{"schema_version":"secwatch.filing_event.v1","accession":"0000062709-23-000083","form_type":"8-K","ticker":"MRSH","cik":"0000062709","company_name":"MARSH & MCLENNAN COMPANIES, INC.","filed_at":"2023-10-12T23:59:59+00:00","discovered_at":"2026-05-14T18:03:31.739896+00:00","generated_at":"2026-06-10T01:20:19.667476+00:00","sec_items":["5.02","8.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.55,"calibrated_materiality_score":0.55,"confidence":"high","headline":"Mercer CEO Martine Ferland to retire March 31, 2024; Pat Tomlinson named successor","bullets":["Martine Ferland to retire as Mercer President and CEO on March 31, 2024; will oversee regional leaders until then.","Patrick Tomlinson appointed Mercer President effective Oct 12, 2023; will become CEO and Vice Chair on April 1, 2024.","Tomlinson retains roles as Marsh McLennan US and Canada CEO and Mercer US and Canada President in the near term.","Tomlinson joined Mercer in 2014; previously 17 years at Aon and served as US Army officer."],"urls":{"canonical":"https://secwatch.observer/filing/0000062709-23-000083","json":"https://secwatch.observer/filing/0000062709-23-000083.json","markdown":"https://secwatch.observer/filing/0000062709-23-000083.md","text":"https://secwatch.observer/filing/0000062709-23-000083.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/62709/000006270923000083/0000062709-23-000083-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/62709/000006270923000083/mmc-20231009.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-10T01:20:19.667476+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":"c158579f90","claim":"Martine Ferland departed as President and Chief Executive Officer of Mercer at MARSH & MCLENNAN COMPANIES, INC..","evidence_excerpt":"On October 9, 2023, Martine Ferland informed Marsh & McLennan Companies, Inc. (the “Company”) of her intention to retire as Mercer’s President and Chief Executive Officer on March 31, 2024.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/62709/000006270923000083/0000062709-23-000083-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"retire"},{"label":"Role","value":"President and Chief Executive Officer of Mercer"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}