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ATI SEC Filings

SEC filings for ATI. Annual and quarterly reports, 8-K events, Form 4 insider filings and 13D/G stake disclosures.

All10-K10-Q8-KProxyForm 413D/GLast 12 months
FormFiledAccession
10-QOct 29, 2026EDGAR
8-KOct 29, 2026EDGAR
SC 13G/AamendedBlackRock, Inc.Oct 27, 2026EDGAR
4Harris Timothy JSenior VP and CDIOSep 23, 2026EDGAR
4Harris Timothy JSenior VP and CDIOSep 17, 2026EDGAR
4Harris Timothy JSenior VP and CDIOSep 10, 2026EDGAR
4Morehouse David JSep 4, 2026EDGAR
4Harris Timothy JSenior VP and CDIOSep 2, 2026EDGAR
4Harris Timothy JSenior VP and CDIOAug 26, 2026EDGAR
4Fields Kimberly AChair, President and CEOAug 19, 2026EDGAR
8-KAug 6, 2026EDGAR
10-QAug 6, 2026EDGAR
4Fields Kimberly AChair, President and CEOJul 30, 2026EDGAR
4Fields Kimberly AChair, President and CEOJul 9, 2026EDGAR
4Foster James RobertSVP, Finance and CFOJul 6, 2026EDGAR
4Fields Kimberly AChair, President and CEOJun 24, 2026EDGAR
8-KJun 8, 2026EDGAR
4Fields Kimberly AChair, President and CEOJun 4, 2026EDGAR
8-KJun 3, 2026EDGAR
8-KJun 3, 2026EDGAR
4Sharma RubyMay 21, 2026EDGAR
4Morehouse David JMay 21, 2026EDGAR
4Lydon-Rodgers JeanMay 21, 2026EDGAR
4Lund Elizabeth HefleyMay 21, 2026EDGAR
4Kah MarianneMay 21, 2026EDGAR
4Hess David PMay 21, 2026EDGAR
4Corvi CarolynMay 21, 2026EDGAR
4Carlisle Herbert JMay 21, 2026EDGAR
4BALL M LEROYMay 21, 2026EDGAR
8-KMay 19, 2026EDGAR
SC 13G/AamendedCapital World InvestorsMay 14, 2026EDGAR
4Fields Kimberly APresident, CEO and DirectorMay 12, 2026EDGAR
10-QApr 30, 2026EDGAR
8-KApr 30, 2026EDGAR
SC 13GVanguard Capital ManagementApr 29, 2026EDGAR
SC 13G/AamendedCapital International InvestorsApr 7, 2026EDGAR
SC 13G/AamendedThe Vanguard GroupMar 26, 2026EDGAR
4Bhatia Vaishali S.SVP, General Counsel and CCOMar 24, 2026EDGAR
4Morehouse David JMar 11, 2026EDGAR
4Miller Michael BenjaminVP Chief Accounting OfficerMar 4, 2026EDGAR
10-KFeb 20, 2026EDGAR
4BALL M LEROYFeb 19, 2026EDGAR
4WETHERBEE ROBERT SExecutive ChairmanFeb 19, 2026EDGAR
8-KFeb 19, 2026EDGAR
8-KFeb 3, 2026EDGAR
4Foster James RobertSVP, Finance and CFOJan 23, 2026EDGAR
4WETHERBEE ROBERT SExecutive ChairmanJan 7, 2026EDGAR
4Miller Michael BenjaminVP Chief Accounting OfficerJan 7, 2026EDGAR
4Fields Kimberly APresident, CEO and DirectorJan 7, 2026EDGAR
4Harris Timothy JSenior VP and CDIOJan 7, 2026EDGAR
4Bhatia Vaishali S.SVP, General Counsel and CCOJan 7, 2026EDGAR
4WETHERBEE ROBERT SExecutive ChairmanDec 20, 2025EDGAR
8-KDec 8, 2025EDGAR
4Harris Timothy JSenior VP and CDIONov 26, 2025EDGAR
4Busch Tina KilloughSVP, CHRONov 26, 2025EDGAR
4BALL M LEROYNov 21, 2025EDGAR
4Lydon-Rodgers JeanNov 21, 2025EDGAR
4Lund Elizabeth HefleyNov 21, 2025EDGAR
4WETHERBEE ROBERT SExecutive ChairmanNov 21, 2025EDGAR
4Harris Timothy JSenior VP and CDIONov 21, 2025EDGAR
8-KNov 18, 2025EDGAR
SC 13GCapital World InvestorsNov 14, 2025EDGAR
SC 13G/AamendedCapital International InvestorsNov 13, 2025EDGAR
4Harris Timothy JSenior VP and CDIONov 13, 2025EDGAR

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Source: SEC EDGAR.