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.
This page provides access to Duolingo, Inc. (NASDAQ: DUOL) SEC filings, offering investors and researchers a structured view of the company’s regulatory disclosures. Duolingo’s Class A common stock is registered under Section 12(b) of the Exchange Act and trades on The Nasdaq Stock Market under the symbol DUOL, as noted in its Form 8-K filings.
For Duolingo, SEC filings such as annual reports on Form 10-K and quarterly reports on Form 10-Q typically contain detailed information about its mobile learning platform, revenue sources, and risk factors. The company has identified four predominant sources of revenue—time-based subscriptions, in-app advertising placement by third parties, the Duolingo English Test, and in-app purchases—so investors can use periodic reports to review how these areas contribute to overall performance over time.
Current reports on Form 8-K, like those referenced in the provided filings, are used by Duolingo to announce material events, including results of operations and financial condition for specific periods. These filings often accompany press releases and shareholder letters that discuss metrics such as bookings, daily active users, and revenue growth. They also confirm the company’s status as a Nasdaq-listed issuer and provide basic security information.
On this page, users can review Duolingo’s historical and recent SEC submissions and take advantage of AI-powered summaries that explain key points in plain language. Real-time updates from the SEC’s EDGAR system help surface new filings as they are released, while AI-generated highlights can assist in understanding complex sections of lengthy documents, including financial statements and management’s discussion and analysis.
In addition to periodic and current reports, investors may also consult proxy statements for governance and compensation information, and Forms 3, 4, and 5 for insider ownership and transaction details when available. Together, these filings offer a comprehensive regulatory record of Duolingo’s activities as a public company.
Duolingo, Inc. (DUOL) notice of proposed sale under Rule 144 shows an insider plans to sell 1,282 restricted common shares through Morgan Stanley Smith Barney LLC, with an aggregate market value reported as $421,820.56. The filing states the shares were acquired on 08/15/2025 from the issuer as restricted stock and payment was recorded as 08/15/2025. The filer also reported a prior sale by the same person of 2,635 common shares on 05/16/2025 generating gross proceeds of $1,388,480.36. The notice includes the standard representation that the seller is not aware of undisclosed material adverse information about the issuer.
Matthew Skaruppa, Chief Financial Officer of Duolingo, Inc. (DUOL), reported a non-derivative disposition of Class A common stock on 08/14/2025. The Form 4 shows a transaction coded G disposing of 2,522 shares at a reported price of $0, leaving 55,701 shares beneficially owned after the transaction. The filing was submitted as a single reporting person filing and signed on behalf of Mr. Skaruppa by an attorney-in-fact.
Natalie Glance, Chief Engineering Officer at Duolingo (DUOL), reported a Form 4 disclosing a transaction dated 08/12/2025 in Class A common stock. The filing shows a transaction code G for 2,300 shares at a reported price of $0. After the reported transaction she beneficially owned 124,645 shares directly and 130 shares indirectly through her son.
Capital World Investors reports beneficial ownership of 2,343,620 shares of Duolingo common stock, representing 6.0% of the 39,260,633 shares the filer believes are outstanding. The filing discloses sole voting power over 2,335,112 shares and sole dispositive power over 2,343,620 shares, indicating CWI can independently vote and dispose of the shares it holds.
The statement is submitted on Schedule 13G by an entity classified as an investment adviser (IA) and includes a certification that the securities are held in the ordinary course of business and not to change or influence control of the issuer, consistent with a passive ownership stake.
Baillie Gifford & Co has filed a Schedule 13G revealing a 5.6 % beneficial stake in Duolingo, Inc. (DUOL) as of 30 June 2025. The Scottish investment adviser reports ownership of 2,198,891 ordinary shares, crossing the 5 % reporting threshold.
- Sole voting power: 2,018,176 shares
- Sole dispositive power: 2,198,891 shares
- Shared voting/dispositive power: 0
The shares are held on behalf of advisory clients and were acquired in the ordinary course of business. As a passive Rule 13d-1(b) filing, Baillie Gifford states no intent to influence control of the issuer.
Key take-aways for investors: the position underscores continuing institutional support for DUOL, but a block of this size could become a liquidity overhang should the firm trim its holdings.
Form 4 highlights for Duolingo (DUOL): Co-founder, CTO, director and >10% owner Severin Hacker reported a series of insider transactions dated 8 Aug 2025.
- Option exercise: 10,000 Class B options exercised at $38.08 (cost ~$0.38 M).
- Conversions: Two line-items show 20,000 Class B shares converted to Class A; 10,000 of the converted shares were immediately sold.
- Sales: 10,000 Class A shares sold in 12 tranches between $338.80–$355.15; volume-weighted average ≈ $344, generating proceeds of roughly $3.4 M. Sales were executed under a Rule 10b5-1 plan adopted 11 Sep 2024.
- Post-trade ownership: Direct Class A stake falls to 72 shares; direct derivative holdings total 86,075 options; indirect trust continues to hold 2,896,917 Class B shares, underscoring continued majority control.
No earnings data or company guidance is included; the filing solely documents routine insider activity. Given the small size of the sale relative to Hacker’s remaining 2.9 M-share economic interest, market impact is likely limited.