{"schema_version":"secwatch.filing_event.v1","accession":"0001628280-26-035349","form_type":"8-K","ticker":"WTM","cik":"0000776867","company_name":"WHITE MOUNTAINS INSURANCE GROUP LTD","filed_at":"2026-05-15T13:02:53+00:00","discovered_at":"2026-05-15T13:05:00.238250+00:00","generated_at":"2026-05-15T13:05:50.252442+00:00","sec_items":["1.01","2.03","9.01"],"event_type":"debt","sentiment":"positive","materiality_score":0.65,"calibrated_materiality_score":0.65,"confidence":"high","headline":"White Mountains' HG Global unit issues $200M 7.39% senior notes due 2036","bullets":["Net proceeds will repay $150M existing term loan (9.93% floating), pay fees, and fund a dividend to White Mountains.","New notes bear fixed 7.39% interest, mature May 14, 2036, secured by collateral.","Debt refinancing reduces interest cost; fixed rate provides predictable expense.","Transaction closed May 14, 2026; notes placed privately with institutional purchasers."],"urls":{"canonical":"https://secwatch.observer/filing/0001628280-26-035349","json":"https://secwatch.observer/filing/0001628280-26-035349.json","markdown":"https://secwatch.observer/filing/0001628280-26-035349.md","text":"https://secwatch.observer/filing/0001628280-26-035349.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/776867/000162828026035349/0001628280-26-035349-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/776867/000162828026035349/wtm-20260514.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-15T13:05:50.252442+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":"ee8af67f1526172aafa7e3bd9f2c59a17ad24e9b","claim":"WHITE MOUNTAINS INSURANCE GROUP LTD incurred senior notes of $200,000,000 aggregate principal amount with the purchasers party thereto at fixed rate of 7.39% per annum maturing May 14, 2036.","evidence_excerpt":"On May 15, 2026, White Mountains Insurance Group, Ltd. (NYSE: WTM) (“White Mountains”) announced that HG Global Ltd. (“HGG”), a direct subsidiary of White Mountains, completed a private placement of $200,000,000 aggregate principal amount of fixed rate senior secured notes (the “New Notes”).","evidence_source":"SEC 8-K Item 2.03/2.04","evidence_url":"https://www.sec.gov/Archives/edgar/data/776867/000162828026035349/0001628280-26-035349-index.htm","confidence":0.9,"family_label":"Debt Financings","details":[{"label":"Instrument","value":"senior notes"},{"label":"Principal","value":"$200,000,000 aggregate principal amount"},{"label":"Counterparty","value":"the purchasers party thereto"},{"label":"Rate","value":"fixed rate of 7.39% per annum"},{"label":"Maturity","value":"May 14, 2036"},{"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"}