Arqit Quantum ARQQ Institutional Ownership

NASDAQ ARQQ

$16.40 +1.09 (+7.12%)

At close: Oct 21, 2026 · 4:00 PM EDT

Institutions by Trading Activity

65 Institutions

Increased 41 63.1%

Unchanged 13 20.0%

Reduced 11 16.9%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

89.20%

▲+60.02 pp QoQ

Shares Held by Institutions

12.30Mn

of 13.79Mn outstanding

▲+205.67% QoQ

Shares Outstanding

13.79Mn

1.49Mn held outside 13F filers

Institutional Investors

filed 13F for Jun 2026

▲+8 vs prior quarter

Net Shares Added (QoQ)

+8.28Mn

accumulated since last quarter

Value of Holdings

$188.30Mn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Updated Oct 11, 2026

Arqit Quantum Inc. (NASDAQ:ARQQ) counted 65 institutional investors among its 13F-reported shareholders for the quarter ended June 30, 2026.

Their combined stake equaled 89.20% of outstanding shares in Q2 2026, up from 29.18% in Q1 2026.
Total shares held in Arqit Quantum rose 205.67% versus Q1 2026, while the number of holders rose 58.54% versus Q2 2025.
Among the 65 holders of Arqit Quantum, 41 added to their positions, 11 reduced their stakes and 13 left their positions unchanged.
The aggregate institutional position in Arqit Quantum was 12.3Mn shares at the end of Q2 2026, up 8.28Mn from the prior quarter and up 11.11Mn from a year earlier.
Defiance ETFs, LLC was the top holder of Arqit Quantum as of June 30, 2026, with 5.1Mn shares, or 36.98% of shares outstanding.
The biggest increases in ARQQ positions during Q2 2026 came from Defiance ETFs, LLC (+3.65Mn shares), Penserra Capital Management LLC (+3.63Mn shares), UBS Group AG (+437.44K shares), Legal & General Group PLC (+223.31K shares) and National Bank of Canada (+210.91K shares).
The largest position reductions in ARQQ for Q2 2026 were by Mirae Asset Global ETFS Holdings Ltd. (-136.13K shares), Kessler Investment Group, LLC (-4.46K shares), Mirae Asset Global Investments Co., Ltd. (-2.4K shares), SBI Securities Co., Ltd. (-974 shares) and IFP Advisors, Inc (-940 shares).
According to Business Quant data, the leading holders of ARQQ for Q2 2026 were Defiance ETFs, LLC (5.1Mn shares), Penserra Capital Management LLC (5.08Mn shares), UBS Group AG (522.87K shares), Legal & General Group PLC (275.94K shares), National Bank of Canada (212K shares), Mirae Asset Global ETFS Holdings Ltd. (188.18K shares), Kessler Investment Group, LLC (153.1K shares), Bank of New York Mellon Corp (99.15K shares), Raymond James Financial Inc (95.25K shares) and Millennium Management LLC (78.72K shares).

Form 13F Holdings

65 Institutional Holders

Report period 30 Jun, 2026

Total shares held 12.30Mn

Of outstanding 89.20%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	Defiance ETFs, LLC	0001732541	5,099,023	36.98%	▲3,646,712	+251.10%	$147.11Mn
2	Penserra Capital Management LLC	0001593324	5,081,219	36.85%	▲3,628,908	+249.87%	$151.01K
3	UBS Group AG	0001610520	522,874	3.79%	▲437,439	+512.01%	$15.54Mn
4	Legal & General Group Plc	0000764068	275,939	2.00%	▲223,307	+424.28%	$8.15Mn
5	NATIONAL BANK OF CANADA /FI/	0000926171	212,000	1.54%	▲210,907	+19,296.16%	$6.30Mn
6	MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.	0001705339	188,182	1.36%	▼136,127	-41.97%	$5.59Mn
7	Kessler Investment Group, LLC	0001525947	153,105	1.11%	▼4,464	-2.83%	$4.55Mn
8	Bank of New York Mellon Corp	0001390777	99,146	0.72%	▲87,234	+732.32%	$2.95Mn
9	Raymond James Financial Inc	0000720005	95,250	0.69%	▲31,413	+49.21%	$2.83Mn
10	MILLENNIUM MANAGEMENT LLC	0001273087	78,717	0.57%	▲24,691	+45.70%	$2.34Mn
11	Bank Of America Corp /De/	0000070858	54,192	0.39%	▲35,000	+182.37%	$1.61Mn
12	VAN ECK ASSOCIATES CORP	0000869178	49,487	0.36%	▲29,334	+145.56%	$1.47Mn
13	Cetera Investment Advisers	0001666741	38,198	0.28%	▲38,198	0.00%	$1.14Mn
14	BANQUE PICTET & CIE SA	0001535602	36,000	0.26%	0	0.00%	$1.07Mn
15	KKM Financial LLC	0002001943	31,394	0.23%	▲31,394	0.00%	$537.78K
16	Man Group plc	0001637460	26,210	0.19%	▲26,210	0.00%	$778.96K
17	SBI Securities Co., Ltd.	0001851815	26,135	0.19%	▼974	-3.59%	$776.73K
18	Advisory Services Network, LLC	0001573876	21,737	0.16%	▼10	-0.05%	$646.02K
19	Zurcher Kantonalbank (Zurich Cantonalbank)	0001368163	21,296	0.15%	▲11,318	+113.43%	$632.92K
20	Wells Fargo & Company/Mn	0000072971	21,291	0.15%	▲6,198	+41.07%	$632.77K

Showing 1 to 20 of 65 holders