Hanover Insurance Group, Inc. SEC filings THG
Hanover Insurance Group, Inc. has 1,000 filings in SEC EDGAR's recent list, going back to Aug 28, 2017. Its latest annual report, Form ARS, was filed on Mar 26, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Oct 29, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Oct 28, 2026 (results of operations). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 4 | Insider transaction | Nov 5, 2026 | Nov 4, 2026 |
| 4 | Insider transaction | Nov 5, 2026 | Nov 4, 2026 |
| 144 | Notice of proposed sale | Nov 4, 2026 | — |
| 4 | Insider transaction | Sep 28, 2026 | Sep 25, 2026 |
| 4 | Insider transaction | Sep 28, 2026 | Sep 25, 2026 |
| 4 | Insider transaction | Sep 28, 2026 | Sep 25, 2026 |
| 4 | Insider transaction | Sep 28, 2026 | Sep 25, 2026 |
| 4 | Insider transaction | Sep 28, 2026 | Sep 25, 2026 |
| 4 | Insider transaction | Sep 28, 2026 | Sep 25, 2026 |
| 4 | Insider transaction | Sep 28, 2026 | Sep 25, 2026 |
| 4 | Insider transaction | Sep 28, 2026 | Sep 25, 2026 |
| 4 | Insider transaction | Sep 28, 2026 | Sep 25, 2026 |
| 4 | Insider transaction | Sep 28, 2026 | Sep 25, 2026 |
| 4 | Insider transaction | Sep 28, 2026 | Sep 25, 2026 |
| 4 | Insider transaction | Sep 28, 2026 | Sep 25, 2026 |
| 4 | Insider transaction | Sep 28, 2026 | Sep 25, 2026 |
| 4 | Insider transaction | Sep 28, 2026 | Sep 25, 2026 |
| 4 | Insider transaction | Sep 28, 2026 | Sep 25, 2026 |
| 4 | Insider transaction | Sep 28, 2026 | Sep 25, 2026 |
| 4 | Insider transaction | Sep 28, 2026 | Sep 25, 2026 |
| 4 | Insider transaction | Sep 28, 2026 | Sep 25, 2026 |
| 144 | Notice of proposed sale | Sep 16, 2026 | — |
| 4 | Insider transaction | Aug 21, 2026 | Aug 19, 2026 |
| 144 | Notice of proposed sale | Aug 20, 2026 | — |
| 144 | Notice of proposed sale | Aug 19, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Aug 14, 2026 | — |
| 144 | Notice of proposed sale | Aug 10, 2026 | — |
| 4 | Insider transaction | Aug 7, 2026 | Aug 5, 2026 |
| 4 | Insider transaction | Aug 4, 2026 | Aug 3, 2026 |
| 144 | Notice of proposed sale | Aug 3, 2026 | — |
| 4 | Insider transaction | Jul 31, 2026 | Jul 29, 2026 |
| 4 | Insider transaction | Jun 30, 2026 | Jun 26, 2026 |
| 4 | Insider transaction | Jun 30, 2026 | Jun 26, 2026 |
| 4 | Insider transaction | Jun 30, 2026 | Jun 26, 2026 |
| 4 | Insider transaction | Jun 30, 2026 | Jun 26, 2026 |
| 4 | Insider transaction | Jun 30, 2026 | Jun 26, 2026 |
| 4 | Insider transaction | Jun 30, 2026 | Jun 26, 2026 |
| 4 | Insider transaction | Jun 30, 2026 | Jun 26, 2026 |
| 4 | Insider transaction | Jun 30, 2026 | Jun 26, 2026 |
| 4 | Insider transaction | Jun 30, 2026 | Jun 26, 2026 |
| 4 | Insider transaction | Jun 30, 2026 | Jun 26, 2026 |
| 4 | Insider transaction | Jun 30, 2026 | Jun 26, 2026 |
| 4 | Insider transaction | Jun 30, 2026 | Jun 26, 2026 |
| 4 | Insider transaction | Jun 30, 2026 | Jun 26, 2026 |
| 4 | Insider transaction | Jun 30, 2026 | Jun 26, 2026 |
| 4 | Insider transaction | Jun 30, 2026 | Jun 26, 2026 |
| 4 | Insider transaction | Jun 30, 2026 | Jun 26, 2026 |
