{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-24-118498","form_type":"8-K","ticker":"IOBTQ","cik":"0001865494","company_name":"IO Biotech, Inc.","filed_at":"2024-04-26T23:59:59+00:00","discovered_at":"2026-05-14T18:03:20.972934+00:00","generated_at":"2026-06-03T06:42:43.790836+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.3,"calibrated_materiality_score":0.3,"confidence":"high","headline":"IO Biotech director Jack Nielsen resigns for health reasons effective April 24","bullets":["Jack Nielsen resigned from the Board of Directors on April 24, 2024.","Resignation due to health reasons, not any disagreement with the Company or Board.","No replacement named; Board size reduced accordingly."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-24-118498","json":"https://secwatch.observer/filing/0001193125-24-118498.json","markdown":"https://secwatch.observer/filing/0001193125-24-118498.md","text":"https://secwatch.observer/filing/0001193125-24-118498.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1865494/000119312524118498/0001193125-24-118498-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1865494/000119312524118498/d813423d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-03T06:42:43.790836+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":"347f13ad8a","claim":"Jack Nielsen resigned as Member of the Board of Directors at IO Biotech, Inc..","evidence_excerpt":"On April 24, 2024, Jack Nielsen, a member of the board of directors (the “Board”) of IO Biotech, Inc. (the “Company”), notified the Company of his resignation from the Board, effective that same date.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1865494/000119312524118498/0001193125-24-118498-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"resigned"},{"label":"Role","value":"Member of the Board of Directors"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}