{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-25-185293","form_type":"8-K","ticker":"THG","cik":"0000944695","company_name":"HANOVER INSURANCE GROUP, INC.","filed_at":"2025-08-21T23:59:59+00:00","discovered_at":"2026-05-14T18:02:46.746971+00:00","generated_at":"2026-05-17T11:02:41.735561+00:00","sec_items":["2.03","8.01","9.01"],"event_type":"debt","sentiment":"neutral","materiality_score":0.65,"calibrated_materiality_score":0.65,"confidence":"high","headline":"Hanover Insurance prices $500M 5.50% senior notes due 2035, to refinance near-term debt","bullets":["$500M of 5.50% senior notes due Sept 1, 2035 priced on Aug 19, 2025.","Proceeds to repay 7.625% notes due Oct 2025 and 4.500% notes due Apr 2026.","Closing expected Aug 21, 2025; joint book-runners: Goldman Sachs, J.P. Morgan, Morgan Stanley."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-25-185293","json":"https://secwatch.observer/filing/0001193125-25-185293.json","markdown":"https://secwatch.observer/filing/0001193125-25-185293.md","text":"https://secwatch.observer/filing/0001193125-25-185293.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/944695/000119312525185293/0001193125-25-185293-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/944695/000119312525185293/d938751d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-17T11:02:41.735561+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":[{"claim_id":"35caca13d726368d2a6dd5a09340c271396af89f","claim":"HANOVER INSURANCE GROUP, INC. incurred senior notes of $500 million at 5.50% maturing September 1, 2035.","evidence_excerpt":"priced a registered offering of $500 million aggregate principal amount of senior, unsecured 5.50% notes due September 1, 2035","evidence_source":"SEC 8-K Item 2.03/2.04","evidence_url":"https://www.sec.gov/Archives/edgar/data/944695/000119312525185293/0001193125-25-185293-index.htm","confidence":0.9,"family_label":"Debt Financings","details":[{"label":"Instrument","value":"senior notes"},{"label":"Principal","value":"$500 million"},{"label":"Rate","value":"5.50%"},{"label":"Maturity","value":"September 1, 2035"},{"label":"Event","value":"incurrence"}],"fact_type":"debt_financing"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}