Karen L. Alvingham - 15 Aug 2021 Form 4 Insider Report for AFFILIATED MANAGERS GROUP, INC. (AMG)

Role: Director
Signature: /s/ David M. Billings, Attorney-in-Fact
Issuer symbol: AMG
Transactions as of: 15 Aug 2021
Net transactions value: -$4,907
Form type: 4
Filing time: 17 Aug 2021, 17:08:19 UTC
Previous filing: 29 Jul 2021
Next filing: 04 Jan 2022
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	+382	+47%	$0.000000	1,189	15 Aug 2021	Direct	F1
transaction	AMG	Common Stock	Tax liability	$4,907	-29	-2.4%	$169.20	1,160	15 Aug 2021	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	-382	-25%	$0.000000	1,149	15 Aug 2021	Common Stock	382		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 portion of a previously reported restricted stock unit award. The award vests in four equal parts on August 15, 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.