Ronald D. Butler II - 16 Aug 2025 Form 4 Insider Report for FIRST FINANCIAL BANKSHARES INC (FFIN)

Role: CAO
Signature: By: Michelle S. Hickox Attorney in Fact for Ronald D. Butler II
Issuer symbol: FFIN
Transactions as of: 16 Aug 2025
Net transactions value: $0
Form type: 4
Filing time: 19 Aug 2025, 15:46:55 UTC
Previous filing: 18 Aug 2025
Next filing: 25 Nov 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Butler Ronald David II	CAO	P. O. BOX 701, ABILENE	By: Michelle S. Hickox Attorney in Fact for Ronald D. Butler II	19 Aug 2025	0001554713

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	FFIN	Common Stock	Disposed to Issuer		-1,919	-1.1%		172,131	16 Aug 2025	Direct	F1

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	FFIN	Deferred Stock Unit	Award		+1,919	+31%		8,168	16 Aug 2025	Common Stock	1,919		Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	In connection with the vesting on August 16, 2025, of 1,919 restricted stock units previously granted to the reporting person, the reporting person's receipt of 1,919 shares of common stock was deferred resulting in the reporting person's receipt instead of 1,919 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 1,919 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.

Content

In connection with the vesting on August 16, 2025, of 1,919 restricted stock units previously granted to the reporting person, the reporting person's receipt of 1,919 shares of common stock was deferred resulting in the reporting person's receipt instead of 1,919 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 1,919 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.