# EDGAR Filing Document

**Accession Number:** 0000705432
**File Stem:** 0000705432-26-000093
**Filing Date:** 2026-5
**Character Count:** 16123
**Document Hash:** 31e832d81e06b51923fa7bc5c1d9d218
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000705432-26-000093.hdr.sgml**: 20260520

**ACCESSION NUMBER**: 0000705432-26-000093

**CONFORMED SUBMISSION TYPE**: 8-K

**PUBLIC DOCUMENT COUNT**: 13

**CONFORMED PERIOD OF REPORT**: 20260514

**ITEM INFORMATION**: Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year

**ITEM INFORMATION**: Submission of Matters to a Vote of Security Holders

**ITEM INFORMATION**: Financial Statements and Exhibits

**FILED AS OF DATE**: 20260520

**DATE AS OF CHANGE**: 20260520

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** SOUTHSIDE BANCSHARES INC
- **CENTRAL INDEX KEY:** 0000705432
- **STANDARD INDUSTRIAL CLASSIFICATION:** STATE COMMERCIAL BANKS [6022]
- **ORGANIZATION NAME:** 02 Finance
- **EIN:** 751848732
- **STATE OF INCORPORATION:** TX
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 8-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-42396
- **FILM NUMBER:** 261003870

**BUSINESS ADDRESS:**
- **STREET 1:** 1201 S BECKHAM
- **CITY:** TYLER
- **STATE:** TX
- **ZIP:** 75701
- **BUSINESS PHONE:** 9035317111

**MAIL ADDRESS:**
- **STREET 1:** 1201 S BECKHAM
- **CITY:** TYLER
- **STATE:** TX
- **ZIP:** 75701

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** SOBANK INC
- **DATE OF NAME CHANGE:** 19920703

?xml version='1.0' encoding='ASCII'? sbsi-20260514

**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**Washington, D.C. 20549**

FORM 8-K

**CURRENT REPORT**

**PURSUANT TO SECTION 13 OR 15(d)**

 **OF THE SECURITIES EXCHANGE ACT OF 1934**

May 14, 2026

**Date of Report (Date of earliest event reported)**

**Southside Bancshares, Inc.**

**(Exact Name of Registrant as Specified in its Charter)**

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| | | |
|:---|:---|:---|
| **Texas** | **001-42396** | **75-1848732** |
| (State or Other Jurisdiction of Incorporation) | (Commission File Number) | (IRS Employer Identification No.) |

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| | | | |
|:---|:---|:---|:---|
| **1201 S. Beckham Avenue,** | **Tyler,** | **TX** | **75701** |
| (Address of Principal Executive Offices) | (Address of Principal Executive Offices) | (Address of Principal Executive Offices) | (Zip Code) |

---

**Registrant's telephone number, including area code: (903) 531-7111** 

**NA** 

(Former Name or Former Address, if Changed Since Last Report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities Registered Pursuant to Section 12(b) of the Act:

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| | | |
|:---|:---|:---|
| **Title of each class** | **Trading Symbol** | **Name of each exchange on which registered** |
| Common stock, $1.25 par value | SBSI | New York Stock Exchange |
|  |  | NYSE Texas |

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| | | |
|:---|:---|:---|
| Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). | Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). | |
| | Emerging growth company | ☐ |
| If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. | If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. | ☐ |

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**Item 5.03. Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year.**

On May 14, 2026, Southside Bancshares, Inc. (the "Company") held its 2026 Annual Meeting of Shareholders (the "Annual Meeting"). At the Annual Meeting, the Company's shareholders approved an amendment to the Company's Restated Certificate of Formation (the "Charter Amendment") to authorize the issuance of up to 8,000,000 shares of flexible preferred stock. A detailed description of the Charter Amendment was set forth in Proposal Three in the Company's 2026 Proxy Statement, filed with the Securities and Exchange Commission on March 25, 2026, which description is incorporated herein by reference and is qualified in its entirety by reference to the full text of the Charter Amendment filed herewith as Exhibit 3.1. The Charter Amendment became effective upon its filing with the Secretary of State of the State of Texas on May 19, 2026.

**Item 5.07. Submission of Matters to a Vote of Security Holders.**

A total of 26,767,647 shares of the Company's common stock were represented in person or by proxy at the Annual Meeting, or 89.99%, of the 29,743,585 shares outstanding as of the record date, March 16, 2026. The Company's shareholders voted on four proposals at the Annual Meeting, as set forth below.

