Duolingo Shares Drop 3.18% as Trading Volume Falls to $420M Amid AI Rivalry and Executive Stock Sales

On September 23, 2025, . The decline followed intensified competition from Google’s AI-powered language-learning tools, a pending class-action probe, and insider selling by top executives. Google’s recent rollout of real-time translation and interactive learning features has raised concerns about user base erosion, while Pomerantz LLP’s legal investigation adds regulatory uncertainty.

, , , . Analysts cited these moves as signals of internal caution, compounding investor anxieties. .

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