| 4 | Insider transaction | Jun 30, 2026 | Jun 26, 2026 |
| 4 | Insider transaction | Jun 30, 2026 | Jun 26, 2026 |
| 4 | Insider transaction | Jun 4, 2026 | Jun 3, 2026 |
| 144 | Notice of proposed sale | Jun 3, 2026 | — |
| 4 | Insider transaction | May 26, 2026 | May 21, 2026 |
| 4 | Insider transaction | May 21, 2026 | May 19, 2026 |
| 4 | Insider transaction | May 21, 2026 | May 20, 2026 |
| 144 | Notice of proposed sale | May 21, 2026 | — |
| 144 | Notice of proposed sale | May 20, 2026 | — |
| 144 | Notice of proposed sale | May 20, 2026 | — |
| 4 | Insider transaction | May 19, 2026 | May 15, 2026 |
| 144 | Notice of proposed sale | May 18, 2026 | — |
| 4 | Insider transaction | May 15, 2026 | May 14, 2026 |
| 144 | Notice of proposed sale | May 14, 2026 | — |
| 4 | Insider transaction | May 13, 2026 | May 12, 2026 |
| 4 | Insider transaction | May 13, 2026 | May 12, 2026 |
| 4 | Insider transaction | May 13, 2026 | May 12, 2026 |
| 4 | Insider transaction | May 13, 2026 | May 12, 2026 |
| 4 | Insider transaction | May 13, 2026 | May 12, 2026 |
| 4 | Insider transaction | May 13, 2026 | May 12, 2026 |
| 4 | Insider transaction | May 13, 2026 | May 12, 2026 |
| 4 | Insider transaction | May 13, 2026 | May 12, 2026 |
| 4 | Insider transaction | May 13, 2026 | May 12, 2026 |
| 4 | Insider transaction | May 13, 2026 | May 12, 2026 |
| 3 | Initial insider ownership | May 13, 2026 | May 13, 2026 |
| 4 | Insider transaction | May 11, 2026 | May 8, 2026 |
| 144 | Notice of proposed sale | May 8, 2026 | — |
| 4 | Insider transaction | May 5, 2026 | May 4, 2026 |
| 4 | Insider transaction | May 4, 2026 | May 1, 2026 |
| 144 | Notice of proposed sale | May 4, 2026 | — |
| 144 | Notice of proposed sale | May 1, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Apr 29, 2026 | — |
| 4 | Insider transaction | Mar 31, 2026 | Mar 27, 2026 |
| 4 | Insider transaction | Mar 31, 2026 | Mar 27, 2026 |
| 4 | Insider transaction | Mar 31, 2026 | Mar 27, 2026 |
| 4 | Insider transaction | Mar 31, 2026 | Mar 27, 2026 |
| 4 | Insider transaction | Mar 31, 2026 | Mar 27, 2026 |
| 4 | Insider transaction | Mar 31, 2026 | Mar 27, 2026 |
| 4 | Insider transaction | Mar 31, 2026 | Mar 27, 2026 |
| 4 | Insider transaction | Mar 31, 2026 | Mar 27, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Mar 27, 2026 | — |
| 4 | Insider transaction | Mar 2, 2026 | Feb 27, 2026 |
| 4 | Insider transaction | Mar 2, 2026 | Feb 27, 2026 |
| 4 | Insider transaction | Mar 2, 2026 | Feb 27, 2026 |
| 4 | Insider transaction | Mar 2, 2026 | Feb 27, 2026 |
| 4 | Insider transaction | Mar 2, 2026 | Feb 27, 2026 |
| 4 | Insider transaction | Mar 2, 2026 | Feb 27, 2026 |
| 4 | Insider transaction | Mar 2, 2026 | Feb 27, 2026 |
| 4 | Insider transaction | Mar 2, 2026 | Feb 27, 2026 |
| 4 | Insider transaction | Mar 2, 2026 | Feb 27, 2026 |
| 4 | Insider transaction | Feb 26, 2026 | Feb 24, 2026 |
| 4 | Insider transaction | Feb 26, 2026 | Feb 24, 2026 |
| 4 | Insider transaction | Feb 26, 2026 | Feb 24, 2026 |
| 4 | Insider transaction | Feb 26, 2026 | Feb 24, 2026 |
