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ISSUER PROFILE · CIK 0001582554 · CUSIP 576810303

Matinas BioPharma Holdings, Inc.MTNB

1 13D/G filings 1 distinct filers 0 insider transactions (365d)

Post-Filing Returns · across 1 activist filings on this issuer

Median 30d
avg —
Median 60d
avg —
Median 90d
avg —
Median 180d
avg —

Returns measured from each activist filing's date_of_event, split + dividend adjusted via Yahoo Finance.

Cross-Reference Snapshot

Activist filings
1
1 SCHEDULE
Distinct filers
1
single filer
Insiders (365d)
0
0 buys · 0 sales
Latest short DTC
1.00
as of 2026-03-31

13D/G Filings Timeline · 1 total

FiledFormFilerStakeSharesIntent
2025-02-19 SCHEDULE 111 Equity Group 3.61% 183,639 view →

FINRA Short Interest History

SettlementShort InterestDays to Cover% Δ vs prior
2026-03-31 8,751 1.00 +21.8%
2026-03-13 7,185 1.00 +60.2%
2026-02-27 4,485 1.00 -19.7%
2026-02-13 5,585 1.00 +1201.9%
2026-01-30 429 1.00 +62.5%
2026-01-15 264 1.00 -97.3%
2025-12-31 9,733 1.00 -12.1%
2025-12-15 11,067 1.00 -45.3%

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