Duolingo, Inc. filed its quarterly report on Form 10-Q with the U.S. Securities and Exchange Commission on November 4, 2026, covering the fiscal quarter ended September 30, 2026.

Key Highlights

  • Shares outstanding: As of November 3, 2026, Duolingo reported 40,779,003 shares of Class A common stock and 6,399,257 shares of Class B common stock outstanding.
  • Exchange listing: Class A common stock is listed on NASDAQ:DUOL under the trading symbol DUOL, with a par value of $0.0001 per share.
  • Filer classification: The company is classified as a large accelerated filer, not a smaller reporting company or emerging growth company.
  • Key operating metrics tracked: According to the filing, Duolingo manages its business by tracking daily active users (DAUs), paid subscribers, subscription bookings, and total bookings.
  • Forward-looking statements: The filing contains forward-looking statements subject to the cautionary language of the Private Securities Litigation Reform Act of 1995, including risks related to user retention, competition in online language learning, and AI technology reliance.

Duolingo's Third-Quarter 2026 Filing: Company Structure and Operating Focus

Duolingo, Inc., the Delaware-incorporated language learning platform headquartered at 141 S St Clair Street, Suite 501, Pittsburgh, Pennsylvania 15206, submitted its quarterly report for the period ended September 30, 2026. The company's Class A common stock trades on the Nasdaq Stock Market LLC under the symbol DUOL. The filing carries Commission File Number 001-40653 and reflects Duolingo's status as a large accelerated filer under Rule 12b-2 of the Exchange Act.

According to the filing, Duolingo tracks several operating metrics central to its business management, including daily active users (DAUs), paid subscribers, subscription bookings, and total bookings. The company's revenue model incorporates both subscription-based and advertising-based income streams, and the filing identifies reliance on third-party platforms to distribute its products and collect revenue as a named risk factor. The filing also notes the company's use of artificial intelligence and machine learning technologies as a component of its product development and operations.

The filing discloses a range of risk factors specific to Duolingo's business, including competition in the online language learning industry, the ability to retain and grow users, managing growth at scale, and the accuracy of user and operating metrics. The filing further notes risks associated with reliance on third-party hosting, cloud computing providers, and AI vendors. All forward-looking statements in the quarterly report are the company's own and are subject to its cautionary language as described in the filing.

What Was Disclosed

Duolingo, Inc. filed a Form 10-Q for the quarter ended September 30, 2026, disclosing share counts for both Class A and Class B common stock, its large accelerated filer status, key operating metrics tracked by management, and a range of company-specific risk factors related to its language learning platform business.