Lefebvre d'Ovidio Manfredi

SEC source: 0001104659-26-054870 · tm2613491-1_4seq1.xml · derivative · entry 1

Lefebvre d'Ovidio Manfredi · CIK 0001840678 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · Beneficially owned through Heritage Assets SCSp

Disclosed balance after: 26,142.92

Underlying: Ordinary Shares · 91 shares

Expires 2026-09-03

F1 · derivative.exercise_price: On September 19, 2024, Arqit Quantum Inc. (ARQQ) 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 643,533 Business Combination Warrants, which, if exercised in full, would be equivalent to 25,741.32 ARQQ ordinary shares on a post-reverse stock split basis.

F1 · derivative.exercise_date: On September 19, 2024, Arqit Quantum Inc. (ARQQ) 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 643,533 Business Combination Warrants, which, if exercised in full, would be equivalent to 25,741.32 ARQQ ordinary shares on a post-reverse stock split basis.

SEC source: 0001104659-26-052879 · tm2613228-1_4seq1.xml · derivative · entry 1

Lefebvre d'Ovidio Manfredi · CIK 0001840678 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · Beneficially owned through Heritage Assets SCSp

Disclosed balance after: 26,234.12

Underlying: Ordinary Shares · 967 shares

Expires 2026-09-03

F1 · derivative.exercise_price: On September 19, 2024, Arqit Quantum Inc. (ARQQ) 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 655,853 Business Combination Warrants, which, if exercised in full, would be equivalent to 26,234.12 ARQQ ordinary shares on a post-reverse stock split basis.

F1 · derivative.exercise_date: On September 19, 2024, Arqit Quantum Inc. (ARQQ) 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 655,853 Business Combination Warrants, which, if exercised in full, would be equivalent to 26,234.12 ARQQ ordinary shares on a post-reverse stock split basis.

SEC source: 0001104659-26-051483 · tm2612984-1_4seq1.xml · derivative · entry 2

Lefebvre d'Ovidio Manfredi · CIK 0001840678 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · Beneficially owned through Heritage Assets SCSp

Disclosed balance after: 27,200.84

Underlying: Ordinary Shares · 421 shares

Expires 2026-09-03

F1 · derivative.exercise_price: On September 19, 2024, Arqit Quantum Inc. (ARQQ) 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 680,021 Business Combination Warrants, which, if exercised in full, would be equivalent to 27,200.84 ARQQ ordinary shares on a post-reverse stock split basis.

F1 · derivative.exercise_date: On September 19, 2024, Arqit Quantum Inc. (ARQQ) 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 680,021 Business Combination Warrants, which, if exercised in full, would be equivalent to 27,200.84 ARQQ ordinary shares on a post-reverse stock split basis.

SEC source: 0001104659-26-051483 · tm2612984-1_4seq1.xml · derivative · entry 1

Lefebvre d'Ovidio Manfredi · CIK 0001840678 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · Beneficially owned through Heritage Assets SCSp

Disclosed balance after: 27,622.16

Underlying: Ordinary Shares · 41 shares

Expires 2026-09-03

F1 · derivative.exercise_price: On September 19, 2024, Arqit Quantum Inc. (ARQQ) 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 680,021 Business Combination Warrants, which, if exercised in full, would be equivalent to 27,200.84 ARQQ ordinary shares on a post-reverse stock split basis.

F1 · derivative.exercise_date: On September 19, 2024, Arqit Quantum Inc. (ARQQ) 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 680,021 Business Combination Warrants, which, if exercised in full, would be equivalent to 27,200.84 ARQQ ordinary shares on a post-reverse stock split basis.

SEC source: 0001104659-26-049428 · tm2612698-1_4seq1.xml · derivative · entry 2

Lefebvre d'Ovidio Manfredi · CIK 0001840678 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · Beneficially owned through Heritage Assets SCSp

Disclosed balance after: 27,663.28

Underlying: Ordinary Shares · 205 shares

Expires 2026-09-03

F1 · derivative.exercise_price: On September 19, 2024, Arqit Quantum Inc. (ARQQ) 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 691,582 Business Combination Warrants, which, if exercised in full, would be equivalent to 27,663.28 ARQQ ordinary shares on a post-reverse stock split basis.

