Arqit Quantum Inc.

ARQQ· Nasdaq

Since Oct 5, 2025

Transactions: 16
Purchases: 0
Sales: 16
Purchase value: $0.00
Sale value: $2.51M

Values are shares multiplied by reported price when both were supplied, each trade counted once however many filers reported it.

Willcocks PatrickGeneral Counsel

Filed Jul 6, 2026Period of report Jul 1, 20260001859690-26-000137

Transaction	Security	Shares	Price	ValueValue (shares × price)	Held after	Ownership
SaleJul 2, 2026	Ordinary Shares	2,009	$25.2026	$50.63K	9,462	Direct

Filing footnotes · 5

F1The Restricted Share Units ("RSUs") convert into ARQQ ordinary shares on a one-for-one basis.
F2The RSUs vest quarterly in equal installments on July 1 and October 1, 2026, and January 1, April 1, July 1, and October 1, 2027.
F3The RSUs vested on July 1, 2026.
F4The RSUs vest quarterly in equal installments on July 1 and October 1, 2026, and January 1, April 1, and July 1, 2027.
F5The RSUs vest quarterly in equal installments on July 1, and October 1, 2026, and January 1, April 1, July 1, and October 1, 2027, and January 1, April 1, July 1, and October 1, 2028.

Open on SEC EDGAR

Ritchie GarthDirector

Filed Jul 6, 2026Period of report Jul 1, 20260001859690-26-000135

Transaction	Security	Shares	Price	ValueValue (shares × price)	Held after	Ownership
SaleJul 2, 2026	Ordinary Shares	439	$25.2026	$11.06K	104,609	Direct

Leaver AndrewChief Executive Officer

Filed Jul 6, 2026Period of report Jul 1, 20260001859690-26-000133

Transaction	Security	Shares	Price	ValueValue (shares × price)	Held after	Ownership
SaleJul 2, 2026	Ordinary Shares	9,893	$25.2026	$249.33K	51,483	Direct

Wilder Ben SimonChief Operating Officer

Filed Jul 6, 2026Period of report Jul 1, 20260001859690-26-000131

Transaction	Security	Shares	Price	ValueValue (shares × price)	Held after	Ownership
SaleJul 2, 2026	Ordinary Shares	769	$25.2026	$19.38K	3,582.47	Direct

Feenan PaulChief Revenue Officer

Filed Jul 6, 2026Period of report Jul 1, 20260001859690-26-000128

Transaction	Security	Shares	Price	ValueValue (shares × price)	Held after	Ownership
SaleJul 2, 2026	Ordinary Shares	1,834	$25.2026	$46.22K	19,351	Direct

Lefebvre d'Ovidio ManfrediDirector

Filed Jul 2, 2026Period of report Jun 30, 20260001104659-26-080395

Transaction	Security	Shares	Price	ValueValue (shares × price)	Held after	Ownership
SaleJul 1, 2026	Ordinary Shares^F2	32,422	$30.24	$980.44K	4,342,448	Indirect

Willcocks PatrickGeneral Counsel

Filed Jul 2, 2026Period of report Jun 30, 20260001859690-26-000125

Transaction	Security	Shares	Price	ValueValue (shares × price)	Held after	Ownership
SaleJun 30, 2026	Ordinary Shares	4,000	$29.48	$117.92K	7,916	Direct

Bers JenniferChief Revenue Officer

Filed Jun 24, 2026Period of report Jun 22, 20260001859690-26-000122

Transaction	Security	Shares	Price	ValueValue (shares × price)	Held after	Ownership
SaleJun 22, 2026	Ordinary Shares	8,288	$21.42	$177.53K	6,712	Direct

Pointon NicholasChief Financial Officer

Filed May 20, 2026Period of report Apr 20, 20260001859690-26-000085

Transaction	Security	Shares	Price	ValueValue (shares × price)	Held after	Ownership
SaleApr 20, 2026	Ordinary Shares	435	$15.87	$6.90K	16,238	Direct

Leaver AndrewChief Executive Officer

Filed Apr 7, 2026Period of report Apr 6, 20260001859690-26-000067

Transaction	Security	Shares	Price	ValueValue (shares × price)	Held after	Ownership
SaleApr 6, 2026	Ordinary Shares	7,595	$13.5117	$102.62K	45,751	Direct

