Stephen C. Chen sold $648K of DUOL stock

Stephen C. Chen, General Counsel of Duolingo, Inc. (DUOL), sold 3,700 shares of DUOL stock worth $648K, per an SEC Form 4 filed Nov 5, 2026.

The sale was pre-arranged (a 10b5-1 plan or an option exercise), not a fresh decision.

The trade happened on Nov 4, 2026, 1 day before it was made public.

DUOL has moved -0.5% since the trade date, from $161.27 to $160.42 (Nov 6, 2026 close).