{"schema_version":"secwatch.filing_event.v1","accession":"0001104659-23-097781","form_type":"8-K","ticker":"DHC","cik":"0001075415","company_name":"DIVERSIFIED HEALTHCARE TRUST","filed_at":"2023-09-01T23:59:59+00:00","discovered_at":"2026-05-14T18:03:33.083381+00:00","generated_at":"2026-06-11T00:20:51.274849+00:00","sec_items":["1.01","1.02","8.01","9.01"],"event_type":"m_and_a","sentiment":"neutral","materiality_score":0.75,"calibrated_materiality_score":0.75,"confidence":"high","headline":"DHC and OPI mutually terminate merger agreement; no termination fee","bullets":["Mutual termination effective September 1, 2023; no termination fee payable by either party.","Special meetings of shareholders scheduled for September 6, 2023, cancelled.","Each company bears its own costs and expenses related to the terminated merger.","Merger agreement originally signed on April 11, 2023, for OPI to acquire all DHC common shares."],"urls":{"canonical":"https://secwatch.observer/filing/0001104659-23-097781","json":"https://secwatch.observer/filing/0001104659-23-097781.json","markdown":"https://secwatch.observer/filing/0001104659-23-097781.md","text":"https://secwatch.observer/filing/0001104659-23-097781.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1075415/000110465923097781/0001104659-23-097781-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1075415/000110465923097781/tm2325112d4_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-11T00:20:51.274849+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":"64cd871f7602b2abacd9341bc845e875547fdd93","claim":"DIVERSIFIED HEALTHCARE TRUST terminated Agreement and Plan of Merger with Office Properties Income Trust valued at Mutual termination of Merger Agreement; no termination fee (effective 2023-09-01).","evidence_excerpt":"On September 1, 2023, we and OPI mutually agreed to terminate the Merger Agreement and entered into a termination agreement, or the Termination Agreement.","evidence_source":"SEC 8-K Item 1.01/1.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1075415/000110465923097781/0001104659-23-097781-index.htm","confidence":0.9,"family_label":"Material Agreements","details":[{"label":"Action","value":"termination"},{"label":"Agreement","value":"merger"},{"label":"Counterparty","value":"Office Properties Income Trust"},{"label":"Value","value":"Mutual termination of Merger Agreement; no termination fee"},{"label":"Effective","value":"2023-09-01"}],"fact_type":"material_agreement"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}