Reg FD Disclosure

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): March 10, 2026 ( March 10, 2026 )     HOWMET AEROSPACE INC. (Exact name of registrant as specified in its charter)     Delaware 1-3610 25-0317820 (State of Incorporation) (Commission File Number) (IRS Employer Identification No.)   201 Isabella Street , Suite 200   Pittsburgh , Pennsylvania 15212-5872 (Address of Principal Executive Offices) (Zip Code)   Office of Investor Relations (412) 553-1950 Office of the Secretary ( 412 ) 553-1940 (Registrant’s telephone numbers, including area code)   (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:   ¨ 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 each exchange on which registered Common Stock , par value $1.00 per share HWM 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 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2).   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 March 10, 2026, Howmet Aerospace Inc. posted its Technology and Markets Day presentation to its website. A copy of the presentation is attached as Exhibit 99.1 to this Current Report on Form 8-K.   In accordance with General Instruction B.2 of Form 8-K, the information in Item 7.01 of this Current Report on Form 8-K, including Exhibit 99.1, shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liability of that section, and shall not be incorporated by reference into any registration statement or other document filed under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such filing. This information set forth under this Item 7.01, including Exhibit 99.1, shall not be deemed an admission as to the materiality of any information in this Current Report on Form 8-K.   Item 9.01 Financial Statements and Exhibits.   (d) Exhibits   99.1 Howmet Aerospace Inc. Technology and Markets Day Presentation, dated March 10, 2026.     104 The cover of this Current Report on Form 8-K, formatted in Inline XBRL.         SIGNATURE   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.     HOWMET AEROSPACE INC.       Dated:   March 10, 2026 By: /s/ Neil E. Marchuk   Name: Neil E. Marchuk   Title: Executive Vice President and Chief Administrative Officer