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ISSUER PROFILE · CIK 0001604191 · CUSIP 33749P408

Entero Therapeutics, Inc.GRDX

5 13D/G filings 2 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
5
1 SCHEDULE · 4 SC
Distinct filers
2
multi-activist cluster
Insiders (365d)
0
0 buys · 0 sales
Latest short DTC
1.00
as of 2026-05-29

13D/G Filings Timeline · 5 total

FiledFormFilerStakeSharesIntent
2025-06-10 SCHEDULE Ali Arif Nasir 4.90% 230,900 view →
2021-02-10 SC Ross Edmund Burke Jr. view →
2020-08-11 SC Ross Edmund Burke Jr. view →
2020-01-29 SC Ross Edmund Burke Jr. view →
2019-01-08 SC Ross Edmund Burke Jr. view →

FINRA Short Interest History

SettlementShort InterestDays to Cover% Δ vs prior
2026-05-29 73,503 1.00 +26.5%
2026-05-15 58,119 1.00 -1.1%
2026-04-30 58,762 1.00 +7.0%
2026-04-15 54,908 1.00 -10.1%
2026-03-31 61,097 1.03 +9.5%
2026-03-13 55,784 1.00 -25.7%
2026-02-27 75,053 1.00 -18.6%
2026-02-13 92,182 1.00 +105.6%
2026-01-30 44,845 1.00 +134.3%
2026-01-15 19,142 1.00 -83.3%
2025-12-31 114,788 1.00 +107.8%
2025-12-15 55,239 1.00 +93.1%

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