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MATINAS BIOPHARMA HLDGS INC (MTNB)

Institutional ownership, SEC filings and insider activity

Sector: Healthcare & Pharma · SEC CIK 0001582554 · EDGAR filings · Updated 2026-07-24

MATINAS BIOPHARMA HLDGS INC (MTNB) has reported institutional ownership of 5.5%, with 28 institutional managers holding positions valued at $177.3K per the latest 13F reporting period. SEC filings include an active material impairment disclosure (8-K Item 2.06), notice of delisting or failure to satisfy a continued listing rule (8-K Item 3.01), substantial-doubt (going concern) disclosure per the filings.

Institutional ownership
5.5%
Institutional managers
28
Reported 13F value
$177.3K
Data flags
3 active
from SEC filings

Filings this week (1)

Every filing links to the official SEC document. Real-time filing alerts for this company are available inside the app.

Latest updates

Institutional ownership overview

According to SEC 13F filings tracked by Sightfile, MATINAS BIOPHARMA HLDGS INC has 28 institutional holders and institutional ownership of 5.5%.

Insider activity

Insiders reported 0 transactions (0 buys, 0 sells) across 2 reporting insiders, with a net reported value of $0.

Data flags from SEC filings

Active notice of delisting or failure to satisfy a continued listing rule (8-K Item 3.01), most recently filed 2026-06-26 (recurring since 2023-09-22) — source filing. The authoritative details are those stated in the filing itself.
Active substantial-doubt (going concern) disclosure per the filings, most recently filed 2026-05-08 (recurring since 2023-08-09) — source filing. The authoritative details are those stated in the filing itself.
Active material impairment disclosure (8-K Item 2.06), most recently filed 2024-10-31 (recurring since 2024-10-31) — source filing. The authoritative details are those stated in the filing itself.

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Sightfile provides information only — not investment advice, recommendations, or an assessment of any security. Data is derived from official public sources (SEC EDGAR and U.S. government agencies), may contain errors or delays, and should be verified against the source filing before relying on it.
Data sources: SEC EDGAR (filings, 13F, FTD), aggregated by Sightfile. Page updated 2026-07-24.