HWM: Other company developments

Item 8.01. Other Events Segment Reorganization Howmet Aerospace Inc. (the “Company” or "Howmet Aerospace") is filing this Current Report on Form 8-K to recast historical segment information as set forth in the Company's Annual Report on Form 10-K for the year ended December 31, 2025, as filed with the Securities and Exchange Commission (“SEC”) on February 12, 2026 (“Original Report”). As previously disclosed and as reflected in the Company’s Quarterly Report on Form 10-Q for the quarterly period ended March 31, 2026, in the first quarter of 2026, the Company’s Chief Operating Decision Maker reorganized Howmet’s segments by moving a titanium alloy location from Engine Products to Engineered Structures as it better aligns with the operations of the Engineered Structures segment. The recasting had no impact on the Company’s consolidated results, financial position or cash flows. The titanium alloy location is one of the Company’s facilities at Whitehall, Michigan. Exhibit 99.1 to this Form 8-K provides recast segment information within the following items of the Company's Original Report to reflect the movement of the titanium alloy location from Engine Products to Engineered Structures: • Part II Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations - solely to reflect an explanation of the change under the heading "Segment Information" and changes in the numbers appearing in the tables and narrative under the headings “Segment Information—Engine Products” and “Segment Information—Engineered Structures”; and • Part II Item 8. Financial Statements and Supplementary Data - solely to reflect changes in “Note C. Segment and Geographic Area Information” in the “Notes to the Consolidated Financial Statements.” The items above included in