HANOVER INSURANCE GROUP, INC. — 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
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10-Q/A
11-K
13F-HR
13F-HR/A
13F-NT
144
15-12B
25-NSE
3
3/A
305B2
4
4/A
424B2
5
5/A
8-A12B
8-A12B/A
8-K
8-K/A
ARS
CERTNYS
CORRESP
DEF 14A
DEF13E3/A
DEFA14A
FWP
IRANNOTICE
PRE 14A
PRE13E3
PRE13E3/A
S-3ASR
S-4
S-4/A
S-8
S-8 POS
SC 13D
SC 13D/A
SC 13E3
SC 13E3/A
SC 13G
SC 13G/A
SC 14D1
SC 14D1/A
SCHEDULE 13G/A
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| SCHEDULE 13G/A | — | 0000102909-26-001477 | Mar 27, 2026 | — |
| ARS | ARS | 0001193125-26-125014 | Mar 26, 2026 | Dec 31, 2025 |
| DEFA14A | DEFA14A | 0001193125-26-125013 | Mar 26, 2026 | — |
| DEF 14A | DEF 14A | 0001193125-26-125009 | Mar 26, 2026 | May 12, 2026 |
| 4 | 4 | 0001193125-26-086057 | Mar 2, 2026 | Feb 27, 2026 |
| 4 | 4 | 0001193125-26-086053 | Mar 2, 2026 | Feb 27, 2026 |
| 4 | 4 | 0001193125-26-086052 | Mar 2, 2026 | Feb 27, 2026 |
| 4 | 4 | 0001193125-26-086051 | Mar 2, 2026 | Feb 27, 2026 |
| 4 | 4 | 0001193125-26-086048 | Mar 2, 2026 | Feb 27, 2026 |
| 4 | 4 | 0001193125-26-086045 | Mar 2, 2026 | Feb 27, 2026 |
| 4 | 4 | 0001193125-26-086044 | Mar 2, 2026 | Feb 27, 2026 |
| 4 | 4 | 0001193125-26-086041 | Mar 2, 2026 | Feb 27, 2026 |
| 4 | 4 | 0001193125-26-086040 | Mar 2, 2026 | Feb 27, 2026 |
| 4 | 4 | 0001193125-26-077001 | Feb 26, 2026 | Feb 24, 2026 |
| 4 | 4 | 0001193125-26-076992 | Feb 26, 2026 | Feb 24, 2026 |
| 4 | 4 | 0001193125-26-077044 | Feb 26, 2026 | Feb 24, 2026 |
| 4 | 4 | 0001193125-26-077038 | Feb 26, 2026 | Feb 24, 2026 |
| 4 | 4 | 0001193125-26-077008 | Feb 26, 2026 | Feb 24, 2026 |
| 4 | 4 | 0001193125-26-076977 | Feb 26, 2026 | Feb 24, 2026 |
| 4 | 4 | 0001193125-26-076975 | Feb 26, 2026 | Feb 24, 2026 |
| 4 | 4 | 0001193125-26-076971 | Feb 26, 2026 | Feb 24, 2026 |
| 10-K | 10-K | 0001193125-26-060983 | Feb 20, 2026 | Dec 31, 2025 |
| 13F-NT | — | 0000944695-26-000002 | Feb 12, 2026 | Dec 31, 2025 |
| 4 | 4 | 0001193125-26-041205 | Feb 6, 2026 | Feb 5, 2026 |
| 144 | — | 0001959173-26-000674 | Feb 5, 2026 | — |
| 8-K | 8-K | 0001193125-26-036103 | Feb 4, 2026 | Feb 3, 2026 |
| 4 | 4 | 0001193125-26-024491 | Jan 27, 2026 | Jan 23, 2026 |
| 4 | 4 | 0001193125-25-335365 | Dec 29, 2025 | Dec 26, 2025 |
| 4 | 4 | 0001193125-25-335364 | Dec 29, 2025 | Dec 26, 2025 |
| 4 | 4 | 0001193125-25-335345 | Dec 29, 2025 | Dec 26, 2025 |
| 4 | 4 | 0001193125-25-335343 | Dec 29, 2025 | Dec 26, 2025 |
| 4 | 4 | 0001193125-25-335342 | Dec 29, 2025 | Dec 26, 2025 |
| 4 | 4 | 0001193125-25-335337 | Dec 29, 2025 | Dec 26, 2025 |
| 4 | 4 | 0001193125-25-335331 | Dec 29, 2025 | Dec 26, 2025 |
| 4 | 4 | 0001193125-25-335328 | Dec 29, 2025 | Dec 26, 2025 |
| 8-K | 8-K | 0001193125-25-320900 | Dec 16, 2025 | — |
| 4 | 4 | 0001193125-25-306699 | Dec 3, 2025 | Dec 1, 2025 |
| 4 | 4 | 0001193125-25-306696 | Dec 3, 2025 | Dec 1, 2025 |
| 4 | 4 | 0001193125-25-306691 | Dec 3, 2025 | Dec 1, 2025 |
| 4 | 4 | 0001193125-25-306684 | Dec 3, 2025 | Dec 1, 2025 |
| 4 | 4 | 0001193125-25-280394 | Nov 13, 2025 | Nov 12, 2025 |
| 144 | — | 0001959173-25-006934 | Nov 12, 2025 | — |
| 13F-NT | — | 0000944695-25-000012 | Nov 10, 2025 | Sep 30, 2025 |
| 4 | 4 | 0001193125-25-269714 | Nov 6, 2025 | Nov 5, 2025 |
| 4 | 4 | 0001193125-25-266999 | Nov 5, 2025 | Nov 4, 2025 |
| 10-Q | 10-Q | 0001193125-25-258501 | Oct 30, 2025 | Sep 30, 2025 |
| 8-K | 8-K | 0001193125-25-256618 | Oct 29, 2025 | — |
| 25-NSE | — | 0000876661-25-000773 | Oct 15, 2025 | — |
| 4 | 4 | 0001193125-25-225073 | Sep 30, 2025 | Sep 26, 2025 |
| 4 | 4 | 0001193125-25-225072 | Sep 30, 2025 | Sep 26, 2025 |