Company · Ownership research

Arqit Quantum Inc. ARQQ

CIK 0001859690 · CUSIP G0567U127

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP G0567U127 (ARQQ), not CUSIP G0567U907 (ARQQ), CUSIP G0567U957 (ARQQ), CUSIP G0567U101 (ARQQ), and does not merge CUSIPs.

This page lists the top 20 of 32 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1,000 to dollars.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	UBS Group AG CIK 1610520 · View history	$3.30M 238,394 shares	0.00%	+151.66K(+174.90%)Added	SEC filing ↗ May 13, 2025	▾
02	Virtu Financial LLC CIK 1533964 · View history	$446.00K 32,208 shares	0.02%	+26.25K(+440.70%)Added	SEC filing ↗ May 12, 2025	▾
03	SBI Securities Co., Ltd. CIK 1851815 · View history	$431.67K 31,145 shares	0.01%	+7.03K(+29.20%)Added	SEC filing ↗ May 2, 2025	▾
04	HRT FINANCIAL LP CIK 1475597 · View history	$406.00K 29,361 shares	0.00%	+29.36KNew	SEC filing ↗ May 15, 2025	▾
05	MORGAN STANLEY CIK 895421 · View history	$341.73K 24,656 shares	0.00%	+15.69K(+175.00%)Added	SEC filing ↗ May 15, 2025	▾
06	CITADEL ADVISORS LLC CIK 1423053 · View history	$305.52K 22,043 shares	0.00%	+16.92K(+329.90%)Added	SEC filing ↗ May 15, 2025	▾
07	RAYMOND JAMES FINANCIAL INC CIK 720005 · View history	$285.17K 20,575 shares	0.00%	+20.57KNew	SEC filing ↗ May 13, 2025	▾
08	JANE STREET GROUP, LLC CIK 1595888 · Amended · View history	$284.45K 20,523 shares	0.00%	-3.46K(-14.40%)Reduced	SEC filing ↗ May 19, 2025	▾
09	ROYAL BANK OF CANADA CIK 1000275 · Amended · View history	$284.00K 20,550 shares	0.00%	+14.19K(+222.90%)Added	SEC filing ↗ May 15, 2025	▾
10	Veracity Capital LLC CIK 1811005 · View history	$171.19K 12,351 shares	0.07%	+1.55K(+14.30%)Added	SEC filing ↗ Apr 10, 2025	▾
11	ENVESTNET ASSET MANAGEMENT INC CIK 1407543 · View history	$171.19K 12,351 shares	0.00%	+1.55K(+14.30%)Added	SEC filing ↗ Apr 29, 2025	▾
12	HUSSMAN STRATEGIC ADVISORS, INC. CIK 1179475 · View history	$145.53K 10,500 shares	0.04%	+10.50KNew	SEC filing ↗ May 5, 2025	▾
13	BlackRock, Inc. CIK 2012383 · View history	$71.45K 5,155 shares	0.00%	+5.16KNew	SEC filing ↗ May 2, 2025	▾
14	WOLVERINE ASSET MANAGEMENT LLC CIK 1279891 · View history	$60.35K 4,354 shares	0.00%	+84(+2.00%)Added	SEC filing ↗ May 12, 2025	▾
15	Zurcher Kantonalbank (Zurich Cantonalbank) CIK 1368163 · View history	$39.86K 2,876 shares	0.00%	+2.88KNew	SEC filing ↗ May 7, 2025	▾
16	OSAIC HOLDINGS, INC. CIK 1677044 · View history	$31.48K 2,271 shares	0.00%	+340(+17.60%)Added	SEC filing ↗ May 12, 2025	▾
17	SIMPLEX TRADING, LLC CIK 1488542 · View history	$20.00K 1,482 shares	0.00%	+1.48KNew	SEC filing ↗ May 12, 2025	▾
18	GROUP ONE TRADING LLC CIK 932540 · View history	$15.62K 1,127 shares	0.00%	+1.13KNew	SEC filing ↗ May 14, 2025	▾
19	BNP PARIBAS FINANCIAL MARKETS CIK 1166588 · View history	$14.71K 1,061 shares	0.00%	+1.06KNew	SEC filing ↗ May 14, 2025	▾
20	ALBION FINANCIAL GROUP /UT CIK 1054677 · View history	$13.86K 1,000 shares	0.00%	+1.00KNew	SEC filing ↗ Apr 25, 2025	▾

Showing 20 / 32 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

Cancelled or null records excluded

Disclosed shares

496,588

Not deduplicated across managers

Disclosed value

$6.88M

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

Arqit Quantum Inc. · Q1 2025

Explore all 32 reporting institutions.

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Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.