MRSH SEC filings last scanned 22 Aug 2026, 16:43 UTC
CEO Timeline
John Q. DoyleCurrent
Jan 2023 — Present(3y 8mo)
John Q. Doyle was appointed President and Chief Executive Officer of Marsh & McLennan Companies, Inc., effective January 1, 2023, succeeding Daniel S. Glaser.
2 source filings — click to expand
Daniel S. Glaser
Jan 2013 — Dec 2022(9y 11mo)
Daniel S. Glaser was appointed President and Chief Executive Officer of Marsh & McLennan Companies, effective January 1, 2013, succeeding Brian Duperreault.
planned retirement at end of year
2 source filings — click to expand
Brian Duperreault
Jan 2008 — Dec 2012(4y 11mo)
Brian Duperreault was appointed President and Chief Executive Officer of Marsh & McLennan Companies, Inc., effective immediately on January 30, 2008.