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DUOL SEC Filings

SEC filings for DUOL. 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
4Shelton James HOct 14, 2026EDGAR
4Lilly III John OsborneOct 14, 2026EDGAR
4Bohutinsky AmyOct 14, 2026EDGAR
4Schlosser MarioOct 13, 2026EDGAR
4von Ahn LuisPresident & CEO, Co-FounderOct 9, 2026EDGAR
4von Ahn LuisPresident & CEO, Co-FounderSep 28, 2026EDGAR
4von Ahn LuisPresident & CEO, Co-FounderSep 23, 2026EDGAR
4von Ahn LuisPresident & CEO, Co-FounderSep 19, 2026EDGAR
4Chen Stephen C.General CounselSep 15, 2026EDGAR
4GORDON WILLIAM BSep 10, 2026EDGAR
4Glance NatalieChief Engineering OfficerAug 19, 2026EDGAR
4Meese RobertChief Business OfficerAug 19, 2026EDGAR
4Chen Stephen C.General CounselAug 19, 2026EDGAR
8-KAug 19, 2026EDGAR
SC 13G/AamendedVon Ahn LuisAug 12, 2026EDGAR
4KRAWCHECK SALLIEAug 12, 2026EDGAR
SC 13GAQR Capital Management Holdings, LLC and 1 other reporting personAug 12, 2026EDGAR
8-KAug 10, 2026EDGAR
8-KAug 5, 2026EDGAR
10-QAug 5, 2026EDGAR
SC 13GVanguard Capital ManagementJul 31, 2026EDGAR
4Shelton James HJul 14, 2026EDGAR
4Bohutinsky AmyJul 14, 2026EDGAR
4Schlosser MarioJul 14, 2026EDGAR
4Lilly III John OsborneJul 14, 2026EDGAR
4Chen Stephen C.General CounselJun 18, 2026EDGAR
4Shelton James HJun 5, 2026EDGAR
4Clemens SaraJun 5, 2026EDGAR
4Bohutinsky AmyJun 5, 2026EDGAR
4Lilly III John OsborneJun 5, 2026EDGAR
4GORDON WILLIAM BJun 5, 2026EDGAR
4Schlosser MarioJun 5, 2026EDGAR
4Ross BonnieJun 5, 2026EDGAR
8-KJun 5, 2026EDGAR
4Chen Stephen C.General CounselMay 19, 2026EDGAR
4Glance NatalieChief Engineering OfficerMay 19, 2026EDGAR
4Meese RobertChief Business OfficerMay 19, 2026EDGAR
SC 13G/AamendedCapital World InvestorsMay 14, 2026EDGAR
4von Ahn LuisPresident & CEO, Co-FounderMay 13, 2026EDGAR
4Chen Stephen C.General CounselMay 13, 2026EDGAR
SC 13G/AamendedAbigail P. Johnson and 1 other reporting personMay 6, 2026EDGAR
8-KMay 4, 2026EDGAR
10-QMay 4, 2026EDGAR
DEF 14AApr 17, 2026EDGAR
4Munson GillianChief Financial OfficerMar 27, 2026EDGAR
SC 13G/AamendedThe Vanguard GroupMar 26, 2026EDGAR
4Meese RobertChief Business OfficerMar 16, 2026EDGAR
4Shelton James HMar 4, 2026EDGAR
4Glance NatalieChief Engineering OfficerMar 3, 2026EDGAR
8-K/AamendedFeb 27, 2026EDGAR
8-KFeb 26, 2026EDGAR
10-KFeb 26, 2026EDGAR
4Meese RobertChief Business OfficerFeb 20, 2026EDGAR
4Skaruppa MatthewChief Financial OfficerFeb 20, 2026EDGAR
4Chen Stephen C.General CounselFeb 20, 2026EDGAR
4Glance NatalieChief Engineering OfficerFeb 20, 2026EDGAR
8-KJan 12, 2026EDGAR
4Chen Stephen C.General CounselDec 30, 2025EDGAR
4Hacker SeverinChief Tech Officer, Co-FounderDec 9, 2025EDGAR
4Glance NatalieChief Engineering OfficerDec 9, 2025EDGAR
4Hacker SeverinChief Tech Officer, Co-FounderNov 20, 2025EDGAR
4Chen Stephen C.General CounselNov 19, 2025EDGAR
4Skaruppa MatthewChief Financial OfficerNov 19, 2025EDGAR
4Glance NatalieChief Engineering OfficerNov 19, 2025EDGAR
4Meese RobertChief Business OfficerNov 18, 2025EDGAR
4Hacker SeverinChief Tech Officer, Co-FounderNov 6, 2025EDGAR
10-QNov 5, 2025EDGAR
8-KNov 5, 2025EDGAR
SC 13G/AamendedBAILLIE GIFFORD & CONov 4, 2025EDGAR
SC 13G/AamendedBAILLIE GIFFORD & CONov 3, 2025EDGAR
4Hacker SeverinChief Tech Officer, Co-FounderOct 23, 2025EDGAR

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Source: SEC EDGAR.