{"schema_version":"secwatch.filing_event.v1","accession":"0001517302-25-000020","form_type":"8-K","ticker":"APAM","cik":"0001517302","company_name":"Artisan Partners Asset Management Inc.","filed_at":"2025-03-04T23:59:59+00:00","discovered_at":"2026-05-14T18:03:03.862417+00:00","generated_at":"2026-05-25T13:50:45.696669+00:00","sec_items":["5.02","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.65,"calibrated_materiality_score":0.65,"confidence":"high","headline":"Artisan Partners names Jason Gottlieb CEO, Eric Colson becomes Executive Chair","bullets":["Jason Gottlieb, current President, named CEO effective June 4, 2025; Eric Colson becomes Executive Chair.","Stephanie DiMarco transitions from Chair to Lead Independent Director on same date.","Gottlieb joined Artisan in 2016; previously a partner at Goldman Sachs.","Compensation framework for Gottlieb and Colson will not change materially.","Succession is culmination of long-term leadership plan, per Colson."],"urls":{"canonical":"https://secwatch.observer/filing/0001517302-25-000020","json":"https://secwatch.observer/filing/0001517302-25-000020.json","markdown":"https://secwatch.observer/filing/0001517302-25-000020.md","text":"https://secwatch.observer/filing/0001517302-25-000020.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1517302/000151730225000020/0001517302-25-000020-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1517302/000151730225000020/apam-20250303.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-25T13:50:45.696669+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":"393df66dd1","claim":"Eric R. Colson was appointed as Executive Chair and Chair of the Board at Artisan Partners Asset Management Inc..","evidence_excerpt":"the Board has appointed Mr. Colson Executive Chair and Chair of the Board, effective as of Transition Date.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1517302/000151730225000020/0001517302-25-000020-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"Executive Chair and Chair of the Board"}],"fact_type":"executive_change"},{"claim_id":"c2d1b926c2","claim":"Jason A. Gottlieb was elected as Director at Artisan Partners Asset Management Inc..","evidence_excerpt":"it is expected that Mr. Gottlieb will also be elected to the Board.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1517302/000151730225000020/0001517302-25-000020-index.htm","confidence":0.9,"family_label":"Executive change","details":[{"label":"Action","value":"elected"},{"label":"Role","value":"Director"}],"fact_type":"executive_change"},{"claim_id":"d72bf0a7e6","claim":"Jason A. Gottlieb was appointed as Chief Executive Officer at Artisan Partners Asset Management Inc..","evidence_excerpt":"the Company’s board of directors (the “Board”) appointed Jason A. Gottlieb, currently President of the Company, to succeed Eric R. Colson as Chief Executive Officer effective June 4, 2025","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1517302/000151730225000020/0001517302-25-000020-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"Chief Executive Officer"}],"fact_type":"executive_change"},{"claim_id":"ff3ed3c2ef","claim":"Stephanie DiMarco changed role as Lead Independent Director at Artisan Partners Asset Management Inc..","evidence_excerpt":"Ms. DiMarco, currently Chair of the Board, will transition to Lead Independent Director as of the Transition Date.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1517302/000151730225000020/0001517302-25-000020-index.htm","confidence":0.9,"family_label":"Executive change","details":[{"label":"Action","value":"transition"},{"label":"Role","value":"Lead Independent Director"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}