Company Update

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 14, 2026   F.N.B. CORPORATION FNB CORP/PA/ (Exact name of registrant as specified in its charter)   Pennsylvania (State or other jurisdiction of incorporation)   001-31940   25-1255406 (Commission File Number)   (IRS Employer Identification No.)       626 Washington Place , Pittsburgh ,  PA   15219 (Address of principal executive offices)   (Zip Code)         ( 800 ) 555-5455     (Registrant’s telephone number, including area code)   N/A (Former name or former address, if changed since last report) 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 (see General Instruction A.2. below):   ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)   ☐ 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 240.13e-4(c))   Securities registered pursuant to Section 12(b) of the Act:   Title of Each Class   Trading Symbol(s)   Name of Exchange on which Registered Common Stock, par value $0.01 per share   FNB   New York Stock Exchange   Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). 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 8.01. OTHER EVENTS   On April 14, 2026, F.N.B. Corporation (the “Company”) issued a press release announcing that its Board of Directors increased the quarterly cash dividend on its common stock to $0.13 per share payable on June 15, 2026.   The Company also announced that its Board of Directors approved a new share repurchase program, authorizing the Company to repurchase up to $250 million of the Company’s outstanding shares of common stock. The new share repurchase program is in addition to the $50 million in repurchase capacity remaining available under the prior share repurchase program that was authorized in April 2022.   A copy of the press release is attached hereto as Exhibit 99.1, and incorporated by reference herein.   ITEM 9.01. FINANCIAL STATEMENTS AND EXHIBITS   (d) Exhibits:   Exhibit Number   Description 99.1   Press release dated April 14, 2026 104   Cover Page Interactive Data File (the cover page XBRL tags are 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.     F.N.B. CORPORATION   (Registrant)         By: /s/ Vincent J. Calabrese, Jr.   Name:  Vincent J. Calabrese, Jr.   Title: Chief Financial Officer     (Principal Financial Officer)   Dated: April 14, 2026