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| | | | |
|:---|:---|:---|:---|
| **Proposal 1 - Election of Directors** | | | |
| Shareholders approved the election of four directors to serve for three-year terms expiring at the 2029 Annual Meeting of Shareholders, one director to serve for a two-year term expiring at the 2028 Annual Meeting of Shareholders and one director to serve for a one-year term expiring at the 2027 Annual Meeting of Shareholders. Final results were as follows: | Shareholders approved the election of four directors to serve for three-year terms expiring at the 2029 Annual Meeting of Shareholders, one director to serve for a two-year term expiring at the 2028 Annual Meeting of Shareholders and one director to serve for a one-year term expiring at the 2027 Annual Meeting of Shareholders. Final results were as follows: | Shareholders approved the election of four directors to serve for three-year terms expiring at the 2029 Annual Meeting of Shareholders, one director to serve for a two-year term expiring at the 2028 Annual Meeting of Shareholders and one director to serve for a one-year term expiring at the 2027 Annual Meeting of Shareholders. Final results were as follows: | Shareholders approved the election of four directors to serve for three-year terms expiring at the 2029 Annual Meeting of Shareholders, one director to serve for a two-year term expiring at the 2028 Annual Meeting of Shareholders and one director to serve for a one-year term expiring at the 2027 Annual Meeting of Shareholders. Final results were as follows: |
| **Term Expiring at the 2029 Annual Meeting:** | **For** | **Withheld** | **Broker<br>Non-Votes** |
| Lawrence L. Anderson, M.D. | 23379541 | 629316 | 2758790 |
| Keith M. Donahoe | 23483743 | 525114 | 2758790 |
| H. J. Shands, III | 23040796 | 968061 | 2758790 |
| Preston L. Smith | 22770922 | 1237935 | 2758790 |
| **Term Expiring at the 2028 Annual Meeting:** | **Term Expiring at the 2028 Annual Meeting:** | **Term Expiring at the 2028 Annual Meeting:** | **Term Expiring at the 2028 Annual Meeting:** |
| Jeb W. Jones | 23536608 | 472249 | 2758790 |
| **Term Expiring at the 2027 Annual Meeting:** | **Term Expiring at the 2027 Annual Meeting:** | **Term Expiring at the 2027 Annual Meeting:** | **Term Expiring at the 2027 Annual Meeting:** |
| Raymond C. McKinney, CPA | 23508922 | 499935 | 2758790 |

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| | | | |
|:---|:---|:---|:---|
| **Proposal 2 - Say-on-Pay Vote** | **Proposal 2 - Say-on-Pay Vote** | | |
| Shareholders approved, on a non-binding advisory basis, the compensation of the Company's named executive officers, as described in the Company's proxy statement. Final results were as follows: | Shareholders approved, on a non-binding advisory basis, the compensation of the Company's named executive officers, as described in the Company's proxy statement. Final results were as follows: | Shareholders approved, on a non-binding advisory basis, the compensation of the Company's named executive officers, as described in the Company's proxy statement. Final results were as follows: | Shareholders approved, on a non-binding advisory basis, the compensation of the Company's named executive officers, as described in the Company's proxy statement. Final results were as follows: |
| **For** | **Against** | **Abstain** | **Broker<br>Non-Votes** |
| 22322893 | 1546713 | 139251 | 2758790 |
| **Proposal 3 - Approval of Amendment to the Company's Restated Certificate of Formation** | **Proposal 3 - Approval of Amendment to the Company's Restated Certificate of Formation** | **Proposal 3 - Approval of Amendment to the Company's Restated Certificate of Formation** | **Proposal 3 - Approval of Amendment to the Company's Restated Certificate of Formation** |
| Shareholders approved an amendment to the Company's Restated Certificate of Formation to authorize the issuance of up to 8,000,000 shares of flexible preferred stock, as described in the Company's 2026 Proxy Statement. Final results were as follows: | Shareholders approved an amendment to the Company's Restated Certificate of Formation to authorize the issuance of up to 8,000,000 shares of flexible preferred stock, as described in the Company's 2026 Proxy Statement. Final results were as follows: | Shareholders approved an amendment to the Company's Restated Certificate of Formation to authorize the issuance of up to 8,000,000 shares of flexible preferred stock, as described in the Company's 2026 Proxy Statement. Final results were as follows: | Shareholders approved an amendment to the Company's Restated Certificate of Formation to authorize the issuance of up to 8,000,000 shares of flexible preferred stock, as described in the Company's 2026 Proxy Statement. Final results were as follows: |
| **For** | **Against** | **Abstain** | **Broker<br>Non-Votes** |
| 21818160 | 2013911 | 176786 | 2758790 |
| **Proposal 4 - Ratification of Appointment of Independent Registered Certified Public Accounting Firm** | **Proposal 4 - Ratification of Appointment of Independent Registered Certified Public Accounting Firm** | **Proposal 4 - Ratification of Appointment of Independent Registered Certified Public Accounting Firm** | **Proposal 4 - Ratification of Appointment of Independent Registered Certified Public Accounting Firm** |
| Shareholders ratified the appointment by the Company's Audit Committee of Ernst & Young LLP to serve as the Company's independent registered certified public accounting firm for the year ending December 31, 2026. Final results were as follows: | Shareholders ratified the appointment by the Company's Audit Committee of Ernst & Young LLP to serve as the Company's independent registered certified public accounting firm for the year ending December 31, 2026. Final results were as follows: | Shareholders ratified the appointment by the Company's Audit Committee of Ernst & Young LLP to serve as the Company's independent registered certified public accounting firm for the year ending December 31, 2026. Final results were as follows: | Shareholders ratified the appointment by the Company's Audit Committee of Ernst & Young LLP to serve as the Company's independent registered certified public accounting firm for the year ending December 31, 2026. Final results were as follows: |
| **For** | **Against** | **Abstain** | **Broker<br>Non-Votes** |
| 26404321 | 206509 | 156817 | N/A |

