13F Insight
DOSSIER · 13F Holders · Q1 2026

HORIZON QUANTUM HOLDINGS LTD

18 institutions still hold HORIZON QUANTUM HOLDINGS LTD as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP Y4000A128·18 13F holders·last filed Mar 31, 2026
Market cap
—
13F value held
$3M
visible holders
Holders
18
filers reporting
Concentration
23.06%
LMR Partners LLP #1
top holder share
AI Holders Summary · Q1 2026

18 institutions reported HORIZON QUANTUM HOLDINGS LTD in Q1 2026. LMR Partners LLP leads at 23.1% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter
01
LMR Partners LLP
CIK 0001578621
$717K350K0.00%Q1 202602
Polar Asset Management Partners Inc.
CIK 0001326389
$557K258K0.01%Q1 202603
Saba Capital Management, L.P.
CIK 0001510281
$459K212K0.01%Q1 202604
Q Global Advisors, LLC
CIK 0001469589
$406K198K0.36%Q1 202605
Shaolin Capital Management LLC
CIK 0001766806
$226K110K0.01%Q1 202606
LINDEN ADVISORS LP
CIK 0001279396
$204K94K0.00%Q1 202607
Alberta Investment Management Corp
CIK 0001463559· Sovereign
$128K63K0.00%Q1 202608
Hudson Bay Capital Management LP
CIK 0001393825
$96K47K0.00%Q1 202609
ARISTEIA CAPITAL, L.L.C.
CIK 0001080171
$78K36K0.00%Q1 202610
Verition Fund Management LLC
CIK 0001454027
$64K31K0.00%Q1 202611
Clear Street Group Inc.
CIK 0001881567
$40K19K0.00%Q1 202612
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
$36K18K0.00%Q1 202613
CSS LLC/IL
CIK 0001103646
$35K17K0.00%Q1 202614
Walleye Capital LLC
CIK 0001758720
$26K13K0.00%Q1 202615
SUSQUEHANNA INTERNATIONAL GROUP, LLP
CIK 0001446194· Market maker
$21K10K0.00%Q1 202616
WOLVERINE ASSET MANAGEMENT LLC
CIK 0001279891
$9K4K0.00%Q1 202617
Caption Management, LLC
CIK 0001706766
$6K3K0.00%Q1 202618
UBS Group AG
CIK 0001610520
$3101510.00%Q1 2026