AFFILIATED MANAGERS GROUP, INC. — Director's Dealing 2025

Jul 3, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: AFFILIATED MANAGERS GROUP, INC. (AMG)
CIK: 0001004434
Period of Report: 2025-07-01

Reporting Person: Horgen Jay C. (Director, Chief Executive Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-07-01	Common Stock	M	75000	$74.49	Acquired	516120	Direct
2025-07-01	Common Stock	F	47191	$198.72	Disposed	468929	Direct
2025-07-02	Common Stock	G	14000	—	Disposed	454929	Direct
2025-07-02	Common Stock	G	14000	—	Acquired	34058	Indirect

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2025-07-01	Employee Stock Option (Right to Buy)	$74.49	M	75000	Disposed	2026-08-15	Common Stock (75000)	Direct

Footnotes

F1: The reporting person transferred 14,000 shares to a family trust of which the reporting person and his spouse are trustees, and for which the reporting person and members of his immediate family are the beneficiaries.