TickerGuard
Buy Day today: Neutral (52) Mixed market breadth · major macro event coming up
ARQQ

Arqit Quantum Inc.

Technology · Software - Infrastructure

24.10$ -0.2% vs. previous close Closing price · As of: Sep 30, 2026

Ownership

Ownership Structure

Who owns Arqit Quantum Inc. (ARQQ)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 28.9% of the shares are freely tradable; institutional investors hold 27.0%.

Institutional ownership ?Share of the stock held by institutional investors (funds, banks, insurers) according to regulatory filings. 27.0%
Insiders ?Share of the stock held by the executives, founders and major shareholders of the company itself. 69.3%
Float ?Share of stock freely tradable on the market — not locked up in the hands of founders, insiders, or major shareholders. 28.9%
Short % of float ?Shares sold short as a percentage of the freely tradable float — high values signal many bets on falling prices. 20.5%
Shares Outstanding ?Total number of shares issued. Price times share count gives market cap. 17Mio.

Largest Shareholders

Institutions

Institutions ARQQ
Name Stake (%) Shares Change (%) Date
Penserra Capital Management, LLC 8.35 1,452,311 +5.3 03/31/2026
Defiance ETFs, LLC 8.35 1,452,311 +5.3 03/31/2026
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 1.86 324,309 +7.5 03/31/2026
NATIONAL BANK OF CANADA /FI/ 1.22 212,000 +19,296.2 06/30/2026
Kessler Investment Group, LLC 0.88 153,105 -2.8 06/30/2026
UBS Group AG 0.49 85,435 -42.0 03/31/2026
Millennium Management LLC 0.45 78,717 +45.7 06/30/2026

Funds

Funds ARQQ
Name Stake (%) Shares Change (%) Date
Undly L&G Future World UK Eq Idx Fd 1.66 250,174 +447.9 06/30/2026
Global X Cybersecurity ETF 1.48 223,152 +3.6 08/31/2026
VanEck Quantum Cmptg ETF A USD Acc 0.36 54,694 +0.3 08/31/2026

Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.

Insider holdings

Insider holdings ARQQ
Person Role Shares Value As of Type
Lefebvre d'Ovidio Manfredi Director 8,942,448 215,512,997 $ Sep 22, 2026 indirect

Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.

Insiders

Insider Transactions

Insider Transactions
Date Person Role Type Shares Price Value
Sep 22, 2026 Lefebvre d'Ovidio Manfredi Director Other 4,600,000 2.50 11,500,000

Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →

Data as of: September 30, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)

Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.

Was this page helpful to you?