{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-25-137112","form_type":"8-K","ticker":"AMG","cik":"0001004434","company_name":"AFFILIATED MANAGERS GROUP, INC.","filed_at":"2025-06-06T23:59:59+00:00","discovered_at":"2026-05-14T18:02:47.129118+00:00","generated_at":"2026-05-19T17:56:54.140074+00:00","sec_items":["5.02","7.01","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.5,"calibrated_materiality_score":0.5,"confidence":"high","headline":"AMG appoints Thomas M. Wojcik as President, retains COO role; RSU award of $5M","bullets":["Thomas M. Wojcik appointed President effective June 3, 2025; continues as COO.","CEO Jay C. Horgen remains CEO; previously held both President and CEO roles.","Compensation Committee approved $5M RSU award (performance-based, vesting March 2030).","Wojcik joined AMG in 2019 as CFO, named COO in 2024; previously at BlackRock."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-25-137112","json":"https://secwatch.observer/filing/0001193125-25-137112.json","markdown":"https://secwatch.observer/filing/0001193125-25-137112.md","text":"https://secwatch.observer/filing/0001193125-25-137112.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1004434/000119312525137112/0001193125-25-137112-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1004434/000119312525137112/d85066d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-19T17:56:54.140074+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":"0e9e8a9fca","claim":"Jay C. Horgen changed role as Chief Executive Officer at AFFILIATED MANAGERS GROUP, INC..","evidence_excerpt":"Jay C. Horgen, previously President and Chief Executive Officer, will continue as Chief Executive Officer of the Company.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1004434/000119312525137112/0001193125-25-137112-index.htm","confidence":0.7,"family_label":"Executive change","details":[{"label":"Role","value":"Chief Executive Officer"}],"fact_type":"executive_change"},{"claim_id":"b35887ca85","claim":"Thomas M. Wojcik was appointed as President and Chief Operating Officer at AFFILIATED MANAGERS GROUP, INC..","evidence_excerpt":"On June 3, 2025, Thomas M. Wojcik was appointed President of Affiliated Managers Group, Inc. (the “Company”).","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1004434/000119312525137112/0001193125-25-137112-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"President and Chief Operating Officer"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}