ARQQ · Arqit Quantum Inc.

$21.37 +0.75 (+3.64%) At close · Sep 4

Market Cap

$371.89M

17.40M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Use institutional holdings through the 13F API or MCP →

Quarter:

Holders: 73

Total Value: $393,869,524

Total Shares: 16,703,159

Institutional Ownership Trend

20 quarters

Holder Concentration

Across 73 13F filers · Δ vs Mar 31, 2026

Top Holder

38.5%

+5.9 pts

Top 5

85.3%

+5.2 pts

Top 10

92.8%

+3.0 pts

HHI

2,992

Highly concentrated+755

Quarterly Activity

vs Mar 31, 2026

New

Increased

Decreased

Sold Out

Unchanged

Holder count: +7

Institutional value: +567.4%

Shares held: +51.5%

Top Buyers

vs Mar 31, 2026

Institution	Added	Now Holds
Mid Defiance ETFs, LLC	+3,646,712	5,099,023
Large Penserra Capital Management LLC	+3,628,908	5,081,219
Mega UBS Group AG	+437,135	524,766
Mega JANE STREET GROUP, LLC	+226,401	335,463
Mega Legal & General Group Plc	+223,307	275,939

Top Sellers

vs Mar 31, 2026

Institution	Sold	Now Holds
Large MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.	−136,127	188,182
Mid Foundations Investment Advisors, LLC	−84,811	2,953,810
Large OSAIC HOLDINGS, INC.	−9,632	3,465
Small Kessler Investment Group, LLC	−4,464	153,105
Large Mirae Asset Global Investments Co., Ltd.	−2,402	3,444

Top New Positions

vs Mar 31, 2026

Institution	Acquired	Value (USD)
Large Cetera Investment Advisers	38,198	$1,135,244
Large Walleye Capital LLC	37,000	$1,099,640
Small KKM Financial LLC	31,394	$933,029
Large Man Group plc	26,210	$778,961
Mega LPL Financial LLC	17,109	$508,479

Top Sold-Out Positions

vs Mar 31, 2026

Institution	Previously Held	Last Value (USD)
Large RENAISSANCE TECHNOLOGIES LLC	41,400	$548,550
Large TUDOR INVESTMENT CORP ET AL	38,069	$504,414
Small True Vision MN LLC	14,848	$196,736
Small Headlands Technologies LLC	12,321	$163,253
Mid Stonehage Fleming Financial Services Holdings Ltd	11,528	$152,746

Filter: New 21 Increased 24 Reduced 13 Sold out 14 Unchanged 15

Showing 85 of 85

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

Defiance ETFs, LLC

$151,542,963

38.48%

5,099,023

Penserra Capital Management LLC

$151,013,828

38.34%

5,081,219

UBS Group AG

$15,539,813

3.95%

522,874

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
UBS Financial Services Inc	2,000	$59,440	0.4%	Defined
UBS AG	453,076	$13,465,418	86.7%	Defined
UBS Switzerland AG	57,465	$1,707,859	11.0%	Defined
UBS Securities LLC	10,333	$307,096	2.0%	Defined

Legal & General Group Plc

$8,200,907

2.08%

275,939

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Legal & General Investment Management Ltd	275,939	$8,200,907	100.0%	Defined

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$7,314,092

1.86%

246,100

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	246,100	$7,314,092	100.0%	Other

JANE STREET GROUP, LLC

$6,588,924

1.67%

221,700

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Jane Street Capital, LLC	221,700	$6,588,924	100.0%	Defined

NATIONAL BANK OF CANADA /FI/

$6,300,640

1.60%

212,000

MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.

$5,592,768

1.42%

188,182

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Global X Management CO LLC joint	185,053	$5,499,775	98.3%	Defined
Global X Management (AUS) Ltd joint	3,129	$92,993	1.7%	Defined

Kessler Investment Group, LLC

$4,550,280

1.16%

153,105

Crawford Fund Management, LLC

$4,398,560

1.12%

148,000

CITADEL ADVISORS LLC

$3,325,668

0.84%

111,900

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	111,900	$3,325,668	100.0%	Defined

Bank of New York Mellon Corp

$2,946,618

0.75%

99,146

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Mellon Investments Corporation	99,144	$2,946,559	100.0%	Defined
Held directly	2	$59	0.0%	Defined