| 4 | Insider transaction | Feb 26, 2026 | Feb 24, 2026 |
| 4 | Insider transaction | Feb 26, 2026 | Feb 24, 2026 |
| 4 | Insider transaction | Feb 26, 2026 | Feb 24, 2026 |
| 4 | Insider transaction | Feb 26, 2026 | Feb 24, 2026 |
| 4 | Insider transaction | Feb 6, 2026 | Feb 5, 2026 |
| 144 | Notice of proposed sale | Feb 5, 2026 | — |
| 4 | Insider transaction | Jan 27, 2026 | Jan 23, 2026 |
| 4 | Insider transaction | Dec 29, 2025 | Dec 26, 2025 |
| 4 | Insider transaction | Dec 29, 2025 | Dec 26, 2025 |
| 4 | Insider transaction | Dec 29, 2025 | Dec 26, 2025 |
| 4 | Insider transaction | Dec 29, 2025 | Dec 26, 2025 |
| 4 | Insider transaction | Dec 29, 2025 | Dec 26, 2025 |
| 4 | Insider transaction | Dec 29, 2025 | Dec 26, 2025 |
| 4 | Insider transaction | Dec 29, 2025 | Dec 26, 2025 |
| 4 | Insider transaction | Dec 29, 2025 | Dec 26, 2025 |
| 4 | Insider transaction | Dec 3, 2025 | Dec 1, 2025 |
| 4 | Insider transaction | Dec 3, 2025 | Dec 1, 2025 |
| 4 | Insider transaction | Dec 3, 2025 | Dec 1, 2025 |
| 4 | Insider transaction | Dec 3, 2025 | Dec 1, 2025 |
| 4 | Insider transaction | Nov 13, 2025 | Nov 12, 2025 |
| 144 | Notice of proposed sale | Nov 12, 2025 | — |
| 4 | Insider transaction | Nov 6, 2025 | Nov 5, 2025 |
| 4 | Insider transaction | Nov 5, 2025 | Nov 4, 2025 |
| 4 | Insider transaction | Sep 30, 2025 | Sep 26, 2025 |
| 4 | Insider transaction | Sep 30, 2025 | Sep 26, 2025 |
| 4 | Insider transaction | Sep 30, 2025 | Sep 26, 2025 |
| 4 | Insider transaction | Sep 30, 2025 | Sep 26, 2025 |
| 4 | Insider transaction | Sep 30, 2025 | Sep 26, 2025 |
| 4 | Insider transaction | Sep 30, 2025 | Sep 26, 2025 |
| 4 | Insider transaction | Sep 30, 2025 | Sep 26, 2025 |
| 4 | Insider transaction | Sep 30, 2025 | Sep 26, 2025 |
| 4 | Insider transaction | Aug 5, 2025 | Aug 1, 2025 |
| 144 | Notice of proposed sale | Aug 1, 2025 | — |
| 4 | Insider transaction | Jun 30, 2025 | Jun 27, 2025 |
| 4 | Insider transaction | Jun 30, 2025 | Jun 27, 2025 |
| 4 | Insider transaction | Jun 30, 2025 | Jun 27, 2025 |
| 4 | Insider transaction | Jun 30, 2025 | Jun 27, 2025 |
| 4 | Insider transaction | Jun 30, 2025 | Jun 27, 2025 |
| 4 | Insider transaction | Jun 30, 2025 | Jun 27, 2025 |
| 4 | Insider transaction | Jun 30, 2025 | Jun 27, 2025 |
| 4 | Insider transaction | Jun 30, 2025 | Jun 27, 2025 |
| 4 | Insider transaction | May 23, 2025 | May 23, 2025 |
| 4 | Insider transaction | May 15, 2025 | May 14, 2025 |
| 4 | Insider transaction | May 15, 2025 | May 14, 2025 |
| 4 | Insider transaction | May 15, 2025 | May 14, 2025 |
| 4 | Insider transaction | May 15, 2025 | May 14, 2025 |
| 4 | Insider transaction | May 15, 2025 | May 14, 2025 |
| 4 | Insider transaction | May 15, 2025 | May 14, 2025 |
| 4 | Insider transaction | May 15, 2025 | May 14, 2025 |
| 4 | Insider transaction | May 15, 2025 | May 14, 2025 |
| 4 | Insider transaction | May 15, 2025 | May 14, 2025 |
| 4 | Insider transaction | May 15, 2025 | May 14, 2025 |
| 3 | Initial insider ownership | May 15, 2025 | May 13, 2025 |
