Duolingo GC Stephen Chen sold 1,977 shares at $113.61 on May 18, SEC filing shows

Stephen Chen, Duolingo’s general counsel, sold 1,977 Class A common shares on May 18, according to a Form 4 filed with the U.S. Securities and Exchange Commission. The filing shows the sale was reported under a Rule 10b5-1 trading plan, the type of preset plan corporate insiders can use to buy or sell stock. After the transactions, Chen directly owned 52,807 shares of Duolingo stock. The filing was submitted to the SEC on May 19. ### Which filing shows the sale? The SEC filing is a Form 4, the disclosure insiders use to report changes in beneficial ownership. Chen is listed in the filing as an officer of Duolingo with the title “General Counsel,” and Duolingo is identified by ticker symbol DUOL. (sec.gov) The same filing says the earliest transaction date covered was May 15, 2026, and it includes both a stock award and later sales. For the May 18 activity, the filing records two separate sale lines rather than one block transaction. ### What exactly did Chen sell on May 18? (sec.gov) The Form 4 shows Chen sold 1,277 shares on May 18 at $113.2714 each and another 700 shares the same day at $114.2216 each. Those two trades add up to 1,977 shares sold on May 18. The combined proceeds from those two sale lines come to about $224,602.70, based on the prices and share counts in the filing. (sec.gov) That implies a weighted average sale price of about $113.61 per share. ### Why do some reports say $224,606.97? Some secondary market trackers and news aggregation sites rounded the May 18 sales into a single figure of $224,606.97 at an average price of $113.61. (sec.gov) The SEC filing itself lists two separate sale prices, and the arithmetic from those reported prices produces total proceeds of about $224,602.70. That difference is small, but the SEC filing is the primary source. The filing also notes that the transaction was made pursuant to a Rule 10b5-1 plan, which is disclosed by a checked box near the top of the form. ### Was there other activity in the same filing? (sec.gov) The same Form 4 shows Chen received 24,411 Class A shares on May 15 at a listed price of $112.06, then sold 820 shares on May 15 at $112.16. Those entries appear alongside the two May 18 sales in Table I of the filing. (sec.gov) After all of the reported transactions in the filing, Chen’s direct ownership stood at 52,807 shares, according to the final ownership line in Table I. ### Where should readers look next? The SEC’s EDGAR database is the next place to watch for any additional Duolingo insider transactions, including future Form 4 filings by Chen or other executives. (sec.gov) Duolingo’s recent filing history also shows a Form 144 notice for Chen dated May 19, 2026, alongside other insider ownership filings for the company. (marketbeat.com)