Welcome to our dedicated page for Duolingo SEC filings (Ticker: DUOL), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
Overview of Duolingo, Inc.
Duolingo, Inc. is a pioneering educational technology company that has redefined the landscape of language learning through its innovative mobile platform. Leveraging advanced data analytics and artificial intelligence, Duolingo creates an engaging, gamified learning environment that makes acquiring a new language accessible, fun, and effective. Its comprehensive suite of language-learning tools includes interactive lessons focusing on vocabulary, grammar, pronunciation, and listening skills using proven techniques like spaced repetition.
Business Model and Revenue Streams
At its core, Duolingo generates revenue through a diversified business model that encompasses several key streams. The company relies on time-based subscriptions that offer enhanced features and an ad-free experience. Additionally, it capitalizes on in-app advertising placements designed to maintain user engagement without compromising the learning experience. The Duolingo English Test provides a unique AI-driven language assessment, serving both educational institutions and professionals. Complementary in-app purchases further bolster its revenue, ensuring a well-rounded and sustainable financial structure.
Technological Innovation and User Engagement
Duolingo stands out with its commitment to integrating cutting-edge technologies into its platform. Its use of artificial intelligence and machine learning algorithms drives personalized content delivery and real-time feedback, which are critical for optimizing the user’s learning journey. The incorporation of sophisticated motion design—evidenced by strategic acquisitions that enhance its visual appeal—underscores the company’s focus on creating a dynamic and delightful user experience. Innovative features like interactive animation and class art empower learners to maintain motivation and achieve better learning outcomes.
Product Portfolio and Educational Impact
The company’s product suite extends beyond traditional language courses. It offers diversified solutions including Super Duolingo for an enhanced learning experience, Duolingo For Schools which supports classroom integration, and specialized apps such as Duolingo ABC and Duolingo Math that broaden its educational reach. Each product is meticulously designed to address specific learning needs while adhering to Duolingo’s overarching mission to democratize education worldwide. By integrating engaging design with advanced analytics, Duolingo consistently delivers a learning experience that is both effective and appealing to a global audience.
Market Position and Competitive Landscape
Duolingo has firmly established itself as a key player in the educational technology industry. It is recognized as the top grossing app in the Education category on both Google Play and the Apple App Store—a testament to its widespread adoption and innovative platform design. In a competitive market characterized by rapidly evolving digital education tools, Duolingo’s blend of artful animation, state-of-the-art technology, and comprehensive course offerings positions it as a standout option for learners of all ages. The company continually refines its approach to ensure that its offerings remain both accessible and engaging, thereby setting a high benchmark within the edtech space.
User-Centric Design and Strategic Investments
Central to Duolingo's strategic vision is its dedication to creative design and user experience. The company invests heavily in visual storytelling and interactivity, as highlighted by its integration of world-class motion design talent to further enhance the product’s aesthetic and functional appeal. This commitment to design not only boosts engagement but also serves as an educational tool in itself, making the learning process more intuitive and enjoyable. Duolingo’s investment in creative talent and advanced technological solutions reflects its broader strategy to combine art, education, and technology, ensuring that the platform evolves with user expectations and industry standards.
Expertise and Educational Commitment
Duolingo's operations are underpinned by a deep commitment to educational excellence and innovative learning methodologies. The company continuously leverages expert insights and user data to update its learning modules, ensuring that its courses are both current and pedagogically sound. By addressing common challenges in language acquisition through a mix of gamified elements and targeted test assessments, Duolingo effectively bridges the gap between traditional education and the demands of a digital, mobile-first learning environment.
Key Takeaways
- Innovative Learning Platform: Utilizes advanced AI and data analytics to offer personalized, engaging language-learning experiences.
- Diverse Revenue Streams: Combines subscriptions, in-app advertising, in-app purchases, and language certification tests for a sustainable financial model.
- User-Centric Design: Prioritizes engaging visuals, motion design, and gamification to maintain high user engagement and improve learning outcomes.
- Global Educational Impact: Extends its portfolio beyond language learning with educational apps that support early learning and subject-specific enrichment.
- Competitive Position: Dominates the educational app market on major mobile platforms, ensuring wide accessibility and continual improvement.
Through these pillars, Duolingo not only maintains its leadership in the edtech space but also demonstrates a profound commitment to making quality education universally available. The company’s strategic integration of technology, data, and creative design continues to set new benchmarks in digital learning, ensuring that its platform remains a central resource for learners worldwide.
Duolingo CTO and Co-Founder Severin Hacker executed multiple stock transactions on June 20, 2025, as reported in this Form 4 filing. The transactions included:
- Exercise of stock options for 10,000 shares at $38.08 per share
- Conversion of Class B shares to Class A shares
- Sale of 10,000 Class A shares in multiple transactions at prices ranging from $465.82 to $481.35
Following these transactions, Hacker holds 72 Class A shares directly and 105,252 stock options. Additionally, he maintains indirect ownership of 2,896,917 Class B shares through the SBH Trust. The sales were executed under a Rule 10b5-1 trading plan established on September 11, 2024. Hacker maintains significant ownership as a Director, 10% Owner, and Chief Technology Officer.
