May 1, 2026 · Form 4 insider transaction
Cates G. Staley bought 172 shares of Affiliated Managers Group, Inc. at $0.00 per share, a transaction worth N/A. The trade was recorded as grant or award and disclosed on an SEC Form 4, filed 4 days after the transaction.
Each stock unit represents a right to receive one share of the Company's common stock upon vesting. The stock units vest in full on August 15, 2027.