[Form 4] Southside Bancshares, Inc. Insider Trading Activity

Rhea-AI Filing Summary

Anne Martinez, Chief Risk Officer of Southside Bancshares, Inc. (SBSI), reported a non-derivative acquisition on 09/04/2025 converting 29 dividend-equivalent rights into common stock at no cash price, reflecting dividend equivalents paid on restricted stock units. After the reported transaction, Ms. Martinez directly beneficially owns 6,337 shares of SBSI common stock.

She also discloses indirect holdings of 2,965 shares in a 401(k), 2,548 shares in an ESOP, and 303 shares in a spouse IRA. The Form 4 was signed by an attorney-in-fact on 09/08/2025. The filing records the transaction as an issuance tied to dividend equivalents on RSUs and provides no information on any derivative instruments or cash purchases.

Positive

• Timely disclosure of insider transaction with attorney-in-fact signature dated 09/08/2025
• Clear identification of reporting person and role as CRO
• Specific breakdown of direct and indirect holdings (6,337 direct; 2,965 401k; 2,548 ESOP; 303 spouse IRA)

Negative

• None.

Insights

Securities Analyst

TL;DR: Routine insider conversion of dividend equivalents into 29 shares; disclosure increases transparency but appears non-material.

The Form 4 shows a small, non-cash issuance of 29 shares as dividend equivalents on RSUs, bringing direct ownership to 6,337 shares. This type of entry is typically a bookkeeping conversion tied to equity compensation rather than an active market purchase or sale. No derivative positions or priced transactions are reported here, and indirect retirement-related holdings are separately disclosed.

Corporate Governance Expert

TL;DR: Proper Section 16 reporting of equity compensation-related issuance; signatures and role are clearly disclosed.

The filing identifies the reporting person as the issuer's CRO and includes an attorney-in-fact signature dated 09/08/2025. The report documents the nature of the shares (dividend equivalent rights on RSUs) and itemizes direct and indirect holdings (401k, ESOP, spouse IRA). From a governance standpoint, the Form 4 meets standard disclosure expectations for insider equity conversions.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Martinez Anne

(Last) (First) (Middle)

1201 S. BECKHAM AVE

(Street)

TYLER TX 75701

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
SOUTHSIDE BANCSHARES INC [ SBSI ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	CRO

3. Date of Earliest Transaction (Month/Day/Year)
09/04/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	09/04/2025		A		29(1)	A	$0(1)	6,337	D
Common Stock								2,965(2)	I	401k
Common Stock								2,548(3)	I	ESOP
Common Stock								303	I	Spouse IRA

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Reflects dividend equivalent rights received pursuant to a cash dividend on RSUs held by the reporting person. Dividend equivalent rights are subject to the same terms and conditions as the underlying RSUs.

2. Includes shares acquired under the company's Dividend Reinvestment Program and shares acquired through monthly payroll contributions.

3. Includes shares acquired under the Company's Dividend Reinvestment Program.

Remarks:

	Lindsey Bibby Bailes, attorney in fact	09/08/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What did Anne Martinez (SBSI) report on Form 4?

She reported the non-cash acquisition of 29 common shares on 09/04/2025 representing dividend-equivalent rights on RSUs.

How many SBSI shares does Anne Martinez directly own after the transaction?

She directly beneficially owns 6,337 shares following the reported transaction.

Were any cash purchases or sales reported on this Form 4 for SBSI?

No priced purchases or sales are reported; the 29 shares were issued at $0 as dividend equivalents.

Does the filing disclose indirect holdings for the reporting person?

Yes; the filing discloses 2,965 shares in a 401(k), 2,548 shares in an ESOP, and 303 shares in a spouse IRA.

Who signed the Form 4 for the reporting person and when?

The form was signed by Lindsey Bibby Bailes, attorney-in-fact on 09/08/2025.

Is there any information about derivative securities in this filing?

No derivative securities or related transactions are reported in Table II of this Form 4.