Arthur J. Gallagher & Co. — All Filings
1,000 total filings on record
Public companies registered with the SEC are required to file periodic reports, disclosures, and notices throughout the year. The most important are the 10-K (annual report), 10-Q (quarterly report), and 8-K (material event notice). Use the filters below to narrow by form type.
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10-K
10-K/A
10-K405
10-Q
10-Q/A
13F-HR
13F-HR/A
13F-NT
13F-NT/A
144
144/A
3
4
4/A
424B2
424B3
424B5
424B7
5
5/A
8-A12B/A
8-K
8-K/A
ARS
CORRESP
DEF 14A
DEFA14A
EFFECT
FWP
IRANNOTICE
N-PX
POS AM
PRE 14A
S-1
S-3
S-3ASR
S-4
S-4/A
S-8
S-8 POS
SC 13G
SC 13G/A
SCHEDULE 13G
SCHEDULE 13G/A
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| SCHEDULE 13G/A | — | 0000102909-26-000660 | Mar 26, 2026 | — |
| 4 | PRIMARY DOCUMENT | 0000354190-26-000108 | Mar 24, 2026 | Mar 23, 2026 |
| 4 | PRIMARY DOCUMENT | 0000354190-26-000106 | Mar 24, 2026 | Mar 20, 2026 |
| ARS | ARS | 0000354190-26-000103 | Mar 23, 2026 | Dec 31, 2025 |
| DEFA14A | DEFA14A | 0000354190-26-000102 | Mar 23, 2026 | — |
| DEF 14A | DEF 14A | 0000354190-26-000101 | Mar 23, 2026 | May 12, 2026 |
| 4 | PRIMARY DOCUMENT | 0000354190-26-000097 | Mar 18, 2026 | Mar 15, 2026 |
| 4 | PRIMARY DOCUMENT | 0000354190-26-000095 | Mar 18, 2026 | Mar 16, 2026 |
| 144 | — | 0001784277-26-000003 | Mar 18, 2026 | — |
| 4 | PRIMARY DOCUMENT | 0000354190-26-000093 | Mar 17, 2026 | Mar 15, 2026 |
| 4 | PRIMARY DOCUMENT | 0000354190-26-000092 | Mar 17, 2026 | Mar 15, 2026 |
| 4 | PRIMARY DOCUMENT | 0000354190-26-000091 | Mar 17, 2026 | Mar 15, 2026 |
| 4 | PRIMARY DOCUMENT | 0000354190-26-000089 | Mar 17, 2026 | Mar 15, 2026 |
| 4 | PRIMARY DOCUMENT | 0000354190-26-000087 | Mar 17, 2026 | Mar 13, 2026 |
| 4 | PRIMARY DOCUMENT | 0000354190-26-000085 | Mar 17, 2026 | Mar 15, 2026 |
| 4 | PRIMARY DOCUMENT | 0000354190-26-000083 | Mar 17, 2026 | Mar 15, 2026 |
| 4 | PRIMARY DOCUMENT | 0000354190-26-000081 | Mar 17, 2026 | Mar 15, 2026 |
| 4 | PRIMARY DOCUMENT | 0000354190-26-000079 | Mar 17, 2026 | Mar 15, 2026 |
| 4 | PRIMARY DOCUMENT | 0000354190-26-000077 | Mar 17, 2026 | Mar 15, 2026 |
| 4 | PRIMARY DOCUMENT | 0000354190-26-000075 | Mar 17, 2026 | Mar 15, 2026 |
| 8-K | 8-K | 0000354190-26-000073 | Mar 17, 2026 | — |
| 8-K | 8-K | 0000354190-26-000069 | Mar 12, 2026 | Mar 6, 2026 |
| 4 | PRIMARY DOCUMENT | 0000354190-26-000066 | Mar 10, 2026 | Mar 9, 2026 |
| 4 | PRIMARY DOCUMENT | 0000354190-26-000064 | Mar 9, 2026 | Mar 5, 2026 |
| 4 | PRIMARY DOCUMENT | 0000354190-26-000062 | Mar 9, 2026 | Mar 5, 2026 |
| 4 | PRIMARY DOCUMENT | 0000354190-26-000060 | Mar 9, 2026 | Mar 6, 2026 |
| 4 | PRIMARY DOCUMENT | 0000354190-26-000058 | Mar 6, 2026 | Mar 4, 2026 |
| 4 | PRIMARY DOCUMENT | 0000354190-26-000056 | Mar 6, 2026 | Mar 4, 2026 |
| 4 | PRIMARY DOCUMENT | 0000354190-26-000054 | Mar 6, 2026 | Mar 4, 2026 |
| 4 | PRIMARY DOCUMENT | 0000354190-26-000052 | Mar 6, 2026 | Mar 4, 2026 |
| 4 | PRIMARY DOCUMENT | 0000354190-26-000050 | Mar 6, 2026 | Mar 4, 2026 |
| 4 | PRIMARY DOCUMENT | 0000354190-26-000048 | Mar 6, 2026 | Mar 4, 2026 |
| 4 | PRIMARY DOCUMENT | 0000354190-26-000046 | Mar 6, 2026 | Mar 4, 2026 |
| 4 | PRIMARY DOCUMENT | 0000354190-26-000044 | Mar 6, 2026 | Mar 4, 2026 |
| 4 | PRIMARY DOCUMENT | 0000354190-26-000042 | Mar 6, 2026 | Mar 4, 2026 |
| 4 | PRIMARY DOCUMENT | 0000354190-26-000040 | Mar 6, 2026 | Mar 4, 2026 |
| 4 | PRIMARY DOCUMENT | 0000354190-26-000038 | Mar 6, 2026 | Mar 4, 2026 |
| 144 | — | 0001959173-26-002015 | Mar 6, 2026 | — |
| 4 | PRIMARY DOCUMENT | 0000354190-26-000036 | Mar 5, 2026 | Mar 3, 2026 |
| 144 | — | 0001959173-26-001947 | Mar 5, 2026 | — |
| 4 | PRIMARY DOCUMENT | 0000354190-26-000034 | Mar 4, 2026 | Mar 2, 2026 |
| 4 | PRIMARY DOCUMENT | 0000354190-26-000032 | Mar 3, 2026 | Mar 1, 2026 |
| 4 | PRIMARY DOCUMENT | 0000354190-26-000030 | Mar 3, 2026 | Mar 1, 2026 |
| 4 | PRIMARY DOCUMENT | 0000354190-26-000028 | Mar 3, 2026 | Mar 1, 2026 |
| 4 | PRIMARY DOCUMENT | 0000354190-26-000026 | Mar 3, 2026 | Mar 1, 2026 |
| 4 | PRIMARY DOCUMENT | 0000354190-26-000024 | Mar 3, 2026 | Mar 1, 2026 |
| 4 | PRIMARY DOCUMENT | 0000354190-26-000022 | Mar 3, 2026 | Mar 1, 2026 |
| 4 | PRIMARY DOCUMENT | 0000354190-26-000020 | Mar 3, 2026 | Mar 1, 2026 |
| 4 | PRIMARY DOCUMENT | 0000354190-26-000018 | Mar 3, 2026 | Mar 1, 2026 |
| 4 | PRIMARY DOCUMENT | 0000354190-26-000016 | Mar 3, 2026 | Mar 1, 2026 |