{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-26-056135","form_type":"8-K","ticker":"SNSE","cik":"0001829802","company_name":"Sensei Biotherapeutics, Inc.","filed_at":"2026-02-18T23:59:59+00:00","discovered_at":"2026-05-14T18:02:36.419605+00:00","generated_at":"2026-05-16T02:09:20.571108+00:00","sec_items":["1.01","5.03","2.01","3.02","5.02","7.01","9.01"],"event_type":"m_and_a","sentiment":"neutral","materiality_score":1.0,"confidence":"high","headline":"Sensei Biotherapeutics closes merger with Faeth and $200M PIPE; existing holders diluted to ~4.9%","bullets":["Issued ~10,602 Series B Preferred shares (each convertible into 1,000 common) to acquire Faeth; pre-PIPE: Faeth holders ~89.3%, Sensei ~10.7%.","Sold 14,440 Series B Preferred shares in $200M PIPE; post-PIPE: PIPE investors ~54.3%, Faeth ~40.8%, Sensei ~4.9%.","Anand Parikh (ex-Faeth CEO) appointed as COO and director; granted 1,239,305 option inducement award vesting over 4 years.","Certificate of Designation filed; conversion of Series B requires stockholder approval and beneficial ownership limits of 4.99%-19.99%."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-26-056135","json":"https://secwatch.observer/filing/0001193125-26-056135.json","markdown":"https://secwatch.observer/filing/0001193125-26-056135.md","text":"https://secwatch.observer/filing/0001193125-26-056135.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1829802/000119312526056135/0001193125-26-056135-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1829802/000119312526056135/d112826d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-16T02:09:20.571108+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"}