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.
Duolingo, Inc. (DUOL) officer and Chief Business Officer Robert Meese reported an automatic sale of company stock related to equity compensation. On 11/17/2025, 1,444 shares of Class A common stock were sold at a price of $177.95 per share to satisfy tax withholding obligations tied to the vesting of Restricted Stock Units and share delivery. After this transaction, he beneficially owns 123,636 shares directly, along with additional indirect holdings through two qualified minor's trusts.
Duolingo (DUOL): Insider transaction by CTO/Co‑Founder Severin Hacker. A Form 4 reports that on 11/04/2025 he exercised stock options for 10,000 shares at $38.08, converted Class B into Class A on a one‑for‑one basis, and executed multiple Class A sales under a Rule 10b5‑1 trading plan adopted on September 11, 2024. The sales were reported in weighted‑average price tranches ranging from $257.23 to $267.38. Following the reported transactions, direct Class A holdings were 72 shares. Indirect holdings include 2,886,917 Class A shares held by the SBH Trust dated March 10, 2020.
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.