AMG (NYSE: AMG) counsel sells 2,200 shares and receives new stock awards

Rhea-AI Filing Summary

Affiliated Managers Group General Counsel Kavita Padiyar reported a mix of stock transactions. On March 9, 2026, she sold 2,200 shares of common stock in an open-market transaction at a weighted average price of $278.24 per share, leaving her with 42,672 directly held shares. The sale prices ranged from $278.00 to $278.51.

On March 5, 2026, previously reported stock unit awards vested and were converted into 2,288 shares of common stock, and she received additional grants of 2,426 common shares and 1,191 stock units. A portion of shares (2,282) was automatically surrendered to the company to satisfy tax withholding obligations. The new award issued under the 2020 Equity Incentive Plan vests in four equal installments on March 5 of 2027, 2028, 2029, and 2030.

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

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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^*

Padiyar Kavita

(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)
	General Counsel & Corp. Sec.

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		2,288	A	$0(1)	44,728	D
Common Stock	03/05/2026		A		2,426	A	$0(2)	47,154	D
Common Stock	03/05/2026		F		2,282(3)	D	$299.18	44,872	D
Common Stock	03/09/2026		S		2,200	D	$278.24(4)	42,672	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			2,288	(1)	(1)	Common Stock	2,288	$0	2,670	D
Stock Units	(5)	03/05/2026		A		1,191		(5)	(5)	Common Stock	1,191	$0	1,191	D

Explanation of Responses:

1. Reflects the vesting of previously reported awards. Awards vest 2023-2029.

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 $278.00 to $278.51. Specific transaction details will be provided to the SEC upon request.

5. The award, issued under the Company's 2020 Equity Incentive Plan, vests in four equal installments on each of March 5, 2027, 2028, 2029, and 2030.

	/s/ Kavita Padiyar	03/09/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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FAQ

What insider transactions did AMG's Kavita Padiyar report on this Form 4?

Kavita Padiyar reported a combination of sales, vesting, and new equity awards. She sold 2,200 AMG common shares, had stock units vest into shares, received additional common stock and stock unit grants, and surrendered shares to cover tax withholding obligations tied to these awards.

How many AMG shares did Kavita Padiyar sell and at what price?

She sold 2,200 shares of Affiliated Managers Group common stock. The weighted average sale price was $278.24 per share, with individual sale prices ranging from $278.00 to $278.51, as disclosed in the Form 4 transaction footnote.

What AMG equity awards vested or were exercised for Kavita Padiyar?

Previously reported stock unit awards vested and were converted into 2,288 AMG common shares. These transactions reflect the vesting and exercise of earlier grants whose awards vest over 2023–2029, as described in the footnotes to the insider transaction disclosure.

Did Kavita Padiyar receive new AMG equity grants in this filing?

Yes. She received a grant of 2,426 AMG common shares and 1,191 stock units. The 1,191-unit award under the 2020 Equity Incentive Plan vests in four equal installments on March 5 of 2027, 2028, 2029, and 2030, subject to continued terms.

Why were some AMG shares surrendered by Kavita Padiyar in this Form 4?

The Form 4 notes 2,282 AMG common shares were automatically surrendered to the company. This surrender satisfied tax withholding obligations related to the vesting of equity awards, rather than representing an open-market sale initiated for investment purposes.

How many AMG shares does Kavita Padiyar hold after these transactions?

Following the reported transactions, Kavita Padiyar directly holds 42,672 shares of AMG common stock. She also holds 2,670 stock units after the exercise and new grant activity disclosed, reflecting her ongoing equity-based compensation position with the company.