Arqit Quantum Inc. (ARQQ)

XNASNet insider selling (90d)Watch ARQQ

$20.58-$0.88 (-4.10%) Today

Latest ARQQ Insider Trades

D'Ovidio Manfredi Lefebvre - Director
Open-market sale$481
Jul 9, 2026
D'Ovidio Manfredi Lefebvre

About Arqit Quantum Inc. (ARQQ)

Arqit Quantum Inc is a cybersecurity company that has pioneered a symmetric key agreement technology that makes the communications links of any networked device or data at rest secure against current and future forms of cyber attack - even an attack from a quantum computer. The company delivers its symmetric key agreement technology via its product SKA-Platform. The firm operates in one segment, that is, the provision of cybersecurity services. The company operates and generates its revenue from UK.

Employees: 91
Listed: 2021
Exchange: XNAS

https://www.arqit.uk SEC filings for ARQQ on EDGAR

90-Day SEC Filing Activity

Form 4 transaction type	Transactions	Shares	Total value
Open-market sale	39	89,581	$2.33M
Grant or award	6	32,294
Option exercise	58	480,598

ARQQ Insider Transactions (Form 4)

104

61 Form 4 filings on record, the earliest from Apr 3, 2026, newest first. Filing history page 2 of 3.

Date	Insider	Transaction	Security	Shares	Price	Value
Jun 5, 2026	Garth Ritchie - Director	Option exercise	Ordinary Shares	73,562

Recent ARQQ Form 144 Notices of Proposed Sale

A Form 144 is notice of an INTENDED sale, not a completed one. It often precedes the Form 4 that reports the trade actually happening.

Filed	Filer	Relationship	Shares	Market value	Notice
Jul 2, 2026	-	-	-	-	View on EDGAR
Jul 2, 2026	-	-	-

ARQQ Insider Trading - FAQ

What is the latest insider trade for ARQQ?

Arqit Quantum Inc. (ARQQ) had 34 insider filings in the last 90 days, with the most recent on 2026-07-21. The full record for ARQQ runs to 61 Form 4 filings, the earliest from 2026-04-03. InsiderAlpha tracks every Form 4, Form 144, and 8-K filing in real time.

How many insiders are buying ARQQ stock?

No insider purchases of ARQQ were filed in the last 90 days.

How many insiders are selling ARQQ stock?

39 insider sales of ARQQ were filed in the last 90 days, totaling $2.33M.

Where can I see ARQQ SEC filings (Form 4, 10-K, 10-Q, 8-K)?

This page tracks ARQQ Form 4 insider transactions, Form 144 sale notices, and 8-K material event disclosures in one timeline. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.

How can I follow ARQQ insider buys?

Create a free InsiderAlpha account and press Watch on this page to add ARQQ to your watchlist. A free account also opens the full scored daily plan with every past day and 3 months of price history. No card is required. Sign up at https://insideralpha.ai/register.

More Companies with Insider Activity

Recent Insider Filings

Every Form 4 below links to the original document on SEC EDGAR, so the numbers on this page can be checked against the filing they came from.

Jul 21, 2026 - Carlo Calabria view on EDGAR
Jul 21, 2026 - D'Ovidio Manfredi Lefebvre view on EDGAR
Jul 21, 2026 - Garth Ritchie view on EDGAR
Jul 17, 2026 - Carlo Calabria view on EDGAR
Jul 17, 2026 - Garth Ritchie view on EDGAR
Jul 17, 2026 - D'Ovidio Manfredi Lefebvre view on EDGAR
Jul 13, 2026 - D'Ovidio Manfredi Lefebvre view on EDGAR
Jul 9, 2026 - D'Ovidio Manfredi Lefebvre view on EDGAR
Jul 7, 2026 - D'Ovidio Manfredi Lefebvre view on EDGAR

Learn More

What is SEC Form 4?: The filing insiders must submit within two business days of a trade, and how to read its transaction codes.
Insider activity by sector: Where buying and selling is concentrated across the eleven GICS sectors.
Every recent Form 4: The full market-wide feed, updated as filings arrive from SEC EDGAR.

Track ARQQ insider activity as it files

Real-time Form 4 alerts, AI-scored daily trade ideas and 10b5-1 plan flags.