Karen L. Alvingham - Feb 5, 2024 Form 4 Insider Report for AFFILIATED MANAGERS GROUP, INC. (AMG)

Role: Director
Signature: /s/ Kavita Padiyar, Attorney-in-Fact
Stock symbol: AMG
Transactions as of: Feb 5, 2024
Transactions value $: $0
Form type: 4
Date filed: 2/7/2024, 05:20 PM
Previous filing: Jan 3, 2024
Next filing: Mar 7, 2024

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	AMG	Deferred Stock Units	Award	$0	+309		$0.00	309	Feb 5, 2024	Common Stock	309		Direct	F1
transaction	AMG	Restricted Stock Units	Award	$0	+638		$0.00	638	Feb 5, 2024	Common Stock	638		Direct	F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	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.
F2	Each restricted stock unit represents a right to receive one share of the Company's common stock upon vesting. The restricted stock units vest in full on March 5, 2025.

Content

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.

Each restricted stock unit represents a right to receive one share of the Company's common stock upon vesting. The restricted stock units vest in full on March 5, 2025.