{"url_path":"/sec/ati/10-k/2026/item-12","section_key":"item-12","section_title":"Item 12 Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters","topic":"sec","document":{"doc_type":"10-K","doc_date":"2026-02-20","source_url":"https://www.sec.gov/Archives/edgar/data/1018963/0001628280-26-010140-index.html","accession_number":"0001628280-26-010140","cik":"0001018963","ticker":"ATI","issuer_name":"ATI INC","edgar_url":"https://www.sec.gov/Archives/edgar/data/1018963/0001628280-26-010140-index.html","primary_entity_key":"0001018963","primary_entity_name":"ATI INC"},"word_count":230,"has_tables":true,"body_markdown":"Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters\n\nInformation relating to the ownership of equity securities by certain beneficial owners and management is incorporated by reference to “Stock Ownership Information” as set forth in the 2026 Proxy Statement.\n\nEquity Compensation Plan Information\n\nInformation about our equity compensation plans at December 28, 2025 was as follows:\n\n(a)\n\n(In thousands, except per share amounts)Number of\nShares to be\nIssued Upon\nExercise of\nOutstanding\nOptions, Warrants and Rights (1)Weighted\nAverage\nExercise Price of\nOutstanding\nOptions, Warrants and Rights (2)Number of Shares\nRemaining Available\nfor Future Issuance\nUnder Equity\nCompensation Plans (3)\n(excluding securities\nreflected in column (a))\n\nEquity Compensation Plans Approved by Shareholders$2,803 $— $5,170 \n\nEquity Compensation Plans Not Approved by Shareholders— — — \n\nTotal2,803 $— $5,170 \n\n(1)Includes stock-settled equity awards previously granted under the ATI Inc. 2022 Incentive Plan (the “2022 Incentive Plan”) and prior incentive plans. Amounts reflected for performance share unit awards represent the maximum number of shares that could be awarded at the conclusion of the applicable performance cycle.\n\n(2)Outstanding stock-settled awards are not included in this calculation.\n\n(3)Represents shares available for issuance under the 2022 Incentive Plan (which provides for the issuance of stock options, stock appreciation rights, restricted shares, restricted stock units, performance and other stock-based awards). See Note 16. Stockholders’ Equity for a discussion of the Company’s stock-based compensation plans."}