{"schema_version":"secwatch.filing_event.v1","accession":"0001213900-24-085116","form_type":"8-K","ticker":null,"cik":"0001845459","company_name":"NKGen Biotech, Inc.","filed_at":"2024-10-03T23:59:59+00:00","discovered_at":"2026-05-14T18:03:10.008380+00:00","generated_at":"2026-05-30T21:40:19.492094+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.45,"calibrated_materiality_score":0.45,"confidence":"high","headline":"Three NKGen Biotech directors Klowden, Park, Scott resign; board shrinks to 2","bullets":["Michael Klowden, Sangwoo Park, and Kathleen Scott resigned as directors effective Sept 29, 2024, one-year anniversary of service.","Resignations not due to any dispute with the company or board.","Board size temporarily reduced from 5 to 2 directors; committees each reduced to 1 member.","Board will seek new appointees within 180 days; discussions ongoing for Klowden and Scott reappointment.","CEO Paul Y. Song thanked the departing directors for their service."],"urls":{"canonical":"https://secwatch.observer/filing/0001213900-24-085116","json":"https://secwatch.observer/filing/0001213900-24-085116.json","markdown":"https://secwatch.observer/filing/0001213900-24-085116.md","text":"https://secwatch.observer/filing/0001213900-24-085116.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1845459/000121390024085116/0001213900-24-085116-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1845459/000121390024085116/ea0216077-8k_nkgen.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-30T21:40:19.492094+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":"3148b7d363","claim":"Michael Klowden resigned as director at NKGen Biotech, Inc..","evidence_excerpt":"On September 28, Mr. Michael Klowden, Mr. Sangwoo Park and Ms. Kathleen Scott notified the Board of Directors of NKGen Biotech, Inc. (the “Company”) of their intentions to resign as directors of the Company","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1845459/000121390024085116/0001213900-24-085116-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"resigned"},{"label":"Role","value":"director"}],"fact_type":"executive_change"},{"claim_id":"88629c9299","claim":"Kathleen Scott resigned as director at NKGen Biotech, Inc..","evidence_excerpt":"On September 28, Mr. Michael Klowden, Mr. Sangwoo Park and Ms. Kathleen Scott notified the Board of Directors of NKGen Biotech, Inc. (the “Company”) of their intentions to resign as directors of the Company","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1845459/000121390024085116/0001213900-24-085116-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"resigned"},{"label":"Role","value":"director"}],"fact_type":"executive_change"},{"claim_id":"dee2b6f201","claim":"Sangwoo Park resigned as director at NKGen Biotech, Inc..","evidence_excerpt":"On September 28, Mr. Michael Klowden, Mr. Sangwoo Park and Ms. Kathleen Scott notified the Board of Directors of NKGen Biotech, Inc. (the “Company”) of their intentions to resign as directors of the Company","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1845459/000121390024085116/0001213900-24-085116-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"resigned"},{"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"}