Ticker · CUSIP 33749P507

GRDX

ENTERO THERAPEUTICS INC
···Share
Holders (tracked)
1
Combined shares
31,000
Combined value
$144.5K
Last close
$2.89
Quarter
2025Q4
Price · 1Y$2.89+1.76 (+154.85%)H $5.63 · L $1.02 · Avg Vol 656K
Position opened
$1.00$2.00$3.00$4.00$5.00VolJul 25Oct 25Jan 26Apr 26
Tracked holders · last 8 quarters
Flat over the last 2 quarters.
112025Q32025Q4
Price is -38.0% vs the avg quarter-end implied price across tracked holders.

SEC event timeline

2 events
  1. Renaissance Technologies trimmed2026-02-12
    −55,400 shares · 2025Q4
    Position
  2. Renaissance Technologies opened position2025-11-13
    +86,400 shares · 2025Q3
    Position

Insider activity

No insider transactions in the last 30 days.
View full insider history for GRDX →
Follow-the-investor returns
If you'd copied each holder of GRDX…
Cost basis inferred from each manager's quarter-over-quarter position changes. Sorted by % return on the position they're still holding.
InvestorFirst inCost basisReturnPosition value today
Renaissance Technologies2025Q3$5.00-42.2%$90K

Who moved on this name in 2025Q4

Position changes reported for the latest quarter, grouped by direction.
New positions0
—
Added to0
—
Trimmed1
Exited0
—

Institutional ownership over time

Distinct super-investors holding this ticker · combined dollar value, by quarter.
QuarterHoldersCombined value
2025Q3
1
$432K
2025Q4
1
$144K

Who owns GRDX

1 super-investors · 2025Q4
Tracked stake
31.0K
shares
Combined value
$144K
% of shares outstanding
—
shares-out unknown
Quarter action mix
Trim1
#ManagerSharesValue
1Renaissance Technologies31.0K$144K

Recent moves

2 transactions
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