16 insiders reported 37 Form 4 transactions for MARSH & MCLENNAN COMPANIES, INC. (MRSH) over the past 18 months (most recent 2026-06-03). Recent activity: MILLS STEVEN A (Director) Buy 1,349 shares, BROUSSARD BRUCE D (Director) Buy 1,349 shares, HANWAY H EDWARD (Director) Buy 1,349 shares, Doyle John Q (President and CEO) Buy 16,656 shares, Hartmann Judith (Director) Buy 1,349 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-06-03 | MILLS STEVEN A | Director | Buy | 1,349 | $214,869 |
| 2026-06-03 | BROUSSARD BRUCE D | Director | Buy | 1,349 | $214,869 |
| 2026-06-03 | HANWAY H EDWARD | Director | Buy | 1,349 | $214,869 |
| 2026-06-03 | Doyle John Q | President and CEO | Buy | 16,656 | $1.2M |
| 2026-06-03 | Hartmann Judith | Director | Buy | 1,349 | $214,869 |
| 2026-06-03 | Harrison Peter | Director | Buy | 1,350 | $214,999 |
| 2026-06-03 | Doyle John Q | President and CEO | Sell | 16,656 | $2.7M |
| 2026-06-03 | Harrison Peter | Director | Sell | 103 | $16,468 |
| 2026-05-18 | MILLS STEVEN A | Director | Buy | 264 | $42,398 |
| 2026-03-17 | Tomlinson Patrick | President and CEO, Mercer | Buy | 1,228 | $0 |
| 2026-03-17 | Tomlinson Patrick | President and CEO, Mercer | Sell | 627 | $107,938 |
| 2026-03-12 | Jones John Jude | Chief Marketing Officer | Sell | 2,362 | $410,067 |
| 2026-03-05 | Doyle John Q | President and CEO | Sell | 16,655 | $3.1M |
| 2026-03-05 | Doyle John Q | President and CEO | Buy | 16,655 | $0 |
| 2026-03-04 | Studer Nicholas Mark | President and CEO of OWG | Sell | 3,837 | $706,123 |
| 2026-03-03 | South Martin | President & CEO, Marsh Risk | Buy | 14,476 | $0 |
| 2026-03-03 | South Martin | President & CEO, Marsh Risk | Sell | 8,006 | $1.5M |
| 2026-03-03 | Studer Nicholas Mark | President and CEO of OWG | Buy | 8,044 | $0 |
| 2026-03-03 | Klisura Dean Michael | President & CEO, Guy Carpenter | Buy | 9,383 | $0 |
| 2026-03-03 | Klisura Dean Michael | President & CEO, Guy Carpenter | Sell | 5,189 | $968,994 |
| 2026-03-03 | Brennan Katherine | SVP and General Counsel | Buy | 6,970 | $0 |
| 2026-03-03 | Brennan Katherine | SVP and General Counsel | Sell | 3,855 | $719,883 |
| 2026-03-03 | Fernandez Carmen | SVP, Chief People Officer | Buy | 6,970 | $0 |
| 2026-03-03 | Fernandez Carmen | SVP, Chief People Officer | Sell | 3,855 | $719,883 |
| 2026-03-03 | Doyle John Q | President and CEO | Buy | 59,510 | $0 |
Source: SEC Form 4 filings · as of 2026-06-03