Affiliated Managers Group, Inc. 8-K Filing

Ticker: MGRE · Form: 8-K · Filed: Dec 11, 2025 · CIK: 1004434

Affiliated Managers Group, Inc. 8-K Filing Summary
FieldDetail
CompanyAffiliated Managers Group, Inc. (MGRE)
Form Type8-K
Filed DateDec 11, 2025
Pages4
Reading Time4 min
Key Dollar Amounts$0.01, $425,000,000
Sentimentneutral

Sentiment: neutral

FAQ

What type of filing is this?

This is a 8-K filing submitted by Affiliated Managers Group, Inc. (ticker: MGRE) to the SEC on Dec 11, 2025.

What are the key financial figures in this filing?

Key dollar amounts include: $0.01 (nge on which registered Common Stock ($0.01 par value) AMG New York Stock Excha); $425,000,000 (ny") completed the issuance and sale of $425,000,000 aggregate principal amount of the Compa).

How long is this filing?

Affiliated Managers Group, Inc.'s 8-K filing is 4 pages with approximately 1,102 words. Estimated reading time is 4 minutes.

Where can I view the full 8-K filing?

The complete filing is available on SEC EDGAR. You can also read the AI-decoded analysis with risk assessment and key highlights on ReadTheFiling.

Filing Stats: 1,102 words · 4 min read · ~4 pages · Grade level 9.8 · Accepted 2025-12-11 16:30:56

Key Financial Figures

  • $0.01 — nge on which registered Common Stock ($0.01 par value) AMG New York Stock Excha
  • $425,000,000 — ny") completed the issuance and sale of $425,000,000 aggregate principal amount of the Compa

Filing Documents

Financial Statements and Exhibits

Financial Statements and Exhibits. (d) Exhibits. Exhibit No. Description 1.1 Underwriting Agreement, dated as of December 8, 2025, among Affiliated Managers Group, Inc. and BofA Securities, Inc., Citigroup Global Markets Inc. and Wells Fargo Securities, LLC, as representatives of the underwriters named therein. 4.1 Indenture for Senior Notes, dated as of June 5, 2020, between Affiliated Managers Group, Inc., as issuer, and U.S. Bank National Association, as trustee (incorporated by reference to Exhibit 4.1 to Affiliated Managers Group, Inc.'s Current Report on Form 8-K filed on June 5, 2020). 4.2 Third Supplemental Indenture, dated as of December 11, 2025, between Affiliated Managers Group, Inc., as issuer, and U.S. Bank Trust Company, National Association, as trustee. 4.3 Form of 5.500% Senior Note due 2036 (included in Exhibit 4.2). 5.1 Opinion of Skadden, Arps, Slate, Meagher & Flom LLP. 23.1 Consent of Skadden, Arps, Slate, Meagher & Flom LLP (included in Exhibit 5.1). 104 Cover Page Interactive Data File (embedded within the Inline XBRL document).

SIGNATURES

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. Date: December 11, 2025 By: /s/ Kavita Padiyar Name: Kavita Padiyar Title: General Counsel and Corporate Secretary

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