Duolingo director Mario Schlosser received 379 restricted stock units (RSUs) of Class A Common Stock on June 11, 2025. The RSUs were granted at $0 cost and represent direct ownership.
Key terms of the RSU grant:
- Each RSU converts to one share of Class A Common Stock upon vesting
- Vesting occurs at the earlier of: - First anniversary of grant date - Next annual stockholder meeting
- Vesting is contingent on continued service with Duolingo
This Form 4 filing, executed by Stephen Chen as attorney-in-fact on June 20, 2025, discloses standard equity compensation for a board member, indicating continued alignment between director and shareholder interests.
Director Gillian Munson of Duolingo received a new equity grant on June 11, 2025, consisting of 379 restricted stock units (RSUs) of Class A Common Stock. Following this transaction, Munson now beneficially owns 3,909 shares directly.
Key terms of the RSU grant:
- Each RSU converts to one share of Class A Common Stock upon vesting
- Vesting occurs at the earlier of: (1) first anniversary of grant date or (2) next annual stockholder meeting
- Vesting is contingent on continued service with Duolingo
- The RSUs were granted at $0 cost to the director
This Form 4 filing was submitted by Stephen Chen as Attorney-in-Fact for Munson on June 18, 2025, within the required reporting timeline for insider transactions.
Duolingo director Sara Clemens received a grant of 379 restricted stock units (RSUs) on June 11, 2025. Following this transaction, Clemens beneficially owns 3,954 shares of Class A Common Stock directly.
Key terms of the RSU grant:
- Each RSU converts to one share of Class A Common Stock upon vesting
- Vesting occurs at the earlier of: (1) first anniversary of grant date or (2) next annual stockholder meeting
- Vesting is contingent on continued service with Duolingo
- The RSUs were granted at $0 cost to the director
This Form 4 filing represents standard equity compensation for a board member, filed in compliance with SEC regulations requiring disclosure of insider transactions. The transaction was executed under normal board compensation arrangements.
Duolingo director Bonnie Ross received a grant of 379 restricted stock units (RSUs) on June 11, 2025. The RSUs represent the right to receive an equal number of Class A Common Stock shares upon vesting.
Key terms of the RSU grant:
- Grant price: $0
- Vesting schedule: 100% vests at earlier of (i) first anniversary of grant date or (ii) next annual stockholder meeting
- Vesting condition: Continued service with Duolingo
- Each RSU converts to one share of Class A Common Stock upon vesting
This Form 4 filing, reported on June 28, 2025, reflects standard equity compensation for board service. The transaction was executed under direct ownership.
Duolingo director John Osborne Lilly III received a grant of 379 restricted stock units (RSUs) on June 11, 2025. Following this transaction, Lilly owns a total of 6,904 shares of Class A Common Stock directly.
Key terms of the RSU grant:
- Each RSU converts to one share of Class A Common Stock upon vesting
- Vesting occurs at the earlier of: (1) first anniversary of grant date or (2) next annual stockholder meeting
- Vesting is contingent on continued service with Duolingo
- The RSUs were granted at $0 cost to the director
This Form 4 filing represents standard equity compensation for a board member, indicating continued alignment between director and shareholder interests through stock ownership.
Duolingo director James H. Shelton received 379 restricted stock units (RSUs) on June 11, 2025, as reported in this Form 4 filing. Following the transaction, Shelton now owns 4,632 shares of Class A Common Stock directly.
Key details of the RSU grant:
- RSUs were granted at $0 exercise price
- Each RSU converts to one share of Class A Common Stock upon vesting
- Vesting occurs at the earlier of: - One year from grant date - Next annual stockholder meeting
- Vesting is contingent on continued service with Duolingo
This equity grant appears to be part of Duolingo's director compensation program. The transaction was reported through an attorney-in-fact on June 18, 2025.
Duolingo director William B. Gordon received a grant of 379 restricted stock units (RSUs) on June 11, 2025. Following this transaction, Gordon now beneficially owns 76,414 shares of Class A Common Stock directly.
Key terms of the RSU grant:
- Each RSU converts to one share of Class A Common Stock upon vesting
- Vesting occurs at the earlier of: (1) first anniversary of grant date or (2) next annual stockholder meeting
- Vesting is contingent on Gordon's continued service to Duolingo
- The RSUs were granted at $0 cost to Gordon
This Form 4 filing was submitted by Stephen Chen as attorney-in-fact for Gordon on June 18, 2025, within the required reporting timeline for insider transactions.
Duolingo director Amy Bohutinsky received a grant of 379 restricted stock units (RSUs) on June 11, 2025. Following this transaction, Bohutinsky now beneficially owns 5,527 shares of Class A Common Stock directly.
Key terms of the RSU grant:
- Each RSU converts to one share of Class A Common Stock upon vesting
- Vesting occurs at the earlier of: (1) first anniversary of grant date or (2) next annual stockholder meeting
- Vesting is contingent on continued service with Duolingo
- The RSUs were granted at $0 cost to the director
This Form 4 filing represents standard equity compensation for board service, reflecting Duolingo's practice of providing directors with stock-based incentives to align their interests with shareholders.
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