| 2026-08-27 | 8-K | Form 8-K, Item 5.02 |
| 2026-08-12 | Press release | Rising Healthcare Costs Push Employers Toward Greater Benefits Oversight |
| 2026-08-05 | Press release | Arthur J. Gallagher & Co. Acquires Apollo Insurance Solutions Ltd |
| 2026-08-05 | 10-Q | Form 10-Q for the quarter ended Jun 30 |
| 2026-07-30 | Press release | Earnings Release · Q2 2026 |
| 2026-07-30 | 8-K | Form 8-K, Item 2.02 results |
| Transcript | Q2 FY26 earnings call transcript |
| 2026-07-29 | Press release | Arthur J. Gallagher & Co. Announces Regular Third Quarter Dividend · 2026 |
| 2026-07-29 | Press release | Arthur J. Gallagher & Co. Announces Passing of Director David Johnson |
| 2026-07-29 | 8-K | Form 8-K, Item 8.01 |
| 2026-07-21 | Press release | Arthur J. Gallagher & Co. Acquires W.N. Tuscano Agency, Inc |
| 2026-07-09 | Press release | Arthur J. Gallagher & Co. Acquires Med James, Inc |
| 2026-07-09 | Press release | Arthur J. Gallagher & Co. Announces Second Quarter 2026 Earnings Release And Conference Call Date |
| 2026-07-07 | Press release | Arthur J. Gallagher & Co. Acquires Wilson M. Beck Insurance Services Inc |
| 2026-06-23 | Press release | Arthur J. Gallagher & Co. Acquires Cincinnati Benefit Solutions, LLC |
| 2026-06-17 | 8-K | Form 8-K, Item 7.01 |
| 2026-06-10 | Press release | Gallagher Survey Finds Business Owners Are Taking More Integrated Approaches to Risk as Pressures Mount |
| 2026-06-03 | Press release | ARTHUR J. GALLAGHER & CO. TO HOST REGULARLY SCHEDULED QUARTERLY INVESTOR MEETING WITH MANAGEMENT |
| 2026-05-26 | Press release | Arthur J. Gallagher & Co. Acquires Twin Elms, LLC |
| 2026-05-20 | Deck | Investor presentation · May 2026 |
| 2026-05-20 | Press release | Arthur J. Gallagher & Co. Acquires McKee Risk Management, Inc |
| 2026-05-14 | Press release | Gallagher Introduces New AI Tool to Advance the Future of Employer Benefits Decision‑Making |
| 2026-05-13 | 8-K | Form 8-K, Item 5.07 |
| 2026-05-11 | Press release | Arthur J. Gallagher & Co. Acquires Mays Brown Solicitors |
| 2026-05-07 | 10-Q | Form 10-Q for the quarter ended Mar 31 |
| 2026-05-04 | Press release | Gallagher Launches Gallagher Blueprint, Pairing AI and Expert Insight to Produce Risk Profile Scores and Market-Ready Ac |
| 2026-04-30 | Press release | ARTHUR J. GALLAGHER & CO. ANNOUNCES FIRST QUARTER 2026 FINANCIAL RESULTS |
| 2026-04-30 | Press release | Arthur J. Gallagher & Co. Announces First Quarter 2026 Financial Results |
| 2026-04-30 | 8-K | Form 8-K, Item 2.02 results |
| 2026-04-29 | Press release | Arthur J. Gallagher & Co. Announces Regular Second Quarter Dividend · 2026 |
| 2026-04-16 | Press release | Arthur J. Gallagher & Co. Acquires Bridge Insurance Brokers Limited |
| 2026-04-09 | Press release | Arthur J. Gallagher & Co. Announces First Quarter 2026 Earnings Release And Conference Call Date |
| 2026-04-07 | Press release | UK employee demand for income protection triples between age 20 and 59 - but only 24% of employers offer it, finds Galla |
| 2026-04-07 | Press release | Gallagher Issues Statement on AssuredPartners of South Florida Settlement |
| 2026-03-30 | Press release | Arthur J. Gallagher & Co. Acquires International Insurance Brokers Pty Ltd |
| 2026-03-24 | Press release | Two-thirds of organizations invest in AI training as adoption accelerates - but governance gaps remain |
| 2026-03-23 | Proxy | Definitive proxy statement |
| Transcript | Earnings call transcript |
| 2026-03-17 | Press release | Arthur J. Gallagher & Co. Acquires Asset Partners Private Wealth Pty Ltd |
| 2026-03-17 | 8-K | Form 8-K, Item 7.01 |