Southside Bancshares, Inc. · NYSE:SBSI

Southside Bancshares — Debt Investor Presentation (August 2025)

26 slides from Southside Bancshares's debt investor presentation, Aug 4, 2025

  1. Slide 1: Fixed Income Investor Presentation August 2025

    1 NYSE: SBSI Fixed Income Investor Presentation August 2025

  2. Slide 2: Disclaimers

    Disclaimers 2 Safe Harbor Disclosure and Forward-Looking Statements Certain statements in this presentation other than historical data and information may constitute “forward-looking statements” within the meaning of and subject to the safe harbor protections of the Private Securities Litigation Ref

  3. Slide 3: Disclaimers (continued)

    Disclaimers (continued) 3 Industry and Market Data This presentation includes estimates regarding market and industry data. Unless otherwise indicated, information concerning our industry and the markets in which we operate, including our general expectations, market position, market opportunity, an

  4. Slide 4: Southside Snapshot

    Southside Snapshot • Founded in 1960 with headquarters in Tyler, TX • Community-focused financial institution • Offers a broad range of consumer, commercial and mortgage banking services, as well as private banking, wealth management and trust services, and brokerage services • Awarded one of the "B

  5. Slide 5: Experienced Management Team

    • Chief Accounting Officer of Southside Bank from 2011-2016 • Over 40 years with Southside Lee Gibson, Chief Executive Officer • Board member of William Mann Community Development Corporation • 10 years with Southside and over 35 years of experience in the banking and financial services industry • B

  6. Slide 6: Investment Highlights

    Conservatively positioned, highly liquid balance sheet History of low credit losses, even in economic downturns Investment Highlights Positioned in solid Texas markets that are supported by long-term population growth 6 c Stable profitability across interest rate cycles, supported by excellent low-c

  7. Slide 7: Markets of Operation

    Source: FDIC (as of 6/30/2024), S&P Market Intelligence, Fortune Magazine Markets of Operation Background and Highlights East Texas 25 • Founded in 1960 in Tyler, TX • Leading deposit market share (38%) in Smith County, TX • Tyler metropolitan area population of approximately 240,000 Dallas – Fort W

  8. Slide 8: Geographic Footprint

    Geographic Footprint Geographic Footprint consists of 53 branches in Texas, including 12 grocery store branches 8

  9. Slide 9: Balance Sheet Growth

    Total Assets ($mm) Total Deposits ($mm) Loans HFI ($mm) Balance Sheet Growth 9 $6,550 $6,198 $5,722 $6,654 $6,632 $3,645 $7,260 $7,559 $8,285 $8,517 $8,340 $4,602 $4,662 $4,525 $4,148 Source: Company documents

  10. Slide 10: Profitability

    Profitability Net Income ($mm) Net Interest Income ($mm) ROAA ROATCE(1) Efficiency Ratio (FTE)(1) 1.59% 1.43% 1.11% 1.06% 1.05% 2021 2022 2023 2024 YTD Q2 2025 17.04% 18.56% 16.03% 14.92% 14.26% 2021 2022 2023 2024 YTD Q2 2025 49.03% 47.39% 51.30% 53.52% 54.36% 2021 2022 2023 2024 YTD Q2 2025 10 Sou

  11. Slide 11: Quarterly Yield & Cost Trends

    Source: Company documents 1. Annualized 2. Calculated on a fully taxable-equivalent basis (FTE), a non-GAAP measure. See non-GAAP reconciliation in the Appendix. Quarterly Yield & Cost Trends (1)(2) (1)(2) (1) 11

  12. Slide 12: Loan Portfolio Composition

    Loan Portfolio Composition Loan Balances ($mm) Loans 6/30/2025 Loan Type $mm % Real Estate Loans (RE): Construction $ 470 10 % 1-4 Family Residential 736 16 % Commercial RE 2,606 57 % Commercial Loans 381 8 % Municipal Loans 364 8 % Loans to Individuals 45 1 % Total $ 4,602 100 % Commercial Loans, 8

  13. Slide 13: Commercial Loan Concentrations

    Multi Family 29% Retail Office 21% 13% Industrial 9% Homebuilding 5% SFR Lot Development 1% Land Development 3% Residential 3% Skilled Nursing 3% Miniwarehouse 3% Leased Medical 3% Raw Land 2% Assisted & Independent Living 2% Hotel 2% Other 1% Commercial Loan Concentrations 13 Investment Real Estate

