Ronald D. Butler II - 14 Aug 2026 Form 4 Insider Report for FIRST FINANCIAL BANKSHARES INC (FFIN)

Reporting relationship: EVP/CAO
Issuer ticker: FFIN
Reported as of: 14 Aug 2026
Net transaction value: -$524,250
SEC form: 4
Accepted by SEC: 18 Aug 2026, 14:10:10 UTC
Prior SEC filing: 17 Mar 2026
Source filing: View source filing
Reporting owner signature: By: Michelle S. Hickox Attorney in Fact for Ronald D. Butler II

Key filing fact

Ronald D. Butler II filed Form 4 for FIRST FINANCIAL BANKSHARES INC (FFIN) on 18 Aug 2026.

Key facts

This page summarizes Ronald D. Butler II's Form 4 filing for FIRST FINANCIAL BANKSHARES INC (FFIN).
7 reported transactions and 3 derivative rows are listed below.
Accepted by SEC: 18 Aug 2026, 14:10.

Change

Previous filing in this sequence was filed on 17 Mar 2026.
Current net transaction value: -$524,250.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001554713 Primary reporting owner

Butler Ronald David II

Relationship: EVP/CAO
Address: P. O. BOX 701, ABILENE
Signature: By: Michelle S. Hickox Attorney in Fact for Ronald D. Butler II
Signature date: 18 Aug 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

FFIN transaction

Common Stock

Disposed to Issuer

Transaction value
Shares: -2,375
Change %: -1.4%
Price
Shares after: 168,577
Date: 14 Aug 2026
Ownership: Direct
Footnotes: F1

FFIN transaction

Common Stock

Disposed to Issuer

Transaction value
Shares: -1,354
Change %: -0.8%
Price
Shares after: 167,223
Date: 16 Aug 2026
Ownership: Direct
Footnotes: F2

FFIN transaction

Common Stock

Sale

Transaction value: $524,250
Shares: -15,000
Change %: -9%
Price: $34.95
Shares after: 152,223
Date: 17 Aug 2026
Ownership: Direct

FFIN transaction

Common Stock

Options Exercise

Transaction value
Shares: +5,000
Change %: +3.3%
Price: $21.18^*
Shares after: 157,223
Date: 17 Aug 2026
Ownership: Direct

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

FFIN transaction Derivative

Deferred Stock Units

Award

Transaction value
Shares: +2,375
Change %: +17%
Price
Shares after: 16,637
Date: 14 Aug 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 2,375
Exercise price
Footnotes: F1

FFIN transaction Derivative

Deferred Stock Unit

Award

Transaction value
Shares: +1,354
Change %: +8.1%
Price
Shares after: 17,991
Date: 16 Aug 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 1,354
Exercise price
Footnotes: F2

FFIN transaction Derivative

Employee Stock Option, Right to Buy

Options Exercise

Transaction value
Shares: -5,000
Change %: -25%
Price: $21.18^*
Shares after: 15,000
Date: 17 Aug 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 5,000
Exercise price: $21.18

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 2 footnotes

Footnote F1

In connection with the vesting on August 14, 2026, of 2,375 restricted stock units previously granted to the reporting person, the reporting person's receipt of 2,375 shares of common stock was deferred resulting in the reporting person's receipt instead of 2,375 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 2,375 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.

Footnote F2

In connection with the vesting on August 16, 2026, of 1,354 restricted stock units previously granted to the reporting person, the reporting person's receipt of 1,354 shares of common stock was deferred resulting in the reporting person's receipt instead of 1,354 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 1,354 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.