Security key
576810303
Matinas BioPharma Holdings, Inc. - COMMON STOCK, $0.0001 PAR VALUE PER SHARE (MTNB)
CUSIP: 576810303
Q2 2026 13F Holders as of 30 Jun 2026
- Security type / class
- Equity / COMMON STOCK, $0.0001 PAR VALUE PER SHARE
- Total 13F shares
- 32,799
- Total 13F value
- $20,363
- Share change
- +1
- SEC-reported price per share
- $0.61
- Number of holders
- 7
- Value change
- +$1
- Number of buys
- 1
- Shares outstanding
- 13,694,843
Holder snapshot
5 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q2 2026
Institutions
7
Top holders
7
MTNB full security history
Ownership snapshot
Full 13F holder table
Previous quarter: Q1 2026
Matinas BioPharma Holdings, Inc. SEC filings
Matinas BioPharma Holdings, Inc. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 576810303
Recent filing periods:
Ownership snapshot
Top reported holders of MTNB - Matinas BioPharma Holdings, Inc. - COMMON STOCK, $0.0001 PAR VALUE PER SHARE (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Sanitam Partners LLC
Disclosed value leader
Sanitam Partners LLC
Comparable rows
15/15
Latest evidence
31 Mar 2026
13D/G
3/4/5
13F
Lead comparable stake: 10%
13D/G row: Sanitam Partners LLC
Showing 1-6 of 15 holder rows.
Quick read
Sanitam Partners LLC leads the comparable SEC ownership view at 10%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens Sanitam Partners LLC's linked filing trail.
Comparable ownership
Top 5
Sanitam Partners LLC
10%
Pembroke & Partners LLC
10%
David E. Lazar
9.8%
111 Equity Group
3.6%
GEODE CAPITAL MANAGEMENT, LLC
0.48%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Sanitam Partners LLC |
13D/G
3/4/5
STERN ADAM K · 10%+ Owner
|
10%
|
$10,262,939
17,104,899 shares
|
+$9,526,394 | 08 Apr 2025 |
| Pembroke & Partners LLC |
13D/G
3/4/5
Robert J. Eide · 10%+ Owner
|
10%
|
$10,137,427
16,895,712 shares
|
+$9,526,394 | 08 Apr 2025 |
| David E. Lazar |
13D/G
Lazar David E.
|
9.8%
|
$517,750
545,000 shares
|
$0 | 15 Aug 2025 |
| 111 Equity Group |
13D/G
111 Equity Group LLC
|
3.6%
|
$110,183
183,639 shares
|
-$47,617 | 13 Feb 2025 |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
Company
|
0.48%
|
$32,590
65,170 shares
|
— | 31 Mar 2026 |
| CITADEL ADVISORS LLC |
13F
Company
|
0.38%
|
$25,849
51,698 shares
|
— | 31 Mar 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q2 2026
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
7
Shares
32,799
Rows available
7
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q2 2026 vs Q1 2026 Across Filers
Q1 2026 holders
28
Q2 2026 holders
7
Holder diff
-21
| Investor | Q1 2026 Shares | Q2 2026 Shares | Share Diff | Share Chg % | Q1 2026 value | Q2 2026 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend