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SOUTHSIDE BANCSHARES INC

For the period ended May 14, 2026. Filed Mar 25, 2026.

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About this filing

What shareholders are asked to vote on at a company's meeting. It is where to find what directors and top executives are paid, and who owns the most shares.

May 14, 2026 · Filed Mar 25, 2026

SBSI$34.08-0.8%Stored close · as of Nov 6, 2026
See the whole filing, with its images and exhibits
Contents

INFORMATION REQUIRED IN PROXY STATEMENT

SCHEDULE 14A INFORMATION

Proxy Statement Pursuant to Section 14(a) of

the Securities Exchange Act of 1934

Filed by the Registrantx
Filed by a Party other than the Registrant¨

Check the appropriate box:

oPreliminary Proxy Statement
oConfidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))
xDefinitive Proxy Statement
oDefinitive Additional Materials
oSoliciting Material Pursuant to Sec.240.14a-12

SOUTHSIDE BANCSHARES, INC.

(Name of Registrant as Specified In Its Charter)

N/A

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

Payment of Filing Fee (Check all boxes that apply):

xNo fee required.
¨Fee paid previously with preliminary materials.
¨Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11.
NOTICE OF ANNUAL MEETING OF SHAREHOLDERSi
PROXY STATEMENT FOR THE ANNUAL MEETING OF SHAREHOLDERS1
VOTING OF PROXY1
REVOCABILITY OF PROXY2
PERSONS MAKING THE SOLICITATION2
RECORD DATE AND OUTSTANDING SHARES2
QUORUM, VOTING RIGHTS AND PROCEDURES2
EFFECT OF WITHHOLD VOTES, ABSTENTIONS AND BROKER NON-VOTES3
PROPOSAL 1 – ELECTION OF DIRECTORS3
INFORMATION ABOUT OUR DIRECTORS, NOMINEES AND EXECUTIVE OFFICERS4
CORPORATE RESPONSIBILITY10
CORPORATE GOVERNANCE12
BOARD COMMITTEES14
DIRECTOR COMPENSATION18
2025 Director Compensation Table19
DIRECTOR STOCK OWNERSHIP POLICY20
SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS21
COMPENSATION COMMITTEE REPORT23
COMPENSATION DISCUSSION AND ANALYSIS23
EXECUTIVE COMPENSATION30
Summary Compensation Table30
2025 All Other Compensation Table31
2025 Grants of Plan-Based Awards33
Outstanding Equity Awards at 2025 Fiscal Year End34
2025 Option Exercises and Stock Vested35
2025 Pension Benefits36
Potential Payments Upon Termination or Change in Control38
Equity Compensation Plan Information42
PAY VERSUS PERFORMANCE43
Pay Versus Performance Table43
Compensation Actually Paid Table44
PROPOSAL 2 – NON-BINDING ADVISORY VOTE ON EXECUTIVE COMPENSATION47
PROPOSAL 3 – AMENDMENT TO THE RESTATED CERTIFICATE OF FORMATION TO CREATE FLEXIBLE PREFERRED STOCK48
COMPENSATION COMMITTEE INTERLOCKS AND INSIDER PARTICIPATION50
TRANSACTIONS WITH DIRECTORS, OFFICERS AND ASSOCIATES50
DELINQUENT SECTION 16(a) REPORTS50
AUDIT COMMITTEE REPORT51
INDEPENDENT REGISTERED CERTIFIED PUBLIC ACCOUNTING FIRM52
PROPOSAL 4 – RATIFICATION OF APPOINTMENT OF INDEPENDENT REGISTERED CERTIFIED PUBLIC ACCOUNTING FIRM52
SHAREHOLDER PROPOSALS53
HOUSEHOLDING53
GENERAL53
APPENDIX
PROXY CARD
ContentsView on SEC.gov

The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.