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. reported strong Q3 results. Revenue rose to $271.7 million from $192.6 million a year ago as subscriptions and other revenue streams grew. Net income jumped to $292.2 million, primarily due to a one-time income-tax benefit from the release of a valuation allowance on deferred tax assets.
Operational momentum continued: monthly active users reached 135.3 million, daily active users hit 50.5 million, and paid subscribers grew to 11.5 million. Adjusted EBITDA increased to $80.0 million, reflecting scale benefits while the company continued investing in R&D and growth.
The balance sheet strengthened with $1.01 billion in cash and cash equivalents and $441.7 million in deferred revenue, supporting future revenue recognition. Duolingo closed a July 2025 acquisition for $33.1 million cash (goodwill $24.8 million), and expanded its Pittsburgh headquarters lease through 2036, adding a right‑of‑use asset of $35.6 million.
Duolingo, Inc. (DUOL) furnished an update on its performance by announcing financial results for the nine months ended September 30, 2025. The company provided these results through a press release and a shareholder letter dated November 5, 2025.
Consistent with Item 2.02, the information, including Exhibit 99.1 (press release), is being furnished, not filed under General Instruction B.2 and is not subject to Section 18 liabilities. Duolingo also included Exhibit 99.2 (shareholder letter) dated November 5, 2025.
Duolingo (DUOL) insider activity: Co‑Founder/CTO and director Severin Hacker reported multiple transactions on 10/20/2025. He acquired 10,000 Class A shares at $38.08 via option exercise and then executed open‑market sales of 10,000 shares in multiple trades at prices from $305.86 to $324.10. The sales were made under a Rule 10b5‑1 plan adopted on September 11, 2024.
He also reported the settlement of 60,000 performance‑based RSUs, with 31,770 shares withheld for taxes at $312.73. Following the reported transactions, direct holdings shown in Table I were 72 Class A shares. An additional 2,886,917 Class A shares are held indirectly by the SBH Trust, of which he is trustee.
Duolingo (DUOL) insider activity: On 10/20/2025, President & CEO, Director, 10% owner and Co‑Founder Luis von Ahn reported multiple equity transactions. 120,000 performance‑based RSUs were settled into 120,000 shares of Class B common stock, then 120,000 Class B shares were converted into 120,000 Class A shares. To cover taxes, 51,768 Class A shares were withheld at $312.73 per share.
Following these transactions, the report lists 780,000 performance‑based RSUs beneficially owned and 3,218,403 shares of Class B common stock beneficially owned. Each Class B share is convertible into one Class A share and is subject to automatic conversion under specified conditions.
Duolingo, Inc. filed a Form 144 notice reporting a proposed sale of 1,000 shares of common stock through Morgan Stanley Smith Barney LLC on 10/08/2025. The filing shows an aggregate market value of $319,980, implying a per‑share market price near $319.98. The shares were originally issued as founders' shares acquired on 08/25/2011, and no other sales by the filer are reported in the past three months. The filing includes the usual representation that the seller is not aware of undisclosed material adverse information.
Duolingo insider Severin Hacker reported multiple transactions dated 10/06/2025. Mr. Hacker exercised a stock option to acquire 10,000 shares at an exercise price of $38.08 and simultaneously sold 10,000 Class A shares in multiple brokered trades under a Rule 10b5-1 plan at weighted average prices ranging from $316.79 to $329.19. After the activity his direct beneficial holdings of Class A common stock are reported as 72 shares, with additional direct and indirect holdings shown as exercised options and Class B/Class A shares, including 2,886,917 Class A shares held indirectly in a trust.
Duolingo, Inc. notice records a proposed sale of 40,000 common shares by an insider via Morgan Stanley Smith Barney, with an aggregate market value of $12,905,200 and an approximate sale date of 10/06/2025 on NASDAQ. The securities were acquired the same day by exercise of stock options and paid in cash. The filing also discloses six prior 10b5-1 plan sales by the same person, each for 10,000 shares between 07/07/2025 and 09/19/2025, producing gross proceeds ranging from $2,685,462 to $3,928,885. The signer represents they have no undisclosed material adverse information and, where applicable, relies on a written trading plan or instructions that satisfy Rule 10b5-1.
Natalie Glance, Chief Engineering Officer of Duolingo, Inc. (DUOL), reported multiple open-market sales of Class A common stock executed on 10/01/2025 pursuant to a Rule 10b5-1 trading plan adopted on 11/14/2024. The filings show nine sale entries totaling 3,283 shares sold at weighted-average prices reported in footnotes, with transaction price ranges between $303.45 and $320.21. Following these disposals, the reporting person directly beneficially owns 116,171 shares and indirectly owns 130 shares through a family member, for combined beneficial ownership of 116,301 shares.
Severin Hacker, Duolingo Chief Technology Officer and co-founder, reported option exercise and planned sales under a Rule 10b5-1 plan. The filing shows a $38.08 stock option exercised to acquire 10,000 shares on 09/19/2025. Those 10,000 shares were subsequently sold in multiple transactions under a 10b5-1 plan adopted September 11, 2024, for weighted-average prices reported in five separate sale groups ranging from about $286.26 to $291.15, generating aggregate sales of 10,000 shares. After the option exercise and sales, the reporting person shows 72 shares of Class A common stock directly owned and larger holdings of Class B and indirect holdings, including 2,886,917 Class A-equivalent shares held indirectly through the SBH Trust (Reporting Person is trustee).
Stephen C. Chen, General Counsel of Duolingo, Inc. (DUOL), exercised stock options to acquire 1,700 shares of Class A common stock on 09/18/2025 at an exercise price of $14.42 per share. The filing shows the option shares were fully vested and exercisable. After the reported transaction, Mr. Chen directly beneficially owned 34,338 shares of Class A common stock and held derivative securities covering 2,506 shares. The derivative line reflects that 1,700 option shares were acquired on the transaction date and that his total derivative holdings following the transaction are 2,506, with the newly acquired options exercisable through 03/10/2030.