T. Luke Longhofer - 14 Aug 2026 Form 4 Insider Report for FIRST FINANCIAL BANKSHARES INC (FFIN)

Reporting relationship: EVP - Chief Credit Officer
Issuer ticker: FFIN
Reported as of: 14 Aug 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 18 Aug 2026, 17:18:12 UTC
Prior SEC filing: 17 Mar 2026
Source filing: View source filing
Reporting owner signature: By: Michelle S. Hickox Attorney in Fact for T. Luke Longhofer

Key filing fact

T. Luke Longhofer filed Form 4 for FIRST FINANCIAL BANKSHARES INC (FFIN) on 18 Aug 2026.

Key facts

This page summarizes T. Luke Longhofer's Form 4 filing for FIRST FINANCIAL BANKSHARES INC (FFIN).
6 reported transactions and 3 derivative rows are listed below.
Accepted by SEC: 18 Aug 2026, 17:18.

Change

Previous filing in this sequence was filed on 17 Mar 2026.
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 0001679051 Primary reporting owner

Longhofer T. Luke

Relationship: EVP - Chief Credit Officer
Address: P O BOX 701, ABILENE
Signature: By: Michelle S. Hickox Attorney in Fact for T. Luke Longhofer
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: +3,061
Change %: +7.5%
Price: $0.000000^*
Shares after: 44,031
Date: 14 Aug 2026
Ownership: Direct
Footnotes: F1

FFIN transaction

Common Stock

Disposed to Issuer

Transaction value
Shares: -1,519
Change %: -3.4%
Price
Shares after: 42,512
Date: 14 Aug 2026
Ownership: Direct
Footnotes: F2

FFIN transaction

Common Stock

Disposed to Issuer

Transaction value
Shares: -714
Change %: -1.7%
Price
Shares after: 41,798
Date: 16 Aug 2026
Ownership: Direct
Footnotes: F3

Reported derivative securities

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

FFIN transaction Derivative

Employee Stock Option, Right to Buy

Award

Transaction value
Shares: +5,684
Change %
Price: $35.28^*
Shares after: 5,684
Date: 14 Aug 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 5,684
Exercise price: $35.28
Footnotes: F4

FFIN transaction Derivative

Deferred Stock Units

Award

Transaction value
Shares: +1,519
Change %: +19%
Price
Shares after: 9,580
Date: 14 Aug 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 1,519
Exercise price
Footnotes: F2

FFIN transaction Derivative

Deferred Stock Units

Award

Transaction value
Shares: +714
Change %: +7.5%
Price
Shares after: 10,294
Date: 16 Aug 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 714
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 4 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

In connection with the vesting on August 14, 2026, of 1,519 restricted stock units previously granted to the reporting person, the reporting person's receipt of 1,519 shares of common stock was deferred resulting in the reporting person's receipt instead of 1,519 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 1,519 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 F3

In connection with the vesting on August 16, 2026, of 714 restricted stock units previously granted to the reporting person, the reporting person's receipt of 714 shares of common stock was deferred resulting in the reporting person's receipt instead of 714 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 714 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

The options vest 33.33% after one year from the grant date, 66.66% after the second year, and 100% after the third year.