DOSSIER · 13F Holders · Q1 2026Defensive growthQuality
SNES

SENESTECH INC

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

CUSIP 81720R604·16 13F holders·last filed Mar 31, 2026
Market cap
8.5%
vs prior quarter
13F value held
$1M
70.0% inst. owned
of float
Holders
16
+13 QoQ
filers reporting
Activity
+14 / −51
+784 added · −733 reduced
this quarter
Concentration
30.79%
SABBY MANAGEMENT, LLC #1
top holder share
AI Holders Summary · Q1 2026

16 institutions reported SNES in Q1 2026. SABBY MANAGEMENT, LLC leads at 30.8% of the visible book. +13 net new institutions vs prior quarter — accumulation reading.

Top holders

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

#HolderValueShares% port.Quarter
01
SABBY MANAGEMENT, LLC
CIK 0001535610
$358,394219K0.80%Q1 2026
02
RENAISSANCE TECHNOLOGIES LLC
CIK 0001037389
$186,960114K0.00%Q1 2026
03
CITADEL ADVISORS LLC
CIK 0001423053
$167,64578K0.00%Q4 2025
04
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$103,49363K0.00%Q1 2026
05
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$70,29943K0.00%Q1 2026
06
VANGUARD FIDUCIARY TRUST CO
CIK 0000933478· Index
$51,97832K0.00%Q1 2026
07
ESSEX INVESTMENT MANAGEMENT CO LLC
CIK 0000201772
$43,12226K0.01%Q1 2026
08
XTX Topco Ltd
CIK 0001828301
$34,54021K0.00%Q1 2026
09
UBS Group AG
CIK 0001610520
$34,25821K0.00%Q1 2026
10
JANE STREET GROUP, LLC
CIK 0001595888· Market maker
$27,33217K0.00%Q1 2026
11
STATE STREET CORP
CIK 0000093751
$27,32617K0.00%Q1 2026
12
DIVERSIFY WEALTH MANAGEMENT, LLC
CIK 0002030780
$27,05319K0.00%Q1 2026
13
TWO SIGMA SECURITIES, LLC
CIK 0001450144· Market maker
$17,86611K0.00%Q1 2026
14
OSAIC HOLDINGS, INC.
CIK 0001677044
$8,2005K0.00%Q1 2026
15
MORGAN STANLEY
CIK 0000895421
$5,5763K0.00%Q1 2026
16
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00Q2 2025