{"schema_version":"secwatch.filing_event.v1","accession":"0001493152-24-033263","form_type":"8-K","ticker":"MTNB","cik":"0001582554","company_name":"Matinas BioPharma Holdings, Inc.","filed_at":"2024-08-20T23:59:59+00:00","discovered_at":"2026-05-14T18:03:13.633508+00:00","generated_at":"2026-05-31T08:27:44.829576+00:00","sec_items":["8.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.65,"calibrated_materiality_score":0.65,"confidence":"high","headline":"Matinas BioPharma announces 1-for-50 reverse stock split effective Aug 30, 2024","bullets":["Board approved 1-for-50 reverse stock split and reduction of authorized shares from 500M to 250M.","Effective at 5:00 PM EST on Aug 30, 2024; split-adjusted trading under symbol MTNB begins Sep 3.","Fractional shares rounded up to nearest whole share; no cash paid for fractions.","Company believes split will help maintain NYSE American listing; may pursue Nasdaq uplisting later."],"urls":{"canonical":"https://secwatch.observer/filing/0001493152-24-033263","json":"https://secwatch.observer/filing/0001493152-24-033263.json","markdown":"https://secwatch.observer/filing/0001493152-24-033263.md","text":"https://secwatch.observer/filing/0001493152-24-033263.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1582554/000149315224033263/0001493152-24-033263-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1582554/000149315224033263/form8-k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-31T08:27:44.829576+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"}