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

Duolingo is facing a securities class action lawsuit alleging that the company and its executives failed to disclose that they deliberately added friction to the user experience through increased ads, subscription upselling, and declining product quality to drive users away. The lawsuit also claims that Duolingo's AI-generated content was degrading product quality and harming user retention, contrary to public statements about growth and improvements. Investors with losses exceeding $100,000 have until December 7, 2026 to file lead plaintiff applications.

10/22/2026, 2:52 PM • GlobeNewswire

Deadline Alert: Duolingo, Inc. Investors Have Until December 7, 2026 to Seek Lead Plaintiff Role in Securities Fraud Class Action, Glancy Prongay Wolke & Rotter LLP Reminds

A securities fraud class action has been filed against Duolingo, Inc. for allegedly failing to disclose material adverse facts about its business. The lawsuit covers investors who purchased Duolingo securities between May 2, 2025 and February 26, 2026. The complaint alleges the company concealed that daily active user growth was being undermined by deliberately added user friction through increased ads, subscription upsells, and worsened product quality from AI-generated content. Investors have until December 7, 2026 to seek lead plaintiff status.

10/21/2026, 3:00 PM • GlobeNewswire

Bronstein, Gewirtz & Grossman LLC Urges Duolingo, Inc. Investors to Act: Class Action Filed Alleging Investor Harm

A class action lawsuit has been filed against Duolingo, Inc. alleging that the company failed to disclose that increased user friction from ads and subscription upsells, combined with lower-quality AI-generated content, were negatively impacting daily active user growth rates. The lawsuit covers investors who purchased Duolingo securities between May 2, 2025 and February 26, 2026. The lead plaintiff deadline is December 7, 2026.

10/21/2026, 2:00 PM • GlobeNewswire

ROSEN, TRUSTED INVESTOR COUNSEL, Encourages Duolingo, Inc. Investors to Secure Counsel Before Important Deadline in Securities Class Action - DUOL

Rosen Law Firm is soliciting investors who purchased Duolingo Class A common stock between May 2, 2025 and February 26, 2026 to join a securities class action lawsuit. The lawsuit alleges that Duolingo made false statements regarding DAU growth rates, failed to disclose that increased user friction from ads and upsells was harming user retention, and that low-quality AI-generated content was degrading product quality and user experience. The lead plaintiff deadline is December 7, 2026.

10/20/2026, 6:32 PM • GlobeNewswire

Bronstein, Gewirtz & Grossman LLC Urges Duolingo, Inc. Investors to Act: Class Action Filed Alleging Investor Harm

A class action lawsuit has been filed against Duolingo, Inc. alleging that the company failed to disclose that increased user friction from ads and subscription upsells, combined with lower-quality AI-generated content, were negatively impacting Daily Active User growth rates. The lawsuit covers investors who purchased Duolingo securities between May 2, 2025 and February 26, 2026.

10/18/2026, 2:00 PM • GlobeNewswire

4 Turnaround Stocks to Buy Before 2026 Is Over and Hold for a Decade

The article highlights four software companies that have experienced significant stock declines but show strong fundamentals with double-digit revenue growth and recent rallies. Duolingo, Monday.com, Unity Software, and GitLab are positioned as potential long-term turnaround investments, each having recovered 38-145% over the past six months despite remaining well below their all-time highs.

10/17/2026, 4:23 PM • The Motley Fool

ROSEN, TRUSTED INVESTOR COUNSEL, Encourages Dun & Bradstreet Holdings, Inc. Investors to Secure Counsel Before Important Deadline in Securities Class Action - DNB

Rosen Law Firm is soliciting investors for multiple securities class action lawsuits. The primary case involves Dun & Bradstreet Holdings, alleging false and misleading statements regarding a merger with Clearlake Capital Group, including omissions about executive interests and financial advisor conflicts. Additional cases involve Duolingo, Inc. and XTI Aerospace, Inc. The lead plaintiff deadline for the DNB case is November 10, 2026.

10/17/2026, 12:17 PM • GlobeNewswire

ROSEN, RECOGNIZED INVESTOR COUNSEL, Encourages Duolingo, Inc. Investors to Secure Counsel Before Important Deadline in Securities Class Action - DUOL

Rosen Law Firm is urging Duolingo investors who purchased stock between May 2, 2025 and February 26, 2026 to join a securities class action lawsuit. The lawsuit alleges that Duolingo made false statements about user growth by concealing that increased monetization efforts, ad volume, and lower-quality AI-generated content were negatively impacting daily active users and product quality. The lead plaintiff deadline is December 7, 2026.