RAYMOND JAMES FINANCIAL INC

$2,830,829

0.72%

95,250

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
RAYMOND JAMES & ASSOCIATES	27,166	$807,373	28.5%	Defined
Raymond James Financial Services Advisors, Inc.	68,084	$2,023,456	71.5%	Defined

MILLENNIUM MANAGEMENT LLC

$2,339,469

0.59%

78,717

JANE STREET GROUP, LLC

$2,124,980

0.54%

71,500

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Jane Street Capital, LLC	71,500	$2,124,980	100.0%	Defined

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$1,913,968

0.49%

64,400

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	64,400	$1,913,968	100.0%	Other

BANK OF AMERICA CORP /DE/

$1,610,586

0.41%

54,192

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BANK OF AMERICA NA	35,000	$1,040,200	64.6%	Defined
MERRILL LYNCH INTERNATIONAL	19,192	$570,386	35.4%	Defined

CITADEL ADVISORS LLC

$1,572,188

0.40%

52,900

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	52,900	$1,572,188	100.0%	Defined

VAN ECK ASSOCIATES CORP

$1,470,753

0.37%

49,487

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
VanEck Asset Management B.V.	49,487	$1,470,753	100.0%	Sole

Cetera Investment Advisers

$1,135,244

0.29%

38,198

BANQUE PICTET & CIE SA

$1,069,920

0.27%

36,000

Walleye Capital LLC

$995,620

0.25%

33,500

KKM Financial LLC

$933,029

0.24%

31,394

Man Group plc

$778,961

0.20%

26,210

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Numeric Investors LLC	26,210	$778,961	100.0%	Defined

SBI Securities Co., Ltd.

$776,732

0.20%

26,135

Advisory Services Network, LLC

$646,023

0.16%

21,737

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
ZACKS INVESTMENT MANAGEMENT	9	$267	0.0%	Other
Held directly	21,728	$645,756	100.0%	Sole

Zurcher Kantonalbank (Zurich Cantonalbank)

$632,917

0.16%

21,296

WELLS FARGO & COMPANY/MN

$632,768

0.16%

21,291

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
WELLS FARGO ADVISORS FINANCIAL NETWORK, LLC	4,632	$137,663	21.8%	Defined
WELLS FARGO CLEARING SERVICES, LLC	16,659	$495,105	78.2%	Defined

LPL Financial LLC

$508,479

0.13%

17,109

MORGAN STANLEY

$483,722

0.12%

16,276

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
MORGAN STANLEY & CO. LLC	7	$208	0.0%	Defined
MORGAN STANLEY CAPITAL SERVICES, LLC	11,614	$345,168	71.4%	Defined
MORGAN STANLEY SMITH BARNEY LLC	4,655	$138,346	28.6%	Defined

Tidal Investments LLC

$476,114

0.12%

16,020

CITIGROUP INC

$433,079

0.11%

14,572

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citigroup Financial Products Inc. joint	14,572	$433,079	100.0%	Defined

GROUP ONE TRADING LLC

$376,909

0.10%

12,682

SIMPLEX TRADING, LLC

$340,947

0.09%

11,472

ROYAL BANK OF CANADA

$282,904

0.07%

9,519

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
RBC Capital Markets, LLC	9,519	$282,904	100.0%	Defined

GEODE CAPITAL MANAGEMENT, LLC

$276,217

0.07%

9,294

HSBC HOLDINGS PLC

$251,223

0.06%

8,453

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
HSBC BANK PLC	8,453	$251,223	100.0%	Defined

Heck Capital Advisors, LLC

$234,253

0.06%

7,882

GOLDMAN SACHS GROUP INC

$216,747

0.06%

7,293

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
GOLDMAN SACHS & CO. LLC	7,293	$216,747	100.0%	Defined

McGuire Investment Group, LLC

$205,900

0.05%

6,928

BlackRock, Inc.

$195,764

0.05%

6,587

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BLACKROCK FINANCIAL MANAGEMENT INC/DE	5,822	$173,029	88.4%	Sole
BlackRock Institutional Trust Company, N.A.	765	$22,735	11.6%	Sole

JONES FINANCIAL COMPANIES LLLP

$120,990

0.03%

4,071

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Edward D. Jones & Co., L.P.	4,071	$120,990	100.0%	Sole

Walleye Capital LLC

$104,020

0.03%

3,500

Mirae Asset Global Investments Co., Ltd.

