Welcome to our dedicated page for Affiliated Managers Group SEC filings (Ticker: AMG), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
The Affiliated Managers Group, Inc. (AMG) SEC filings page on Stock Titan provides access to the company’s regulatory disclosures as filed with the U.S. Securities and Exchange Commission. AMG’s common stock trades on the New York Stock Exchange under the symbol AMG, and the company also has several series of junior subordinated notes listed on the NYSE, as reflected in its Form 8-K cover pages.
Investors can use this page to review current and historical filings such as Form 8-K reports, annual reports on Form 10-K, and quarterly reports on Form 10-Q when available. Recent 8-K filings illustrate how AMG reports material events, including quarterly financial and operating results, dividend declarations, and changes in its capital structure. For example, an 8-K dated December 11, 2025 describes the issuance and sale of $425,000,000 of 5.500% Senior Notes due 2036, outlining the terms of the notes, the governing indenture, and the intended use of proceeds. Another 8-K dated December 8, 2025 details a notice of redemption for AMG’s 5.15% Convertible Trust Preferred Securities due 2037 and explains that the contemplated refinancing is intended to simplify the company’s capital structure while maintaining a long-duration debt profile.
Other 8-K filings furnished by AMG cover results of operations and financial condition, including earnings press releases for specific quarters. These filings identify which portions of the earnings materials are deemed “filed” for purposes of the Exchange Act and incorporated by reference into Securities Act filings. They also disclose Board-authorized quarterly cash dividends on AMG’s common stock.
On Stock Titan, these filings are supplemented with AI-powered summaries that highlight key points from lengthy documents, helping users quickly understand topics such as new debt issuances, redemption notices, earnings metrics, and dividend actions. Real-time updates from EDGAR ensure that new AMG filings, including 10-Ks, 10-Qs, and Form 4 insider transaction reports when available, are added promptly, while AI-generated overviews make it easier to interpret the implications of complex regulatory text.
Affiliated Managers Group (AMG) disclosed an insider equity award under Form 4. A director received 199 restricted stock units on November 3, 2025. Each unit represents one share of common stock upon vesting, which occurs in full on March 5, 2027. The award is shown with a $0 exercise price and is held directly by the reporting person.
Affiliated Managers Group, Inc. filed a Form 8-K stating it issued a press release with financial and operating results for the quarter ended September 30, 2025. The company’s Board of Directors also authorized and declared a quarterly dividend of $0.01 per share of common stock, payable November 28, 2025 to stockholders of record as of the close of business on November 13, 2025.
The filing notes that the financial highlights table on page 1 and the financial tables on pages 3 through 9 of Exhibit 99.1 are filed for purposes of Section 18 of the Exchange Act and incorporated by reference into Securities Act filings; the remaining portions of the press release are furnished.
Affiliated Managers Group, Inc. (AMG) received an Amendment No. 1 to Schedule 13G reporting passive beneficial ownership by several Millennium-related filers and Integrated Core Strategies (US) LLC. As of 09/30/2025, Millennium Management LLC, Millennium Group Management LLC, and Israel A. Englander each reported 1,017,113 shares, representing 3.6% of AMG’s common stock, with shared voting and dispositive power. Integrated Core Strategies (US) LLC reported 974,596 shares, or 3.4%, also with shared voting and dispositive power.
The filers certified the holdings were not acquired and are not held for the purpose of changing or influencing control.
The Vanguard Group filed an amended Schedule 13G reporting passive ownership in Affiliated Managers Group (AMG). Vanguard beneficially owns 2,771,811 shares of AMG common stock, representing 9.75% of the class as of 09/30/2025.
The filing lists 0 shares with sole voting power and 174,684 with shared voting power. Vanguard reports 2,560,709 shares with sole dispositive power and 211,102 with shared dispositive power. Vanguard states the securities were acquired and are held in the ordinary course of business and not for the purpose of changing or influencing control. Clients of The Vanguard Group have rights to dividends or sale proceeds related to the reported securities, and no single client interest exceeds 5%.
The Form 4 shows transactions by Thomas M. Wojcik, President and COO of Affiliated Managers Group (AMG). On 09/08/2025 he exercised 169,303 employee stock options114,008 shares sold at an average $231.19. On 09/09/2025 he sold an additional 16,000 shares at $231.03, leaving total beneficial ownership at 158,710 shares after the reported transactions. The filing notes the sale price range was $229.95–$233.05.
Form 144 filed for Affiliated Managers Group (AMG) proposes the sale of 16,000 common shares through Morgan Stanley Smith Barney on the NYSE with an approximate sale date of 09/09/2025. The filing reports an aggregate market value of $3,696,454.40 and notes 28,412,063 shares outstanding. The shares were acquired on 09/09/2025 through an exercise of options under a registered plan and payment was made in cash. The filer indicates there were no securities sold by the person in the past 3 months and signs the required representation that they are not aware of undisclosed material adverse information about the issuer.
Jay C. Horgen, CEO and Director of Affiliated Managers Group (AMG), reported transactions on 09/02/2025. He acquired 75,000 common shares via exercise of options at $74.49 and purchased those shares for $0 upon exercise, increasing his direct holdings to 559,322 shares. He also sold 44,935 shares at $229.97, leaving 514,387 shares directly owned. An additional 34,058 shares are held indirectly by family trusts.
Kavita Padiyar, General Counsel and Corporate Secretary of Affiliated Managers Group, Inc. (AMG), reported insider transactions dated 09/02/2025. The filing shows an acquisition of 47,731 shares (code M) at a price tied to $73.81 and a disposition of 30,991 shares (code F) at $229.97. After these transactions the report lists beneficial ownership totals of 73,431 shares and 42,440 shares in two reported non-derivative lines; a related employee stock option involving 47,731 underlying shares is also disclosed.
Churchill Dwight D., a director of Affiliated Managers Group (AMG), received 1,398 shares through vesting of previously reported awards on 08/15/2025. The transaction is recorded as an acquisition at $0 per share because the shares reflect award vesting rather than an open-market purchase. After the vesting, the reporting person beneficially owns 29,030 shares of common stock directly and holds 2,775 stock units tied to derivative awards. The filing notes these awards vest over the period 2022–2025.
Affiliated Managers Group director Ryan David Christopher reported transactions on Form 4 showing the vesting and receipt of company equity. On 08/15/2025, 1,092 shares of common stock were acquired (transaction code M) at $0, and following the transaction he beneficially owned 3,627 shares. Separately, on 08/14/2025 he acquired 307 deferred stock units (notionally tied to AMG common stock) at $0, which become distributable in common stock upon separation from board service. The filing notes these shares reflect vesting of previously reported awards and prior deferred units.
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