{"schema_version":"secwatch.filing_event.v1","accession":"0001493152-21-023087","form_type":"8-K","ticker":"MTNB","cik":"0001582554","company_name":"Matinas BioPharma Holdings, Inc.","filed_at":"2021-09-20T23:59:59+00:00","discovered_at":"2026-05-14T18:04:18.674173+00:00","generated_at":"2026-06-29T02:39:09.703418+00:00","sec_items":["5.02","7.01","8.01","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.4,"calibrated_materiality_score":0.4,"confidence":"high","headline":"Matinas BioPharma nominates Kathryn Penkus Corzo to board; LePore not standing for re-election","bullets":["Patrick LePore will not stand for re-election at the 2021 Annual Meeting on November 1, 2021.","Kathryn Penkus Corzo nominated to stand for election to the Board at the same meeting.","Corzo is a partner at Takeda Ventures and formerly Head of Oncology Cell Therapy Development at Takeda.","LePore served as Vice Chairman and was thanked for his three years of service."],"urls":{"canonical":"https://secwatch.observer/filing/0001493152-21-023087","json":"https://secwatch.observer/filing/0001493152-21-023087.json","markdown":"https://secwatch.observer/filing/0001493152-21-023087.md","text":"https://secwatch.observer/filing/0001493152-21-023087.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1582554/000149315221023087/0001493152-21-023087-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1582554/000149315221023087/form8-k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-29T02:39:09.703418+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":"ae075e1ea2","claim":"Patrick LePore resigned as Director at Matinas BioPharma Holdings, Inc..","evidence_excerpt":"On September 17, 2021, director Patrick LePore informed the Board of Directors (the “Board”) of Matinas BioPharma Holdings, Inc. (the “Company”) that he will not stand for re-election to the Board at the upcoming annual meeting of stockholders, which will be held on November 1, 2021 (the “Annual Meeting”).","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1582554/000149315221023087/0001493152-21-023087-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"resigned"},{"label":"Role","value":"Director"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}