THG - CIK 0000944695
HANOVER INSURANCE GROUP, INC. has filed 2,365 documents with the SEC between 1996 and 2026. The most frequent type is insider trade (1,440 filings), alongside the regular cadence of annual reports, quarterly reports, and event disclosures every public company must make. Use the filters to focus on one filing type, or flip the sort to trace the company's history from its earliest paperwork.
Data parsed from SEC EDGAR XBRL filings. See the full market cap rankings.
| Filing | Type | Filed | Period covered |
|---|---|---|---|
| Major company event | 8-K | 2010-02-23 | 2010-02-18 |
| Prospectus supplement | 424B2 | 2010-02-19 | - |
| Free writing prospectus | FWP | 2010-02-18 | - |
| Prospectus supplement | 424B2 | 2010-02-18 | - |
| Insider trade | 4 | 2010-02-17 | 2010-02-16 |
| Insider trade | 4 | 2010-02-17 | 2010-02-16 |
| Insider trade | 4 | 2010-02-17 | 2010-02-16 |
| Insider trade | 4 | 2010-02-17 | 2010-02-16 |
| Insider trade | 4 | 2010-02-17 | 2010-02-16 |
| Major company event | 8-K | 2010-02-04 | 2010-02-03 |
| Passive ownership stake | SC 13G | 2010-01-29 | - |
| S-3ASR | - | 2010-01-21 | - |
| Insider trade | 4 | 2010-01-08 | 2010-01-06 |
| Major company event | 8-K | 2010-01-08 | 2010-01-06 |
| New insider ownership | 3 | 2010-01-07 | 2010-01-06 |
| Insider trade | 4 | 2010-01-05 | 2010-01-04 |
| Insider trade | 4 | 2010-01-05 | 2010-01-04 |
| Insider trade | 4 | 2010-01-04 | 2009-12-31 |
| Insider trade | 4 | 2009-12-30 | 2009-12-28 |
| Insider trade | 4 | 2009-12-30 | 2009-12-28 |
| New insider ownership | 3 | 2009-12-23 | 2009-12-22 |
| New insider ownership | 3 | 2009-12-23 | 2009-12-22 |
| Major company event | 8-K | 2009-12-09 | 2009-12-08 |
| Major company event | 8-K | 2009-12-08 | 2009-12-03 |
| Insider trade | 4 | 2009-11-17 | 2009-11-16 |
| Insider trade | 4 | 2009-11-17 | 2009-11-16 |
| Insider trade | 4 | 2009-11-17 | 2009-11-16 |
| SEC correspondence | UPLOAD | 2009-11-12 | - |
| Quarterly report | 10-Q | 2009-11-04 | 2009-09-30 |
| Company correspondence | CORRESP | 2009-11-04 | - |
| Major company event | 8-K | 2009-11-02 | 2009-11-02 |
| Company correspondence | CORRESP | 2009-10-29 | - |
| Major company event | 8-K | 2009-10-21 | 2009-10-20 |
| SEC correspondence | UPLOAD | 2009-10-15 | - |
| Major company event | 8-K | 2009-09-25 | 2009-09-25 |
| Major company event | 8-K | 2009-09-25 | 2009-09-24 |
| Company correspondence | CORRESP | 2009-09-18 | - |
| Company correspondence | CORRESP | 2009-09-02 | - |
| SEC correspondence | UPLOAD | 2009-08-21 | - |
| Insider trade | 4 | 2009-08-19 | 2009-08-18 |
| Insider trade | 4 | 2009-08-19 | 2009-08-17 |
| Insider trade | 4 | 2009-08-19 | 2009-08-17 |
| Insider trade | 4 | 2009-08-19 | 2009-08-17 |
| Quarterly report | 10-Q | 2009-08-07 | 2009-06-30 |
| Major company event | 8-K | 2009-07-31 | 2009-07-30 |
| New insider ownership | 3 | 2009-07-22 | 2009-07-14 |
| Company correspondence | CORRESP | 2009-07-10 | - |
| Major company event | 8-K | 2009-07-01 | 2009-06-30 |
| Employee plan annual report | 11-K | 2009-06-26 | 2008-12-31 |
| Employee plan annual report | 11-K | 2009-06-26 | 2008-12-31 |