{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-23-097389","form_type":"8-K","ticker":"ADPT","cik":"0001478320","company_name":"Adaptive Biotechnologies Corp","filed_at":"2023-04-11T23:59:59+00:00","discovered_at":"2026-05-14T18:03:38.991226+00:00","generated_at":"2026-06-17T03:36:14.698961+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.6,"calibrated_materiality_score":0.6,"confidence":"high","headline":"Adaptive Biotech COO Mark Adams terminated; duties absorbed by President Rubinstein","bullets":["Mark Adams, COO, was informed on April 7, 2023, that his service will be terminated by May 2023.","President Julie Rubinstein will assume the Chief Operating Officer's duties.","No replacement COO has been named; organizational impact remains unclear.","Chad Robins continues as CEO; leadership transition underway."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-23-097389","json":"https://secwatch.observer/filing/0001193125-23-097389.json","markdown":"https://secwatch.observer/filing/0001193125-23-097389.md","text":"https://secwatch.observer/filing/0001193125-23-097389.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1478320/000119312523097389/0001193125-23-097389-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1478320/000119312523097389/d497018d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-17T03:36:14.698961+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":"3df32dc439","claim":"Mark Adams was terminated as Chief Operating Officer at Adaptive Biotechnologies Corp.","evidence_excerpt":"On April 7, 2023, Mark Adams, Chief Operating Officer of Adaptive Biotechnologies Corporation (the “Company”), was informed that his service is being terminated by May 2023.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1478320/000119312523097389/0001193125-23-097389-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"terminated"},{"label":"Role","value":"Chief Operating Officer"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}