Southside Bancshares SBSI

Mr. Gibson retired on December 31, 2025 as CEO of the Company and the Bank, a role he held since January 2017. He also previously served as President of the Company and the Bank from 2015 to 2024 and served as an executive and the Chief Financial Officer of the Company and the Bank from 2000 to 2015, and held various other roles throughout his career with the Company which began in 1984. He currently serves as President and Director of Bethesda Health Clinic, Director and Executive Committee Member of the Tyler Economic Development Council and a Board member of the R.W. Fair Foundation. He previously served as Chairman of the Board of Directors of the Federal Home Loan Bank of Dallas for six years, Council of Federal Home Loan Banks for two years, as well as a Director of the Texas Bankers Association.

Mr. Donahoe currently serves as President and Chief Executive Officer (CEO) of the Company and the Bank, he has served as President of the Company and the Bank since May 2024 and CEO since January 2026. Upon joining the Bank in 2021, he first served as Austin Market President and later as Central Texas Regional President. Prior to joining Southside, he was with Frost Bank, a regional bank in Texas for 26 years, of which he served as an Executive Vice President for 10 years. Mr. Donahoe is a graduate of Texas Tech University with over 30 years of commercial banking experience. Mr. Donahoe previously served as Board Chair of both the Health Alliance for Austin Musicians and the Real Estate Council of Austin.

Ms. Shamburger currently serves as Chief Financial Officer (CFO) of the Company and the Bank, a position she has held since 2016. She is also an advisory director of the Bank. Ms. Shamburger served as Executive Vice President and Chief Accounting Officer from 2011 until April 2016. Ms. Shamburger joined the Bank in 1982 and has over 40 years of accounting experience. Ms. Shamburger is a graduate of the University of Texas at Tyler. Ms. Shamburger provides oversight to the Bank's funds management and investor relations. She is also responsible for the oversight of regulatory and Securities and Exchange Commission (SEC) reporting as well as the daily accounting practices of the Company and the Bank. She currently serves as a member of the Board of Directors of Alzheimer's Alliance of Smith County. Ms. Shamburger is a member of the American Institute of Certified Public Accountants, the TXCPA and the East Texas Chapter of the TXCPA.

Mr. Burchard currently serves as Chief Lending Officer (CLO) of the Company and of the Bank, a position he has held since June 2024, as well as advisory director of the Bank. He previously served as Senior Executive Vice President upon joining the Company in 2023. He previously served at Texas Capital Bank from 2018 to 2023, including positions as Head of Commercial Real Estate and Head of Real Estate (Commercial Real Estate and Homebuilding). In his current role, he is responsible for oversight of all lending activities in all of the Company's market areas. He has over 40 years of commercial banking experience.

Mr. Arnold currently serves as Chief Credit Officer (CCO) of the Company and of the Bank, as well as advisory director of the Bank. He previously served as Executive Vice President and Senior Credit Officer of the Bank from December 2014 until March 2019. He joined the Bank in December 2014, upon the acquisition of OmniAmerican Bank, where he served as Senior Executive Vice President and Chief Credit Officer. Mr. Arnold is a graduate of The University of Texas at Arlington and has over 40 years' experience in the banking and financial services industry. He serves on the Board of Directors for William Mann Community Development Corporation and is actively involved in Meals on Wheels of Tarrant County.

Mr. Shands retired on April 30, 2020 as Southside Regional President, East Texas, a role he held since the acquisition of Diboll State Bancshares, Inc. by the Company on November 30, 2017. He previously served as President and CEO of First Bank & Trust East Texas for 26 years and was Treasurer of Temple Inland Inc., a major manufacturer of corrugated packing and building products, with diversified banking and financial services operations. Mr. Shands served as Vice Chairman of the Finance Commission of Texas where he represented the banking industry for 8 years. He is a Trustee for the Marguerite Fairchild Foundation and previously served as a Trustee for the T.L.L. Temple Foundation. He is currently a director for Contractor's Supply Inc. He also served on the Board of Directors and was Past Chairman for CHI Memorial Health Center of East Texas, City of Lufkin 4B Economic Development and First Bank of Conroe, N.A.

