As of March 23, 2026, the three largest insider holders of MRSH are Peter J Beshar (Evp And General Counsel, 505.31K shares), John Q Doyle (President And Ceo, 133.47K shares), Daniel S Glaser (President And Ceo, Mmc, 101.07K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Daniel S Glaser | President And Ceo, Mmc | 101,074 | 0 | 08 Mar, 2022 |
| Marc D Oken | 53,823 | 0 | 07 Dec, 2021 | |
| Steven A Mills | 0 | 47,553 | 13 Sep, 2023 | |
| Bruce P Nolop | 43,533 | 0 | 02 Jun, 2023 | |
| Mark C Mcgivney | Chief Financial Officer | 42,469 | 0 | 03 Mar, 2026 |
| Nicholas Mark Studer | President And Ceo Of Owg | 32,536 | 0 | 04 Mar, 2026 |
| Martin South | President Ceo, Marsh Risk | 23,651 | 0 | 03 Mar, 2026 |
| Scott Mcdonald | President And Ceo Of Owg | 18,763 | 0 | 04 Jun, 2021 |
| John Jude Jones | Chief Marketing Officer | 7,978 | 0 | 12 Mar, 2026 |
| Patrick Tomlinson | President And Ceo, Mercer | 4,256 | 0 | 17 Mar, 2026 |
| Stacy Mills | Vice President And Controller | 4,151 | 0 | 03 Mar, 2026 |
| Steven A Mills | 4,145 | 0 | 18 Feb, 2026 | |
| Ray G Young | 1,248 | 0 | 02 Jun, 2023 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 15 Mar, 2026 | Patrick Tomlinson | Common Stock | A | 1,228 | $0.00 | 4,883 | D | M |
| 15 Mar, 2026 | Patrick Tomlinson | Common Stock | D | 627 | $172.15 | 4,256 | D | F |
| 15 Mar, 2026 | Patrick Tomlinson | Restricted Stock Units | D | 1,228 | $0.00 | 4,854 | D | M |
| 11 Mar, 2026 | John Jude Jones | Common Stock | D | 2,362 | $173.61 | 7,978 | D | S |
| 03 Mar, 2026 | Nicholas Mark Studer | Common Stock | D | 3,837 | $184.03 | 32,536 | D | S |
| 28 Feb, 2026 | John Jude Jones | Common Stock | A | 4,826 | $0.00 | 12,804 | D | M |
| 28 Feb, 2026 | Patrick Tomlinson | Common Stock | A | 2,219 | $0.00 | 4,794 | D | M |
| 28 Feb, 2026 | Stacy Mills | Common Stock | A | 2,723 | $0.00 | 5,428 | D | M |
| 28 Feb, 2026 | Nicholas Mark Studer | Common Stock | A | 8,044 | $0.00 | 36,373 | D | M |
| 28 Feb, 2026 | Martin South | Common Stock | A | 14,476 | $0.00 | 31,657 | D | M |
| 28 Feb, 2026 | Mark C Mcgivney | Common Stock | A | 17,961 | $0.00 | 51,639 | D | M |
| 28 Feb, 2026 | Martin South | Common Stock | D | 8,006 | $186.74 | 23,651 | D | F |
| 28 Feb, 2026 | Patrick Tomlinson | Common Stock | D | 1,139 | $186.74 | 3,655 | D | F |
| 28 Feb, 2026 | Nicholas Mark Studer | Restricted Stock Units | D | 8,044 | $0.00 | 0 | D | M |
| 28 Feb, 2026 | Mark C Mcgivney | Common Stock | D | 9,170 | $186.74 | 42,469 | D | F |
| 28 Feb, 2026 | John Jude Jones | Common Stock | D | 2,464 | $186.74 | 10,340 | D | F |
| 28 Feb, 2026 | Stacy Mills | Common Stock | D | 1,277 | $186.74 | 4,151 | D | F |
| 28 Feb, 2026 | Stacy Mills | Restricted Stock Units | D | 2,723 | $0.00 | 2,916 | D | M |
| 28 Feb, 2026 | Martin South | Restricted Stock Units | D | 14,476 | $0.00 | 0 | D | M |
| 28 Feb, 2026 | Mark C Mcgivney | Restricted Stock Units | D | 17,961 | $0.00 | 0 | D | M |