---
schema_version: "secwatch.filing_event.v1"
accession: "0000062709-22-000072"
form_type: "8-K"
ticker: "MRSH"
cik: "0000062709"
company_name: "MARSH & MCLENNAN COMPANIES, INC."
filed_at: "2022-09-26T23:59:59+00:00"
generated_at: "2026-06-23T07:34:04.824862+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.8
calibrated_materiality_score: 0.8
confidence: "high"
source: SEC EDGAR
---

# Marsh McLennan CEO Dan Glaser to retire Dec 31; John Doyle named successor effective Jan 1, 2023

## Summary
- Daniel S. Glaser, 62, retires as President & CEO after leading since 2013; revenue grew from $12B to over $20B.
- John Q. Doyle, 58, current Group President & COO, becomes President & CEO effective January 1, 2023, and joins Board.
- Doyle previously led Marsh LLC (2017-2021), oversaw revenue growth and acquisitions; also served at AIG.
- Completed $5.6B acquisition of JLT in 2019; Marsh McLennan Agency grew to $2.5B annual revenue with 100 acquisitions.
- Compensation Committee amended Glaser's PSU awards to allow vesting upon meeting transition conditions.

## SEC filing metadata
- accession: 0000062709-22-000072
- form_type: 8-K
- ticker: MRSH
- cik: 0000062709
- company_name: MARSH & MCLENNAN COMPANIES, INC.
- filed_at: 2022-09-26T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.8
- calibrated_materiality_score: 0.8
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/62709/000006270922000072/0000062709-22-000072-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/62709/000006270922000072/a8-kofficerchanges92622.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000062709-22-000072
- JSON: https://secwatch.observer/filing/0000062709-22-000072.json
- Plain text: https://secwatch.observer/filing/0000062709-22-000072.txt

## Key facts
- Executive change
  Daniel S. Glaser departed as President and Chief Executive Officer at MARSH & MCLENNAN COMPANIES, INC..
  - Action: retire
  - Role: President and Chief Executive Officer
  source text: On September 23, 2022, Daniel S. Glaser, 62, informed the Board of Directors (the “Board”) of Marsh & McLennan Companies, Inc. (the “Company”) of his intention to retire as the Company’s President and Chief Executive Officer at the end of the year.
  evidence_url: https://www.sec.gov/Archives/edgar/data/62709/000006270922000072/0000062709-22-000072-index.htm
- Executive change
  John Q. Doyle was appointed as Director at MARSH & MCLENNAN COMPANIES, INC..
  - Action: appointed
  - Role: Director
  source text: In addition, Mr. Doyle will become a director of the Company effective January 1, 2023.
  evidence_url: https://www.sec.gov/Archives/edgar/data/62709/000006270922000072/0000062709-22-000072-index.htm
- Executive change
  John Q. Doyle was appointed as President and Chief Executive Officer at MARSH & MCLENNAN COMPANIES, INC..
  - Action: appointed
  - Role: President and Chief Executive Officer
  source text: In addition, on September 23, 2022, the Board named John Q. Doyle, 58, currently the Company’s Group President and Chief Operating Officer, as Mr. Glaser’s successor and he will become President and Chief Executive Officer, effective January 1, 2023.
  evidence_url: https://www.sec.gov/Archives/edgar/data/62709/000006270922000072/0000062709-22-000072-index.htm

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