{"filing":{"accession_number":"0001104659-26-107960","cik":"0001172052","ticker":"SAFT","company_name":"SAFETY INSURANCE GROUP INC","form":"8-K","filing_date":"2026-09-15","report_date":"2026-09-14","primary_document":"tm2625481d1_8k.htm","primary_document_url":"https://www.sec.gov/Archives/edgar/data/1172052/000110465926107960/tm2625481d1_8k.htm"},"events":[{"id":33673,"run_id":30973,"accession_number":"0001104659-26-107960","anchor_item_number":"8.01","event_type":"ma_activity","event_domain":"operational","is_material":true,"confidence":0.95,"summary":"Safety Insurance Group disclosed that the HSR Act waiting period for its merger with MAPFRE U.S.A. Corp. expired on September 14, 2026, satisfying a key condition to closing. This represents material progress toward completion of a previously announced merger transaction that will result in Safety becoming a wholly owned subsidiary of MAPFRE, a change of control that is clearly material to investors.","company_name":"SAFETY INSURANCE GROUP INC","ticker":"SAFT","filing_date":"2026-09-15","form":"8-K","submitted_at":null,"items":[{"id":37187,"accession_number":"0001104659-26-107960","item_number":"8.01","item_title":null,"event_type":"ma_activity","event_domain":"operational","is_material":true,"confidence":0.95,"reasoning":"Safety Insurance Group disclosed that the HSR Act waiting period for its merger with MAPFRE U.S.A. Corp. expired on September 14, 2026, satisfying a key condition to closing. This represents material progress toward completion of a previously announced merger transaction that will result in Safety becoming a wholly owned subsidiary of MAPFRE, a change of control that is clearly material to investors.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-09-15T20:50:37.335005+00:00","company_name":"","ticker":null,"filing_date":""}]}],"classifications":[{"id":37187,"accession_number":"0001104659-26-107960","item_number":"8.01","item_title":null,"event_type":"ma_activity","event_domain":"operational","is_material":true,"confidence":0.95,"reasoning":"Safety Insurance Group disclosed that the HSR Act waiting period for its merger with MAPFRE U.S.A. Corp. expired on September 14, 2026, satisfying a key condition to closing. This represents material progress toward completion of a previously announced merger transaction that will result in Safety becoming a wholly owned subsidiary of MAPFRE, a change of control that is clearly material to investors.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-09-15T20:50:37.335005+00:00","company_name":"SAFETY INSURANCE GROUP INC","ticker":"SAFT","filing_date":"2026-09-15"}]}