Duolingo, Inc.'s SEC filings document its Nasdaq-listed Class A common stock, operating results furnished on Form 8-K, and governance matters presented through proxy materials. The filings cover quarterly and annual financial-result releases, preliminary operating metrics, shareholder-letter exhibits and amendments to furnished earnings materials.
Duolingo filings also record capital-allocation disclosures, including a share repurchase authorization, and public-company governance items such as annual meeting proposals, board and committee matters, executive compensation, equity awards and leadership appointments. These records describe the company's reporting controls, stockholder voting framework and corporate actions as a public mobile learning platform.
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.
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.