Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in MTNB held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | GEODE CAPITAL MANAGEMENT, LLC | 65K | $33K | +16.4% | 1.104% | 0.00% |
| 2 | CITADEL ADVISORS LLC | 52K | $26K | -21.3% | 0.876% | 0.00% |
| 3 | BlackRock, Inc. | 50K | $25K | 0.0% | 0.841% | 0.00% |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | 40K | $20K | — | 0.680% | 0.00% |
| 5 | Holos Integrated Wealth LLC | 32K | $16K | 0.0% | 0.550% | 0.01% |
| 6 | RENAISSANCE TECHNOLOGIES LLC | 29K | $14K | -1.4% | 0.484% | 0.00% |
| 7 | XTX Topco Ltd | 21K | $10K | +22.5% | 0.351% | 0.00% |
| 8 | VANGUARD FIDUCIARY TRUST CO | 18K | $9K | — | 0.310% | 0.00% |
| 9 | STATE STREET CORP | 15K | $8K | 0.0% | 0.260% | 0.00% |
| 10 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 14K | $7K | -32.1% | 0.243% | 0.00% |
| 11 | Sargent Investment Group, LLC | 13K | $6K | 0.0% | 0.216% | 0.00% |
| 12 | Tower Research Capital LLC (TRC) | 3K | $1K | -0.3% | 0.048% | 0.00% |
| 13 | EverSource Wealth Advisors, LLC | 85 | $927 | +41.7% | 0.001% | 0.00% |
| 14 | Vanguard Global Advisers, LLC | 1K | $669 | — | 0.023% | 0.00% |
| 15 | MORGAN STANLEY | 344 | $172 | -38.7% | 0.006% | 0.00% |
| 16 | Costello Asset Management, INC | 200 | $100 | 0.0% | 0.003% | 0.00% |
| 17 | UBS Group AG | 184 | $92 | -69.7% | 0.003% | 0.00% |
| 18 | WELLS FARGO & COMPANY/MN | 102 | $51 | 0.0% | 0.002% | 0.00% |
| 19 | JONES FINANCIAL COMPANIES LLLP | 60 | $34 | 0.0% | 0.001% | 0.00% |
| 20 | Steward Partners Investment Advisory, LLC | 61 | $31 | 0.0% | 0.001% | 0.00% |
| 21 | ADVISOR GROUP HOLDINGS, INC. | 50 | $25 | 0.0% | 0.001% | 0.00% |
| 22 | VISION FINANCIAL MARKETS LLC | 40 | $20 | 0.0% | 0.001% | 0.00% |
| 23 | ROTHSCHILD INVESTMENT LLC | 14 | $7 | 0.0% | 0.000% | 0.00% |
| 24 | SBI Securities Co., Ltd. | 11 | $6 | 0.0% | 0.000% | 0.00% |
| 25 | FMR LLC | 7 | $4 | — | 0.000% | 0.00% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). “% of Fund” shows how much of that investor’s total 13F portfolio is invested in MTNB — a direct measure of their conviction.
Filings activity in MTNB during Q1 2026, grouped by how each filer changed its position.
8 quarters of 13F filings · Δ columns show change vs prior quarter
| Quarter | Inst. Holders | Δ Holders | Ownership % | Δ Ownership | Total 13F Value | Δ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 28 | 3.4% | 3.87% | 1.77 pp | $0M | 31% |
| Q4 2025 | 29 | +7.4% | 5.64% | 6.14 pp | $0M | 52% |
| Q3 2025 | 27 | +3.8% | 11.78% | +6.26 pp | $1M | +113% |
| Q2 2025 | 26 | +4.0% | 5.52% | +2.27 pp | $0M | +70% |
| Q1 2025 | 25 | +14% | 3.25% | 0.62 pp | $0M | 16% |
| Q4 2024 | 22 | +16% | 3.87% | 37.43 pp | $0M | 91% |
| Q3 2024 | 19 | 60% | 41.30% | 85.41 pp | $2M | 67% |
| Q2 2024 | 48 | — | 126.71% | — | $6M | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying MTNB stock.
Based on Q1 2026 13F filings, institutional ownership of Matinas BioPharma Holdings, Inc. stands at 3.9%, held across 28 reporting institutions.
GEODE CAPITAL MANAGEMENT, LLC is the largest reported institutional holder of MTNB, with approximately 65,170 shares worth $0.00B as of Q1 2026.
Yes — 3 widely-followed marquee investors appear among the top 25 institutional holders of MTNB, including CITADEL ADVISORS LLC, RENAISSANCE TECHNOLOGIES LLC, SUSQUEHANNA INTERNATIONAL GROUP, LLP.
Our composite Smart Money Score for MTNB is 46 out of 100 (Neutral). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
5 institutions opened new positions in MTNB during Q1 2026, while 6 fully exited. 2 added to existing positions and 20 trimmed.
MTNB institutional ownership fell by 1.77 percentage points quarter-over-quarter, with a net change of -1 holders.
The top 10 institutions account for 94.4% of all reported 13F value in MTNB, and the top 25 account for 100.0%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
Matinas BioPharma Holdings, Inc. (MTNB) Institutional Ownership