MATINAS BIOPHARMA HOLDINGS I (MTNB) Institutional Shareholders
MATINAS BIOPHARMA HOLDINGS I (MTNB) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $199,183 in MTNB holdings during the latest filing period.
Renaissance Technologies LLC is currently the largest disclosed institutional shareholder of MTNB tracked by InsiderSet, reporting ownership valued at approximately $43,476 in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $11,366.4, representing an estimated loss of -73.86% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 98% of the total disclosed MTNB value among the investors covered in this analysis. Major shareholders include Renaissance Technologies LLC, Blackrock, Inc., Geode Capital Management, Llc, and several other long-term asset managers with concentrated positions in MATINAS BIOPHARMA HOLDINGS I (MTNB).
This page ranks the largest institutional MTNB shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
23
Total Reported Value
$199,183
Largest Holder
Renaissance Technologies LLC
Largest Position
$43,476
Insider Transactions (90d)
4
Latest Filing Quarter
Q2 2026
New Institutional Positions
33
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Renaissance Technologies LLC | Jim Simons | 0.00% | 71,040 | $43,476 | $11,366 | -$32,110 | -73.86% |
| Blackrock, Inc. | 0.00% | 50,262 | $30,761 | $8,042 | -$22,719 | -73.86% | |
| Geode Capital Management, Llc | 0.00% | 49,135 | $30,077 | $7,862 | -$22,215 | -73.86% | |
| Vanguard Capital Management Llc | 0.00% | 40,110 | $24,547 | $6,418 | -$18,129 | -73.86% | |
| Holos Integrated Wealth Llc | 0.01% | 32,480 | $20,167 | $5,197 | -$14,970 | -74.23% | |
| Vanguard Fiduciary Trust Co | 0.00% | 17,316 | $10,597 | $2,771 | -$7,826 | -73.86% | |
| Susquehanna International Group, Llp | 0.00% | 16,093 | $9,849 | $2,575 | -$7,274 | -73.86% | |
| Citadel Advisors Llc | 0.00% | 15,465 | $9,465 | $2,474 | -$6,991 | -73.86% | |
| State Street Corp | 0.00% | 15,322 | $9,377 | $2,452 | -$6,925 | -73.86% | |
| Sargent Investment Group, Llc | 0.00% | 12,720 | $7,785 | $2,035 | -$5,750 | -73.86% | |
| Tower Research Capital Llc (Trc) | 0.00% | 2,853 | $1,746 | $456 | -$1,290 | -73.86% | |
| Vanguard Global Advisers, Llc | 0.00% | 1,338 | $819 | $214 | -$605 | -73.86% | |
| Morgan Stanley | 0.00% | 344 | $211 | $55 | -$156 | -73.91% | |
| Costello Asset Management, Inc | 0.00% | 200 | $122 | $32 | -$90 | -73.77% | |
| Wells Fargo & Company/Mn | 0.00% | 102 | $62 | $16 | -$46 | -73.68% | |
| Jones Financial Companies Lllp | 0.00% | 60 | $39 | $10 | -$29 | -75.38% | |
| Osaic Holdings, Inc. | 0.00% | 52 | $31 | $8 | -$23 | -73.16% | |
| Vision Financial Markets Llc | 0.00% | 40 | $26 | $6 | -$20 | -75.38% | |
| Rothschild Investment Llc | 0.00% | 14 | $9 | $2 | -$7 | -75.11% | |
| Sbi Securities Co., Ltd. | 0.00% | 12 | $7 | $2 | -$5 | -72.57% | |
| Ifg Advisory, Llc | 0.00% | 10 | $6 | $2 | -$4 | -73.33% | |
| Farther Finance Advisors, Llc | 0.00% | 5 | $3 | $1 | -$2 | -73.33% | |
| Bogart Wealth, Llc | 0.00% | 2 | $1 | $0 | -$1 | -68.00% |
Frequently asked questions about MTNB
Who are the largest institutional holders of MTNB?
The largest institutional holders of MTNB reported in the latest SEC Form 13F filings include Renaissance Technologies LLC, Blackrock, Inc., Geode Capital Management, Llc, Vanguard Capital Management Llc, and Holos Integrated Wealth Llc. InsiderSet ranks institutional holders by their latest reported MTNB position.
What is MTNB institutional ownership?
This page tracks MTNB positions reported by institutional investment managers through SEC Form 13F. MATINAS BIOPHARMA HOLDINGS I (MTNB) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own MTNB?
InsiderSet currently tracks 23 institutional managers reporting MTNB holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of MTNB shareholders.
How much MTNB stock do institutions own?
Institutional investment managers disclosed approximately $199,183 in MTNB holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was MTNB institutional ownership last updated?
The latest MTNB institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional MTNB holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its MTNB position after the reporting date.
Are institutions buying or selling MTNB?
Institutional buying and selling can be analyzed by comparing MTNB positions across consecutive 13F reporting periods. InsiderSet's MTNB Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View MTNB ownership changes.
How has MTNB institutional ownership changed over time?
InsiderSet tracks MTNB institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.