F1 · derivative.exercise_date: On September 19, 2024, Arqit Quantum Inc. (ARQQ) 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 691,582 Business Combination Warrants, which, if exercised in full, would be equivalent to 27,663.28 ARQQ ordinary shares on a post-reverse stock split basis.

SEC source: 0001104659-26-049428 · tm2612698-1_4seq1.xml · derivative · entry 1

Lefebvre d'Ovidio Manfredi · CIK 0001840678 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · Beneficially owned through Heritage Assets SCSp

Disclosed balance after: 27,868.64

Underlying: Ordinary Shares · 182 shares

Expires 2026-09-03

F1 · derivative.exercise_price: On September 19, 2024, Arqit Quantum Inc. (ARQQ) 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 691,582 Business Combination Warrants, which, if exercised in full, would be equivalent to 27,663.28 ARQQ ordinary shares on a post-reverse stock split basis.

F1 · derivative.exercise_date: On September 19, 2024, Arqit Quantum Inc. (ARQQ) 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 691,582 Business Combination Warrants, which, if exercised in full, would be equivalent to 27,663.28 ARQQ ordinary shares on a post-reverse stock split basis.

SEC source: 0001104659-26-047682 · tm2612473-1_4seq1.xml · derivative · entry 2

Lefebvre d'Ovidio Manfredi · CIK 0001840678 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · Beneficially owned through Heritage Assets SCSp

Disclosed balance after: 28,050.8

Underlying: Ordinary Shares · 381 shares

Expires 2026-09-03

F1 · derivative.exercise_price: On September 19, 2024, Arqit Quantum Inc. (ARQQ) 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 701,270 Business Combination Warrants, which, if exercised in full, would be equivalent to 28,050.8 ARQQ ordinary shares on a post-reverse stock split basis.

F1 · derivative.exercise_date: On September 19, 2024, Arqit Quantum Inc. (ARQQ) 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 701,270 Business Combination Warrants, which, if exercised in full, would be equivalent to 28,050.8 ARQQ ordinary shares on a post-reverse stock split basis.

SEC source: 0001104659-26-047682 · tm2612473-1_4seq1.xml · derivative · entry 1

Lefebvre d'Ovidio Manfredi · CIK 0001840678 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · Beneficially owned through Heritage Assets SCSp

Disclosed balance after: 28,432.2

Underlying: Ordinary Shares · 103 shares

Expires 2026-09-03

F1 · derivative.exercise_price: On September 19, 2024, Arqit Quantum Inc. (ARQQ) 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 701,270 Business Combination Warrants, which, if exercised in full, would be equivalent to 28,050.8 ARQQ ordinary shares on a post-reverse stock split basis.

F1 · derivative.exercise_date: On September 19, 2024, Arqit Quantum Inc. (ARQQ) 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 701,270 Business Combination Warrants, which, if exercised in full, would be equivalent to 28,050.8 ARQQ ordinary shares on a post-reverse stock split basis.

SEC source: 0001104659-26-045995 · tm2612253-1_4seq1.xml · derivative · entry 2

Lefebvre d'Ovidio Manfredi · CIK 0001840678 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · Beneficially owned through Heritage Assets SCSp

Disclosed balance after: 28,535.04

Underlying: Ordinary Shares · 307 shares

Expires 2026-09-03

F1 · derivative.exercise_price: On September 19, 2024, Arqit Quantum Inc. (ARQQ) 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 713,376 Business Combination Warrants, which, if exercised in full, would be equivalent to 28,535.04 ARQQ ordinary shares on a post-reverse stock split basis.

