Sean D Keohane sold $11.5M of CBT stock

Sean D Keohane, President and CEO of Cabot Corp (CBT), sold 134,895 shares of CBT stock worth $11.5M, per an SEC Form 4 filed Aug 31, 2026.

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

The trade happened on Aug 28, 2026, 3 days before it was made public.

CBT has moved -15.1% since the trade date, from $83.65 to $71.05 (Nov 6, 2026 close).