Arthur J. Gallagher & Co.
Headquarters Rolling Meadows, IL
Financials
Prospectuses and Registrations
FORMNAMEDATE FILED
S-8Securities to be offered to employees in employee benefit plans2/18/2025424B2Prospectus12/11/2024FWPFiling under Securities Act Rules 163/433 of free writing prospectuses12/11/2024424B2Prospectus12/10/2024424B5Prospectus12/9/2024424B2Prospectus12/9/2024S-3ASRAutomatic shelf registration statement of securities of well-known seasoned issuers12/9/2024
Proxies
FORMNAMEDATE FILED
DEFA14AAdditional definitive proxy soliciting materials and Rule 14(a)(12) material4/3/2026DEFA14AAdditional definitive proxy soliciting materials and Rule 14(a)(12) material3/23/2026DEF 14AOther definitive proxy statements3/23/2026DEFA14AAdditional definitive proxy soliciting materials and Rule 14(a)(12) material3/24/2025DEF 14AOther definitive proxy statements3/24/2025N-PXAnnual Report of proxy voting record of management investment companies8/29/2024DEFA14AAdditional definitive proxy soliciting materials and Rule 14(a)(12) material3/22/2024
News
FORMNAMEDATE FILED
8-KRegulation FD Disclosure3/17/20268-KDeparture of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers3/12/20268-KResults of Operations and Financial Condition1/29/20268-KRegulation FD Disclosure12/16/20258-KResults of Operations and Financial Condition10/30/20258-K/AFinancial Statements and Exhibits10/28/20258-KRegulation FD Disclosure9/18/2025
Ownership
FORMNAMEDATE FILED
4Statement of changes in beneficial ownership of securities4/2/20264Statement of changes in beneficial ownership of securities4/2/20264Statement of changes in beneficial ownership of securities4/2/20264Statement of changes in beneficial ownership of securities4/2/20264Statement of changes in beneficial ownership of securities4/2/20264Statement of changes in beneficial ownership of securities4/1/20264Statement of changes in beneficial ownership of securities4/1/2026