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MTNB · AMEX · Biotechnology

Matinas BioPharma (MTNB)

Developer of lipid nanocrystal delivery technology for oral antifungal treatment.

$0.2047
Pre-market+0.02 (+7.91%)
At close$0.1897(−4.05%)
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Breakdown13F · 13D/G · Form 4

Institutions28 holders · as of Mar 31, 20262.41%354.4K shares
Insiders1 holder · as of Aug 13, 20267.90%1.16M shares
Strategic holders1 holder · as of Jul 14, 20268.89%1.31M shares
Otherremainder80.80%11.87M shares

14.69M company shares as of Sep 3, 2026 · institutions as of Mar 31, 2026 · holders as of their latest filing

Two share counts disagree (14.69M in the company's Sep 3, 2026 report, 6.41M elsewhere); stakes use the report.

Top shareholders13F · 13D/G · Form 4

HolderStakeSharesEvidence
Hezbay Holdings LLCStrategic
8.89%1.31M13Gfiled Jul 14, 2026 ↗
Adam K. SternInsider10 percent owner
7.90%1.16MForm 4filed Aug 13, 2026 ↗
Geode Capital Management, LLCInstitution
0.44%65,17013Fas of Mar 31, 2026
Citadel Advisors LLCInstitution
0.35%51,69813Fas of Mar 31, 2026
BlackRock, Inc.Institution
0.34%49,65013Fas of Mar 31, 2026
Vanguard Capital Management LLCInstitution
0.27%40,11013Fas of Mar 31, 2026
Holos Integrated Wealth LLCInstitution
0.22%32,48013Fas of Mar 31, 2026
Renaissance Technologies LLCInstitution
0.19%28,57013Fas of Mar 31, 2026
XTX Topco LtdInstitution
0.14%20,70613Fas of Mar 31, 2026
Vanguard Fiduciary Trust CoInstitution
0.12%18,27713Fas of Mar 31, 2026
State Street CorpInstitution
0.10%15,32213Fas of Mar 31, 2026
Susquehanna International Group, LLPInstitution
0.10%14,32813Fas of Mar 31, 2026
Sargent Investment Group, LLCInstitution
0.09%12,72013Fas of Mar 31, 2026
Tower Research Capital LLC (TRC)Institution
0.02%2,85313Fas of Mar 31, 2026
Vanguard Global Advisers, LLCInstitution
0.01%1,33813Fas of Mar 31, 2026
Morgan StanleyInstitution
0.00%34413Fas of Mar 31, 2026
Costello Asset Management, IncInstitution
0.00%20013Fas of Mar 31, 2026
UBS Group AGInstitution
0.00%18413Fas of Mar 31, 2026
Wells Fargo & Company/MNInstitution
0.00%10213Fas of Mar 31, 2026
Steward Partners Investment Advisory, LLCInstitution
0.00%6113Fas of Mar 31, 2026
Eversource Wealth Advisors, LLCInstitution
0.00%6013Fas of Mar 31, 2026
Jones Financial Companies LLLPInstitution
0.00%6013Fas of Mar 31, 2026
Advisor Group Holdings, Inc.Institution
0.00%5013Fas of Mar 31, 2026
Vision Financial Markets LLCInstitution
0.00%4013Fas of Mar 31, 2026
Rothschild Investment LLCInstitution
0.00%1413Fas of Mar 31, 2026

13F — a manager's quarterly holdings · 13D/13G — an ownership statement filed at 5% or more · Form 4 — an insider's transaction report

Institutions13F, as of Mar 31, 2026

28 holders · 354.4K shares · 5 new positions · 7 increased · 7 reduced · 6 closed

HolderShares% outstandingChg q/qFiled
Geode Capital Management, LLC65.2K0.44%+9.2KMay 15, 2026
Citadel Advisors LLC51.7K0.35%−14.0KMay 15, 2026
BlackRock, Inc.49.7K0.34%0May 13, 2026
Vanguard Capital Management LLC40.1K0.27%+40.1KnewMay 15, 2026
Holos Integrated Wealth LLC32.5K0.22%0Apr 8, 2026
Renaissance Technologies LLC28.6K0.19%−400May 14, 2026
XTX Topco Ltd20.7K0.14%+3.8KMay 15, 2026
Vanguard Fiduciary Trust Co18.3K0.12%+18.3KnewMay 8, 2026

Ownership statements13D/G · 5% or more, as filed

Holder% of classSharesFormFiled
Stern Adam Kincl. Sanitam Partners LLC9.99%2.97M13DAug 13, 2026 ↗
Robert J. Eideincl. Pembroke & Partners LLC9.99%13DApr 10, 2025 ↗
Highbridge Capital Management, LLC9.99%595.6K13GOct 25, 2024 ↗
Lazar David E.9.81%545.0K13GAug 19, 2025 ↗
Hezbay Holdings LLC9.54%1.31M13GJul 14, 2026 ↗

Insider tradesForm 4

Latest trades

No open-market trades in the last 12 months.

CongressHouse and Senate disclosures

Not reported.