138,811

Goodwill

201,116

201,116

201,116

201,116

201,116

Other intangible assets, net

1,161

1,333

1,531

1,754

2,003

Bank owned life insurance

139,697

138,826

137,962

138,313

137,489

Other assets

141,404

148,979

135,479

142,851

124,876

Total assets

$

8,383,160

$

8,339,966

$

8,343,300

$

8,517,448

$

8,362,263

LIABILITIES AND SHAREHOLDERS' EQUITY

Noninterest bearing deposits

$

1,411,764

$

1,368,453

$

1,379,641

$

1,357,152

$

1,377,022

Interest bearing deposits

5,549,823

5,263,511

5,211,210

5,297,096

5,058,680

Total deposits

6,961,587

6,631,964

6,590,851

6,654,248

6,435,702

Other borrowings and Federal Home Loan Bank borrowings

200,706

611,367

691,417

808,352

865,856

Subordinated notes, net of unamortized debt
issuance costs

239,601

92,115

92,078

92,042

92,006

Trust preferred subordinated debentures, net of unamortized debt issuance costs

60,278

60,277

60,276

60,274

60,273

Other liabilities

86,138

137,043

92,055

90,590

103,172

Total liabilities

7,548,310

7,532,766

7,526,677

7,705,506

7,557,009

Shareholders' equity

834,850

807,200

816,623

811,942

805,254

Total liabilities and shareholders' equity

$

8,383,160

$

8,339,966

$

8,343,300

$

8,517,448

$

8,362,263

Southside Bancshares, Inc.
Consolidated Financial Highlights (Unaudited)
(Dollars and shares in thousands, except per share data)


Three Months Ended

2025

2024

Sep 30,

Jun 30,

Mar 31,

Dec 31,

Sep 30,

Income Statement:

Total interest and dividend income

$

101,896

$

98,562

$

100,288

$

101,689

$

105,703

Total interest expense

46,178

44,296

46,436

47,982

50,239

Net interest income

55,718

54,266

53,852

53,707

55,464

Provision for (reversal of) credit losses

1,092

622

758

1,384

2,389

Net interest income after provision for (reversal of) credit losses

54,626

53,644

53,094

52,323

53,075

Noninterest income

Deposit services

6,069

6,125

5,829

6,084

6,199

Net gain (loss) on sale of securities available for sale

(24,395

)

—

(554

)

—

(1,929

)

Gain (loss) on sale of loans

164

99

55

138

115

Trust fees

2,081

1,879

1,765

1,773

1,628

Bank owned life insurance

871

833

799

848

857

Brokerage services

1,172

1,219

1,120

1,054

1,068

Other

2,048

1,990

1,209

2,384

233

Total noninterest income (loss)

(11,990

)

12,145

10,223

12,281

8,171

Noninterest expense

Salaries and employee benefits

22,803

22,272

22,382

22,960

22,233

Net occupancy

3,761

3,621

3,404

3,629

3,613

Advertising, travel & entertainment

907

950

924

884

734

ATM expense

444

405

378

378

412

Professional fees

1,451

1,401

1,520

1,645

1,206

Software and data processing

2,770

3,027

2,839

2,931

2,951

Communications

321

342

383

320

423

FDIC insurance

920

955

947

931

939

Amortization of intangibles

172

198

223

249

278

Other

3,985

6,086

4,089

4,232

3,543

Total noninterest expense

37,534

39,257

37,089

38,159

36,332

Income before income tax expense

5,102

26,532

26,228

26,445

24,914

Income tax expense

189

4,719

4,721

4,659

4,390

Net income

$

4,913

$

21,813

$

21,507

$

21,786

$

20,524

Common Share Data:

Weighted-average basic shares outstanding

30,067

30,234

30,390

30,343

30,286

Weighted-average diluted shares outstanding

30,135

30,308

30,483

30,459

30,370

Common shares outstanding end of period

30,066

30,082

30,410

30,379

30,308

Earnings per common share

Basic

$

0.16

$

0.72

$

0.71

$

0.72

$

0.68

Diluted

0.16

0.72

0.71

0.71

0.68

Book value per common share

27.77

26.83

26.85

26.73

26.57

Tangible book value per common share

21.04

20.10

20.19

20.05

19.87

Cash dividends paid per common share

0.36

0.36

0.36

0.36

0.36

Selected Performance Ratios:

Return on average assets

0.23

%

1.07

%

1.03

%

1.03

%

0.98

%

Return on average shareholders’ equity

2.40

10.73

10.57

10.54

10.13

Return on average tangible common equity(1)

3.28

14.38

14.14

14.12

13.69

Average yield on earning assets (FTE)(1)

5.27

5.25

5.23

5.24

5.51

Average rate on interest bearing liabilities

3.01

2.98

3.03

3.12

3.28

Net interest margin (FTE)(1)

2.94

2.95

2.86

2.83

2.95

Net interest spread (FTE)(1)

2.26

2.27

2.20

2.12

2.23

Average earning assets to average interest bearing liabilities

129.13

129.33

128.10

129.55

128.51

Noninterest expense to average total assets

1.78

1.92

1.78

1.80

1.73

Efficiency ratio (FTE)(1)

52.99

53.70

55.04

54.00

51.90

(1)   Refer to “Non-GAAP Reconciliation” at the end of the financial statement tables in this Earnings Release for a reconciliation of this non-GAAP financial measure to the nearest GAAP financial measure.

Southside Bancshares, Inc.
Consolidated Financial Highlights (Unaudited)
(Dollars in thousands)


Three Months Ended

2025

2024

Sep 30,

Jun 30,

Mar 31,

Dec 31,

Sep 30,

Nonperforming Assets:

$

35,608

$

32,909

$

32,193

$

3,589

$

7,656

Nonaccrual loans

7,955

4,998

4,254

3,185

7,254

Accruing loans past due more than 90 days

—

—

—

—

—

Restructured loans

27,501

27,512

27,505

2

—

Other real estate owned

128

380

388

388

388

Repossessed assets

24

19

46

14

14

Asset Quality Ratios:

Ratio of nonaccruing loans to:

Total loans

0.17

%

0.11

%

0.09

%

0.07

%

0.16

%

Ratio of nonperforming assets to:

Total assets

0.42

0.39

0.39

0.04

0.09

Total loans

0.75

0.72

0.70

0.08

0.17

Total loans and OREO

0.75

0.72

0.70

0.08

0.17

Ratio of allowance for loan losses to:

Nonaccruing loans

569.38

888.78

1,048.97

1,409.23

610.37

Nonperforming assets

127.20

134.98

138.61

1,250.60

578.32

Total loans

0.95

0.97

0.98

0.96

0.97

Net charge-offs (recoveries) to average loans outstanding

0.07

0.08

0.03

0.08

0.04

Capital Ratios:

Shareholders’ equity to total assets

9.96

9.68

9.79

9.53

9.63

Common equity tier 1 capital

12.97

13.36

13.44

13.04

13.07

Tier 1 risk-based capital

13.99

14.41

14.49

14.07

14.12

Total risk-based capital

19.01

16.91

17.01

16.49

16.59

Tier 1 leverage capital

9.78

10.03

9.73

9.67

9.61

Period end tangible equity to period end tangible assets(1)

7.73

7.43

7.54

7.33

7.38

Average shareholders’ equity to average total assets

9.72

9.94

9.75

9.76

9.67

(1)   Refer to the “Non-GAAP Reconciliation” at the end of the financial statement tables in this Earnings Release for a reconciliation of this non-GAAP financial measure to the nearest GAAP financial measure.

Southside Bancshares, Inc.
Consolidated Financial Highlights (Unaudited)
(Dollars in thousands)


Three Months Ended

2025

2024

Loan Portfolio Composition

Sep 30,

Jun 30,

Mar 31,

Dec 31,

Sep 30,

Real Estate Loans:

Construction

$

519,528

$

470,380

$

458,101

$

537,827

$

585,817

1-4 Family Residential

730,061

736,108

741,432

740,396

755,406

Commercial

2,688,712

2,606,072

2,577,229

2,579,735

2,422,612

Commercial Loans

429,952

380,612

371,643

363,167

358,854

Municipal Loans

353,324

363,746

371,271

390,968

402,041

Loans to Individuals

43,712

45,015

47,563

49,504

53,318

Total Loans

$

4,765,289

$

4,601,933

$

4,567,239

$

4,661,597

$

4,578,048

Summary of Changes in Allowances:

Allowance for Securities Held to Maturity

Balance at beginning of period

$

55

$

64

$

—

$

—

$

—

Provision for (reversal of) securities held to maturity

—

(9

)