Mr. Garrett is a residential and commercial real estate developer and has served as the President of Fair Oil Company, a Tyler based oil and gas exploration and production company, since 2002. Mr. Garrett is also President of the R. W. Fair Foundation and a member of the UT at Tyler Development Board. He is a former Chairman of the Board of Regents at Stephen F. Austin State University and a former member of the UT Tyler School of Medicine Admissions Committee. He is a past president of both the Tyler Area Builders Association and the Texas Association of Builders.

Ms. Anderson has a BBA with a major in accounting from Indiana University and has been a licensed CPA since 1976. She served as a director of OmniAmerican Bancorp from 1996 to December 17, 2014 and as independent Chairperson of the Board from May 2010 to December 17, 2014, when OmniAmerican Bancorp, Inc. (OmniAmerican) was acquired by the Company. She served for 24 years with Texas Health Resources as Senior Vice President and Chief Compliance Officer prior to retiring in January 2016. In that role, she had responsibilities for compliance, privacy, information security and enterprise risk management. Texas Health Resources is one of the largest nonprofit healthcare systems in the U.S. Her prior professional experience includes serving in various positions with the international accounting firm, PricewaterhouseCoopers from 1980 to 1991. Ms. Anderson served as the Treasurer for Arborlawn United Methodist Church Foundation for 30 years. Her memberships have included the American Institute of Certified Public Accountants, the Texas Society of Certified Public Accountants and the Health Care Compliance Association.

Dr. Calhoun currently serves as President of the University of North Texas Health Science Center and previously served as President of The University of Texas (UT) at Tyler from 2002 until his retirement in 2024. Dr. Calhoun started his medical career in Internal Medicine private practice and subsequently pursued his passion in academic medicine. He has served in academic medical leadership positions for over 40 years, in many different roles including Corporate Medical Director of UT Medical Branch at Galveston (UTMB) HealthCare Systems, Senior Vice President of Parkland Hospital, the Associate Dean of Clinical Affairs at the UT Southwestern Medical School and subsequently serving a combined 22 years as President of UT at Tyler and The UT Health Science Center at Tyler. Dr. Calhoun also previously served as chairman of the board of directors for the UT Health East Texas Health System, and on the executive committee of Teaching Hospitals of Texas and is the immediate Past Chair of the American Association of Medical Colleges Board of Directors. Dr. Calhoun has received numerous awards for his work and leadership in healthcare, public health, higher education delivery and community service, including the prestigious Doctor Luke Society and the T.B. Butler Citizen of the Year Award in 2021.

Mr. Smith has been the President and owner of PSI Production, Inc., a petroleum exploration and production company since 1985. He is a member of the Independent Petroleum Association of America and served as Northeast Texas Representative to the Board of Directors from 1999 to 2005. Mr. Smith is a managing member of Wildwood Environmental Credit Company, which serves as the conservation steward for over 40,000 acres of protected, high value ecosystems including the Pineywoods Mitigation Bank. Mr. Smith served on the Board of Trustees for All Saints Episcopal School of Tyler from 1994 to 2014, is a member of the Board of Trustees of the McCallie School in Chattanooga, TN., a former Chairman of the Board of CHRISTUS Trinity Mother Frances Health System and a member of the University of Texas at Tyler Engineering School Advisory Board.

Dr. Anderson was the founder of Dermatology Associates of Tyler and served as the medical director from 1996 to 2012. He then served as Chief Medical Officer for Oliver Street Dermatology from 2012 to 2016 and in the same role for U.S. Dermatology Partners until 2019. He is a graduate of Washington State University and Uniformed Services University of Health Sciences in Bethesda, Maryland. He is a published author with a number of publications, presentations and lectures to his credit.

