Buy4

FIRST FINANCIAL BANKSHARES INC

FFIN

Total Value

$104.0K

Net $104.0K bought

Filing Date

Aug 20, 2026

1 transaction

Purchases

$104.0K

1 transaction

Trade Summary

On Aug 18, 2026, Denny Michael B., Insider, purchased $104.0K of FIRST FINANCIAL BANKSHARES INC (FFIN) across 1 transaction. The filing covers Common Stock and reflects net buying of $104.0K. Reported prices ranged from $34.66. Insider transactions are sourced from SEC Form 4 disclosures and should be reviewed alongside company fundamentals and the insider's broader trading history.

Price at the Time of the Trade

FFIN daily price with the insider's purchase marked at $34.66.

Bought in the upper half of the 6-month range · about level with today's price.

Price data is delayed and provided for context only — not investment advice.

Insider Information

Name: Denny Michael B.
Role: Insider
Location: ABILENE, TX

Filing Details

Filing Date: Aug 20, 2026
Transaction Date: Aug 18, 2026
Accession Number: 0001193125-26-358683
Form Type: 4
Net Trading Amount: $104.0K

Non-Derivative Transactions

Date	Security	Shares	Price	Type	Value
Aug 18, 2026	Common Stock	3,000	$34.66	Purchase	$104.0K

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Footnotes

(F1)The reporting person executed a trade order through a broker-dealer which resulted in multiple same day, same way open market purchases, with prices ranging from $34.65 to $34.67 per share, inclusive. The reporting person has reported these purchases on an aggregate basis using the weighted average price for the transactions. The reporting person undertakes to provide to the Company, any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price.
(F2)This indirect ownership represents shares owned by a limited partnership of which the reporting person and his spouse are beneficial owners of the common stock owned by the limited partnership.

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^*

Denny Michael B.

(Last)

(First)

(Middle)

1202 ELMWOOD DR

(Street)

ABILENE

79605

(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)

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

3. Date of Earliest Transaction (Month/Day/Year)
08/18/2026

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	08/18/2026		P		3,000	A	$34.66⁽¹⁾	6,500	I	By IRA
Common Stock								107,350	I	By Limited Partnership⁽²⁾

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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

Explanation of Responses:

1. The reporting person executed a trade order through a broker-dealer which resulted in multiple same day, same way open market purchases, with prices ranging from $34.65 to $34.67 per share, inclusive. The reporting person has reported these purchases on an aggregate basis using the weighted average price for the transactions. The reporting person undertakes to provide to the Company, any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price.

2. This indirect ownership represents shares owned by a limited partnership of which the reporting person and his spouse are beneficial owners of the common stock owned by the limited partnership.

	Michelle S. Hickox Attorney in Fact for Michael B. Denny	08/20/2026
	** 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.

Form 4 as rendered by the SEC from accession 0001193125-26-358683.

FIRST FINANCIAL BANKSHARES INC

Trade Summary

Price at the Time of the Trade

Company Information

Insider Information

Filing Details

Non-Derivative Transactions

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Footnotes

SEC Form 4

SEC Filing

Price at the Time of the Trade

SEC Form 4