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

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.

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(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 [email protected].

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.