DOSSIER · 13F Holders · Q1 2026
ASTX

INVESTMENT MANAGERS SER TR

12 institutions still hold INVESTMENT MANAGERS SER TR as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 46143U542·12 13F holders·last filed Mar 31, 2026
Market cap
13F value held
$35M
visible holders
Holders
12
filers reporting
Concentration
26.13%
SUSQUEHANNA INTERNATIONAL GROUP, LLP #1
top holder share
AI Holders Summary · Q1 2026

12 institutions reported ASTX in Q1 2026. SUSQUEHANNA INTERNATIONAL GROUP, LLP leads at 26.1% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter
01
SUSQUEHANNA INTERNATIONAL GROUP, LLP
CIK 0001446194· Market maker
$9M254K0.00%Q1 2026
02
CITADEL ADVISORS LLC
CIK 0001423053
$7M175K0.00%Q4 2025
03
JANE STREET GROUP, LLC
CIK 0001595888· Market maker
$7M191K0.00%Q1 2026
04
HighTower Advisors, LLC
CIK 0001462245
$5M129K0.01%Q1 2026
05
Belvedere Trading LLC
CIK 0001632341
$2M67K0.00%Q1 2026
06
UBS Group AG
CIK 0001610520
$1M36K0.00%Q1 2026
07
MIRAE ASSET SECURITIES (USA) INC.
CIK 0000890203
$1M30K0.04%Q1 2026
08
IMC-Chicago, LLC
CIK 0001452861· Market maker
$701K19K0.00%Q1 2026
09
Optiver Holding B.V.
CIK 0001859606· Market maker
$617K17K0.00%Q1 2026
10
XTX Topco Ltd
CIK 0001828301
$496K14K0.01%Q1 2026
11
T3 Companies, LLC
CIK 0002052441
$364K10K0.47%Q1 2026
12
SIMPLEX TRADING, LLC
CIK 0001488542
$267K7K0.00%Q1 2026
Insiders at INVESTMENT MANAGERS SER TR
Girardi Thomas VHaines TimothyFellner PeterBuckland MartinJhoti HarrenKola IsmailGoldberg Allan RAzab Mohammad