AMG (AMG) president exits as equity awards vest and 8,000 shares sold

Rhea-AI Filing Summary

Affiliated Managers Group president and COO Thomas M. Wojcik reported multiple share transactions around his employment termination. On March 5, 2026, previously reported equity awards vested and a March 2023 performance award settled, adding 7,272 common shares from stock units and a separate 10,619-share grant. To cover tax withholding on these vestings, 9,136 shares of common stock were automatically surrendered to the company. On March 6, 2026, in connection with his termination and the cancellation of all then-outstanding unvested awards, he executed an open‑market sale of 8,000 common shares at a weighted average price of $286.30, leaving 159,465 common shares directly owned.

Positive

• None.

Negative

• President and COO departure with equity cancellations: All of Thomas M. Wojcik’s then-outstanding unvested equity awards were cancelled on March 6, 2026 in connection with his termination of employment, and he recorded an open‑market sale of 8,000 common shares.

Insights

Equity compensation and governance analyst

AMG’s president and COO exited with equity vesting, cancellations, and a net share reduction.

The transactions show how Thomas M. Wojcik’s equity awards were handled as he left Affiliated Managers Group. Previously granted stock units and a March 2023 performance award vested on March 5, 2026, creating 7,272 new common shares plus an additional 10,619-share award.

To satisfy tax obligations from these vestings, 9,136 shares were automatically surrendered at a price of $299.18 per share. On March 6, 2026, he sold 8,000 common shares in an open‑market transaction at a weighted average of $286.30, with individual prices between $285.89 and $286.69.

The footnotes state that all of his then‑outstanding unvested equity awards were cancelled and terminated on March 6, 2026 in connection with his termination of employment. After these moves, he directly owned 159,465 common shares, so the overall effect is a leadership departure combined with a modest net decrease in his reported common‑stock holdings.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

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X

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Wojcik Thomas M

(Last) (First) (Middle)

C/O AFFILIATED MANAGERS GROUP, INC.

777 SOUTH FLAGLER DRIVE

(Street)

WEST PALM BEACH FL 33401

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
AFFILIATED MANAGERS GROUP, INC. [ AMG ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	President and COO

3. Date of Earliest Transaction (Month/Day/Year)
03/05/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	03/05/2026		M		7,272	A	$0(1)	165,982	D
Common Stock	03/05/2026		A		10,619	A	$0(2)	176,601	D
Common Stock	03/05/2026		F		9,136(3)	D	$299.18	167,465	D
Common Stock	03/06/2026		S		8,000	D	$286.3(4)	159,465	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Stock Units	(1)	03/05/2026		M			7,272	(1)	(1)	Common Stock	7,272	$0	9,546	D

Explanation of Responses:

1. Reflects the vesting of previously reported awards. As previously disclosed, all of the reporting person's then-outstanding unvested equity awards were cancelled and terminated on March 6, 2026 in connection with the reporting person's termination of employment on such date.

2. Award granted in March 2023, which settled following the achievement of performance conditions previously described in the Company's annual meeting proxy statements.

3. Reflects the automatic surrender of shares of common stock to the Company to satisfy tax withholding obligations related to the vesting of the awards described above.

4. The sale reflects the weighted average sales price of the shares sold; the individual transaction prices ranged from $285.89 to $286.69. Specific transaction details will be provided to the SEC upon request.

	/s/ Kavita Padiyar, Attorney-in-Fact	03/09/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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FAQ

What does Thomas M. Wojcik’s Form 4 show for AMG (AMG)?

The Form 4 shows President and COO Thomas M. Wojcik had equity awards vest, surrendered shares for tax withholding, and sold 8,000 AMG common shares, leaving 159,465 shares directly owned after these March 2026 transactions.

How many AMG shares did Thomas M. Wojcik sell in this Form 4?

He reported an open‑market sale of 8,000 shares of Affiliated Managers Group common stock at a weighted average price of $286.30 per share, with individual trade prices ranging from $285.89 to $286.69, according to the Form 4 footnote.

What equity awards vested for AMG’s president Thomas M. Wojcik?

Previously reported awards vested on March 5, 2026, including a March 2023 performance award. This resulted in 7,272 common shares from stock units and a separate 10,619‑share grant, as detailed in the Form 4 and its accompanying footnotes.

Why were AMG shares surrendered by Thomas M. Wojcik in the filing?

The Form 4 states that 9,136 shares of common stock were automatically surrendered to Affiliated Managers Group to satisfy tax withholding obligations arising from the vesting of the reported equity awards, at a price of $299.18 per share.

What does the Form 4 say about Thomas M. Wojcik’s employment status at AMG?

A footnote explains that all of his then-outstanding unvested equity awards were cancelled and terminated on March 6, 2026, in connection with his termination of employment at Affiliated Managers Group on that same date.

How many AMG shares does Thomas M. Wojcik own after these transactions?

After the reported vesting, tax-withholding surrender, and open‑market sale, Thomas M. Wojcik directly owned 159,465 shares of Affiliated Managers Group common stock, as listed in the post‑transaction holdings column of the Form 4.