64

—

—

Balance at end of period

$

55

$

55

$

64

$

—

$

—

Allowance for Loan Losses

Balance at beginning of period

$

44,421

$

44,623

$

44,884

$

44,276

$

42,407

Loans charged-off

(1,335

)

(1,194

)

(613

)

(1,232

)

(773

)

Recoveries of loans charged-off

491

342

310

277

365

Net loans (charged-off) recovered

(844

)

(852

)

(303

)

(955

)

(408

)

Provision for (reversal of) loan losses

1,717

650

42

1,563

2,277

Balance at end of period

$

45,294

$

44,421

$

44,623

$

44,884

$

44,276

Allowance for Off-Balance-Sheet Credit Exposures

Balance at beginning of period

$

3,774

$

3,793

$

3,141

$

3,320

$

3,208

Provision for (reversal of) off-balance-sheet credit exposures

(625

)

(19

)

652

(179

)

112

Balance at end of period

$

3,149

$

3,774

$

3,793

$

3,141

$

3,320

Total Allowance for Credit Losses

$

48,498

$

48,250

$

48,480

$

48,025

$

47,596

Southside Bancshares, Inc.
Consolidated Financial Highlights (Unaudited)
(Dollars in thousands)

Nine Months Ended

September 30,

2025

2024

Income Statement:

Total interest and dividend income

$

300,746

$

312,647

Total interest expense

136,910

150,227

Net interest income

163,836

162,420

Provision for (reversal of) credit losses

2,472

1,962

Net interest income after provision for (reversal of) credit losses

161,364

160,458

Noninterest income

Deposit services

18,023

18,341

Net gain (loss) on sale of securities available for sale

(24,949

)

(2,510

)

Gain (loss) on sale of loans

318

(101

)

Trust fees

5,725

4,420

Bank owned life insurance

2,503

3,408

Brokerage services

3,511

3,163

Other

5,247

2,731

Total noninterest income (loss)

10,378

29,452

Noninterest expense

Salaries and employee benefits

67,457

67,330

Net occupancy

10,786

10,725

Advertising, travel & entertainment

2,781

2,479

ATM expense

1,227

1,105

Professional fees

4,372

3,435

Software and data processing

8,636

8,667

Communications

1,046

1,282

FDIC insurance

2,822

2,859

Amortization of intangibles

593

922

Other

14,160

10,174

Total noninterest expense

113,880

108,978

Income before income tax expense

57,862

80,932

Income tax expense

9,629

14,224

Net income

$

48,233

$

66,708

Common Share Data:

Weighted-average basic shares outstanding

30,229

30,276

Weighted-average diluted shares outstanding

30,316

30,332

Common shares outstanding end of period

30,066

30,308

Earnings per common share

Basic

$

1.59

$

2.20

Diluted

1.59

2.20

Book value per common share

27.77

26.57

Tangible book value per common share

21.04

19.87

Cash dividends paid per common share

1.08

1.08

Selected Performance Ratios:

Return on average assets

0.77

%

1.06

%

Return on average shareholders’ equity

7.89

11.19

Return on average tangible common equity(1)

10.59

15.20

Average yield on earning assets (FTE)(1)

5.25

5.45

Average rate on interest bearing liabilities

3.01

3.27

Net interest margin (FTE)(1)

2.92

2.90

Net interest spread (FTE)(1)

2.24

2.18

Average earning assets to average interest bearing liabilities

128.85

128.28

Noninterest expense to average total assets

1.83

1.74

Efficiency ratio (FTE)(1)

53.89

53.35

(1)   Refer to “Non-GAAP Reconciliation” at the end of the financial statement tables in this Earnings Release for a reconciliation of this non-GAAP financial measure to the nearest GAAP financial measure.

Southside Bancshares, Inc.
Consolidated Financial Highlights (Unaudited)
(Dollars in thousands)

Nine Months Ended

September 30,

2025

2024

Nonperforming Assets:

$

35,608

$

7,656

Nonaccrual loans

7,955

7,254

Accruing loans past due more than 90 days

—

—

Restructured loans

27,501

—

Other real estate owned

128

388

Repossessed assets

24

14

Asset Quality Ratios:

Ratio of nonaccruing loans to:

Total loans

0.17

%

0.16

%

Ratio of nonperforming assets to:

Total assets

0.42

0.09

Total loans

0.75

0.17

Total loans and OREO

0.75

0.17

Ratio of allowance for loan losses to:

Nonaccruing loans

569.38

610.37

Nonperforming assets

127.20

578.32

Total loans

0.95

0.97

Net charge-offs (recoveries) to average loans outstanding

0.06

0.03

Capital Ratios:

Shareholders’ equity to total assets

9.96

9.63

Common equity tier 1 capital

12.97

13.07

Tier 1 risk-based capital

13.99

14.12

Total risk-based capital

19.01

16.59

Tier 1 leverage capital

9.78

9.61

Period end tangible equity to period end tangible assets(1)

7.73

7.38

Average shareholders’ equity to average total assets

9.80

9.51

(1) Refer to the “Non-GAAP Reconciliation” at the end of the financial statement tables in this Earnings Release for a reconciliation of this non-GAAP financial measure to the nearest GAAP financial measure.

Southside Bancshares, Inc.
Consolidated Financial Highlights (Unaudited)
(Dollars in thousands)

Nine Months Ended

September 30,

Loan Portfolio Composition

2025

2024

Real Estate Loans:

Construction

$

519,528

$

585,817

1-4 Family Residential

730,061

755,406

Commercial

2,688,712

2,422,612

Commercial Loans

429,952

358,854

Municipal Loans

353,324

402,041

Loans to Individuals

43,712

53,318

Total Loans

$

4,765,289

$

4,578,048

Summary of Changes in Allowances:

Allowance for Securities Held to Maturity

Balance at beginning of period

$

—

$

—

Provision for (reversal of) securities held to maturity

55

—

Balance at end of period

$

55

$

—

Summary of Changes in Allowances:

Allowance for Loan Losses

Balance at beginning of period

$

44,884

$

42,674

Loans charged-off

(3,142

)

(2,128

)

Recoveries of loans charged-off

1,143

1,156

Net loans (charged-off) recovered

(1,999

)

(972

)

Provision for (reversal of) loan losses

2,409

2,574

Balance at end of period

$

45,294

$

44,276

Allowance for Off-Balance-Sheet Credit Exposures

Balance at beginning of period

$

3,141

$

3,932

Provision for (reversal of) off-balance-sheet credit exposures

8

(612

)

Balance at end of period

$

3,149

$

3,320

Total Allowance for Credit Losses

$

48,498

$

47,596

The tables that follow show average earning assets and interest bearing liabilities together with the average yield on the earning assets and the average rate of the interest bearing liabilities for the periods presented. The interest and related yields presented are on a fully taxable-equivalent basis and are therefore non-GAAP measures. See “Non-GAAP Financial Measures” and “Non-GAAP Reconciliation” for more information.

Southside Bancshares, Inc.
Average Balances and Average Yields and Rates (Annualized) (Unaudited)
(Dollars in thousands)

Three Months Ended

September 30, 2025

June 30, 2025

Average Balance

Interest

Average Yield/Rate(3)

Average Balance

Interest

Average Yield/Rate(3)

ASSETS

Loans(1)

$

4,640,220

$

70,240

6.01

%

$

4,519,668

$

67,798

6.02

%

Loans held for sale

776

12

6.14

%

1,108

16

5.79

%

Securities:

Taxable investment securities(2)

669,712

5,578

3.30

%

735,669

6,205

3.38

%

Tax-exempt investment securities(2)

1,094,978

10,097

3.66

%

1,130,903

10,351

3.67

%

Mortgage-backed and related securities(2)

1,058,860

14,174

5.31

%

1,003,887

13,040

5.21

%

Total securities

2,823,550

29,849

4.19

%

2,870,459

29,596

4.14

%

Federal Home Loan Bank stock, at cost, and equity investments

37,937

374

3.91

%

31,169

524

6.74

%

Interest earning deposits

334,523

3,631

4.31

%

259,617

2,753

4.25

%

Federal funds sold

17,546

195

4.41

%

27,778

308

4.45

%

Total earning assets

7,854,552

104,301

5.27

%

7,709,799

100,995

5.25

%

Cash and due from banks

87,815

84,419

Accrued interest and other assets

455,884

452,573

Less:  Allowance for loan losses

(44,476

)

(44,747

)

