| 2026-08-27 | 8-K | 8-K filed 2026-08-27 by Arthur J. Gallagher & Co. |
| 2026-08-05 | 10-Q | 10-Q filed 2026-08-05 by Arthur J. Gallagher & Co. |
| 2026-07-30 | 8-K | 8-K filed 2026-07-30 by Arthur J. Gallagher & Co. |
| 2026-07-29 | 8-K | 8-K filed 2026-07-29 by Arthur J. Gallagher & Co. |
| 2026-06-17 | 8-K | 8-K filed 2026-06-17 by Arthur J. Gallagher & Co. |
| 2026-05-13 | 8-K | 8-K filed 2026-05-13 by Arthur J. Gallagher & Co. |
| 2026-05-07 | 10-Q | 10-Q filed 2026-05-07 by Arthur J. Gallagher & Co. |
| 2026-04-30 | 8-K | 8-K filed 2026-04-30 by Arthur J. Gallagher & Co. |
| 2026-03-23 | DEF 14A | DEF 14A filed 2026-03-23 by Arthur J. Gallagher & Co. |
| 2026-03-17 | 8-K | 8-K filed 2026-03-17 by Arthur J. Gallagher & Co. |
| 2026-03-12 | 8-K | 8-K filed 2026-03-12 by Arthur J. Gallagher & Co. |
| 2026-02-17 | 10-K | 10-K filed 2026-02-17 by Arthur J. Gallagher & Co. |
| 2026-01-29 | 8-K | 8-K filed 2026-01-29 by Arthur J. Gallagher & Co. |
| 2025-12-16 | 8-K | 8-K filed 2025-12-16 by Arthur J. Gallagher & Co. |
| 2025-11-10 | 10-Q | 10-Q filed 2025-11-10 by Arthur J. Gallagher & Co. |
| 2025-10-30 | 8-K | 8-K filed 2025-10-30 by Arthur J. Gallagher & Co. |
| 2025-10-28 | 8-K/A | 8-K/A filed 2025-10-28 by Arthur J. Gallagher & Co. |
| 2025-09-18 | 8-K | 8-K filed 2025-09-18 by Arthur J. Gallagher & Co. |
| 2025-08-18 | 8-K | 8-K filed 2025-08-18 by Arthur J. Gallagher & Co. |
| 2025-08-01 | 10-Q | 10-Q filed 2025-08-01 by Arthur J. Gallagher & Co. |
| 2025-07-31 | 8-K | 8-K filed 2025-07-31 by Arthur J. Gallagher & Co. |
| 2025-06-04 | 8-K | 8-K filed 2025-06-04 by Arthur J. Gallagher & Co. |
| 2025-05-14 | 8-K | 8-K filed 2025-05-14 by Arthur J. Gallagher & Co. |
| 2025-05-02 | 10-Q | 10-Q filed 2025-05-02 by Arthur J. Gallagher & Co. |
| 2025-05-01 | 8-K | 8-K filed 2025-05-01 by Arthur J. Gallagher & Co. |
| 2025-04-04 | 8-K | 8-K filed 2025-04-04 by Arthur J. Gallagher & Co. |
| 2025-03-24 | DEF 14A | DEF 14A filed 2025-03-24 by Arthur J. Gallagher & Co. |
| 2025-03-20 | 8-K | 8-K filed 2025-03-20 by Arthur J. Gallagher & Co. |
| 2025-02-18 | 10-K | 10-K filed 2025-02-18 by Arthur J. Gallagher & Co. |
| 2025-01-30 | 8-K | 8-K filed 2025-01-30 by Arthur J. Gallagher & Co. |