1 NASDAQ: SBSI 2021 KBW Community Bank Investor Conference August 3, 2021 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 gua ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2021 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from ____________ to ____________ Commission file number: 000-12247 SOUTHSIDE BANCSHARES, INC. (Exact name of registrant as specified in its chart ...

Financial Data and Key Metrics Changes - The company reported net income of $21.3 million, with earnings per share of $0.65, and an annualized return on assets (ROA) of 1.2% [6][14] - There was a linked quarter decrease in net income of $12.8 million or 37.5%, primarily due to an increase in provision expense and a decrease in net security gains [14] - The annualized loan growth as of June 30, 2021, was 4%, with a target of 7% loan growth for the year [8][15] Business Line Data and Key Metrics Changes - The loan portfolio increased by $14.5 million to $3.64 billion, with commercial real estate loans rising by $82.3 million, offset by a decrease in construction loans of $77.5 million [15][16] - The allowance for loan losses increased by approximately $1.5 million or 3.5% to $42.9 million, with the allowance as a percentage of total loans at 1.18% [17][18] - Noninterest income, excluding net gains on the sale of AFS securities, decreased by $702,000 or 6% for the linked quarter [23] Market Data and Key Metrics Changes - Economic conditions in the company's market areas remained strong, supported by company relocations and population growth in Texas [13] - The company’s securities portfolio increased by $215.8 million or 8.2% on a linked quarter basis [20] Company Strategy and Development Direction - The company is focusing on hiring additional revenue producers in high-growth markets, particularly in Dallas-Fort Worth, Austin, and Houston [52][53] - There is an ongoing interest in M&A opportunities, with an uptick in conversations regarding potential deals [44] Management's Comments on Operating Environment and Future Outlook - Management expressed optimism about loan growth in the second half of the year, citing a healthy loan pipeline [48] - The company anticipates some slight compression in net interest margin (NIM) but expects to stabilize above 3% [34] Other Important Information - The company plans to redeem a $100 million sub debt issue pending regulatory approval, which will positively impact net interest income and margin [11] - The effective tax rate decreased slightly to 11.9% for the second quarter due to an increase in tax-exempt income [27][28] Q&A Session Summary Question: Inquiry about bond portfolio and categories purchased - Management indicated that they primarily bought tax-free municipals and some taxable bonds, with no significant value found in the mortgage arena [32] Question: Outlook on loan growth and NIM stabilization - Management does not foresee a significant decrease in NIM going forward and expects to see income from round two of PPP loans in the next 6 to 9 months [34] Question: Cash flow from mortgage-backed securities - The company anticipates cash flow averaging around $30 million a month, with an expected $90 million in redemptions for the third quarter [40] Question: Unexpected payoffs in construction portfolio - Payoffs were due to projects selling before stabilization, leading to earlier-than-expected payoffs [42] Question: M&A opportunities - Management confirmed an increase in M&A conversations and opportunities [44] Question: Loan growth expectations and market conditions - Management is optimistic about loan growth, citing a healthy pipeline and ongoing construction projects [48] Question: Share buyback activity - The company plans to continue share repurchases, having bought back approximately 91,000 shares in the first quarter [56]

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 For the transition period from ____________ to ____________ FORM 10-Q Commission file number: 000-12247 (Mark One) SOUTHSIDE BANCSHARES, INC. ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2021 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Address of Principal Executive Offices) (Zip Code ...

Southside Bancshares, Inc (NASDAQ:SBSI) Q1 2021 Earnings Conference Call April 22, 2021 ET Company Participants Lindsey Bailes - VP, IR Lee Gibson - President and CEO Julie Shamburger - CFO Conference Call Participants Brett Rabatin - Hovde Group Brady Gailey - KBW Brad Milsaps - Piper Sandler Operator Good day, and thank you for standing by. Welcome to the Southside Bancshares, Inc. First quarter 2021 Earnings Call. [Operator Instructions] After the speaker presentation, there will be a question-and-answer ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2020 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period From _______ to _______ Commission file number 000-12247 SOUTHSIDE BANCSHARES, INC. (Exact name of registrant as specified in its charter) (State or O ...

Southside Bancshares, Inc. (NASDAQ:SBSI) Q4 2020 Earnings Conference Call January 27, 2021 10:00 AM ET Company Participants Lindsey Bailes - IR Lee Gibson - President & CEO Julie Shamburger - CFO Conference Call Participants Brett Rabatin - Hovde Group Michael Young - Truist Securities Graham Dick - Piper Sandler Woody Lay - KBW Operator Good morning, ladies and gentlemen. Welcome to the Southside Bancshares Inc Fourth Quarter and Year-End 2020 Earnings Call. At this time, all participants are in a listen-o ...

Southside Bancshares, Inc. (NASDAQ:SBSI) Q3 2020 Earnings Conference Call October 23, 2020 10:00 AM ET Company Participants Lindsey Bailes - Vice President, Investor Relations Lee Gibson - President and Chief Executive Officer Julie Shamburger - Chief Financial Officer Conference Call Participants Michael Young - Truist Securities Will Jones - KBW Operator Good morning, ladies and gentlemen, and welcome to the Southside Bancshares Incorporated Third Quarter 2020 Earnings Call. At this time, all participants ...

Southside Bancshares, Inc (NASDAQ:SBSI) Q2 2020 Earnings Conference Call July 22, 2020 10:00 AM ET Company Participants Suni Davis - President, Chief Executive Officer and Director Lee Gibson - President and Chief Executive Officer Julie Shamburger - Chief Financial Officer Conference Call Participants Michael Young - SunTrust Brad Milsaps - Piper Sandler Wood Lay - KBW Operator Good day, ladies and gentlemen. And welcome to the Southside Bancshares Incorporated Second Quarter 2020 Earnings Call. At this ti ...

Southside Bancshares, Inc. (NASDAQ:SBSI) Q1 2020 Earnings Conference Call May 5, 2020 10:00 AM ET Company Participants Lindsey Bibby - Vice President, Investor Relations Lee Gibson - President & Chief Executive Officer Julie Shamburger - Chief Financial Officer Conference Call Participants Brad Milsaps - Piper Sandler Michael Young - SunTrust Brady Gailey - KBW Operator Ladies and gentlemen, thank you for standing by and welcome to the Southside Bancshares' Incorporation's First Quarter 2020 Earnings Confer ...