Mr. Frailey is President of Alton L. Frailey & Associates, LLC, specializing in leadership development, community engagement, school board team building, and executive coaching. Mr. Frailey earned his bachelor's degree in Elementary Education and master's degree in Educational Administration from Stephen F. Austin State University. He received his superintendent certification from the University of Texas at Tyler. Mr. Frailey has been involved in education for 43 years, serving most recently as the past superintendent for Katy Independent School District, as well as one other district in Texas and one in Ohio. Mr. Frailey served as past chair of the Stephen F. Austin State University Board of Regents, president of the American Association of School Administrators, the Texas Association of School Administrators, and the Urban Superintendents Association of America, as well as chairman of the University Interscholastic League Legislative Council. He served on the boards of directors for the Katy Area Chamber of Commerce, Katy Area Economic Development Council, Junior Achievement of Southeast Texas, West Houston Association and The Bible Seminary. Mr. Frailey has received numerous honors and awards including Texas Music Educators Association Distinguished Administrator, Region 4 Administrator of the Year, Who's Who in Executives and Professionals, and the Trailblazer Award by South Dallas Business and Professional Women's Club, Inc.

Ms. Callan is a principal of Callan Consulting, which has provided sales management, insurance, managed care and healthcare related consulting services in the Dallas/Fort Worth area since 2001. She previously held executive management positions in Texas and Kentucky for regional and national insurance companies and owned an independent insurance agency in Lexington, Kentucky. She also served on the Board of Directors of OmniAmerican from 2006 to December 17, 2014, when OmniAmerican was acquired by the Company.

Ms. Dacus is president and owner of the Dacus Firm, a minority and female-owned law firm in Tyler, Texas. She has been practicing law since 1994, with a focus on commercial litigation. She is past president of the Tyler Area Chamber of Commerce, the Tyler Economic Development Council, and the CHRISTUS Northeast Texas Health System boards of directors. She served on the board of an East Texas bank for almost 5 years, where she served as a member of the Audit Committee and Chair of the Risk and Compliance Committee. Ms. Dacus holds the distinction of being the first Hispanic female to chair the boards of the Tyler Area Chamber, the Texas Bar Foundation and the Tyler Economic Development Council, among others. She has received numerous honors, including the T.B. Butler Distinguished Citizen Award, the Adelante Award from the Hispanic Business Alliance, and the Legacy of Service Award from Women in Tyler.

Mr. Jones is the CEO of Pro Star Rental, a multi-site equipment rental company in Texas, a spin-off of the Cassity Jones Companies in 2015 through Pro Star Capital LP, in which he serves as President and General Partner. Prior to the spin off, he served as the Chief Operating Officer of the Cassity Jones Companies, a portfolio of real estate supply and service companies, which included building material supply, flooring, commercial construction, and commercial real estate, from 2009 to 2015. Mr. Jones began his career in management consulting and financial valuation before joining Tenet Healthcare, where he held various management positions throughout Texas from 2002 to 2009, including Chief Operating Officer of Nacogdoches Medical Center. Mr. Jones has served on the boards of numerous organizations including: Vice Chair of the Christus Health Northeast Texas Region, Past Chair of Hospice of East Texas, Past Chair of the City of Tyler Planning and Zoning Commission and executive committee of The Texas Lyceum. He holds a BA in economics from Texas A&M University and an MBA from Harvard Business School.

Mr. McKinney is CEO and President of The Genecov Group, a real estate and oil & gas investment company based in Tyler, Texas, a position he has held since 2016. Prior to joining the Genecov Group in 2015, he served as a Partner at Gollob Morgan Peddy P.C., an East Texas public accounting firm, from 2013 to 2014, and held various senior positions with the accounting firm previously. Mr. McKinney currently serves as a member of the UT Health Tyler Board of Trustees, the UT Tyler Audit Committee and is a Past Chairman of the Tyler Economic Development Council. He is a graduate of Louisiana Tech University and a licensed Certified Public Accountant. Mr. McKinney will serve on the Company's Audit Committee and Risk Committee, and the Bank's Executive/Loan and Discount Committee and Compliance/IT/CRA Committee.