10/17/2026, 11:25 AM • GlobeNewswire

Kaplan Fox Reminds Duolingo, Inc. (NASDAQ: DUOL) Investors Seeking Recovery of the Lead Plaintiff Deadline on December 7, 2026

Kaplan Fox has filed securities class action lawsuits against Duolingo, The Ensign Group, and Coastal Financial on behalf of investors who suffered losses. Duolingo faces allegations of concealing negative impacts from increased ad volume and AI-generated content on user growth, with significant stock price drops in late 2025 and early 2026. Lead plaintiff deadlines range from December 1-7, 2026.

10/16/2026, 2:30 PM • GlobeNewswire

DUOL Class Action Reminder - Robbins LLP Reminds Investors of the Lead Plaintiff Deadline in the Duolingo, Inc. Securities Fraud Class Action Lawsuit

Robbins LLP reminds investors of the December 7, 2026 lead plaintiff deadline in a securities fraud class action against Duolingo, Inc. The lawsuit alleges that Duolingo misled investors about product quality and sustainability by concealing negative impacts from aggressive monetization strategies and reliance on lower-quality AI-generated content. The company's stock declined significantly following three disclosure events in late 2025 and early 2026 that revealed slowing user growth and reduced profitability projections.

10/15/2026, 8:30 PM • GlobeNewswire

Bronstein, Gewirtz & Grossman LLC Urges Duolingo, Inc. Investors to Act: Class Action Filed Alleging Investor Harm

A class action lawsuit has been filed against Duolingo, Inc. alleging that the company failed to disclose that increased user friction from ads and subscription upsells, combined with lower-quality AI-generated content, were negatively impacting Daily Active User growth rates. The lawsuit covers investors who purchased Duolingo securities between May 2, 2025 and February 26, 2026. The lead plaintiff deadline is December 7, 2026.

10/15/2026, 2:00 PM • GlobeNewswire

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

ClaimsFiler reminds Duolingo investors with losses exceeding $100,000 that they have until December 7, 2026 to file lead plaintiff applications in a securities class action lawsuit. The lawsuit alleges that Duolingo and its executives failed to disclose that the company was deliberately adding friction to the user experience through increased ads and upselling, which harmed Daily Active User growth. The suit also claims that Duolingo's AI-generated content degraded product quality and that the company's monetization strategy eroded user experience and subscription value.

10/15/2026, 2:00 PM • GlobeNewswire

ROSEN, SKILLED INVESTOR COUNSEL, Encourages Duolingo, Inc. Investors to Secure Counsel Before Important Deadline in Securities Class Action - DUOL

Rosen Law Firm has filed a class action lawsuit against Duolingo, Inc. on behalf of investors who purchased Class A common stock between May 2, 2025 and February 26, 2026. The lawsuit alleges that Duolingo made materially false statements regarding Daily Active User growth, failed to disclose that increased user friction from ads and subscription upsells was negatively impacting DAU growth, and that low-quality AI-generated content was degrading the product experience and user retention. The lead plaintiff deadline is December 7, 2026.

10/14/2026, 9:18 PM • GlobeNewswire

DUOL Shareholder Alert: December 7, 2026 Lead Plaintiff Deadline in Duolingo, Inc. Securities Class Action - Contact Levi & Korsinsky

A securities class action has been filed against Duolingo, Inc. for allegedly misleading investors about daily active user growth and the impact of its monetization strategy. The stock fell approximately 61% from November 2025 to February 2026 after the company disclosed decelerating user growth and a strategic shift away from aggressive monetization. The lead plaintiff deadline is December 7, 2026.

10/12/2026, 2:52 PM • GlobeNewswire

Kaplan Fox & Kilsheimer LLP Alerts Duolingo, Inc. (NASDAQ: DUOL) Investors to a Securities Class Action Deadline on December 7, 2026

A securities class action lawsuit has been filed against Duolingo for investors who purchased stock between May 2, 2025 and February 26, 2026. The complaint alleges the company made false and misleading statements about the negative impact of increased ad volume, subscription upsells, and AI-generated content on daily active user growth. Duolingo's stock dropped significantly following disappointing financial results and the CFO's departure, with declines of 25%, 8.5%, and 14% on three separate dates.

10/12/2026, 2:00 PM • GlobeNewswire