{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-22-032077","form_type":"8-K","ticker":"ACLX","cik":"0001786205","company_name":"Arcellx, Inc.","filed_at":"2022-02-09T23:59:59+00:00","discovered_at":"2026-05-14T18:04:08.205273+00:00","generated_at":"2026-06-27T09:39:22.442681+00:00","sec_items":["5.03","7.01","9.01"],"event_type":"other_material","sentiment":"positive","materiality_score":0.7,"calibrated_materiality_score":0.7,"confidence":"high","headline":"Arcellx closes IPO of 9.49M shares at $15/sh, gross proceeds $142.3M","bullets":["IPO closed with 9,487,500 shares, including full exercise of underwriters' option for 1,237,500 shares.","Gross proceeds of $142.3 million before underwriting discounts and offering expenses.","Common stock began trading on Nasdaq on February 4, 2022 under ticker ACLX.","Joint book-running managers: BofA Securities, SVB Leerink, Barclays, William Blair.","Registration statement became effective on February 3, 2022."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-22-032077","json":"https://secwatch.observer/filing/0001193125-22-032077.json","markdown":"https://secwatch.observer/filing/0001193125-22-032077.md","text":"https://secwatch.observer/filing/0001193125-22-032077.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1786205/000119312522032077/0001193125-22-032077-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1786205/000119312522032077/d303972d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-27T09:39:22.442681+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"}