Total assets

$

8,353,775

$

8,202,044

LIABILITIES AND SHAREHOLDERS’ EQUITY

Savings accounts

$

618,059

1,772

1.14

%

$

596,125

1,451

0.98

%

Certificates of deposit

1,505,292

15,752

4.15

%

1,407,017

14,905

4.25

%

Interest bearing demand accounts

3,320,993

21,234

2.54

%

3,311,330

21,071

2.55

%

Total interest bearing deposits

5,444,344

38,758

2.82

%

5,314,472

37,427

2.82

%

Federal Home Loan Bank borrowings

298,138

2,847

3.79

%

394,119

3,721

3.79

%

Subordinated notes, net of unamortized debt issuance costs

169,196

2,319

5.44

%

92,097

935

4.07

%

Trust preferred subordinated debentures, net of unamortized debt issuance costs

60,277

1,025

6.75

%

60,276

1,015

6.75

%

Repurchase agreements

75,207

662

3.49

%

72,295

634

3.52

%

Other borrowings

35,544

567

6.33

%

28,022

564

8.07

%

Total interest bearing liabilities

6,082,706

46,178

3.01

%

5,961,281

44,296

2.98

%

Noninterest bearing deposits

1,375,075

1,339,463

Accrued expenses and other liabilities

83,601

85,827

Total liabilities

7,541,382

7,386,571

Shareholders’ equity

812,393

815,473

Total liabilities and shareholders’ equity

$

8,353,775

$

8,202,044

Net interest income (FTE)

$

58,123

$

56,699

Net interest margin (FTE)

2.94

%

2.95

%

Net interest spread (FTE)

2.26

%

2.27

%

(1)   Interest on loans includes net fees on loans that are not material in amount.
(2)   For the purpose of calculating the average yield, the average balance of securities do not include unrealized gains and losses on AFS securities.
(3)   Yield/rate includes the impact of applicable derivatives.

Note: As of September 30, 2025 and June 30, 2025, loans totaling $8.0 million and $5.0 million, respectively, were on nonaccrual status. Our policy is to reverse previously accrued but unpaid interest on nonaccrual loans; thereafter, interest income is recorded to the extent received when appropriate.

Southside Bancshares, Inc.
Average Balances and Average Yields and Rates (Annualized) (Unaudited)
(Dollars in thousands)

Three Months Ended

March 31, 2025

December 31, 2024

Average Balance

Interest

Average Yield/Rate(3)

Average Balance

Interest

Average Yield/Rate(3)

ASSETS

Loans(1)

$

4,625,902

$

68,160

5.98

%

$

4,604,175

$

70,155

6.06

%

Loans held for sale

752

11

5.93

%

1,562

23

5.86

%

Securities:

Taxable investment securities(2)

749,155

6,363

3.44

%

784,321

6,949

3.52

%

Tax-exempt investment securities(2)

1,134,590

10,253

3.66

%

1,138,271

10,793

3.77

%

Mortgage-backed and related securities(2)

1,041,038

13,523

5.27

%

1,031,187

12,043

4.65

%

Total securities

2,924,783

30,139

4.18

%

2,953,779

29,785

4.01

%

Federal Home Loan Bank stock, at cost, and equity investments

43,285

483

4.53

%

37,078

591

6.34

%

Interest earning deposits

319,889

3,370

4.27

%

273,656

3,160

4.59

%

Federal funds sold

43,813

478

4.42

%

43,121

508

4.69

%

Total earning assets

7,958,424

102,641

5.23

%

7,913,371

104,222

5.24

%

Cash and due from banks

89,703

102,914

Accrued interest and other assets

457,948

454,387

Less:  Allowance for loan losses

(45,105

)

(44,418

)

Total assets

$

8,460,970

$

8,426,254

LIABILITIES AND SHAREHOLDERS’ EQUITY

Savings accounts

$

593,953

1,429

0.98

%

$

594,196

1,456

0.97

%

Certificates of deposit

1,336,815

14,406

4.37

%

1,187,800

13,537

4.53

%

Interest bearing demand accounts

3,406,342

21,412

2.55

%

3,459,122

23,468

2.70

%

Total interest bearing deposits

5,337,110

37,247

2.83

%

5,241,118

38,461

2.92

%

Federal Home Loan Bank borrowings

614,897

5,837

3.85

%

572,993

5,557

3.86

%

Subordinated notes, net of unamortized debt issuance costs

92,060

932

4.11

%

92,024

945

4.09

%

Trust preferred subordinated debentures, net of unamortized debt issuance costs

60,275

1,014

6.82

%

60,274

1,095

7.23

%

Repurchase agreements

75,291

666

3.59

%

80,891

782

3.85

%

Other borrowings

33,061

740

9.08

%

61,196

1,142

7.42

%

Total interest bearing liabilities

6,212,694

46,436

3.03

%

6,108,496

47,982

3.12

%

Noninterest bearing deposits

1,334,933

1,383,204

Accrued expenses and other liabilities

88,450

112,320

Total liabilities

7,636,077

7,604,020

Shareholders’ equity

824,893

822,234

Total liabilities and shareholders’ equity

$

8,460,970

$

8,426,254

Net interest income (FTE)

