Karen L. Alvingham - 01 Jan 2024 Form 4 Insider Report for AFFILIATED MANAGERS GROUP, INC. (AMG)

Role: Director
Signature: /s/ Kavita Padiyar, Attorney-in-Fact
Issuer symbol: AMG
Transactions as of: 01 Jan 2024
Net transactions value: -$1,363
Form type: 4
Filing time: 03 Jan 2024, 17:23:31 UTC
Previous filing: 17 Aug 2023
Next filing: 07 Feb 2024
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	AMG	Common Stock	Options Exercise	$0	+122	+3.3%	$0.000000	3,775	01 Jan 2024	Direct	F1
transaction	AMG	Common Stock	Tax liability	$1,363	-9	-0.24%	$151.42	3,766	01 Jan 2024	Direct	F2

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	Stock Units	Options Exercise	$0	-122	-2.5%	$0.000000	4,840	01 Jan 2024	Common Stock	122		Direct	F1

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

Explanation of Responses:

Id	Content
F1	Reflects the vesting of a previously reported award. Award vests 2021-2024.
F2	Reflects the automatic surrender of shares of common stock to the Company to satisfy tax withholding obligations related to the vesting of the award described above.