Based on data from the past 90 days ending January 14, 2026, Arthur J. Gallagher's three largest insider shareholders are President Thomas Joseph Gallagher (404.76K shares), Vice President Joel D Cavaness (161.60K shares), Ceo J Patrick Jr Gallagher (146.56K shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Thomas Joseph Gallagher | President | 404,755 | 22 Aug, 2025 |
| Joel D Cavaness | Vice President | 161,604 | 01 May, 2024 |
| J Patrick Jr Gallagher | Ceo | 146,558 | 11 Jun, 2025 |
| Douglas K Howell | Vp & Chief Financial Officer | 95,948 | 29 Dec, 2025 |
| Scott R Hudson | Vice President | 86,208 | 09 Sep, 2025 |
| Patrick Murphy Gallagher | Chief Operating Officer | 84,542 | 11 Jun, 2025 |
| Walter D. Bay | General Counsel | 78,118 | 23 Dec, 2025 |
| Vishal Jain | Vice President | 58,633 | 05 Jan, 2026 |
| Richard C Cary | Controller And Cao | 50,882 | 20 Nov, 2025 |
| William L Bax | 47,904 | 09 May, 2024 | |
| David S Johnson | 45,823 | 03 Dec, 2025 | |
| William F Ziebell | Vice President | 44,486 | 02 Apr, 2025 |
| Michael Robert Pesch | Vice President | 41,908 | 03 Nov, 2025 |
| Norman L Rosenthal | 41,876 | 15 May, 2025 | |
| Kay W Mccurdy | 30,621 | 11 May, 2023 | |
| Sherry S Barrat | 18,073 | 15 May, 2025 | |
| Christopher E Mead | Vice President | 17,231 | 29 Dec, 2025 |
| Ralph J Nicoletti | 17,164 | 15 May, 2025 | |
| David John Coldman | 15,234 | 15 May, 2025 | |
| Susan E Pietrucha | Chief Human Resources Officer | 12,112 | 20 May, 2025 |
| Christopher C. Miskel | 9,111 | 03 Dec, 2025 | |
| Teresa Hillary Clarke | 4,442 | 15 May, 2025 | |
| Deborah H Caplan | 1,540 | 15 May, 2025 | |
| Richard De Winton Wilkin Harries | 1,303 | 25 Jul, 2025 |
* 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 |
|---|---|---|---|---|---|---|---|---|
| 01 Jan, 2026 | Vishal Jain | Common Stock | D | 259 | $258.79 | 58,419 | D | F |
| 01 Jan, 2026 | Vishal Jain | Common Stock | A | 955 | $0.00 | 58,678 | D | M |
| 23 Dec, 2025 | Christopher E Mead | Common Stock | D | 388 | $0.00 | 16,939 | D | G |
| 23 Dec, 2025 | Christopher E Mead | - | - | 17,327 | D | |||
| 23 Dec, 2025 | Christopher E Mead | Common Stock | D | 4,000 | $258.11 | 17,327 | D | S |
| 23 Dec, 2025 | Christopher E Mead | - | - | 16,939 | D | |||
| 23 Dec, 2025 | Christopher E Mead | Common Stock | A | 4,000 | $79.59 | 21,327 | D | M |
| 22 Dec, 2025 | Douglas K Howell | Common Stock | D | 196 | $0.00 | 95,581 | D | G |
| 22 Dec, 2025 | Douglas K Howell | - | - | 95,777 | D | |||
| 22 Dec, 2025 | Douglas K Howell | Common Stock | D | 5,000 | $258.05 | 95,777 | D | S |
| 22 Dec, 2025 | Douglas K Howell | - | - | 95,581 | D | |||
| 19 Dec, 2025 | Walter D. Bay | Common Stock | D | 1,724 | $0.00 | 77,825 | D | G |
| 19 Dec, 2025 | Walter D. Bay | - | - | 79,549 | D | |||
| 19 Dec, 2025 | Walter D. Bay | Common Stock | A | 15,850 | $79.59 | 95,399 | D | M |
| 19 Dec, 2025 | Walter D. Bay | - | - | 77,825 | D | |||
| 19 Dec, 2025 | Walter D. Bay | - | - | 95,399 | D | |||
| 19 Dec, 2025 | Walter D. Bay | Common Stock | D | 15,850 | $255.00 | 79,549 | D | S |
| 01 Dec, 2025 | David S Johnson | - | - | 45,823 | D | |||
| 01 Dec, 2025 | David S Johnson | Common Stock | A | 198 | $246.10 | 45,823 | D | A |
| 01 Dec, 2025 | Christopher C. Miskel | Common Stock | A | 163 | $246.10 | 9,111 | D | A |