{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-23-240937","form_type":"8-K","ticker":"AMG","cik":"0001004434","company_name":"AFFILIATED MANAGERS GROUP, INC.","filed_at":"2023-09-25T23:59:59+00:00","discovered_at":"2026-05-14T18:03:32.826370+00:00","generated_at":"2026-06-10T09:06:47.934264+00:00","sec_items":["5.02","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.3,"calibrated_materiality_score":0.3,"confidence":"high","headline":"AMG appoints Loren M. Starr, former Invesco CFO, to Board of Directors","bullets":["Loren M. Starr appointed as an independent director effective September 25, 2023.","Starr served as Invesco CFO for 15 years (2005-2020) and Vice Chair until March 2021.","Previously CFO of Janus Capital Group (2001-2005) and roles at Putnam, Lehman, Morgan Stanley.","Will participate in standard director compensation and enter standard indemnification agreement.","No arrangements or familial relationships with any director or executive officer."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-23-240937","json":"https://secwatch.observer/filing/0001193125-23-240937.json","markdown":"https://secwatch.observer/filing/0001193125-23-240937.md","text":"https://secwatch.observer/filing/0001193125-23-240937.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1004434/000119312523240937/0001193125-23-240937-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1004434/000119312523240937/d536763d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-10T09:06:47.934264+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":"85294fcbd4","claim":"Loren M. Starr was appointed as Director at AFFILIATED MANAGERS GROUP, INC..","evidence_excerpt":"On September 25, 2023, Affiliated Managers Group, Inc. (the “Company”) announced the appointment of Loren M. Starr to its Board of Directors, as an additional independent director, effective immediately.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1004434/000119312523240937/0001193125-23-240937-index.htm","confidence":1.0,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"Director"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}