AFFILIATED MANAGERS GROUP, INC. — Board/Management Information 2025

Jun 6, 2025

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(D)

OF THE SECURITIES EXCHANGE ACT OF 1934

Date of report (Date of earliest event reported): June 3, 2025

AFFILIATED MANAGERS GROUP, INC.

(Exact Name of Registrant as Specified in Its Charter)

Delaware

(State or Other Jurisdiction of Incorporation)

001-13459	04-3218510
(Commission File Number)	(IRS Employer Identification No.)

777 South Flagler Drive , West Palm Beach , Florida 33401

(Address of Principal Executive Offices)

(800) 345-1100

(Registrant’s Telephone Number, Including Area Code)

N/A

(Former Name or Former Address, if Changed Since Last Report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions ( see General Instruction A.2. below):

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common Stock ($0.01 par value)	AMG	New York Stock Exchange
5.875% Junior Subordinated Notes due 2059	MGR	New York Stock Exchange
4.750% Junior Subordinated Notes due 2060	MGRB	New York Stock Exchange
4.200% Junior Subordinated Notes due 2061	MGRD	New York Stock Exchange
6.750% Junior Subordinated Notes due 2064	MGRE	New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

ITEM 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

On June 3, 2025, Thomas M. Wojcik was appointed President of Affiliated Managers Group, Inc. (the “Company”). Mr. Wojcik will also continue to serve as Chief Operating Officer. Jay C. Horgen, previously President and Chief Executive Officer, will continue as Chief Executive Officer of the Company.

In connection with his appointment, the Compensation Committee of the Company’s Board of Directors approved a one-time award of restricted stock units under the Company’s 2020 Equity Incentive Plan to Mr. Wojcik, with a fair value at the time of grant of $5,000,000, vesting in March 2030 and fully subject to performance-based conditions, to further align Mr. Wojcik with the objective of long-term value creation for the Company’s stockholders.

Information about Mr. Wojcik required under Item 401(b), (d), and (e), and Item 404(a) of Regulation S-K is incorporated by reference from the Company’s definitive proxy statement on Schedule 14A filed with the Securities and Exchange Commission on April 11, 2025.

ITEM 7.01 Regulation FD Disclosure.

On June 3, 2025, the Company issued a press release announcing the appointment described above, which is furnished as Exhibit 99.1 hereto and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liability of that section, nor shall it be deemed incorporated by reference into any filing made by the Company under the Securities Act of 1933, as amended, or the Exchange Act, except as expressly set forth by specific reference in such filing.

ITEM 9.01 Financial Statements and Exhibits.

(d) Exhibits.

Exhibit No.	Description
99.1	Press Release issued by the Company on June 3, 2025.
104	Cover Page Interactive Data File (the cover page tags are embedded within the Inline XBRL document).

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

AFFILIATED MANAGERS GROUP, INC. — By:	/s/ Kavita Padiyar
Name:	Kavita Padiyar
Title:	General Counsel and Corporate Secretary

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