{"schema_version":"secwatch.filing_event.v1","accession":"0000062709-21-000051","form_type":"8-K","ticker":"MRSH","cik":"0000062709","company_name":"MARSH & MCLENNAN COMPANIES, INC.","filed_at":"2021-11-22T23:59:59+00:00","discovered_at":"2026-05-14T18:04:15.256062+00:00","generated_at":"2026-06-28T06:19:51.304829+00:00","sec_items":["5.02","9.01"],"event_type":"leadership","sentiment":"positive","materiality_score":0.65,"calibrated_materiality_score":0.65,"confidence":"high","headline":"Marsh McLennan promotes John Doyle to Group President and COO, names new Marsh and Guy Carpenter CEOs","bullets":["John Doyle promoted to Group President & COO of Marsh McLennan effective Jan 1, 2022; will report to CEO Dan Glaser.","Martin South succeeds Doyle as Marsh President & CEO; Dean Klisura succeeds Hearn as Guy Carpenter President & CEO, both effective Jan 1, 2022.","Doyle receives $1M stock unit grant (vests Jan 2025), $1.2M base salary, $2.8M bonus target, $4M LTI target for 2022.","Peter Hearn steps down as Guy Carpenter CEO, continues as Vice Chair; Dominic Burke to retire mid-Jan 2022."],"urls":{"canonical":"https://secwatch.observer/filing/0000062709-21-000051","json":"https://secwatch.observer/filing/0000062709-21-000051.json","markdown":"https://secwatch.observer/filing/0000062709-21-000051.md","text":"https://secwatch.observer/filing/0000062709-21-000051.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/62709/000006270921000051/0000062709-21-000051-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/62709/000006270921000051/mmc-20211117.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-28T06:19:51.304829+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":"1135466b78","claim":"Dean Klisura was appointed as President and Chief Executive Officer of Guy Carpenter at MARSH & MCLENNAN COMPANIES, INC..","evidence_excerpt":"Dean Klisura will be appointed President and Chief Executive Officer of Guy Carpenter and Vice Chair of the Company, effective January 1, 2022","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/62709/000006270921000051/0000062709-21-000051-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"President and Chief Executive Officer of Guy Carpenter"}],"fact_type":"executive_change"},{"claim_id":"4721d6baa4","claim":"Martin South was appointed as President and Chief Executive Officer of Marsh LLC at MARSH & MCLENNAN COMPANIES, INC..","evidence_excerpt":"Martin South, President of Marsh US and Canada, will succeed Mr. Doyle as President and Chief Executive Officer of Marsh LLC, effective January 1, 2022.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/62709/000006270921000051/0000062709-21-000051-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"succeed"},{"label":"Role","value":"President and Chief Executive Officer of Marsh LLC"}],"fact_type":"executive_change"},{"claim_id":"b5c8564892","claim":"John Doyle was appointed as Group President and Chief Operating Officer at MARSH & MCLENNAN COMPANIES, INC..","evidence_excerpt":"John Doyle, 57, will be appointed Group President and Chief Operating Officer.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/62709/000006270921000051/0000062709-21-000051-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"Group President and Chief Operating Officer"}],"fact_type":"executive_change"},{"claim_id":"d7f07bd642","claim":"Peter Hearn changed role as Vice Chair at MARSH & MCLENNAN COMPANIES, INC..","evidence_excerpt":"Effective January 1, 2022, Mr. Hearn will no longer serve as the President and Chief Executive Officer of Guy Carpenter.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/62709/000006270921000051/0000062709-21-000051-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"will no longer serve as"},{"label":"Role","value":"Vice Chair"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}