Jay C. Horgen sold $5.9M of AMG stock

Jay C. Horgen, President and CEO of Affiliated Managers Group, Inc. (AMG), sold 17,500 shares of AMG stock worth $5.9M, per an SEC Form 4 filed Jun 8, 2026.

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

The trade was reported on Jun 8, 2026.

AMG has moved +16.9% since the trade date, from $336.62 to $393.45 (Nov 12, 2026 close).