F. Scott Dueser - 14 Aug 2026 Form 4 Insider Report for FIRST FINANCIAL BANKSHARES INC (FFIN)

Reporting relationship: Executive Chairman, Director
Issuer ticker: FFIN
Reported as of: 14 Aug 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 18 Aug 2026, 13:54:12 UTC
Prior SEC filing: 17 Dec 2025
Source filing: View source filing
Reporting owner signature: By: Michelle S. Hickox Attorney in Fact for F. Scott Dueser

Key filing fact

F. Scott Dueser filed Form 4 for FIRST FINANCIAL BANKSHARES INC (FFIN) on 18 Aug 2026.

Key facts

This page summarizes F. Scott Dueser's Form 4 filing for FIRST FINANCIAL BANKSHARES INC (FFIN).
3 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 18 Aug 2026, 13:54.

Change

Previous filing in this sequence was filed on 17 Dec 2025.
Current net transaction value: $0.

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 0001243211 Primary reporting owner

DUESER F SCOTT

Relationship: Executive Chairman, Director
Address: P. O. BOX 701, ABILENE
Signature: By: Michelle S. Hickox Attorney in Fact for F. Scott Dueser
Signature date: 18 Aug 2026

Reported non-derivative transactions

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

FFIN transaction

Common Stock

Award

Transaction value
Shares: +12,755
Change %: +2.5%
Price: $0.000000^*
Shares after: 515,262
Date: 14 Aug 2026
Ownership: By Trust
Footnotes: F1, F2

FFIN transaction

Common Stock

Disposed to Issuer

Transaction value
Shares: -8,875
Change %: -1.7%
Price
Shares after: 506,387
Date: 14 Aug 2026
Ownership: By Trust
Footnotes: F2, F3

FFIN holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 471,004
Date: 14 Aug 2026
Ownership: By Partnership
Footnotes: F4

FFIN holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 408,310
Date: 14 Aug 2026
Ownership: By Partnership
Footnotes: F5

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: +8,875
Change %: +18%
Price
Shares after: 59,245
Date: 14 Aug 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 8,875
Exercise price
Footnotes: F3

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

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 5 footnotes

Footnote F1

Reflects grant of restricted stock units (RSUs) which vest in three approximately equal installments on each of the three anniversaries of the grant date.

Footnote F2

Represents shares held by several trusts of which Mr. Dueser is trustee, settlor and beneficiary.

Footnote F3

In connection with the vesting on August 14, 2026, of 8,875 restricted stock units previously granted to the reporting person, the reporting person's receipt of 8,875 shares of common stock was deferred resulting in the reporting person's receipt instead of 8,875 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 8,875 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 F4

Represents shares that are owned by a family limited partnership of which Mr. Dueser serves as manager of the general partner and to which he disclaims beneficial ownership with respect to 353,253 shares. This report should not be deemed an admission that Mr. Dueser is the beneficial owner of these shares for purposes of Section 16 or any other purpose.

Footnote F5

Represents shares that are owned by a family limited partnership of which Mr. Dueser serves as manager of the general partner and to which he disclaims beneficial ownership with respect to 291,125 shares. This report should not be deemed an admission that Mr. Dueser is the beneficial owner of these shares for purposes of Section 16 or any other purpose.