Company: MGRE
Filing Date: 2025-04-11
Form Type: DEF 14A
Source: 0001004434-25-000021
Chunk: 38

Company: AFFILIATED MANAGERS GROUP, INC.
Filing Date: 2025-04-11
Form: DEF 14A
Chunk 38
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 as described in our “2024 Compensation Program Overview and Enhancements” table on page 6.

28

Policies to Promote Director and Officer Equity Ownership We believe that equity ownership by AMG’s named executive officers and directors aligns their interests with those of our stockholders. AMG has two formal policies designed to promote the long-term accumulation and retention of equity in the Company by executives and directors. The Equity Holding Policy was first implemented in 2019, and together with the Equity Ownership Guidelines, represents an industry-leading set of policies to further cultivate an ownership mindset among senior executives, with direct and substantial alignment with stockholders through ownership of vested, unrestricted shares of AMG stock. In addition to these formal policies, AMG’s directors and executives have demonstrated their commitment to the long-term accumulation and retention of equity through open market purchases of shares of our common stock on multiple occasions. Since his May 2019 appointment, Mr. Horgen has purchased 52,000 shares in the open market and today owns 1.6% of AMG’s outstanding common stock. For the shares owned by year since 2022 by our Chief Executive Officer, other named executive officers, and executive officers and current independent directors in the aggregate, please see our “Governance Highlights” section on pag e 5.

| Equity Ownership Guidelines and Holding Policy |     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |
| Equity OwnershipGuidelines                     |     | •Implemented in 2011, AMG’s Equity Ownership Guidelines provide that an executive officer or director shouldown equity in the amount of:–10x annual base salary in the case of the President and Chief Executive Officer–7x annual base salary in the case of other named executive officers–5x base annual fees for service in the case of independent directors•Shares underlying outstanding stock options and unearned performance awards are not counted for purposes ofmeeting these guidelines•Executives and directors are strongly encouraged to meet these ownership guidelines within five years ofbecoming an executive officer, or three years of becoming a director•Includes a restriction on selling shares of AMG stock while the equity ownership of the director or executive doesnot exceed the required level through the accumulation period•All named executive officers and directors currently satisfy these Equity Ownership Guidelines to the extentapplicable                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
| Equity HoldingPolicy                           |     | •Equity Holding Policy first implemented in 2019 and applies to all named executive officers as well as othermembers of senior management granted one