| 4 | Insider transaction | May 8, 2025 | May 7, 2025 |
| 144 | Notice of proposed sale | May 7, 2025 | — |
| 4 | Insider transaction | Apr 2, 2025 | Apr 1, 2025 |
| 144 | Notice of proposed sale | Apr 1, 2025 | — |
| 4 | Insider transaction | Apr 1, 2025 | Mar 28, 2025 |
| 4 | Insider transaction | Apr 1, 2025 | Mar 28, 2025 |
| 4 | Insider transaction | Apr 1, 2025 | Mar 28, 2025 |
| 4 | Insider transaction | Apr 1, 2025 | Mar 28, 2025 |
| 4 | Insider transaction | Apr 1, 2025 | Mar 28, 2025 |
| 4 | Insider transaction | Apr 1, 2025 | Mar 28, 2025 |
| 4 | Insider transaction | Apr 1, 2025 | Mar 28, 2025 |
| 4 | Insider transaction | Apr 1, 2025 | Mar 28, 2025 |
| 144 | Notice of proposed sale | Mar 31, 2025 | — |
| 4 | Insider transaction | Mar 28, 2025 | Mar 26, 2025 |
| 144 | Notice of proposed sale | Mar 28, 2025 | — |
| 144 | Notice of proposed sale | Mar 27, 2025 | — |
| 144 | Notice of proposed sale | Mar 26, 2025 | — |
| 4 | Insider transaction | Mar 4, 2025 | Mar 3, 2025 |
| 4 | Insider transaction | Mar 4, 2025 | Mar 3, 2025 |
| 144 | Notice of proposed sale | Mar 3, 2025 | — |
| 4 | Insider transaction | Mar 3, 2025 | Feb 28, 2025 |
| 4 | Insider transaction | Mar 3, 2025 | Feb 27, 2025 |
| 4 | Insider transaction | Mar 3, 2025 | Feb 28, 2025 |
| 4 | Insider transaction | Mar 3, 2025 | Feb 28, 2025 |
| 4 | Insider transaction | Mar 3, 2025 | Feb 28, 2025 |
| 4 | Insider transaction | Mar 3, 2025 | Feb 28, 2025 |
| 4 | Insider transaction | Mar 3, 2025 | Feb 28, 2025 |
| 144 | Notice of proposed sale | Mar 3, 2025 | — |
| 144 | Notice of proposed sale | Mar 3, 2025 | — |
| 144 | Notice of proposed sale | Feb 27, 2025 | — |
| 4 | Insider transaction | Feb 26, 2025 | Feb 24, 2025 |
| 4 | Insider transaction | Feb 26, 2025 | Feb 24, 2025 |
| 4 | Insider transaction | Feb 26, 2025 | Feb 24, 2025 |
| 4 | Insider transaction | Feb 26, 2025 | Feb 24, 2025 |
| 4 | Insider transaction | Feb 26, 2025 | Feb 24, 2025 |
| 4 | Insider transaction | Feb 26, 2025 | Feb 24, 2025 |
| 4 | Insider transaction | Feb 26, 2025 | Feb 25, 2025 |
| 4 | Insider transaction | Feb 26, 2025 | Feb 24, 2025 |
| 4 | Insider transaction | Feb 26, 2025 | Feb 24, 2025 |
| 4 | Insider transaction | Jan 16, 2025 | Jan 15, 2025 |
| 4 | Insider transaction | Dec 30, 2024 | Dec 27, 2024 |
| 4 | Insider transaction | Dec 30, 2024 | Dec 27, 2024 |
| 4 | Insider transaction | Dec 30, 2024 | Dec 27, 2024 |
| 4 | Insider transaction | Dec 30, 2024 | Dec 27, 2024 |
| 4 | Insider transaction | Dec 30, 2024 | Dec 27, 2024 |
| 4 | Insider transaction | Dec 30, 2024 | Dec 27, 2024 |
Showing 200 filings, the most recent 200. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- Fire, Marine & Casualty Insurance (SIC 6331)
- Listed as
- THG (NYSE)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Worcester, MA
- SEC filer status
- Large accelerated filer
- SEC CIK
- 944695
- Former names
- ALLMERICA FINANCIAL CORP (until Nov 14, 2005)
Other Fire, Marine & Casualty Insurance companies
Source: SEC EDGAR filings. This is company-reported data, not investment advice.