$

56,205

$

56,240

Net interest margin (FTE)

2.86

%

2.83

%

Net interest spread (FTE)

2.20

%

2.12

%

(1)   Interest on loans includes net fees on loans that are not material in amount.
(2)   For the purpose of calculating the average yield, the average balance of securities do not include unrealized gains and losses on AFS securities.
(3)   Yield/rate includes the impact of applicable derivatives.


Note: As of March 31, 2025 and December 31, 2024, loans totaling $4.3 million and $3.2 million, respectively, were on nonaccrual status. Our policy is to reverse previously accrued but unpaid interest on nonaccrual loans; thereafter, interest income is recorded to the extent received when appropriate.

Southside Bancshares, Inc.
Average Balances and Average Yields and Rates (Annualized) (Unaudited)
(Dollars in thousands)


Three Months Ended

September 30, 2024

Average
Balance

Interest

Average
Yield/Rate
(3)

ASSETS

Loans(1)

$

4,613,028

$

72,493

6.25

%

Loans held for sale

871

11

5.02

%

Securities:

Taxable investment securities(2)

791,914

7,150

3.59

%

Tax-exempt investment securities(2)

1,174,445

11,825

4.01

%

Mortgage-backed and related securities(2)

886,325

11,976

5.38

%

Total securities

2,852,684

30,951

4.32

%

Federal Home Loan Bank stock, at cost, and equity investments

41,159

582

5.63

%

Interest earning deposits

281,313

3,798

5.37

%

Federal funds sold

33,971

488

5.71

%

Total earning assets

7,823,026

108,323

5.51

%

Cash and due from banks

100,578

Accrued interest and other assets

455,091

Less:  Allowance for loan losses

(42,581

)

Total assets

$

8,336,114

LIABILITIES AND SHAREHOLDERS’ EQUITY

Savings accounts

$

598,116

1,490

0.99

%

Certificates of deposit

1,087,613

12,647

4.63

%

Interest bearing demand accounts

3,409,911

24,395

2.85

%

Total interest bearing deposits

5,095,640

38,532

3.01

%

Federal Home Loan Bank borrowings

618,708

6,488

4.17

%

Subordinated notes, net of unamortized debt issuance costs

91,988

937

4.05

%

Trust preferred subordinated debentures, net of unamortized debt issuance costs

60,273

1,180

7.79

%

Repurchase agreements

83,297

899

4.29

%

Other borrowings

137,482

2,203

6.37

%

Total interest bearing liabilities

6,087,388

50,239

3.28

%

Noninterest bearing deposits

1,344,165

Accrued expenses and other liabilities

98,331

Total liabilities

7,529,884

Shareholders’ equity

806,230

Total liabilities and shareholders’ equity

$

8,336,114

Net interest income (FTE)

$

58,084

Net interest margin (FTE)

2.95

%

Net interest spread (FTE)

2.23

%

(1)   Interest on loans includes net fees on loans that are not material in amount.
(2)   For the purpose of calculating the average yield, the average balance of securities do not include unrealized gains and losses on AFS securities.
(3)   Yield/rate includes the impact of applicable derivatives.

Note: As of September 30, 2024, loans totaling $7.3 million were on nonaccrual status. Our policy is to reverse previously accrued but unpaid interest on nonaccrual loans; thereafter, interest income is recorded to the extent received when appropriate.

Southside Bancshares, Inc.
Average Balances and Average Yields and Rates (Annualized) (Unaudited)
(Dollars in thousands)

Nine Months Ended

September 30, 2025

September 30, 2024

Average
Balance

Interest

Average
Yield/Rate

Average
Balance

Interest

Average
Yield/Rate

ASSETS

Loans(1)

$

4,595,316

$

206,198

6.00

%

$

4,589,621

$

211,635

6.16

%

Loans held for sale

879

39

5.93

%

3,721

53

1.90

%

Securities:

Taxable investment securities(2)

717,887

18,146

3.38

%

785,422

21,126

3.59

%

Tax-exempt investment securities(2)

