{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-23-293003","form_type":"8-K","ticker":"ACLX","cik":"0001786205","company_name":"Arcellx, Inc.","filed_at":"2023-12-12T23:59:59+00:00","discovered_at":"2026-05-14T18:03:30.441429+00:00","generated_at":"2026-06-07T14:19:34.544700+00:00","sec_items":["8.01","9.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.3,"calibrated_materiality_score":0.3,"confidence":"low","headline":"Arcellx presents CART-ddBCMA Phase 1 expansion data at ASH; no specific results disclosed in 8-K","bullets":["Event at 65th ASH Annual Meeting on Dec 11, 2023 in San Diego highlighting CART-ddBCMA Phase 1 expansion trial.","Trial enrolled patients with relapsed/refractory multiple myeloma.","Filing does not include numerical efficacy or safety data from the presentation.","Corporate slides attached as Exhibit 99.1 but full data not reproduced in this filing."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-23-293003","json":"https://secwatch.observer/filing/0001193125-23-293003.json","markdown":"https://secwatch.observer/filing/0001193125-23-293003.md","text":"https://secwatch.observer/filing/0001193125-23-293003.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1786205/000119312523293003/0001193125-23-293003-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1786205/000119312523293003/d659269d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-07T14:19:34.544700+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"}