Richard E Williams sold $457K of POWL stock

Richard E Williams, Dir of Powell Industries Inc (POWL), sold 2,250 shares of POWL stock worth $457K, per an SEC Form 4 filed Aug 17, 2026.

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

The trade happened on Aug 14, 2026, 3 days before it was made public.

POWL has moved -33.6% since the trade date, from $213.48 to $141.77 (Nov 12, 2026 close).