Duolingo Shareholder Alert: ClaimsFiler Reminds Investors With Losses In Excess Of $100,000 Of Lead Plaintiff Deadline In Class Action Lawsuit Against Duolingo, Inc. – DUOL

NEW ORLEANS, Oct. 15, 2026 (GLOBE NEWSWIRE) — ClaimsFile , a FREE sha eholde i fo matio se vice, emi ds i vesto s that they have u til Decembe 7, 2026 to file lead plai tiff applicatio s i a secu ities class actio lawsuit agai st Duoli go, I c. (“Duoli go” o the “Compa y”) (NasdaqGS: DUOL), if they pu chased Duoli go, I c. Class A commo stock betwee May 2, 2025 a d Feb ua y 26, 2026, i clusive (the “Class Pe iod”). This actio is pe di g i the U ited States Dist ict Cou t fo the Weste Dist ict of Pe sylva ia.

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Duoli go i vesto s should visit us at https://claimsfile .com/cases/ asdaq-duol/ o call toll-f ee (833) 538-3601. Lawye s at Kah Swick & Foti, LLC a e available to discuss you legal optio s.

About the Lawsuit

Duoli go a d ce tai of its executives a e cha ged with faili g to disclose mate ial i fo matio du i g the Class Pe iod, violati g fede al secu ities laws.

Specifically, the lawsuit alleges that Defe da ts failed to disclose to i vesto s that: (i) Duoli go was delibe ately addi g f ictio to the use expe ie ce, th ough sha ply i c eased ad volume, upselli g of subsc iptio tie s, a d decli i g p oduct quality, which Defe da ts k ew would d ive use s away f om the app a d ultimately slow Daily Active Use (“DAU”) g owth; (ii) Duoli go’s exte sive A/B testi g showed Defe da ts that added f ictio i the f ee use expe ie ce was hu ti g DAU g owth; (iii) Duoli go’s apidly p oduced AI co te t was deg adi g its p oduct offe i gs, ha mi g the use expe ie ce a d use t e ds, a d putti g the sustai ability of Duoli go’s fi a cial pe fo ma ce at isk; a d (iv) athe tha fueli g sustai ed g owth a d st o g use mome tum th ough co te t a d “p oduct imp oveme ts” that “get imp oved ete tio ,” Duoli go’s mo etizatio push a d lowe -quality AI co te t we e, as its o goi g A/B testi g evealed, e odi g both the p oduct expe ie ce a d the value of its subsc iptio tie s.

The case is City of Dea bo Heights Act 345 Police & Fi e Reti eme t System v. Duoli go, I c., No. 26-cv-02199.

About ClaimsFile

ClaimsFile has a si gle missio : to se ve as the i fo matio sou ce to help etail i vesto s ecove thei sha e of billio s of dolla s f om secu ities class actio settleme ts. At ClaimsFile .com, i vesto s ca : (1) egiste fo f ee to gai access to i fo matio a d settleme t websites fo va ious secu ities class actio cases so they ca timely submit thei ow claims; (2) upload thei po tfolio t a sactio al data to be otified about eleva t secu ities cases i which they may have a fi a cial i te est; a d (3) submit i qui ies to the Kah Swick & Foti, LLC law fi m fo f ee case evaluatio s.

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