{"schema_version":"secwatch.filing_event.v1","accession":"0000950170-25-002193","form_type":"8-K","ticker":null,"cik":"0001673772","company_name":"RAPT Therapeutics, Inc.","filed_at":"2025-01-06T23:59:59+00:00","discovered_at":"2026-05-14T18:03:04.393995+00:00","generated_at":"2026-05-28T10:54:32.087598+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.3,"calibrated_materiality_score":0.3,"confidence":"high","headline":"RAPT Therapeutics appoints Lori Lyons-Williams as Board Chair; Rieflin resigns","bullets":["William Rieflin resigned from Board effective Jan 3, 2025; no disagreement with company.","He continues as consultant; Board size reduced to six directors.","Lori Lyons-Williams appointed Chair of the Board on Jan 5, 2025.","Linda Kozick appointed to Audit Committee in connection with changes."],"urls":{"canonical":"https://secwatch.observer/filing/0000950170-25-002193","json":"https://secwatch.observer/filing/0000950170-25-002193.json","markdown":"https://secwatch.observer/filing/0000950170-25-002193.md","text":"https://secwatch.observer/filing/0000950170-25-002193.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1673772/000095017025002193/0000950170-25-002193-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1673772/000095017025002193/rapt-20250103.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-28T10:54:32.087598+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":"17740b8217","claim":"Lori Lyons-Williams was appointed as Chair of the Board at RAPT Therapeutics, Inc..","evidence_excerpt":"On January 5, 2025, the Board appointed Lori Lyons-Williams as Chair of the Board to succeed Mr. Rieflin.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1673772/000095017025002193/0000950170-25-002193-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"Chair of the Board"}],"fact_type":"executive_change"},{"claim_id":"b8491b3831","claim":"William Rieflin resigned as director at RAPT Therapeutics, Inc..","evidence_excerpt":"On January 3, 2025, William Rieflin resigned from the Board of Directors (the “Board”) of RAPT Therapeutics, Inc. (the “Company”), effective immediately.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1673772/000095017025002193/0000950170-25-002193-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"resigned"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}