{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-24-238117","form_type":"8-K","ticker":null,"cik":"0001656634","company_name":"Gritstone bio, Inc.","filed_at":"2024-10-16T23:59:59+00:00","discovered_at":"2026-05-14T18:03:09.127131+00:00","generated_at":"2026-05-30T13:45:14.836691+00:00","sec_items":["2.05","3.01"],"event_type":"other_material","sentiment":"negative","materiality_score":1.0,"calibrated_materiality_score":1.0,"confidence":"high","headline":"Gritstone bio files Chapter 11, cuts 19% of workforce, receives Nasdaq delisting notice","bullets":["Filed voluntary Chapter 11 petition on Oct 10, 2024 in Delaware bankruptcy court.","Announced termination of ~25 employees (19% reduction) effective Nov 15, with 30-day severance.","Expects one-time charge of ~$0.3M in Q4 2024 primarily for severance payments.","Nasdaq notified company of delisting due to Chapter 11; trading suspended Oct 22, 2024.","Company will not appeal Nasdaq's delisting determination."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-24-238117","json":"https://secwatch.observer/filing/0001193125-24-238117.json","markdown":"https://secwatch.observer/filing/0001193125-24-238117.md","text":"https://secwatch.observer/filing/0001193125-24-238117.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1656634/000119312524238117/0001193125-24-238117-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1656634/000119312524238117/d773987d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-30T13:45:14.836691+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":"f8e82658260e9c0b3849fc1fcc6c79d250b22dde","claim":"Gritstone bio, Inc. announced a restructuring with charges of approximately $0.3 million (approximately 25 employees).","evidence_excerpt":"and salary, all earned but unused paid time off, and a severance payment that is equal to 30 days of employment. The Company expects to record a one-time charge of approximately $0.3 million related to the reduction in its workforce, consistent primarily of one-time severance payments upon termination of the employees. The Company expects that the majority of these","evidence_source":"SEC 8-K Item 2.05/2.06","evidence_url":"https://www.sec.gov/Archives/edgar/data/1656634/000119312524238117/0001193125-24-238117-index.htm","confidence":0.9,"family_label":"Restructurings & Charges","details":[{"label":"Type","value":"restructuring"},{"label":"Charge","value":"approximately $0.3 million"},{"label":"Headcount","value":"approximately 25 employees"}],"fact_type":"restructuring_charge"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}