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 38 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	$6.36M 264,451 shares	0.00%	-258.42K(-49.40%)Reduced	SEC filing ↗ Nov 10, 2026	▾
02	Kessler Investment Group, LLC CIK 1525947 · View history	$3.33M 138,545 shares	1.61%	-14.56K(-9.50%)Reduced	SEC filing ↗ Oct 8, 2026	▾
03	RAYMOND JAMES FINANCIAL INC CIK 720005 · View history	$2.86M 118,667 shares	0.00%	+23.42K(+24.60%)Added	SEC filing ↗ Nov 12, 2026	▾
04	BANQUE PICTET & CIE SA CIK 1535602 · View history	$866.16K 36,000 shares	0.01%	0(0.00%)Unchanged	SEC filing ↗ Oct 16, 2026	▾
05	SBI Securities Co., Ltd. CIK 1851815 · View history	$685.90K 28,508 shares	0.02%	+2.37K(+9.10%)Added	SEC filing ↗ Oct 22, 2026	▾
06	Cambridge Investment Research Advisors, Inc. CIK 1419186 · View history	$592.00K 24,607 shares	0.00%	+24.61KNew	SEC filing ↗ Nov 2, 2026	▾
07	STATE STREET CORP CIK 93751 · View history	$574.77K 23,889 shares	0.00%	+23.89KNew	SEC filing ↗ Nov 12, 2026	▾
08	LPL Financial LLC CIK 1403438 · View history	$550.11K 22,864 shares	0.00%	+5.75K(+33.60%)Added	SEC filing ↗ Nov 6, 2026	▾
09	GROUP ONE TRADING LLC CIK 932540 · View history	$531.49K 22,090 shares	0.02%	+9.41K(+74.20%)Added	SEC filing ↗ Nov 10, 2026	▾
10	Zurcher Kantonalbank (Zurich Cantonalbank) CIK 1368163 · View history	$531.08K 22,073 shares	0.00%	+777(+3.60%)Added	SEC filing ↗ Nov 10, 2026	▾
11	CITIGROUP INC CIK 831001 · View history	$417.51K 17,353 shares	0.00%	+2.78K(+19.10%)Added	SEC filing ↗ Nov 4, 2026	▾
12	Squarepoint Ops LLC CIK 1642575 · View history	$266.01K 11,056 shares	0.00%	+11.06KNew	SEC filing ↗ Nov 9, 2026	▾
13	Y.D. More Investments Ltd CIK 1870364 · View history	$252.56K 10,497 shares	0.01%	+1.62K(+18.20%)Added	SEC filing ↗ Nov 2, 2026	▾
14	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$223.61K 9,294 shares	0.00%	0(0.00%)Unchanged	SEC filing ↗ Nov 6, 2026	▾
15	McGuire Investment Group, LLC CIK 1756959 · View history	$220.10K 9,148 shares	0.02%	+2.22K(+32.00%)Added	SEC filing ↗ Oct 23, 2026	▾
16	BNP PARIBAS FINANCIAL MARKETS CIK 1166588 · View history	$181.41K 7,540 shares	0.00%	+6.98K(+1,239.30%)Added	SEC filing ↗ Nov 12, 2026	▾
17	Mirae Asset Global Investments Co., Ltd. CIK 1569395 · Amended · View history	$117.27K 4,874 shares	0.00%	+1.43K(+41.50%)Added	SEC filing ↗ Oct 29, 2026	▾
18	Leonteq Securities AG CIK 1535950 · View history	$97.92K 4,070 shares	0.01%	+2.57K(+171.30%)Added	SEC filing ↗ Oct 29, 2026	▾
19	OSAIC HOLDINGS, INC. CIK 1677044 · View history	$80.03K 3,323 shares	0.00%	+108(+3.40%)Added	SEC filing ↗ Nov 12, 2026	▾
20	US BANCORP \DE\ CIK 36104 · View history	$60.15K 2,500 shares	0.00%	+2.46K(+7,042.90%)Added	SEC filing ↗ Nov 5, 2026	▾

Showing 20 / 38 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

Cancelled or null records excluded

Disclosed shares

789,891

Not deduplicated across managers

Disclosed value

$19.01M

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. · Q3 2026

Explore all 38 reporting institutions.

This page includes 20 of 38 reporting institutions. Log in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.

Download CSV
Earlier quarters
Advanced screening & filtering
API & AI access

Already have an account?

＋ New accounts get free API credits to explore data beyond ownership filings.

For AI agents & developers

The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. This page lists 20 of 38 reporting institutions; totals use the complete disclosed data.

Without an account: the last 3 years, with the row caps stated on the page. A free account opens all history on file on these pages and the CSV of what a page shows. Rows beyond the caps and bulk retrieval go through the authenticated API / MCP / CLI.

MCP  https://api.akkrudata.ai/mcp

akkru_institutional_holdings
{"action":"holders","cusip":"G0567U127","quarter":"2026Q3","type":"positions","page_size":100}

Connect to MCP with OAuth and follow the returned pagination. Credits and usage limits depend on the account.

MCP endpoint: https://api.akkrudata.ai/mcp
API / MCP / CLI documentation: /documents
llms.txt: /llms.txt

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.