{"schema_version":"secwatch.filing_event.v1","accession":"0001140361-25-027350","form_type":"8-K","ticker":"BMY","cik":"0000014272","company_name":"BRISTOL MYERS SQUIBB CO","filed_at":"2025-07-25T23:59:59+00:00","discovered_at":"2026-05-14T18:02:43.965647+00:00","generated_at":"2026-05-18T00:56:30.788124+00:00","sec_items":["5.02","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.55,"calibrated_materiality_score":0.55,"confidence":"high","headline":"Bristol Myers Squibb appoints Cristian Massacesi as CMO; Samit Hirawat departs by Nov 1","bullets":["Cristian Massacesi, M.D., named EVP, Chief Medical Officer and Head of Development, effective August 1, 2025.","Samit Hirawat, M.D., steps down as CMO and Head of Development on August 1; will remain advisor through November 1, 2025.","Massacesi will oversee early- and late-stage development across all therapeutic areas and serve on Executive Leadership Team.","Hirawat leaves after six years; company cites his role in advancing pipeline across oncology, hematology, immunology, cardiovascular, neuroscience."],"urls":{"canonical":"https://secwatch.observer/filing/0001140361-25-027350","json":"https://secwatch.observer/filing/0001140361-25-027350.json","markdown":"https://secwatch.observer/filing/0001140361-25-027350.md","text":"https://secwatch.observer/filing/0001140361-25-027350.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/14272/000114036125027350/0001140361-25-027350-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/14272/000114036125027350/ef20052589_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-18T00:56:30.788124+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"}