{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-24-084748","form_type":"8-K","ticker":"ADPT","cik":"0001478320","company_name":"Adaptive Biotechnologies Corp","filed_at":"2024-04-02T23:59:59+00:00","discovered_at":"2026-05-14T18:03:18.594741+00:00","generated_at":"2026-06-04T03:28:20.361744+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.55,"calibrated_materiality_score":0.55,"confidence":"high","headline":"CFO Tycho Peterson resigns; Kyle Piskel named CFO effective April 8","bullets":["Tycho Peterson resigned as CFO effective April 5, 2024; resignation voluntary with no disagreement.","Kyle Piskel, current Principal Accounting Officer and 8-year veteran, appointed CFO starting April 8, 2024.","No other leadership changes or compensatory arrangements disclosed."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-24-084748","json":"https://secwatch.observer/filing/0001193125-24-084748.json","markdown":"https://secwatch.observer/filing/0001193125-24-084748.md","text":"https://secwatch.observer/filing/0001193125-24-084748.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1478320/000119312524084748/0001193125-24-084748-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1478320/000119312524084748/d821049d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-04T03:28:20.361744+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":"780873a626","claim":"Kyle Piskel was appointed as Chief Financial Officer at Adaptive Biotechnologies Corp.","evidence_excerpt":"Kyle Piskel, who has been with Company for 8 years and is currently its Principal Accounting Officer will serve as the Chief Financial Officer starting on April 8, 2024.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1478320/000119312524084748/0001193125-24-084748-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"Chief Financial Officer"}],"fact_type":"executive_change"},{"claim_id":"dfb38118cb","claim":"Tycho Peterson resigned as Chief Financial Officer at Adaptive Biotechnologies Corp.","evidence_excerpt":"On April 1, 2024, the Chief Financial Officer of Adaptive Biotechnologies Corporation (the “ Company ”) Tycho Peterson submitted his resignation.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1478320/000119312524084748/0001193125-24-084748-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"resigned"},{"label":"Role","value":"Chief Financial Officer"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}