| Item 1. | |
| (a) | Name of issuer:
Affiliated Managers Group, Inc. |
| (b) | Address of issuer's principal executive offices:
777 South Flagler Drive, West Palm Beach, FL 33401 |
| Item 2. | |
| (a) | Name of person filing:
This Schedule 13G/A is filed jointly pursuant to that certain Joint Filing Agreement filed herewith as Exhibit 99.1 by: (1) Clarkston Capital Partners, LLC ("CCP") (2) Clarkston Companies, Inc. ("CC") (3) Modell Capital LLC ("MC") (4) Jeffrey A. Hakala (5) Gerald W. Hakala (6) Jeremy J. Modell |
| (b) | Address or principal business office or, if none, residence:
303 E Third St., Suite 110, Rochester, MI 48307 |
| (c) | Citizenship:
CCP and MC are Michigan limited liability companies. CC is a Michigan corporation. Jeffrey A. Hakala, Gerald W. Hakala, and Jeremy J. Modell (the "Individual Reporting Persons") are citizens of the United States of America. |
| (d) | Title of class of securities:
Common Stock |
| (e) | CUSIP No.:
008252108 |
| Item 3. | If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a: |
| (a) |  Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
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| (b) | Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
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| (c) | Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
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| (d) | Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
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| (e) |  An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
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| (f) | An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
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| (g) | A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
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| (h) | A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
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| (i) | A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
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| (j) | A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J),
please specify the type of institution:
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| (k) | Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
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| Item 4. | Ownership |
| (a) | Amount beneficially owned:
The information required by Item 4(a) is set forth in Row 9 of the cover page for each of the Reporting Persons and is incorporated herein by reference.
Based upon 30,225,132 shares of Common Stock, par value $0.01 per share ("Common Stock"), of Affiliated Managers Group, Inc. (the "Issuer") outstanding as of November 5, 2024, as reported in the Issuer's quarterly report on Form 10-Q filed with the Securities and Exchange Commission on November 7, 2024. |
| (b) | Percent of class:
5.20% |
| (c) | Number of shares as to which the person has:
|
| | (i) Sole power to vote or to direct the vote:
718,179
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| | (ii) Shared power to vote or to direct the vote:
777,950
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| | (iii) Sole power to dispose or to direct the disposition of:
718,179
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| | (iv) Shared power to dispose or to direct the disposition of:
854,010
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| Item 5. | Ownership of 5 Percent or Less of a Class. |
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| Item 6. | Ownership of more than 5 Percent on Behalf of Another Person. |
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If any other person is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, such securities, a statement to that effect should be included in response to this item and, if such interest relates to more than 5 percent of the class, such person should be identified. A listing of the shareholders of an investment company registered under the Investment Company Act of 1940 or the beneficiaries of employee benefit plan, pension fund or endowment fund is not required.
The shares reported in this statement have been purchased by CCP on behalf of CCP's discretionary clients or by a control person of CCP in an account over which such control person has beneficial ownership. CCP's clients have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of such securities held in their accounts, subject to CCP's general authority to invest and reinvest the assets in each account under its management. |
| Item 7. | Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person. |
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If a parent holding company has filed this schedule, pursuant to Rule 13d-1(b)(ii)(G), so indicate under Item 3(g) and attach an exhibit stating the identity and the Item 3 classification of the relevant subsidiary. If a parent holding company has filed this schedule pursuant to Rule 13d-1(c) or Rule 13d-1(d), attach an exhibit stating the identification of the relevant subsidiary.
With respect to CC, MC and the Individual Reporting Persons, see Item 4. |
| Item 8. | Identification and Classification of Members of the Group. |
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Not Applicable
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| Item 9. | Notice of Dissolution of Group. |
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Not Applicable
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