$102,355

0.03%

3,444

OSAIC HOLDINGS, INC.

$95,549

0.02%

3,215

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
OSAIC WEALTH, INC.	1,780	$52,901	55.4%	Defined
Osaic Advisory Services, LLC	1,435	$42,648	44.6%	Defined

Center for Financial Planning, Inc.

$83,750

0.02%

2,818

Leonteq Securities AG

$44,580

0.01%

1,500

Tower Research Capital LLC (TRC)

$37,268

0.01%

1,254

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Latour Trading LLC (Latour)	1,254	$37,268	100.0%	Defined

Rockefeller Capital Management L.P.

$29,720

0.01%

1,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
ROCKEFELLER FINANCIAL LLC	1,000	$29,720	100.0%	Defined

EFG International AG

$29,720

0.01%

1,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
EFG Private Bank Ltd	1,000	$29,720	100.0%	Defined

HARBOUR INVESTMENTS, INC.

$26,748

0.01%

900

Integrated Wealth Concepts LLC

$18,545

0.00%

624

SIGNATUREFD, LLC

$17,832

0.00%

600

Steward Partners Investment Advisory, LLC

$17,832

0.00%

600

Ameritas Advisory Services, LLC

$16,762

0.00%

564

BNP PARIBAS ARBITRAGE, SA

$16,732

0.00%

563

WOLVERINE ASSET MANAGEMENT LLC

$14,533

0.00%

489

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Wolverine Holdings, LLC	489	$14,533	100.0%	Defined

IFP Advisors, Inc

$5,498

0.00%

185

Farther Finance Advisors, LLC

$5,111

0.00%

172

Heritage Wealth Advisors

$3,863

0.00%

130

Parallel Advisors, LLC

$3,625

0.00%

122

West Financial Advisors, LLC

$2,972

0.00%

100

UBS Group AG

$2,972

0.00%

100

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
UBS Securities LLC	100	$2,972	100.0%	Defined

DEUTSCHE BANK AG\

$1,188

0.00%

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Deutsche Bank S.p.A	40	$1,188	100.0%	Defined

Quarry LP

$1,188

0.00%

US BANCORP \DE\

$1,040

0.00%

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
US BANK NATIONAL ASSOCIATION	35	$1,040	100.0%	Defined

Y.D. More Investments Ltd

$886

0.00%

8,881

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
More Mutual Funds Management (2013) Ltd.	8,881	$886	100.0%	Defined

Investors Portfolio Services LLC

$832

0.00%

Cornerstone Financial Management LLC

$743

0.00%

CoreCap Advisors, LLC

$475

0.00%

Parkside Financial Bank & Trust

$475

0.00%

MCF Advisors LLC

$297

0.00%

TD Waterhouse Canada Inc.

$59

0.00%

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
TORONTO DOMINION BANK	2	$59	100.0%	Defined

Covestor Ltd

$29

0.00%

HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND

$29

0.00%

JANE STREET GROUP, LLC ARQQW

—

42,263

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Jane Street Capital, LLC	33,402	$0	—	Defined
Jane Street Global Trading, LLC	8,861	$0	—	Defined

HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND ARQQW

—

73,728

Vestcor Inc ARQQW

—

75,000

Silver Rock Financial LP ARQQW

—

42,139

UBS Group AG ARQQW

—

1,792

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
UBS Securities LLC	1,792	$0	—	Defined

OSAIC HOLDINGS, INC. ARQQW

—

250

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Osaic Advisory Services, LLC	250	$0	—	Defined

Foundations Investment Advisors, LLC ARQQW

—

2,953,810

WOLVERINE ASSET MANAGEMENT LLC ARQQW

—

10,329

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Wolverine Holdings, LLC	10,329	$0	—	Defined

MILLENNIUM MANAGEMENT LLC ARQQW

—

195,000

GOLDMAN SACHS GROUP INC ARQQW

—

47,320

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
GOLDMAN SACHS & CO. LLC	47,320	$0	—	Defined

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Kessler Investment Group	14,848	$196,736	100.0%	Defined

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Manager 1 joint	444	$5,883	100.0%	Sole

Key facts CIK 1859690 CUSIP G0567U127 13F (30d) 47 filings 47 filers Visit website Investor relations