1,120,012

30,701

3.66

%

1,237,884

37,754

4.07

%

Mortgage-backed and related securities(2)

1,034,660

40,737

5.26

%

827,396

33,179

5.36

%

Total securities

2,872,559

89,584

4.17

%

2,850,702

92,059

4.31

%

Federal Home Loan Bank stock, at cost, and equity investments

37,444

1,381

4.93

%

40,565

1,488

4.90

%

Interest earning deposits

304,730

9,754

4.28

%

320,371

13,105

5.46

%

Federal funds sold

29,616

981

4.43

%

57,265

2,347

5.47

%

Total earning assets

7,840,544

307,937

5.25

%

7,862,245

320,687

5.45

%

Cash and due from banks

87,305

108,325

Accrued interest and other assets

455,402

440,340

Less:  Allowance for loan losses

(44,774

)

(43,096

)

Total assets

$

8,338,477

$

8,367,814

LIABILITIES AND SHAREHOLDERS’ EQUITY

Savings accounts

$

602,800

4,652

1.03

%

$

602,450

4,368

0.97

%

Certificates of deposit

1,416,992

45,063

4.25

%

1,016,812

34,618

4.55

%

Interest bearing demand accounts

3,345,909

63,717

2.55

%

3,518,906

76,210

2.89

%

Total interest bearing deposits

5,365,701

113,432

2.83

%

5,138,168

115,196

2.99

%

Federal Home Loan Bank borrowings

434,558

12,405

3.82

%

610,893

18,893

4.13

%

Subordinated notes, net of unamortized debt issuance costs

118,067

4,186

4.74

%

92,631

2,829

4.08

%

Trust preferred subordinated debentures, net of unamortized debt issuance costs

60,276

3,054

6.77

%

60,271

3,526

7.81

%

Repurchase agreements

74,264

1,962

3.53

%

87,811

2,821

4.29

%

Other borrowings

32,218

1,871

7.76

%

139,306

6,962

6.68

%

Total interest bearing liabilities

6,085,084

136,910

3.01

%

6,129,080

150,227

3.27

%

Noninterest bearing deposits

1,349,971

1,342,945

Accrued expenses and other liabilities

85,882

99,758

Total liabilities

7,520,937

7,571,783

Shareholders’ equity

817,540

796,031

Total liabilities and shareholders’ equity

$

8,338,477

$

8,367,814

Net interest income (FTE)

$

171,027

$

170,460

Net interest margin (FTE)

2.92

%

2.90

%

Net interest spread (FTE)

2.24

%

2.18

%

(1)   Interest on loans includes net fees on loans that are not material in amount.
(2)   For the purpose of calculating the average yield, the average balance of securities is presented at historical cost.

Note: As of September 30, 2025 and 2024, loans totaling $8.0 million and $7.3 million, respectively, were on nonaccrual status. Our policy is to reverse previously accrued but unpaid interest on nonaccrual loans; thereafter, interest income is recorded to the extent received when appropriate.

The following tables set forth the reconciliation of return on average common equity to return on average tangible common equity, book value per share to tangible book value per share, net interest income to net interest income adjusted to a fully taxable-equivalent basis assuming a 21% marginal tax rate for interest earned on tax-exempt assets such as municipal loans and investment securities, along with the calculation of total revenue, adjusted noninterest expense, efficiency ratio (FTE), net interest margin (FTE) and net interest spread (FTE) for the applicable periods presented.

Southside Bancshares, Inc.
Non-GAAP Reconciliation (Unaudited)
(Dollars and shares in thousands, except per share data)

Three Months Ended

Nine Months Ended

2025

2024

2025

2024

Sep 30,

Jun 30,

Mar 31,

Dec 31,

Sep 30,

Sep 30,

Sep 30,

Reconciliation of return on average common equity to return on average tangible common equity:

Net income

$

4,913

$

21,813

$

21,507

$

21,786

$

20,524

$

48,233

$

66,708

After-tax amortization expense

136

157

176

196

220

469

728

Adjusted net income available to common shareholders

$

5,049

$

21,970

$

21,683

$

21,982

$

20,744

$

48,702

$

67,436

Average shareholders' equity

$

812,393

$

815,473

$

824,893

$

822,234

$

806,230

$

817,540

$

796,031

Less: Average intangibles for the period

(202,380

)

(202,569

)

(202,784

)

(203,020

)

(203,288

)

(202,576

)

(203,592

)

