Arqit Quantum ARQQ Institutional Ownership

NASDAQ ARQQ

$24.06 -0.06 (-0.25%)

At close: Sep 30, 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

▲+218.24% 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)

+8.43Mn

accumulated since last quarter

Value of Holdings

$295.92Mn

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

Quarter ending 30 Jun, 2026

Arqit Quantum Inc. (NASDAQ:ARQQ) showed up in the 13F filings of 65 institutional investors as of June 2026.

These investors collectively held 89.2% of Arqit Quantum's outstanding shares in June 2026, up from 29.2% in March 2026.
They increased total shares held in ARQQ by 218.24% quarter over quarter, and investors in Arqit Quantum increased 51.16% from a year ago.
Activity in ARQQ broke down as 41 buyers, 11 sellers, and 13 unchanged among 65 total holders.
Institutional investors collectively held 12.3Mn shares in Arqit Quantum as of June 2026, up by 8.43Mn shares quarter on quarter, and up 11.11Mn shares year over year.
As of June 30, 2026, the biggest holder of Arqit Quantum is Defiance ETFs, LLC at 5.1Mn shares, representing 36.98% of shares outstanding.
Leading buyers of Arqit Quantum shares for the quarter ending June 2026 were Defiance ETFs, LLC (3.65Mn), Penserra Capital Management LLC (3.63Mn), UBS Group AG (437.44K), Legal & General Group Plc (223.31K), NATIONAL BANK OF CANADA /FI/ (210.91K).
The biggest sellers of Arqit Quantum for the quarter ending June 2026 included MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. (136.13K), Kessler Investment Group, LLC (4.46K), Mirae Asset Global Investments Co., Ltd. (2.4K), SBI Securities Co., Ltd. (974), IFP Advisors, Inc (940).
Per Business Quant data, the top 10 holders of Arqit Quantum for the quarter ending June 2026 are Defiance ETFs, LLC (5.1Mn), Penserra Capital Management LLC (5.08Mn), UBS Group AG (522.87K), Legal & General Group Plc (275.94K), NATIONAL BANK OF CANADA /FI/ (212.0K), MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. (188.18K), Kessler Investment Group, LLC (153.1K), Bank of New York Mellon Corp (99.15K), Raymond James Financial Inc (95.25K), MILLENNIUM MANAGEMENT LLC (78.72K).

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