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**Item 9.01. Financial Statements and Exhibits.**

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(D)Exhibits. The following materials are furnished as exhibits to this Current Report on Form 8-K:

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| | |
|:---|:---|
| **Exhibit**<br>**<u>Number</u>** | **<u>Description of Exhibit</u>** |
| 3.1 | <u>[First Amendment to Restated Certificate of Formation of Southside Bancshares, Inc.](firstamendmenttorestatedce.htm)</u> |
| 104 | Cover Page Interactive Data File (embedded within the Inline XBRL document) |

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SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

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| | | |
|:---|:---|:---|
| | | **Southside Bancshares, Inc.** |
| Date: May 20, 2026 | By: | /s/ JULIE N. SHAMBURGER |
|  |  | Julie N. Shamburger, CPA |
|  |  | Chief Financial Officer |
|  |  | (Principal Financial Officer) |

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## Exhibit 3.1

Exhibit 3.1

**FIRST AMENDMENT**

**TO**

**RESTATED**

**CERTIFICATE OF FORMATION**

**OF**

**SOUTHSIDE BANCSHARES, INC.**

Pursuant to the Texas Business Organizations Code (the "<u>TBOC</u>"), Southside Bancshares, Inc., a Texas corporation (the "<u>Corporation</u>"), hereby adopts this First Amendment to Restated Certificate of Formation (this "<u>Amendment</u>") as set forth below:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1.The name of the Corporation is Southside Bancshares, Inc., a for-profit corporation.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2.The Corporation was formed as a for-profit corporation on August 11, 1982, and issued file number 61819600 by the Secretary of State of the State of Texas.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;3.Article Four is amended and restated in its entirety to read as set forth below:

The total number of shares of capital stock that the Corporation shall have authority to issue is 88,000,000, consisting of: (i) 80,000,000 shares, $1.25 par value per share, of common stock ("<u>Common Stock</u>") and (ii) 8,000,000 shares, no par value per share, of preferred stock ("<u>Preferred Stock</u>").

The Preferred Stock may be issued from time to time in one or more series pursuant to a resolution or resolutions providing for such issue duly adopted by the Board of Directors (authority to do so being hereby expressly vested in the Board of Directors). The Board of Directors is further authorized, subject to limitations prescribed by law, to fix by resolution or resolutions and to set forth in a certification of designations filed pursuant to the Texas Business Organizations Code the designations, preferences, limitations, and relative rights of any wholly unissued series of Preferred Stock, including without limitation dividend rights, dividend rate, conversion rights, voting rights, rights and terms of redemption (including sinking fund provisions), redemption price or prices, and liquidation preferences of any such series, and the number of shares constituting any such series and the designation thereof, or any of the foregoing.

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4.This Amendment has been made in accordance with the provisions of the TBOC. This Amendment has been approved in the manner required by the provisions of the TBOC and the governing documents of the Corporation.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5.This Amendment shall become effective when filed by the Secretary of State of the State of Texas.

The undersigned signs this document subject to the penalties imposed by law for the submission of a materially false or fraudulent instrument and certifies under penalty of perjury that the undersigned is authorized under the provisions of law governing the entity to execute the filing instrument.

**SOUTHSIDE BANCSHARES, INC.**, a Texas corporation

By:&nbsp;&nbsp;&nbsp;&nbsp;<u>/s/ Keith Donahoe&nbsp;&nbsp;&nbsp;&nbsp;</u>

KEITH DONAHOE, President and Chief Executive Officer