Duolingo, Inc.: directors' dealings · United States · SEC (Form 4)

About Duolingo, Inc.

Duolingo, Inc. is a U.S.-based education technology company listed on the NASDAQ under the ticker DUOL, in the United States. Founded in 2011 by Luis von Ahn and Severin Hacker, both Carnegie Mellon engineers, the company was built around a straightforward mission: make high-quality education universally available. Its headquarters are in Pittsburgh, Pennsylvania, which remains the company’s operational and cultural center. Duolingo first gained scale as a mobile-first language-learning app and has since evolved into a broader learning platform that combines pedagogy, gamification, and data-driven product development. ([investors.duolingo.com](https://investors.duolingo.com/?utm_source=openai)) The core business is still language learning, delivered through Duolingo’s mobile app and web platform. The company offers courses in more than 40 languages and serves a very large global user base. Monetization is primarily driven by premium subscriptions and other paid offerings, while the free tier remains strategically important for user acquisition, engagement, and brand reach. Duolingo’s competitive edge comes from its strong consumer brand, highly effective product design, and a culture of rapid experimentation through A/B testing. Over time, the company has expanded beyond languages into adjacent learning products, including Duolingo English Test, Duolingo Math, Duolingo Music, and newer features that broaden the platform’s educational scope. ([investors.duolingo.com](https://investors.duolingo.com/?utm_source=openai)) From a competitive standpoint, Duolingo is widely viewed as the global leader in mobile language learning. Its scale, brand recognition, and mostly organic growth model give it meaningful advantages in user acquisition and app-store visibility. For investors, the key questions are execution on paid conversion, retention, and the company’s ability to extend growth beyond its core language-learning franchise. SEC filings indicate that Duolingo had more than 100 million monthly active users as of year-end 2024, underscoring the breadth of its platform and the strength of its consumer reach. ([investors.duolingo.com](https://investors.duolingo.com/?utm_source=openai)) Recent developments show that Duolingo remains highly product-driven. In April 2025, the company launched 148 new language courses, one of the largest content expansions in its history. At Duocon in September 2025, Duolingo announced major product updates, including a Duolingo Score integration with LinkedIn profiles, the expansion of its chess course, and improvements to its AI-powered Video Call feature. Investor-relations materials also show continued operational momentum into Q1 2026, while the SEC filing pipeline has remained active, including multiple Form 4 insider transaction filings, which keeps the stock in the spotlight for market participants. ([investors.duolingo.com](https://investors.duolingo.com/news-releases/news-release-details/duolingo-launches-148-new-language-courses?utm_source=openai))