---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-25-137112"
form_type: "8-K"
ticker: "AMG"
cik: "0001004434"
company_name: "AFFILIATED MANAGERS GROUP, INC."
filed_at: "2025-06-06T23:59:59+00:00"
generated_at: "2026-05-19T17:56:54.140074+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# AMG appoints Thomas M. Wojcik as President, retains COO role; RSU award of $5M

## Summary
- Thomas M. Wojcik appointed President effective June 3, 2025; continues as COO.
- CEO Jay C. Horgen remains CEO; previously held both President and CEO roles.
- Compensation Committee approved $5M RSU award (performance-based, vesting March 2030).
- Wojcik joined AMG in 2019 as CFO, named COO in 2024; previously at BlackRock.

## SEC filing metadata
- accession: 0001193125-25-137112
- form_type: 8-K
- ticker: AMG
- cik: 0001004434
- company_name: AFFILIATED MANAGERS GROUP, INC.
- filed_at: 2025-06-06T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 5.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1004434/000119312525137112/0001193125-25-137112-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1004434/000119312525137112/d85066d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-25-137112
- JSON: https://secwatch.observer/filing/0001193125-25-137112.json
- Plain text: https://secwatch.observer/filing/0001193125-25-137112.txt

## Key facts
- Executive change
  Jay C. Horgen changed role as Chief Executive Officer at AFFILIATED MANAGERS GROUP, INC..
  - Role: Chief Executive Officer
  source text: Jay C. Horgen, previously President and Chief Executive Officer, will continue as Chief Executive Officer of the Company.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1004434/000119312525137112/0001193125-25-137112-index.htm
- Executive change
  Thomas M. Wojcik was appointed as President and Chief Operating Officer at AFFILIATED MANAGERS GROUP, INC..
  - Action: appointed
  - Role: President and Chief Operating Officer
  source text: On June 3, 2025, Thomas M. Wojcik was appointed President of Affiliated Managers Group, Inc. (the “Company”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/1004434/000119312525137112/0001193125-25-137112-index.htm

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