{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-26-158951","form_type":"8-K","ticker":"SNSE","cik":"0001829802","company_name":"Sensei Biotherapeutics, Inc.","filed_at":"2026-04-16T23:59:59+00:00","discovered_at":"2026-05-14T18:02:33.047329+00:00","generated_at":"2026-05-15T05:51:11.072261+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.9,"confidence":"high","headline":"Three Sensei directors to resign, new CEO & CFO conditional on stockholder approval","bullets":["Christopher Gerry, Thomas Ricks, Kristian Humer resigning conditionally effective after June 10, 2026 annual meeting, contingent on stockholder approval of Conversion and Charter Amendment Proposals.","Conditional appointments of Stephen Hahn, Saira Ramasastry, Karen Vousden as new directors effective at same time.","If proposals approved, Anand Parikh (current COO) will become CEO; Brian Stephenson will become CFO. Gerry remains General Counsel, Craver remains SVP Finance.","Board adopted Severance and Change in Control Plan covering Parikh, Gerry, Craver with cash severance up to 18 months base salary and COBRA.","Conversion Proposal involves issuance of >20% of common upon Series B preferred conversion, resulting in change of control."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-26-158951","json":"https://secwatch.observer/filing/0001193125-26-158951.json","markdown":"https://secwatch.observer/filing/0001193125-26-158951.md","text":"https://secwatch.observer/filing/0001193125-26-158951.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1829802/000119312526158951/0001193125-26-158951-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1829802/000119312526158951/d85136d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-15T05:51:11.072261+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":[],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}