Justin B. Klee sold $3M of AMLX stock

Justin B. Klee, Co-Chief Executive Officer of Amylyx Pharmaceuticals, Inc. (AMLX), sold 100,000 shares of AMLX stock worth $3M, per an SEC Form 4 filed Nov 12, 2026.

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

The trade happened on Nov 9, 2026, 3 days before it was made public.

AMLX has moved +5.3% since the trade date, from $30.21 to $31.80 (Nov 11, 2026 close).