{"schema_version":"secwatch.filing_event.v1","accession":"0001493152-25-001782","form_type":"8-K","ticker":"MTNB","cik":"0001582554","company_name":"Matinas BioPharma Holdings, Inc.","filed_at":"2025-01-10T23:59:59+00:00","discovered_at":"2026-05-14T18:03:04.072047+00:00","generated_at":"2026-05-28T04:58:57.631586+00:00","sec_items":["3.01","9.01"],"event_type":"regulatory","sentiment":"negative","materiality_score":0.65,"calibrated_materiality_score":0.65,"confidence":"high","headline":"Matinas BioPharma receives NYSE American notice for failure to hold 2024 annual meeting","bullets":["On January 6, 2025, Matinas received NYSE American notice for failing to hold 2024 annual meeting, violating Section 704.","Company plans to hold annual meeting no later than December 31, 2025 to cure deficiency.","Common stock continues trading on NYSE American with '.BC' indicator during cure period.","Risks disclosed include sale of MAT 2203 and evaluation of alternatives including winddown or dissolution."],"urls":{"canonical":"https://secwatch.observer/filing/0001493152-25-001782","json":"https://secwatch.observer/filing/0001493152-25-001782.json","markdown":"https://secwatch.observer/filing/0001493152-25-001782.md","text":"https://secwatch.observer/filing/0001493152-25-001782.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1582554/000149315225001782/0001493152-25-001782-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1582554/000149315225001782/form8-k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-28T04:58:57.631586+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":"f4dd22d222d6e179effd27e56586f12bbd2b3b6a","claim":"Matinas BioPharma Holdings, Inc. received a nyse_american deficiency notice notice regarding other.","evidence_excerpt":"January 6, 2025, Matinas BioPharma Holdings, Inc. (the “Company”) received a deficiency letter (the “Notice”) from the NYSE American LLC (“NYSE American”) stating that the Company failed to hold an annual meeting of stoc","evidence_source":"SEC 8-K Item 3.01","evidence_url":"https://www.sec.gov/Archives/edgar/data/1582554/000149315225001782/0001493152-25-001782-index.htm","confidence":0.9,"family_label":"Listing & Compliance Notices","details":[{"label":"Exchange","value":"nyse american"},{"label":"Notice","value":"deficiency notice"}],"fact_type":"exchange_compliance_notice"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}