Feenan PaulChief Revenue Officer

Filed Apr 3, 2026Period of report Apr 1, 20260001859690-26-000064

Transaction	Security	Shares	Price	ValueValue (shares × price)	Held after	Ownership
SaleApr 2, 2026	Ordinary Shares	1,632	$13.32	$21.74K	17,963	Direct

Pointon NicholasChief Financial Officer

Filed Apr 3, 2026Period of report Apr 1, 20260001859690-26-000062

Transaction	Security	Shares	Price	ValueValue (shares × price)	Held after	Ownership
SaleApr 2, 2026	Ordinary Shares	1,709	$13.32	$22.76K	13,607	Direct

Ritchie GarthDirector

Filed Apr 3, 2026Period of report Apr 1, 20260001859690-26-000061

Transaction	Security	Shares	Price	ValueValue (shares × price)	Held after	Ownership
SaleApr 2, 2026	Ordinary Shares	512	$13.2463	$6.78K	28,800	Direct

Wilder Ben SimonChief Operating Officer

Filed Apr 3, 2026Period of report Apr 1, 20260001859690-26-000060

Transaction	Security	Shares	Price	ValueValue (shares × price)	Held after	Ownership
SaleApr 2, 2026	Ordinary Shares	683	$13.3112	$9.09K	3,018.47	Direct

Willcocks PatrickGeneral Counsel

Filed Apr 3, 2026Period of report Apr 1, 20260001859690-26-000059

Transaction	Security	Shares	Price	ValueValue (shares × price)	Held after	Ownership
SaleApr 2, 2026	Ordinary Shares	1,790	$13.3233	$23.85K	11,916	Direct

P and S transaction codes only. Grants, gifts, option exercises, tax withholding, and Form 144 notices are not counted as purchases or sales. A row whose filed price fails a plausibility check, or that is not common stock, is listed but left out of the values; a trade reported by several filers is counted once.

Filing footnotes · 5

F1The price reported is a weighted average price. The Ordinary Shares were sold in multiple transactions at prices ranging from $30.00 to $30.29 per Ordinary Share, inclusive. The reporting person undertakes to provide to Arqit Quantum Inc. (the "Issuer") (ARQQ), any security holder of the Issuer or the staff of the Securities and Exchange Commission (the "Commission"), upon request, full information regarding the number of Ordinary Shares sold at each separate price within the range set forth in this footnote.
F2The price reported is a weighted average price. The Ordinary Shares were sold in multiple transactions at prices ranging from $30.00 to $30.93 per Ordinary Share, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Commission, upon request, full information regarding the number of Ordinary Shares sold at each separate price within the range set forth in this footnote.
F3On September 19, 2024, the Issuer announced the implementation of a reverse stock split whereby every 25 outstanding ARQQ ordinary shares were consolidated into one ordinary share, par value $0.0025 per share. Each Business Combination Warrant has an exercise price of $11.50 and can be exercised at any time, at the holder's election, to purchase 0.04 of an ARQQ ordinary share on a post-reverse stock split basis, and cannot be exercised for fractional shares. Accordingly, on a post-reverse stock split basis holders of Business Combination Warrants are required to exercise at least 25 Business Combination Warrants in order to receive one whole ARQQ ordinary share at an aggregate exercise price of $287.50 per whole ARQQ ordinary share. The reporting person beneficially owns 369,792 Business Combination Warrants, which, if exercised in full, would be equivalent to 14,791.68 ARQQ ordinary shares on a post-reverse stock split basis.
F4The price reported is a weighted average price. The Business Combination Warrants were sold in multiple transactions at prices ranging from $1.22 to $1.79 per Business Combination Warrant, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Commission, upon request, full information regarding the number of Business Combination Warrants sold at each separate price within the range set forth in this footnote.
F5The price reported is a weighted average price. The Business Combination Warrants were sold in multiple transactions at prices ranging from $1.35 to $1.79 per Business Combination Warrant, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Commission, upon request, full information regarding the number of Business Combination Warrants sold at each separate price within the range set forth in this footnote.