Robert F Spillane sold $246K of MGNI stock

Robert F Spillane, Dir of Magnite, Inc. (MGNI), sold 10,363 shares of MGNI stock worth $246K, per an SEC Form 4 filed Sep 16, 2026.

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

The trade happened on Sep 14, 2026, 2 days before it was made public.

MGNI has moved +14.9% since the trade date, from $23.84 to $27.39 (Nov 6, 2026 close).