Ms. Martinez currently serves as Chief Risk Officer (CRO), of the Company and the Bank, a position she has held since September 2024. Prior to her current role, she served as Executive Vice President and Senior Loan Review Officer from 2012 to 2024. In her current role, she is responsible for enterprise risk management. Ms. Martinez obtained a BBA degree in Finance and Accounting from Texas A&M University. She joined Southside in 1999 and has over 28 years of banking and credit experience. Ms. Martinez currently serves on Moody's Community Banking Advisory Board and as Vice Chairman of the Texas A&M University Commercial Banking Program Board.

Ms. Davis currently serves as Chief Treasury Officer (CTO) of the Company and the Bank, a position she has held since September 2024. Prior to her current role, she served as Chief Risk Officer from 2016 to 2024; and as Senior Vice President and Investment Officer prior to that. Ms. Davis obtained her BBA degrees in Finance and Accounting from the University of Texas at Tyler, is a Certified Public Accountant and holds a Certified Enterprise Risk Professional certification from the American Bankers Association. She joined the Bank in 1999 and is responsible for investment accounting, funds management, liquidity and interest rate risk. Ms. Davis is a member of the American Institute of Certified Public Accountants, the Texas Society of Certified Public Accountants (TXCPA) and the East Texas Chapter of the TXCPA.

Mr. Green currently serves as Regional President, East Texas, of the Bank, a position he has held since 2020. Prior to his current role, he served as Executive Vice President, Commercial Banking from 2013 to 2020. In his current role, he is responsible for strategic planning, coordination and implementation of lending operations in the East and Southeast Texas markets. Mr. Green obtained his BBA from Baylor University and his Masters in Finance from The University of Texas at Dallas. He has over 20 years of commercial banking experience. Mr. Green currently serves as a member of the Board of Trustees of The Brook Hill School and is a member of the Board of Trustees of Willow Brook Country Club.

Ms. Anthony currently serves as Chief Banking Officer of the Bank, a position she has held since January 2024. She joined the Bank in 2017, upon the acquisition of Diboll State Bancshares, Inc, where she served as Chief Compliance Officer with First Bank and Trust East Texas. Prior to her current role, she served as Senior Vice President and Retail Market Manager of the Bank from 2017 until December 2023. In her current role, she is responsible for retail banking in all of the Company's regions. Ms. Anthony is a graduate of the University of West Alabama and has over 40 years of banking experience. She is involved with the Salvation Army, Angelina Chamber of Commerce and Leadership Alumni Association.

Ms. Pinkley currently serves as Chief Accounting Officer (CAO), of the Company and the Bank, a position she has held since September 2024. Prior to her current role, she served as Controller of the Company since 2010, and as an Executive Vice President since 2023. Ms. Pinkley earned a BBA degree in accounting from UT Tyler and has over 20 years of banking experience. In her current role, she is responsible for the oversight of accounting, accounts payable and payroll departments. Ms. Pinkley is a member of the American Institute of Certified Public Accountants, the TXCPA and the East Texas Chapter of the TXCPA. She previously served on the Finance Committee of the United Way of East Texas and the board of The Rock of Living Water Ministry.

Mr. Craddock currently serves as Chief Operating Officer (COO) of the Company and of the Bank, a position he has held since November 2025. Upon joining the Bank in 2024, he served as Executive Vice President and Associate Chief Operations Officer of the Bank from August 2024 to November 2025. He previously served at Q2, a digital banking solutions company, from 2011 to 2024, and most recently as Vice President of Premier Services at Q2, where his role included creating vision and strategy for business development and streamlining processes and systems to drive revenue growth and improve operational efficiencies. He also previously served in various information technology and bank operations roles with the Bank from 2002 to 2011. Mr. Craddock has over 20 years of experience in the banking industry.