{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-25-320900","form_type":"8-K","ticker":"THG","cik":"0000944695","company_name":"HANOVER INSURANCE GROUP, INC.","filed_at":"2025-12-16T23:59:59+00:00","discovered_at":"2026-05-14T18:02:42.685539+00:00","generated_at":"2026-05-16T13:09:22.619880+00:00","sec_items":["7.01","9.01"],"event_type":"debt","sentiment":"neutral","materiality_score":0.3,"calibrated_materiality_score":0.3,"confidence":"high","headline":"Hanover Insurance calls for redemption of $375M 4.500% Notes due 2026","bullets":["Redemption of all $375M outstanding 4.500% Notes due 2026 on January 15, 2026.","Redemption price equals 100% of principal plus accrued interest to redemption date.","Notes were issued under Indenture dated April 8, 2016, with U.S. Bank as trustee.","Notice of redemption to be delivered by trustee to registered holders."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-25-320900","json":"https://secwatch.observer/filing/0001193125-25-320900.json","markdown":"https://secwatch.observer/filing/0001193125-25-320900.md","text":"https://secwatch.observer/filing/0001193125-25-320900.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/944695/000119312525320900/0001193125-25-320900-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/944695/000119312525320900/thg-20251216.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-16T13:09:22.619880+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}