Item 5. Other Information
Item 5. Other Information
Rule 10b5-1 Plan Elections
During the fiscal quarter ended June 28, 2026, none of the Company's directors or officers, as defined in Section 16 of the Securities Exchange Act of 1934 (the Exchange Act), adopted or terminated any "Rule 10b5-1 trading arrangements," as such term is defined in Item 408(c) of Regulation S-K under the Exchange Act.
Item 6. Exhibits
(a) Exhibits
10.1 T hird Supplemental Indenture, dated June 8 , 2026, between ATI Inc. and Computershare Trust Company, N.A., as trustee (incorporated by reference to Exhibit 1.1 to the Company's Current Report on Form 8-K filed June 8, 2026).
10.2 F orm of 5.875% Senior Note due 2033 (included in and incorporated by reference to Exhibit 1.1 to the Company's Current Report on Form 8-K filed on June 8, 2026).
31.1 Certification of Chief Executive Officer required by Securities and Exchange Commission Rule 13a – 14(a) or 15d – 14(a) (filed herewith).
31.2 Certification of Chief Financial Officer required by Securities and Exchange Commission Rule 13a – 14(a) or 15d – 14(a) (filed herewith).
32.1 Certification pursuant to 18 U.S.C. Section 1350 (furnished herewith).
101.INS Inline XBRL Instance Document - the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document.
101.SCH Inline XBRL Taxonomy Extension Schema Document.
101.CAL Inline XBRL Taxonomy Extension Calculation Linkbase Document.
101.DEF Inline XBRL Taxonomy Extension Definition Linkbase Document.
101.LAB Inline XBRL Taxonomy Extension Label Linkbase Document.
101.PRE Inline XBRL Taxonomy Extension Presentation Linkbase Document.
104 Cover Page Interactive Data File - the cover page interactive data file does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document.
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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 thereunto duly authorized.
ATI INC.
(Registrant)
Date: August 6, 2026 By /s/ James Robert Foster
James Robert Foster
Senior Vice President, Finance and Chief Financial Officer
(Principal Financial Officer)
Date: August 6, 2026 By /s/ Michael B. Miller
Michael B. Miller
Vice President, Controller and Chief Accounting Officer
(Principal Accounting Officer)
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Text extracted from the filing as submitted to EDGAR. Formatting, tables and exhibits are simplified for reading; the original document is authoritative for anything you rely on.