  14. Slide 14: CRE Concentration

    CRE Concentration(1) Consolidated Bank 14 Source: Company documents 1. CRE concentration defined as non-owner occupied CRE loans as a percentage of total capital as outlined in the Joint Guidance on Concentrations in Commercial Real Estate Lending, Sound Risk Management Practices published by the Bo

  15. Slide 15: Asset Quality Trends

    Asset Quality Trends NPAs / Loans and OREO(1)(2) Nonaccrual Loans / Loans(1) NCOs / Average Loans ACL / NPLs(1) 15 Source: Company documents 1. Pursuant to our adoption of ASU 2022-02, effective January 1, 2023, we prospectively discontinued the recognition and measurement guidance previously requir

  16. Slide 16: Deposit Composition

    Deposit Composition Deposit Balances and Rates ($mm) Deposit Mix 6/30/2025 16 Deposits $mm % Interest Bearing Demand $ 3,235 49 % Noninterest Bearing 1,368 21 % Savings 604 9 % Retail Time 253 4 % Jumbo Time 1,172 17 % Total $ 6,632 100 % Source: Company documents

  17. Slide 17: Liquidity

    Liquidity 17 • Liquidity sources remain strong, with $2.33 billion in liquidity lines available as of June 30, 2025. As of June 30, 2025 (in thousands) Line of Credit Borrowings Total Available for Future Liquidity Swapped FHLB advances $ 2,377,691 $ 511,526 $ 1,866,165 $ 280,000 Federal Reserve dis

  18. Slide 18: Securities Portfolio Composition

    Securities Portfolio Composition Total Securities ($mm) Securities 6/30/2025 Securities ($mm) HTM(1) AFS Total % US Treasury $ — $ 134 $ 134 5 % State & Political subdivisions 1,042 389 1,431 53 % Corporate Bonds & Other 121 17 138 5 % Residential 81 912 993 36 % Commercial 29 5 34 1 % Total $ 1,273

  19. Slide 19: Capital Ratios

    Capital Ratios 19 8.0% 10.0% Bank Only Consolidated Well Capitalized Adequately Capitalized Source: Company Documents

  20. Slide 20: Interest Coverage & Double Leverage

    Interest Coverage & Double Leverage 20 Three Months Ended, (dollars shown in thousands) 2022 2023 2024 6/30/25 Double Leverage Bank-Level Equity $879,449 $917,035 $940,947 $948,449 Consolidated Equity 745,997 773,288 811,942 807,200 Double Leverage Ratio 118% 119% 116% 117% Interest Coverage Earning

  21. Slide 21: Appendix

    Appendix 21 21

  22. Slide 22: Interest Rate Sensitivity

    22 Net Interest Income Impact(1) Interest Rate Sensitivity (1.51%) (1.06%) (0.65%) 0.00% 2.69% 5.34% -200 bps -100 bps -50 bps Base +100 bps +200 bps Source: Company documents as of 6/30/2025 1. Estimated change in net interest income reflects immediate rate change for illustrative purposes

  23. Slide 23: Non-GAAP Financial Measures

    This presentation contains certain financial information determined by methods other than in accordance with accounting principles generally accepted in the United States (GAAP). These non-GAAP financial measures include return on average tangible common equity, tangible book value per common share,

  24. Slide 24: Non-GAAP Reconciliation (Quarterly)

    As of and for the Three Months Ended, (dollars in thousands, except per share data) 6/30/2024 9/30/2024 12/31/2024 3/31/2025 6/30/2025 Net income available to common shareholders $ 24,673 $ 20,524 $ 21,786 $ 21,507 $ 21,813 Plus: After-tax amortization expense 243 220 196 176 157 Adjusted net income

  25. Slide 25: Non-GAAP Reconciliation (Annual)

    As of and for the Year Ended December 31, As of and for the Six Months Ended June 30, (dollars in thousands, except per share data) 2021 2022 2023 2024 2024 2025 Net income available to common shareholders $ 113,401 $ 105,020 $ 86,692 $ 88,494 $ 46,184 $ 43,320 Plus: After-tax amortization expense 2

  26. Slide 26: Thank you

    75] SOUTHSIDE B29 BANCSHARES, INC’ Thank you

Southside Bancshares — Debt Investor Presentation (August 2025) on 6ix