阿勒格尼技术 2024年度报告

FORM10-K (Mark One) For the fiscal year endedDecember29, 2024OR Transition report pursuant to Section13 or 15(d) of the Securities Exchange Act of 1934 Commission file number1-12001 ATI Inc. (Exact name of registrant as specified in its charter) Indicate by check mark whether the Registrant is well known seasoned issuer, as defined in Rule 405 of the Securities Act.Yes☒No☐ Indicate by check mark if the Registrant is not required to file reports pursuant to Section13 or Section15(d) of the Act.Yes☐No☒ Indicate by check mark whether the Registrant (1)has filed all reports required to be filed by Section13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 Indicate by check mark whether the Registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§ 232.405 ofthis chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).Yes☒No☐ Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. Seedefinitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company” and “emerging growth company” in Rule 12b-2 of the Exchange Act. (Check one): 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☐ under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report.☒ Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-based compensation received by any of the registrant'sexecutive officers during the relevant recovery period pursuant to §240.10D-1(b).☐ Indicate by check mark whether the Registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).Yes☐No☒ On January 31, 2025, the Registrant had outstanding142,166,931shares of its Common Stock. The aggregate market value of the Registrant’s voting stock held by non-affiliates at June 30, 2024 was approximately $6.9billion, based on the closing price per share of CommonStock on June30, 2024 of $55.45 as reported on the New York Stock Exchange. Shares of Common Stock known by the Registrant to be beneficially owned by directors and officers of theRegistrant subject to the reporting and other requirements of Section16 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), are not included in the computation. TheRegistrant, however, has made no determination that such persons are “affiliates” within the meaning of Rule 12b-2 under the Exchange Act. Documents Incorporated By Reference Selected portions of the Proxy Statement for the Annual Meeting of Stockholders to be held on May 16, 2025 are incorporated by reference into Part III of this Report. INDEX PART I Item1. BusinessItem1A. Risk FactorsItem1B. Unresolved Staff CommentsItem 1C. CybersecurityItem2. PropertiesItem3. Legal ProceedingsItem4. Mine Safety Disclosures PART II Item5. Market for the Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of EquitySecuritiesItem6. [Reserved]Item7. Management’s Discussion and Analysis of Financial Condition and Results of OperationsItem7A. Quantitative and Qualitative Disclosures About Market RiskItem8. Financial Statements and Supplementary DataItem9. Changes in and Disagreements with Accountants on Accounting and Financial DisclosureItem9A. Controls and ProceduresItem9B. Other InformationItem 9C. Disclosure Regarding Foreign Jurisdictions that Prevent Inspections PART III Item10. Directors and Executive Officers of the RegistrantItem11. Executive CompensationItem12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder MattersItem13. Certain Relationships and Related Transactions, and Director IndependenceItem14. Principal Accountant Fees and Services PART IV Item15. Exhibits, Financial Statements and Financial Statement SchedulesItem 16. Form 10-K Summary SIGNATURES Item1. Business The Company ATI Inc. is a Delaware corporation with its corporate headquarters located at 2021 McKinney Avenue, Suite 1100, Dallas, TX 75201,telephone number (800) 289-7454, Internet website address www.atimaterials.com. Our Internet website and content contained thereinor connected thereto are not intended to incorporate into this Annual Report on Form 10-K. References to “ATI,” the “Company,” “theRegistrant,” “we,” “our” and “us” and similar terms mean ATI Inc. and its subsidiaries, unless the context otherwise requires. When used in this Annual Report on Form 10-K, unless the context otherwise requires or unless otherwise specified, any reference to“year” is to the Company’s fiscal year. The Company follows