Schedule 13G ownership disclosure
AFFILIATED MANAGERS GROUP INC
Common Stock · CUSIP: 008252108
Event date: 2025-09-30
- Filing-level shares
- 2,771,811
- Percent of class
- 9.75%
- The Vanguard Group
Shares: 2,771,811 · Class: 9.75%
Amounts are as disclosed in this filing. Schedule type alone does not establish investment intent.
Source: SEC EDGAR filingFiling metadata
- Accession number
- 0000102909-25-000065
- Form type
- SCHEDULE 13G/A
- Filer
- AFFILIATED MANAGERS GROUP, INC.
- CIK
- CIK 1004434
- Filed
- Oct 30, 2025
- Reporting period
- Sep 30, 2025
- Description
- Schedule 13G beneficial ownership