{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-22-018422","form_type":"8-K","ticker":"ATRA","cik":"0001604464","company_name":"Atara Biotherapeutics, Inc.","filed_at":"2022-01-26T23:59:59+00:00","discovered_at":"2026-05-14T18:04:07.326338+00:00","generated_at":"2026-06-27T15:27:07.890769+00:00","sec_items":["1.01","2.02","5.02","9.01"],"event_type":"m_and_a","sentiment":"neutral","materiality_score":0.75,"calibrated_materiality_score":0.75,"confidence":"high","headline":"Atara sells cell therapy manufacturing facility to Fujifilm for $100M; preliminary cash $371.1M","bullets":["Fujifilm to acquire ATOM facility for $100M upfront; closing expected April 2022.","Preliminary cash, equivalents & short-term investments of $371.1M as of Dec 31, 2021.","Transaction plus existing cash expected to fund planned operations into Q4 2023.","COO Joseph Newell transitions to consultant effective Jan 31, 2022; receives severance of 12 months' salary.","Parties enter long-term supply agreement (up to 10 years) for clinical/commercial manufacturing."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-22-018422","json":"https://secwatch.observer/filing/0001193125-22-018422.json","markdown":"https://secwatch.observer/filing/0001193125-22-018422.md","text":"https://secwatch.observer/filing/0001193125-22-018422.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1604464/000119312522018422/0001193125-22-018422-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1604464/000119312522018422/d607690d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-27T15:27:07.890769+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":"ec1641997f","claim":"Joseph Newell changed role as Executive Vice President and Chief Operations Officer at Atara Biotherapeutics, Inc..","evidence_excerpt":"In connection with the entry into the Asset Purchase Agreement and effective as of January 31, 2022, Joseph Newell, the Company’s Executive Vice President and Chief Operations Officer, will transition from being an employee of the Company and become a consultant.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1604464/000119312522018422/0001193125-22-018422-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"transitioned"},{"label":"Role","value":"Executive Vice President and Chief Operations Officer"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}