Matinas Biopharma Holdings IMTNB
13F holders, Q1 2026 (March 31)At the end of Q1 2026, 28 institutions reported holding Matinas Biopharma Holdings I (MTNB) in their 13F filings, down 2 from Q4 2025. 2 opened new positions and 5 sold out. The largest holders were Geode Capital Management, LLC ($33K), Citadel Advisors ($26K) and BlackRock, Inc. ($25K). 2 famous investors held it, including Ken Griffin (0.0% of Citadel Advisors's portfolio) and Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio).
- Company
- Matinas Biopharma Holdings I
- CUSIP
- 576810303
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 2 | $5 |
| Exits | 5 | $46K |
All 13F filers, Q4 2025 → Q1 2026: 13,006 shares bought and 101,129 shares sold, net −88,123 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 28 holders
| Geode Capital Management, LLC | 0.00% | Add +16.4% | 65,170 | $33K |
| Citadel Advisors | 0.00% | Reduce -21.4% | 51,698 | $26K |
| BlackRock, Inc. | 0.00% | No change | 49,650 | $25K |
| Vanguard Capital Management LLC | 0.00% | — | 40,110 | $20K |
| Holos Integrated Wealth LLC | 0.01% | No change | 32,480 | $16K |
| Renaissance Technologies | 0.00% | Reduce -1.4% | 28,570 | $14K |
| XTX Topco Ltd | 0.00% | Add +22.5% | 20,706 | $10K |
| Vanguard Fiduciary Trust Co. | 0.00% | — | 18,277 | $9K |
| State Street Corp. | 0.00% | No change | 15,322 | $8K |
| Susquehanna International Group, LLP | 0.00% | Reduce -32.1% | 14,328 | $7K |
| Sargent Investment Group, LLC | 0.00% | No change | 12,720 | $6K |
| Tower Research Capital LLC (TRC) | 0.00% | Reduce -0.3% | 2,853 | $1K |
| Vanguard Global Advisers, LLC | 0.00% | — | 1,338 | $669 |
| Morgan Stanley | 0.00% | Reduce -38.7% | 344 | $172 |
| Costello Asset Management, INC | 0.00% | No change | 200 | $100 |
| UBS Group AG | 0.00% | Reduce -69.7% | 184 | $92 |
| Wells Fargo & Company | 0.00% | No change | 102 | $51 |
| Jones Financial Companies LLLP | 0.00% | No change | 60 | $34 |
| Steward Partners Investment Advisory, LLC | 0.00% | No change | 61 | $31 |
| EverSource Wealth Advisors, LLC | 0.00% | No change | 60 | $30 |
| Osaic Holdings, Inc. | 0.00% | No change | 50 | $25 |
| Vision Financial Markets LLC | 0.00% | No change | 40 | $20 |
| Rothschild Investment LLC | 0.00% | No change | 14 | $7 |
| SBI Securities Co., Ltd. | 0.00% | No change | 11 | $6 |
| FMR LLC | 0.00% | New | 7 | $4 |
| Farther Finance Advisors, LLC | 0.00% | Reduce -98.8% | 5 | $3 |
| MAI Capital Management | 0.00% | No change | 2 | $1 |
| Bogart Wealth, LLC | 0.00% | New | 2 | $1 |
"% of holder's portfolio" is MTNB's weight in each manager's 13F, not the share of Matinas Biopharma Holdings I the manager owns.