13F Insight
DOSSIER · 13F Holders · Q2 2026

ARQIT QUANTUM INC

76 institutions still hold ARQIT QUANTUM INC as of Q2 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP G0567U127·76 13F holders·last filed Jun 30, 2026
Market cap
—
13F value held
$242M
visible holders
Holders
76
filers reporting
Concentration
60.79%
Defiance ETFs, LLC #1
top holder share
AI Holders Summary · Q2 2026

76 institutions reported ARQIT QUANTUM INC in Q2 2026. Defiance ETFs, LLC leads at 60.8% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter
01
Defiance ETFs, LLC
CIK 0001732541
$147M5.1M2.00%Q2 202602
Penserra Capital Management LLC
CIK 0001593324
$19M1.5M0.23%Q1 202603
UBS Group AG
CIK 0001610520
$16M523K0.00%Q2 202604
SUSQUEHANNA INTERNATIONAL GROUP, LLP
CIK 0001446194· Market maker
$9M311K0.00%Q2 202605
Legal & General Group Plc
CIK 0000764068
$8M276K0.00%Q2 202606
NATIONAL BANK OF CANADA /FI/
CIK 0000926171
$6M212K0.00%Q2 202607
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.
CIK 0001705339
$6M188K0.01%Q2 202608
CITADEL ADVISORS LLC
CIK 0001423053
$5M165K0.00%Q2 202609
Kessler Investment Group, LLC
CIK 0001525947
$5M153K1.94%Q2 202610
Crawford Fund Management, LLC
CIK 0001816427
$4M148K0.67%Q2 202611
Bank of New York Mellon Corp
CIK 0001390777
$3M99K0.00%Q2 202612
RAYMOND JAMES FINANCIAL INC
CIK 0000720005
$3M95K0.00%Q2 202613
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
$2M79K0.00%Q2 202614
BANK OF AMERICA CORP /DE/
CIK 0000070858
$2M54K0.00%Q2 202615
WOLVERINE TRADING, LLC
CIK 0000927337
$2M46K0.00%Q3 202516
VAN ECK ASSOCIATES CORP
CIK 0000869178
$1M49K0.00%Q2 202617
Cetera Investment Advisers
CIK 0001666741
$1M38K0.00%Q2 202618
Walleye Capital LLC
CIK 0001758720
$1M37K0.00%Q2 202619
BANQUE PICTET & CIE SA
CIK 0001535602
$1M36K0.01%Q2 202620
JANE STREET GROUP, LLC
CIK 0001595888· Market maker
$880K66K0.00%Q1 2026
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