Average tangible shareholders' equity

$

610,013

$

612,904

$

622,109

$

619,214

$

602,942

$

614,964

$

592,439

Return on average tangible common equity

3.28

%

14.38

%

14.14

%

14.12

%

13.69

%

10.59

%

15.20

%

Reconciliation of book value per share to tangible book value per share:

Common equity at end of period

$

834,850

$

807,200

$

816,623

$

811,942

$

805,254

$

834,850

$

805,254

Less: Intangible assets at end of period

(202,277

)

(202,449

)

(202,647

)

(202,870

)

(203,119

)

(202,277

)

(203,119

)

Tangible common shareholders' equity at end of period

$

632,573

$

604,751

$

613,976

$

609,072

$

602,135

$

632,573

$

602,135

Total assets at end of period

$

8,383,160

$

8,339,966

$

8,343,300

$

8,517,448

$

8,362,263

$

8,383,160

$

8,362,263

Less: Intangible assets at end of period

(202,277

)

(202,449

)

(202,647

)

(202,870

)

(203,119

)

(202,277

)

(203,119

)

Tangible assets at end of period

$

8,180,883

$

8,137,517

$

8,140,653

$

8,314,578

$

8,159,144

$

8,180,883

$

8,159,144

Period end tangible equity to period end tangible assets

7.73

%

7.43

%

7.54

%

7.33

%

7.38

%

7.73

%

7.38

%

Common shares outstanding end of period

30,066

30,082

30,410

30,379

30,308

30,066

30,308

Tangible book value per common share

$

21.04

$

20.10

$

20.19

$

20.05

$

19.87

$

21.04

$

19.87

Reconciliation of efficiency ratio to efficiency ratio (FTE), net interest margin to net interest margin (FTE) and net interest spread to net interest spread (FTE):

Net interest income (GAAP)

$

55,718

$

54,266

$

53,852

$

53,707

$

55,464

$

163,836

$

162,420

Tax-equivalent adjustments:

Loans

553

565

581

598

608

1,699

1,897

Tax-exempt investment securities

1,852

1,868

1,772

1,935

2,012

5,492

6,143

Net interest income (FTE)(1)

58,123

56,699

56,205

56,240

58,084

171,027

170,460

Noninterest income

(11,990

)

12,145

10,223

12,281

8,171

10,378

29,452

Nonrecurring income(2)

24,395

—

554

(25

)

2,797

24,949

2,239

Total revenue

$

70,528

$

68,844

$

66,982

$

68,496

$

69,052

$

206,354

$

202,151

Noninterest expense

$

37,534

$

39,257

$

37,089

$

38,159

$

36,332

$

113,880

$

108,978

Pre-tax amortization expense

(172

)

(198

)

(223

)

(249

)

(278

)

(593

)

(922

)

Nonrecurring expense(3)

14

(2,090

)

(1

)

(919

)

(219

)

(2,077

)

(200

)

Adjusted noninterest expense

$

37,376

$

36,969

$

36,865

$

36,991

$

35,835

$

111,210

$

107,856

Efficiency ratio

54.87

%

55.67

%

57.04

%

56.08

%

53.94

%

55.84

%

55.56

%

Efficiency ratio (FTE)(1)

52.99

%

53.70

%

55.04

%

54.00

%

51.90

%

53.89

%

53.35

%

Average earning assets

$

7,854,552

$

7,709,799

$

7,958,424

$

7,913,371

$

7,823,026

$

7,840,544

$

7,862,245

Net interest margin

2.81

%

2.82

%

2.74

%

2.70

%

2.82

%

2.79

%

2.76

%

Net interest margin (FTE)(1)

2.94

%

2.95

%

2.86

%

2.83

%

2.95

%

2.92

%

2.90

%

Net interest spread

2.14

%

2.15

%

2.08

%

1.99

%

2.10

%

2.12

%

2.04

%

Net interest spread (FTE)(1)

2.26

%

2.27

%

2.20

%

2.12

%

2.23

%

2.24

%

2.18

%

                                                                                                                                                                                                                                                                                                                                                                                                            
(1)   These amounts are presented on a fully taxable-equivalent basis and are non-GAAP measures.
(2)   These adjustments may include net gain or loss on sale of securities available for sale, BOLI income related to death benefits realized and other investment income or loss in the periods where applicable.
(3)   These adjustments may include foreclosure expenses, branch closure expenses and other miscellaneous expense, in the periods where applicable.