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.
Natalie Glance, Chief Engineering Officer of Duolingo, sold 2,533 shares of Class A common stock on 08/15/2025 at $329.03 per share to satisfy tax withholding tied to the vesting of restricted stock units (RSUs). After the transaction she beneficially owned 122,112 shares directly and 130 shares indirectly (held by her son). The filing was submitted via attorney-in-fact Stephen Chen on 08/18/2025. This disclosure documents a routine, non-discretionary sale to cover tax obligations arising from equity compensation.
Duolingo insider sale tied to RSU tax withholding Robert Meese, Chief Business Officer, reported a sale of 1,444 shares of Duolingo Class A common stock on 08/15/2025 at $329.03 per share. The filing states these shares were automatically sold to satisfy tax withholding obligations upon vesting of restricted stock units. After the transaction, Meese directly beneficially owned 120,080 Class A shares. The filing also discloses indirect holdings of 1,800 Class A shares each held by the Eliot Meese Qualified Minor's Trust and the Isaac Meese Qualified Minor's Trust. The Form 4 is signed by an attorney-in-fact on behalf of Meese on 08/18/2025.
Duolingo, Inc. (DUOL) insider sale notice: The filing reports a proposed sale of 5,754 shares of Duolingo common stock through Morgan Stanley Smith Barney LLC with an approximate aggregate market value of $1,881,155.22. The filing lists the approximate date of sale as 08/18/2025 and reports 39,694,545 shares outstanding. The shares were acquired as Restricted Stock Units on 08/15/2024 and paid on that date. The form also discloses prior sales by the same person: 261 shares sold on 08/15/2025 for $85,877.67 and 2,709 shares sold under a Rule 10b5-1 plan on 07/01/2025 for $1,090,509.58.
Duolingo insider sale notice under Rule 144: This Form 144 reports a proposed sale of 2,533 shares of the issuer's common stock through Morgan Stanley Smith Barney LLC, with an aggregate market value of $833,441.10 and an approximate sale date of 08/15/2025 on NASDAQ. The filing states these shares were acquired as restricted stock on 08/15/2025 from the issuer and paid for on that date.
The form also discloses recent sales by the same person: 2,709 shares sold on 07/01/2025 for $1,090,581.46 and 3,267 shares sold on 05/16/2025 for $1,726,185.67. The filer attests there is no undisclosed material adverse information.
Duolingo insider sale notice: This Form 144 shows that Matthew Skaruppa intends to sell 2,797 shares of Duolingo common stock through Morgan Stanley Smith Barney on 08/15/2025 on NASDAQ, with an aggregate market value reported as $920,305.86. The shares were recorded as restricted stock acquired from the issuer on 08/15/2025 and payment is noted the same day. The filing also discloses that Mr. Skaruppa sold 3,573 shares on 05/16/2025 for gross proceeds of $1,887,802.30. By signing, the filer represents there is no undisclosed material adverse information about the issuer.
Duolingo, Inc. (DUOL) Form 144 notice reports a proposed sale of 1,444 shares of common stock, with an aggregate market value of $475,123.94, to be sold on or about 08/15/2025 on NASDAQ. The filing shows the shares were acquired as restricted stock from the issuer on 08/15/2025. The company’s outstanding common shares are listed as 45,821,907, making this sale a very small fraction of total shares outstanding. The filer certifies no undisclosed material adverse information and affirms compliance with Rule 144 disclosure requirements.
Stephen C. Chen, General Counsel of Duolingo, Inc. (DUOL), reported a non-derivative disposition of 750 shares of Class A common stock on 08/15/2025 via transaction code G indicating a gift. After the reported disposition, Mr. Chen beneficially owned 35,435 shares, held directly. The filing discloses the insider's transfer method and remaining direct ownership in clear, routine SEC Form 4 format.
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.