MTNB · Matinas BioPharma Holdings, Inc. · Shareholders & Ownership
$1.70
-0.01 (-0.55%)
At close · Oct 23
Return incl. dividend (before tax)
Going-concern doubt
— flagged Aug 13, 2026
Substantial doubt about the company's ability to continue as a going concern.
“The Company does not believe that the cash and cash equivalents on hand are sufficient to fund planned operations for a period of at least twelve months from the filing date of these financial statements. As a result, substantial doubt exists about the Company's ability to continue as a going concern.”View the 10-Q filed Aug 13, 2026
Market Cap
$1.67M
Shares
979,520
Volume · Oct 23
11.29K
Avg daily vol (20 sessions)
144.48K
Every disclosed holder of MTNB in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.
Who Owns MTNB
13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positions| Holder group | Shares | % Out |
|---|---|---|
| Institutional (13F) | 21,667 | 2.21% |
| Insiders (Forms 3, 4, 5) | 82,197 | 8.39% |
| 13D/G-only blocks | 135,675 | 13.85% |
| Remaining | 739,981 | 75.55% |
| Registered funds (N-PORT, not summed) | 6,231 | 0.64% |
Shares outstanding: 979,520, the issuer's latest cover-page count restated onto today's split basis.
13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.
Holders of MTNB
| # | Holder | Shares | As of | Notes |
|---|---|---|---|---|
| 1 |
|
1,126,281 | ||
| 2 |
|
87,099 | ||
| 3 |
|
82,097 | ||
| 4 |
|
36,333 | ||
| 5 |
111 Equity Group LLC
13D
CIK 2024448 · Unknown · Feb 13, 2025
|
12,243 | ||
| 6 |
RENAISSANCE TECHNOLOGIES LLC
13F
CIK 1037389 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
4,736 | ||
| 7 |
BlackRock, Inc.
13F
CIK 2012383 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
3,351 | ||
| 8 |
GEODE CAPITAL MANAGEMENT, LLC
13F
CIK 1214717 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
3,276 | ||
| 9 |
VANGUARD CAPITAL MANAGEMENT LLC
13F
CIK 2100119 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
2,674 | ||
| 10 |
VANGUARD EXTENDED MARKET INDEX FUND
Fund
S000002841 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
2,674 | ||
| 11 |
Fidelity Extended Market Index Fund
Fund
S000006021 · Registered fund · May 31, 2026
Fidelity Concord Street Trust, not summed
|
2,639 | ||
| 12 |
Holos Integrated Wealth LLC
13F
CIK 2080096 · Unknown · Sep 30, 2026
|
2,165 | ||
| 13 |
VANGUARD FIDUCIARY TRUST CO
13F
CIK 933478 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,154 | ||
| 14 |
SUSQUEHANNA INTERNATIONAL GROUP, LLP
13F
CIK 1446194 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,073 | ||
| 15 |
CITADEL ADVISORS LLC
13F
CIK 1423053 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,031 | ||
| 16 |
|
1,021 | ||
| 17 |
Sargent Investment Group, LLC
13F
CIK 1766157 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
848 | ||
| 18 |
Fidelity Total Market Index Fund
Fund
S000006026 · Registered fund · May 31, 2026
Fidelity Concord Street Trust, not summed
|
510 | ||
| 19 |
Fidelity Series Total Market Index Fund
Fund
S000065248 · Registered fund · May 31, 2026
Fidelity Concord Street Trust, not summed
|
408 | ||
| 20 |
Tower Research Capital LLC (TRC)
13F
CIK 1533421 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
190 | ||
| 21 |
|
100 | ||
| 22 |
Vanguard Global Advisers, LLC
13F
CIK 1811242 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
89 | ||
| 23 |
MORGAN STANLEY
13F
CIK 895421 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
23 | ||
| 24 |
Costello Asset Management, INC
13F
CIK 1760145 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
13 | ||
| 25 |
WELLS FARGO & COMPANY/MN
13F
CIK 72971 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
7 | ||
| 26 |
EverSource Wealth Advisors, LLC
13F
CIK 1710537 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
4 | ||
| 27 |
JONES FINANCIAL COMPANIES LLLP
13F
CIK 815917 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
4 | ||
| 28 |
OSAIC HOLDINGS, INC.
13F
CIK 1677044 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
3 | ||
| 29 |
VISION FINANCIAL MARKETS LLC
13F
CIK 1378145 · Unknown · Sep 30, 2026
|
2 | ||
| 30 |
IFG Advisory, LLC
13F
CIK 1728319 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1 | ||
| 31 |
NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO
13F
CIK 1141802 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1 | ||
| 32 |
ROTHSCHILD INVESTMENT LLC
13F
CIK 85338 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1 |
Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.