{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-22-070592","form_type":"8-K","ticker":"SNSE","cik":"0001829802","company_name":"Sensei Biotherapeutics, Inc.","filed_at":"2022-03-09T23:59:59+00:00","discovered_at":"2026-05-14T18:04:08.628515+00:00","generated_at":"2026-06-27T00:30:02.294601+00:00","sec_items":["5.02","7.01","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.5,"calibrated_materiality_score":0.5,"confidence":"high","headline":"Sensei Biotherapeutics appoints William Ringo as Chair of Board","bullets":["William Ringo appointed Chair of the Board effective March 8, 2022; also joins compensation and nominating committees.","Mr. Ringo brings 40+ years of pharma/biotech experience including Pfizer SVP, Eli Lilly executive roles, and CEO of Abgenix.","Received an option to purchase 29,100 shares and RSU awards totaling 18,933 shares; annual retainers of $79,000.","Press release announcing appointment issued March 9, 2022."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-22-070592","json":"https://secwatch.observer/filing/0001193125-22-070592.json","markdown":"https://secwatch.observer/filing/0001193125-22-070592.md","text":"https://secwatch.observer/filing/0001193125-22-070592.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1829802/000119312522070592/0001193125-22-070592-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1829802/000119312522070592/d280713d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-27T00:30:02.294601+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":"716994a31d","claim":"William Ringo was appointed as Chair of the Board at Sensei Biotherapeutics, Inc..","evidence_excerpt":"Effective March 8, 2022, the board of directors (the “Board”) of Sensei Biotherapeutics, Inc. (the “Company”) appointed William Ringo to serve as Chair of the Board of the Company and as a member of the Company’s compensation committee and nominating and corporate governance committee.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1829802/000119312522070592/0001193125-22-070592-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"Chair of the Board"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}