Arqit Quantum Inc. insider trading

Every open-market purchase and sale by Arqit Quantum Inc.'s officers, directors and largest shareholders since November 4, 2021, and what the share price did next.

Insider purchases, 5 years $0 0 trades by 0 insiders Insider sales, 5 years $2.9M 35 trades by 9 insiders

No insider has bought shares on the open market in five years.

Insider purchase Insider sale Marker size reflects trade value. Weekly closes adjusted for splits; may be delayed.

Arqit Quantum Inc. insider open-market trades
Date	Insider	Trade	Shares	Price	Value	1M after	3M after	6M after

From insiders' Form 4 filings with the SEC: open-market purchases and sales only (awards, option exercises and shares withheld for tax are excluded), combined to one line per insider per day. "Plan" marks trades the filing says were made under a pre-set Rule 10b5-1 trading plan, which are scheduled in advance. Price changes run from the close on the trade date; hover a figure for the change relative to the S&P 500. Past moves don't predict future ones.

Does following Arqit Quantum Inc.’s insiders pay?

From April 3, 2026 to October 15, 2026, 9 insiders reported 0 open-market purchases and 25 sales not made under a pre-set plan in Arqit Quantum Inc.

Arqit Quantum Inc.: each insider's record
Insider	Role	12 months after their purchases	Beat the S&P 500	Sales	12 months after their sales	Latest report
Leaver Andrew	Chief Executive Officer	—	—	6	—	October 15, 2026
Willcocks Patrick	General Counsel	—	—	6	—	October 8, 2026
Feenan Paul	Chief Revenue Officer	—	—	5	—	October 8, 2026
Nilan Nicholas William	General Manager-US	—	—	3	—	October 8, 2026
Bers Jennifer	Chief Revenue Officer	—	—	1	—	June 24, 2026
Lefebvre D'ovidio Manfredi	Director	—	—	1	—	July 2, 2026
Pointon Nicholas	Chief Financial Officer	—	—	1	—	April 3, 2026
Ritchie Garth	Director	—	—	1	—	July 6, 2026
Wilder Ben Simon	Chief Operating Officer	—	—	1	—	July 6, 2026

Moves are the shares’ return including dividends minus the S&P 500’s, from the close on the first trading day after each report; the number of trades with a finished 12-month window is in brackets. Green means the trade went the insider’s way (a purchase ahead of the index, a sale followed by the shares trailing it). A trade reported both by a director or officer and by a fund or company they are linked to counts once here, under the person. Purchases count only where the share price actually traded was at least $5. These figures describe what the shares did, not why anyone traded. Insiders across all companies.

When several insiders traded Arqit Quantum Inc.

Months when 2 or more insiders became net buyers, or 3 or more net sellers, of Arqit Quantum Inc. in reports dated in the 91 days before the month end, and how the stock did against the S&P 500 from that month end. After 1 selling crowd, +15.0%. One company's history is too short to judge by; the test across every company is the better guide.

Month	Crowd	3 months on, vs S&P 500	6 months	12 months
April 30, 2026	4 selling	+15.1%	+15.0%	not yet

Colours show whether the crowd was right: green when buyers were followed by a rise above the index, or sellers by a fall below it. Total returns from the month end; past patterns are not a forecast.

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