13F Insight
DOSSIER · 13F Holders · Q2 2026

HORIZON QUANTUM HOLDINGS LTD

11 institutions still hold HORIZON QUANTUM HOLDINGS LTD as of Q2 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP Y4000A128·11 13F holders·last filed Jun 30, 2026
Market cap
—
13F value held
$5M
visible holders
Holders
11
filers reporting
Concentration
20.24%
Alberta Investment Management Corp #1
top holder share
AI Holders Summary · Q2 2026

11 institutions reported HORIZON QUANTUM HOLDINGS LTD in Q2 2026. Alberta Investment Management Corp leads at 20.2% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter
01
Alberta Investment Management Corp
CIK 0001463559· Sovereign
$1M63K0.01%Q2 202602
Centiva Capital, LP
CIK 0001692507
$938K59K0.01%Q2 202603
Hudson Bay Capital Management LP
CIK 0001393825
$915K57K0.00%Q2 202604
LMR Partners LLP
CIK 0001578621
$594K37K0.00%Q2 202605
Q Global Advisors, LLC
CIK 0001469589
$406K198K0.36%Q1 202606
Greenland Capital Management LP
CIK 0001896430
$361K23K0.04%Q2 202607
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
$280K18K0.00%Q2 202608
ARISTEIA CAPITAL, L.L.C.
CIK 0001080171
$218K14K0.00%Q2 202609
Saba Capital Management, L.P.
CIK 0001510281
$174K11K0.00%Q2 202610
Caption Management, LLC
CIK 0001706766
$48K3K0.00%Q2 202611
UBS Group AG
CIK 0001610520
$8K5020.00%Q2 2026