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AFFILIATED MANAGERS GROUP, INC. Director's Dealing 2025

Aug 18, 2025

30843_dirs_2025-08-18_36798808-dab3-42e5-9261-f9e41dead0f4.zip

Director's Dealing

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SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: AFFILIATED MANAGERS GROUP, INC. (AMG)
CIK: 0001004434
Period of Report: 2025-08-14

Reporting Person: STARR LOREN M (Director)

Non-Derivative Transactions

Date Security Code Shares Price A/D Holdings After Ownership
2025-08-15 Common Stock M 544 Acquired 1285 Direct

Derivative Transactions

Date Security Exercise Price Code Shares A/D Expiration Underlying Ownership
2025-08-14 Deferred Stock Units $ A 334 Acquired Common Stock (334) Direct
2025-08-15 Stock Units $ M 544 Disposed Common Stock (544) Direct

Footnotes

F1: Reflects the vesting of a previously reported award. Award vested in 2025.

F2: Reflects cash fees that the director has elected to defer under the Company's deferred compensation plan, which are notionally invested in a measurement fund tracking the Company's common stock during the deferral period. Each deferred stock unit is equal to one share of the Company's common stock, and becomes distributable in common stock upon the reporting person's separation from service as a member of the Board of Directors of the Company.

F3: Inclusive of previously reported deferred stock units.