Results of Operations

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549     FORM 8-K     CURRENT REPORT PURSUANT TO SECTION 13 OR 15 (d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported): April 22, 2021     FIRST FINANCIAL BANKSHARES, INC. (Exact Name of Registrant as Specified in its Charter)       Texas   0-7674   75-0944023 (State or other Jurisdiction of Incorporation)   (Commission File No.)   (IRS Employer Identification No.) 400 Pine Street , Abilene , Texas 79601 (Address of Principal Executive Offices and Zip Code) Registrant’s Telephone Number (325) 627-7155     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:   ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 203.425)   ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)   ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2 (b))   ☐ Pre-commencement communications pursuant to Rule 13e-4 (c) under the Exchange Act (17 CFR 240.13 e-4 (c)) Securities registered pursuant to Section 12(b) of the Act:   Title of each class   Trading Symbol(s)   Name of each exchange on which registered Common Stock, $0.01 par value   FFIN   The Nasdaq Stock Market LLC 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 2.02 RESULTS OF OPERATIONS AND FINANCIAL CONDITION Attached as an exhibit to this Form 8-K is the earnings release for the quarter ended March 31, 2021 of First Financial Bankshares, Inc.   ITEM 9.01 FINANCIAL STATEMENTS AND EXHIBITS   99.1    Press Release dated April 22, 2021 Exhibit 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.       FIRST FINANCIAL BANKSHARES, INC.     (Registrant) DATE: April 26, 2021     By:   /s/ F. Scott Dueser       F. SCOTT DUESER       Chairman of the Board, President and Chief Executive Officer