# Affiliated Managers Group, Inc.: Form 8-K, filed Dec 8, 2025

- Company: [Affiliated Managers Group, Inc.](/companies/amg.md) (CIK 1004434)
- Form: 8-K
- Filed: 2025-12-08
- Accepted by EDGAR: Dec 8, 2025, 17:04 ET
- Period: 2025-12-08
- Accession: 0001193125-25-311380
- Inline XBRL: yes
- Main document: https://www.sec.gov/Archives/edgar/data/1004434/000119312525311380/d93774d8k.htm
- All documents and exhibits: https://www.sec.gov/Archives/edgar/data/1004434/000119312525311380/

## Items reported

- Item 8.01: Other events

## Sections

Sections are extracted only from 10-K and 10-Q reports. Read this filing’s documents on sec.gov. https://www.sec.gov/Archives/edgar/data/1004434/000119312525311380/d93774d8k.htm

Filed Dec 8, 2025.
Source: SEC EDGAR, the filing index for accession 0001193125-25-311380. Last ingested by Listed: Nov 10, 2026, 02:37 ET. No prices; not investment advice.