🕵️ Matinas Biopharma Holdings, Inc. ($MTNB)
SEC insider & ownership activity, last 12 months · CIK 1582554 · every row links its SEC filing
Insiders were quiet over the last 12 months – no open-market buys or sells. Sanitam Partners LLC trimmed 20.0% → 10.0%; Adam K. Stern trimmed 24.1% → 10.0%. 2 red-flag 8-Ks in the window, most recently Delisting notice (3.01), Jun 24, 2026.
Insider flow
0 buyers, $0 (0 lots) · 0 sellers, $0 (0 lots)
No open-market insider transactions in the last 12 months.
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| Brian Freifeld | 10.0% | 13D | Apr 8, 2025 | filing ↗ | |
| Sanitam Partners LLC | 10.0% | 13D | Apr 8, 2025 | filing ↗ | |
| Adam K. Stern | 10.0% | 13D | Apr 8, 2025 | filing ↗ | |
| Platinum Point Capital, LLC | 10.0% | 13D | Apr 8, 2025 | filing ↗ | |
| Robert J. Eide | 10.0% | 13D | Apr 8, 2025 | filing ↗ | |
| Pembroke & Partners LLC | 10.0% | 13D | Apr 8, 2025 | filing ↗ | |
| David E. Lazar | 9.8% | 13G | Aug 19, 2025 | filing ↗ | |
| Hezbay Holdings LLC | 9.5% | 13G | Jul 14, 2026 | filing ↗ |
Planned insider sales (Form 144)
No sale notices filed in the last 12 months.
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Agreement terminated (1.02) | Jul 23, 2026 | filing ↗ |
| Material agreement (1.01) | Jul 10, 2026 | filing ↗ |
| Unregistered equity sale (3.02) | Jul 10, 2026 | filing ↗ |
| Material Modifications to Rights of Security Holders (3.03) | Jul 10, 2026 | filing ↗ |
| Change of control (5.01) | Jul 10, 2026 | filing ↗ |
| Officer/director changes (5.02) | Jul 10, 2026 | filing ↗ |
| Charter/bylaw changes (5.03) | Jul 10, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Jul 10, 2026 | filing ↗ |
| Other events (8.01) | Jul 10, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jul 10, 2026 | filing ↗ |
| Delisting notice (3.01) | Jun 24, 2026 | filing ↗ |
| Other events (8.01) | Jun 24, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jun 24, 2026 | filing ↗ |
| Delisting notice (3.01) | Apr 2, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 2, 2026 | filing ↗ |
| Officer/director changes (5.02) | Jan 22, 2026 | filing ↗ |
| Officer/director changes (5.02) | Dec 12, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Dec 12, 2025 | filing ↗ |
| Officer/director changes (5.02) | Nov 18, 2025 | filing ↗ |
| Material agreement (1.01) | Aug 15, 2025 | filing ↗ |
| Unregistered equity sale (3.02) | Aug 15, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 15, 2025 | filing ↗ |
| Charter/bylaw changes (5.03) | Aug 6, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 6, 2025 | filing ↗ |