Duolingo CEO exercises 28,292 options, sells all for $4.25M under 10b5-1

von Ahn Luis sold 120,000 shares of Performance-Based Restricted Stock Units at $N/A on 2026-05-27; von Ahn Luis bought 120,000 shares of Class B Common Stock at $N/A on 2026-05-27; von Ahn Luis sold 54,875 shares of Class B Common Stock at $107.82 on 2026-05-27

von Ahn Luis bought 50,000 shares of Class A Common Stock at $N/A on 2026-05-11; von Ahn Luis sold 50,000 shares of Class A Common Stock at $N/A on 2026-05-11; von Ahn Luis sold 50,000 shares of Class B Common Stock at $N/A on 2026-05-11

von Ahn Luis sold 120,000 shares of Performance-Based Restricted Stock Units at $N/A on 2026-02-17; von Ahn Luis bought 120,000 shares of Class B Common Stock at $N/A on 2026-02-17; von Ahn Luis sold 53,640 shares of Class B Common Stock at $112.57 on 2026-02-17