DOSSIER · 13F Holders · Q1 2026
GRDX

ENTERO THERAPEUTICS INC

14 institutions still hold ENTERO THERAPEUTICS INC as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 33749P507·14 13F holders·last filed Mar 31, 2026
Market cap
13F value held
$703K
visible holders
Holders
14
filers reporting
Concentration
52.79%
RENAISSANCE TECHNOLOGIES LLC #1
top holder share
AI Holders Summary · Q1 2026

14 institutions reported GRDX in Q1 2026. RENAISSANCE TECHNOLOGIES LLC leads at 52.8% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
RENAISSANCE TECHNOLOGIES LLC
CIK 0001037389
$371K184K0.00%Q1 2026
02
Federation des caisses Desjardins du Quebec
CIK 0002022297
$97K48K0.00%Q1 2026
03
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$67K33K0.00%Q1 2026
04
STATE STREET CORP
CIK 0000093751
$47K23K0.00%Q1 2026
05
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$37K18K0.00%Q1 2026
06
VANGUARD FIDUCIARY TRUST CO
CIK 0000933478· Index
$33K16K0.00%Q1 2026
07
JANE STREET GROUP, LLC
CIK 0001595888· Market maker
$26K13K0.00%Q1 2026
08
HARBOUR INVESTMENTS, INC.
CIK 0000810121
$16K8K0.00%Q1 2026
09
UBS Group AG
CIK 0001610520
$6K3K0.00%Q1 2026
10
Tower Research Capital LLC (TRC)
CIK 0001533421
$3K1K0.00%Q1 2026
11
SBI Securities Co., Ltd.
CIK 0001851815
$145310.00%Q2 2026
12
Caitong International Asset Management Co., Ltd
CIK 0001963355
$98210.00%Q2 2026
13
DANSKE BANK A/S
CIK 0000800177
$210.00%Q1 2026
14
OSAIC HOLDINGS, INC.
CIK 0001677044
$210.00%Q1 2026
Insiders at ENTERO THERAPEUTICS INC
Sawyer Jason DavidSyage JackSkowron Anna