Sean Patrick Buckley sold $270K of Magnite, Inc. (MGNI) stock

Sean Patrick Buckley sold 11,030 shares of MGNI stock worth $270K, per an SEC Form 4 filed Aug 18, 2026.

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

The trade happened on Aug 15, 2026, 3 days before it was made public.

MGNI has moved +0.3% since the trade date, from $24.73 to $24.80 (Sep 22, 2026 close).