[Form 4] First Financial Bankshares Inc Insider Trading Activity

Rhea-AI Filing Summary

First Financial Bankshares, Inc. (FFIN) reporting person T. Luke Longhofer, Executive Vice President and director, reported a non‑derivative disposition and a corresponding derivative acquisition tied to vesting on 08/16/2025. On that date 1,077 restricted stock units vested and were exchanged for 1,077 deferred stock units under the company’s Supplemental Executive Retirement Plan (SERP), resulting in a reported disposition of 1,077 restricted stock units and an acquisition of 1,077 deferred stock units payable upon termination. Following the transaction Longhofer beneficially owns 38,830 shares of common stock and 4,845 deferred stock units (reported as indirect ownership).

Insights

Financial Analyst

TL;DR: Routine executive RSU vesting converted to deferred retirement units; no immediate change in common share count held.

This Form 4 documents a common, administrative change: 1,077 restricted stock units vested and were deferred into 1,077 deferred stock units under the SERP on 08/16/2025. The exchange shifts economic timing of receipt to post‑employment payout rather than immediate share delivery. Reported beneficial ownership after the transaction is 38,830 common shares and 4,845 deferred units. There is no indication of open‑market purchases or sales for cash; the transaction is an internal deferral.

Corporate Governance Expert

TL;DR: Governance action reflects use of SERP to defer equity compensation; procedural disclosure appears complete.

The filing discloses that the reporting person opted (or contractually received) a deferral upon RSU vesting into the company’s amended and restated SERP effective July 26, 2022. The Form 4 shows proper reporting of a disposition of RSUs and acquisition of deferred stock units, including quantities and post‑transaction holdings. No material governance concerns or departures are stated within the filing itself.

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

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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^*

Longhofer T. Luke

(Last) (First) (Middle)

P O BOX 701

(Street)

ABILENE TX 79604

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
FIRST FINANCIAL BANKSHARES INC [ FFIN ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Executive Vice President

3. Date of Earliest Transaction (Month/Day/Year)
08/16/2025

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	08/16/2025		D		1,077(1)	D	(1)	38,830	D

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
Deferred Stock Units	(1)	08/16/2025		A		1,077		(1)	(1)	Common Stock	1,077	(1)	4,845	D

Explanation of Responses:

1. In connection with the vesting on August 16, 2025, of 1,077 restricted stock units previously granted to the reporting person, the reporting person's receipt of 1,077 shares of common stock was deferred resulting in the reporting person's receipt instead of 1,077 shares of deferred stock units into the First Financial Bankshares, Inc. Supplemental Executive Retirement Plan, as amended and restated effected July 26, 2022 (the "SERP"). The reporting person is therefore reporting the disposition of 1,077 restricted stock units in exchange for an equal number of deferred stock units under the SERP, which are payable upon the reporting person's termination.

	By: Michelle S. Hickox Attorney in Fact for T. Luke Longhofer	08/19/2025
	** 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.
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FAQ

What transaction did T. Luke Longhofer report on Form 4 for FFIN?

The filing reports that on 08/16/2025 1,077 restricted stock units vested and were exchanged for 1,077 deferred stock units under the company’s SERP.

How many common shares does the reporting person beneficially own after the transaction?

After the reported transaction the reporting person beneficially owns 38,830 shares of common stock and 4,845 deferred stock units.

Were any shares sold for cash in this Form 4 filing for FFIN?

No; the filing shows a disposition of restricted stock units in exchange for deferred stock units, not a sale for cash.

What plan governs the deferred stock units received by the reporting person?

The deferred stock units were issued under the First Financial Bankshares, Inc. Supplemental Executive Retirement Plan (SERP), as amended and restated effective July 26, 2022.

When was the Form 4 signed and who signed it?

The Form 4 was signed on 08/19/2025 by Michelle S. Hickox as Attorney in Fact for T. Luke Longhofer.