{"schema_version":"secwatch.filing_event.v1","accession":"0000950170-21-005307","form_type":"8-K","ticker":"CMPX","cik":"0001738021","company_name":"Compass Therapeutics, Inc.","filed_at":"2021-12-21T23:59:59+00:00","discovered_at":"2026-05-14T18:04:13.894340+00:00","generated_at":"2026-06-27T23:22:46.457954+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.3,"calibrated_materiality_score":0.3,"confidence":"high","headline":"Director Julie Sunderland resigns from Compass Therapeutics Board","bullets":["Julie Sunderland notified the Board of her resignation effective December 31, 2021.","Resignation from the Board and all committees; not due to any disagreement with the company.","She was an early venture investor and is departing for other professional endeavors."],"urls":{"canonical":"https://secwatch.observer/filing/0000950170-21-005307","json":"https://secwatch.observer/filing/0000950170-21-005307.json","markdown":"https://secwatch.observer/filing/0000950170-21-005307.md","text":"https://secwatch.observer/filing/0000950170-21-005307.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1738021/000095017021005307/0000950170-21-005307-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1738021/000095017021005307/cmpx-20211220.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-27T23:22:46.457954+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":"6407b58b3a","claim":"Julie Sunderland resigned as Director at Compass Therapeutics, Inc..","evidence_excerpt":"On December 20, 2021, Julie Sunderland, a member of the Board of Directors (the “Board”) of Compass Therapeutics, Inc. (the “Company”), notified the Company of her resignation from the Board and all committees thereof, effective December 31, 2021.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1738021/000095017021005307/0000950170-21-005307-index.htm","confidence":1.0,"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"}