Kathryn Guarini sold $360K of REGN stock

Kathryn Guarini, Dir of Regeneron Pharmaceuticals, Inc. (REGN), sold 400 shares of REGN stock worth $360K, per an SEC Form 4 filed Nov 3, 2026.

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

The trade happened on Oct 30, 2026, 4 days before it was made public.

REGN has moved -0.9% since the trade date, from $927.89 to $919.96 (Nov 9, 2026 close).