---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-25-019350"
form_type: "8-K"
ticker: "AMG"
cik: "0001004434"
company_name: "AFFILIATED MANAGERS GROUP, INC."
filed_at: "2025-02-03T23:59:59+00:00"
generated_at: "2026-05-27T03:50:53.205867+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.25
calibrated_materiality_score: 0.25
confidence: "high"
source: SEC EDGAR
---

# Director Reuben Jeffery III retires from AMG Board; Dwight Churchill named Chair

## Summary
- Reuben Jeffery III retired from AMG Board effective January 30, 2025.
- Dwight D. Churchill appointed as Chair of the Board.
- No replacement director announced.

## SEC filing metadata
- accession: 0001193125-25-019350
- form_type: 8-K
- ticker: AMG
- cik: 0001004434
- company_name: AFFILIATED MANAGERS GROUP, INC.
- filed_at: 2025-02-03T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.25
- calibrated_materiality_score: 0.25
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1004434/000119312525019350/0001193125-25-019350-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1004434/000119312525019350/d844057d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-25-019350
- JSON: https://secwatch.observer/filing/0001193125-25-019350.json
- Plain text: https://secwatch.observer/filing/0001193125-25-019350.txt

## Key facts
- Executive change
  Dwight D. Churchill was named as Chair of the Board at AFFILIATED MANAGERS GROUP, INC..
  - Action: named
  - Role: Chair of the Board
  source text: “On behalf of our Board and AMG’s management team, we thank Reuben for his distinguished service and strategic insights,” stated Dwight D. Churchill, who has been named Chair of the Board.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1004434/000119312525019350/0001193125-25-019350-index.htm
- Executive change
  Reuben Jeffery III retired as Director at AFFILIATED MANAGERS GROUP, INC..
  - Action: retired
  - Role: Director
  source text: On January 30, 2025, Reuben Jeffery III notified Affiliated Managers Group, Inc. (“AMG”) of his decision to retire from the Board of Directors (the “Board”), effective immediately.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1004434/000119312525019350/0001193125-25-019350-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.