First Financial EVP awarded 2,370 deferred stock units

Q: Did John Ruzicka buy or sell FFIN shares on the open market?

No open-market buys or sells were reported. The transactions reflect equity awards vesting and an internal deferral election, including a disposition entry back to the issuer, rather than purchases or sales through the public market.

FIRST FINANCIAL BANKSHARES INC executive John James Ruzicka Jr reported routine equity compensation vesting and deferral.

Filing Impact

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Form Type

Rhea-AI Filing Summary

FIRST FINANCIAL BANKSHARES INC executive John James Ruzicka Jr reported routine equity compensation vesting and deferral. On the vesting of previously granted performance stock units, he received 2,370 shares of common stock and simultaneously deferred that amount into 2,370 deferred stock units under the company’s Supplemental Executive Retirement Plan.

The Form 4 shows a grant of 2,370 deferred stock units and a matching grant and disposition of 2,370 common shares back to the issuer to reflect the deferral choice. After these entries, he holds 11,986 shares of common stock and 5,837 deferred stock units directly.

Insider Trade Summary

3 transactions reported

Mixed 3 txns

Insider Ruzicka John James Jr

Role EVP, Chief Banking Ops Officer

Type	Security	Shares	Price	Value
Grant/Award	Deferred Stock Units	2,370	$0.00	$0.00
Grant/Award	Common Stock	2,370	$0.00	$0.00
Disposition	Common Stock	2,370	$0.00	$0.00

Holdings After Transaction: Deferred Stock Units — 5,837 contracts (Direct); Common Stock — 11,986 shares (Direct)

Footnotes (2)

F1. Represents shares of common stock issued upon the vesting of outstanding performance stock units that were subject to performance criteria other than the issuer's stock price.
F2. In connection with the vesting of performance stock units previously granted on August 16, 2023, Mr. Ruzicka's receipt of 2,370 shares of common stock was deferred resulting in Mr. Ruzicka's receipt instead of 2,370 shares of deferred stock units into the First Financial Bankshares, Inc. Supplemental Executive Retirement Plan, as amended and restated effective July 26, 2022 (the "SERP"). Mr. Ruzicka is therefore reporting the disposition of 2,370 performance stock units in exchange for an equal number of shares of deferred stock units under the SERP, which are payable upon Mr. Ruzicka's termination of employment.

FAQ

What did FFIN executive John Ruzicka report in this Form 4 filing?

He reported routine equity compensation vesting and deferral. 2,370 performance stock units vested into common stock, which he then deferred into 2,370 deferred stock units under the Supplemental Executive Retirement Plan, resulting in updated common and deferred stock unit holdings.

Did John Ruzicka buy or sell FFIN shares on the open market?

No open-market buys or sells were reported. The transactions reflect equity awards vesting and an internal deferral election, including a disposition entry back to the issuer, rather than purchases or sales through the public market.

How many FFIN shares and deferred stock units does John Ruzicka hold after the transactions?

He holds 11,986 common shares and 5,837 deferred stock units. These post-transaction balances come from the Form 4, which shows the updated totals following the vesting of 2,370 performance stock units and their deferral into deferred stock units.

What is the significance of the 2,370 deferred stock units reported for FFIN?

The 2,370 deferred stock units represent deferred compensation. They were received instead of taking 2,370 vested common shares immediately, and are credited under the Supplemental Executive Retirement Plan to be paid upon termination of employment.

Why does the Form 4 show both an acquisition and disposition of 2,370 FFIN common shares?

This reflects the deferral of vested performance stock units. 2,370 performance stock units vested into common stock, then the same amount was effectively returned to the issuer as those shares were converted into 2,370 deferred stock units under the retirement plan.

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Accepted by SEC EDGAR 03/17/2026 - 05:12 PM

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^*

Ruzicka John James Jr

(Last)

(First)

(Middle)

P O BOX 701

(Street)

ABILENE

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)
	EVP, Chief Banking Ops Officer

3. Date of Earliest Transaction (Month/Day/Year)
03/13/2026

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	03/13/2026		A		2,370⁽¹⁾	A	⁽¹⁾	14,356	D
Common Stock	03/13/2026		D		2,370⁽²⁾	D	⁽²⁾	11,986	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)
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)
Deferred Stock Units	⁽²⁾	03/13/2026		A		2,370		⁽²⁾	⁽²⁾	Common Stock	2,370	⁽²⁾	5,837	D

Explanation of Responses:

1. Represents shares of common stock issued upon the vesting of outstanding performance stock units that were subject to performance criteria other than the issuer's stock price.

2. In connection with the vesting of performance stock units previously granted on August 16, 2023, Mr. Ruzicka's receipt of 2,370 shares of common stock was deferred resulting in Mr. Ruzicka's receipt instead of 2,370 shares of deferred stock units into the First Financial Bankshares, Inc. Supplemental Executive Retirement Plan, as amended and restated effective July 26, 2022 (the "SERP"). Mr. Ruzicka is therefore reporting the disposition of 2,370 performance stock units in exchange for an equal number of shares of deferred stock units under the SERP, which are payable upon Mr. Ruzicka's termination of employment.

	By: Michelle S. Hickox Attorney in Fact for John J. Ruzicka, Jr.	03/17/2026
	** 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.
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Source: View Original Filing on SEC EDGAR