Arqit Quantum Ownership | Who Owns Arqit Quantum?

Arqit Quantum Ownership Summary

Arqit Quantum is owned by 12.43% institutional investors, 75.73% insiders, and 11.84% retail investors. Penserra capital management is the largest institutional shareholder, holding 10.00% of ARQQ shares. Defiance Quantum ETF is the top mutual fund, with 9.28% of its assets in Arqit Quantum shares.

ARQQ Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Arqit Quantum	12.43%	75.73%	11.84%
Sector	Technology Stocks	35.36%	13.13%	51.51%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Penserra capital management	1.38M	10.00%	$30.16M
Kessler investment group	157.57K	1.03%	$2.09M
Ubs group	147.40K	0.96%	$3.23M
Raymond james financial	84.71K	0.66%	$3.28M
Millennium management	789.94K	0.47%	$270.16K
Legal & general group	66.23K	0.43%	$1.45M
Jane street group	65.78K	0.43%	$1.44M
Banque pictet & cie sa	36.00K	0.24%	$477.00K
Van eck associates	26.61K	0.21%	$1.03M
Sbi securities	27.11K	0.18%	$359.19K

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Kessler investment group	157.57K	0.99%	$2.09M
Penserra capital management	1.38M	0.36%	$30.16M
Maso capital partners	2.84K	0.18%	$110.05K
True vision mn	14.85K	0.10%	$196.74K
Virtu financial	6.31K	0.01%	$244.00K
Sbi securities	27.11K	0.01%	$359.19K
Stonehage fleming financial services	11.53K	0.01%	$252.23K
Banque pictet & cie sa	36.00K	0.00%	$477.00K
Cresset asset management	7.33K	0.00%	$283.92K
Tudor investment corp et al	16.76K	0.00%	$649.57K

Top Buyers

Holder	Shares	% Assets	Change
Millennium management	789.94K	0.00%	777.82K
Penserra capital management	1.38M	0.36%	357.41K
Kessler investment group	157.57K	0.99%	109.72K
Ubs group	147.40K	0.00%	70.81K
Alyeska investment group	62.50K	0.00%	62.50K

Top Sellers

Holder	Shares	% Assets	Change
Migdal insurance & financial	-	-	-154.44K
Cowen and company	-	-	-100.00K
Susquehanna group, llp	-	-	-98.40K
Vontobel	-	-	-79.00K
Xtx topco	-	-	-67.88K

New Positions

Holder	Shares	% Assets	Change	Value
Bank of new york mellon	18.98K	0.00%	18.98K	$415.20K
Tudor investment corp et al	16.76K	0.00%	16.76K	$649.57K
True vision mn	14.85K	0.10%	14.85K	$196.74K
Stonehage fleming financial services	11.53K	0.01%	11.53K	$252.23K
Cresset asset management	7.33K	0.00%	7.33K	$283.92K

Sold Out

Holder	Change
Root financial partners	-24.00
Caitong asset management	-69.00
Federation des caisses desjardins du quebec	-97.00
Ameritas advisory services	-100.00
Fifth third bancorp	-225.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Dec 31, 2025	43	-36.76%	1,900,414	2.76%	12	5.92%	23	-43.90%	6	-33.33%
Sep 30, 2025	38	-17.39%	1,453,296	22.93%	11	13.27%	23	-14.81%	5	-28.57%
Jun 30, 2025	49	28.95%	1,202,047	141.85%	9	9.76%	28	-	8	166.67%
Mar 31, 2025	38	5.56%	508,010	58.35%	10	24.98%	28	-6.67%	3	-
Dec 31, 2024	36	176.92%	320,810	611.66%	6	798.81%	30	650.00%	3	-66.67%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
Defiance Quantum ETF	1.45M	9.28%	-2.38K
Global X Cybersecurity ETF	307.51K	1.96%	279.00
Undly L&G Future World UK Eq Idx Fd	45.66K	0.29%	-13.60K
WisdomTree Quantum Computing ETF USD Acc	45.43K	0.29%	-
Mango Growth ETF	30.69K	0.20%	-5.19K
Sydinvest Megatrends Udb A	22.10K	0.15%	-8.00
Cybersecurity Leaders W	20.00K	0.13%	-
Sydinvest Megatrends Akk A	19.95K	0.13%	-
VanEck Quantum Cmptg ETF A USD Acc	20.15K	0.13%	-
Global X Cybersecurity ETF USD Acc	13.63K	0.09%	-

Recent Insider Transactions

Date	Name	Role	Activity	Value
Apr 27, 2026	Lefebvre d'Ovidio Manfredi	-	Sell	-
Apr 28, 2026	Lefebvre d'Ovidio Manfredi	-	Sell	-
Apr 24, 2026	Lefebvre d'Ovidio Manfredi	-	Sell	-
Apr 23, 2026	Lefebvre d'Ovidio Manfredi	-	Sell	-
Apr 22, 2026	Lefebvre d'Ovidio Manfredi	-	Sell	-

Insider Transactions Trends

Date	Buy	Sell
2026 Q2	-	16
2026 Q1	-	-

ARQQ Ownership FAQ

Who owns the most shares of Arqit Quantum?

Arqit Quantum’s largest shareholders are Penserra capital management (1.38M shares, 10.00%), Kessler investment group (157.57K shares, 1.03%), and Ubs group (147.4K shares, 0.96%). Together, they hold 11.99% of Arqit Quantum’s total shares outstanding.

Does Blackrock own Arqit Quantum?

BlackRock is not among the top 10 institutional shareholders of Arqit Quantum.

Who is Arqit Quantum’s biggest shareholder by percentage of total assets invested?

Kessler investment group is Arqit Quantum’s biggest shareholder by percentage of total assets invested, with 0.99% of its assets in 157.57K Arqit Quantum shares, valued at 2.09M$.

Who is the top mutual fund holder of Arqit Quantum shares?

Defiance Quantum ETF is the top mutual fund holder of Arqit Quantum shares, with 9.28% of its total shares outstanding invested in 1.45M Arqit Quantum shares.

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