Form 8-K FIRST FINANCIAL BANKSHAR For: Apr 28

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

Date of Report (Date of Earliest Event Reported): April 28, 2026

First Financial Bankshares, Inc.

(Exact name of registrant as specified in its Charter)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

Securities registered pursuant to Section 12(b) of the Act:

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 or Rule 12b-2 of the Securities Exchange Act of 1934.

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

ITEM 7.01 REGULATION FD DISCLOSURE

On April 28, 2026, First Financial Bankshares, Inc. (the “Company”) held its Annual Shareholder Meeting in Abilene, Texas. During the Annual Shareholder Meeting, F. Scott Dueser, the Company’s Executive Chairman, and David Bailey, the Company's President and Chief Executive Officer, made presentations to the Company’s shareholders and invited guests. The presentation materials are attached to this Form 8-K as Exhibit 99.1.

ITEM 9.01 FINANCIAL STATEMENTS AND EXHIBITS

99.1 Annual Shareholder Meeting Presentation

104 Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this Report to be signed on its behalf by the undersigned hereunto duly authorized.