F1 · derivative.exercise_date: On September 19, 2024, Arqit Quantum Inc. (ARQQ) 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 713,376 Business Combination Warrants, which, if exercised in full, would be equivalent to 28,535.04 ARQQ ordinary shares on a post-reverse stock split basis.

SEC source: 0001104659-26-045995 · tm2612253-1_4seq1.xml · derivative · entry 1

Lefebvre d'Ovidio Manfredi · CIK 0001840678 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · Beneficially owned through Heritage Assets SCSp

Disclosed balance after: 28,841.8

Underlying: Ordinary Shares · 151 shares

Expires 2026-09-03

F1 · derivative.exercise_price: On September 19, 2024, Arqit Quantum Inc. (ARQQ) 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 713,376 Business Combination Warrants, which, if exercised in full, would be equivalent to 28,535.04 ARQQ ordinary shares on a post-reverse stock split basis.

F1 · derivative.exercise_date: On September 19, 2024, Arqit Quantum Inc. (ARQQ) 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 713,376 Business Combination Warrants, which, if exercised in full, would be equivalent to 28,535.04 ARQQ ordinary shares on a post-reverse stock split basis.

SEC source: 0001104659-26-044898 · tm2612062-1_4seq1.xml · derivative · entry 2

Lefebvre d'Ovidio Manfredi · CIK 0001840678 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · Beneficially owned through Heritage Assets SCSp

Disclosed balance after: 28,992.8

Underlying: Ordinary Shares · 159 shares

Expires 2026-09-03

F1 · derivative.exercise_price: On September 19, 2024, Arqit Quantum Inc. (ARQQ) 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 724,820 Business Combination Warrants, which, if exercised in full, would be equivalent to 28,992.8 ARQQ ordinary shares on a post-reverse stock split basis.

F1 · derivative.exercise_date: On September 19, 2024, Arqit Quantum Inc. (ARQQ) 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 724,820 Business Combination Warrants, which, if exercised in full, would be equivalent to 28,992.8 ARQQ ordinary shares on a post-reverse stock split basis.

SEC source: 0001104659-26-044898 · tm2612062-1_4seq1.xml · derivative · entry 1

Lefebvre d'Ovidio Manfredi · CIK 0001840678 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · Beneficially owned through Heritage Assets SCSp

Disclosed balance after: 29,151.84

Underlying: Ordinary Shares · 713 shares

Expires 2026-09-03

F1 · derivative.exercise_price: On September 19, 2024, Arqit Quantum Inc. (ARQQ) 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 724,820 Business Combination Warrants, which, if exercised in full, would be equivalent to 28,992.8 ARQQ ordinary shares on a post-reverse stock split basis.

F1 · derivative.exercise_date: On September 19, 2024, Arqit Quantum Inc. (ARQQ) 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 724,820 Business Combination Warrants, which, if exercised in full, would be equivalent to 28,992.8 ARQQ ordinary shares on a post-reverse stock split basis.

SEC source: 0001859690-26-000063 · form4.xml · derivative · entry 9

Lefebvre d'Ovidio Manfredi · CIK 0001840678 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,501

Underlying: Ordinary Shares · 250 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Restricted Stock Units ("RSUs") convert into ARQQ ordinary shares on a one-for-one basis.

F5 · derivative.exercise_date: The RSUs vest quarterly in equal installments on April 1, July 1, and October 1, 2026, and January 1, April 1, July 1, and October 1, 2027.

F5 · derivative.expiration_date: The RSUs vest quarterly in equal installments on April 1, July 1, and October 1, 2026, and January 1, April 1, July 1, and October 1, 2027.

SEC source: 0001859690-26-000063 · form4.xml · derivative · entry 8

Lefebvre d'Ovidio Manfredi · CIK 0001840678 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,912

Underlying: Ordinary Shares · 3,584 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Restricted Stock Units ("RSUs") convert into ARQQ ordinary shares on a one-for-one basis.

F4 · derivative.exercise_date: The RSUs vest quarterly in equal installments on April 1, July 1, and October 1, 2026, and January 1, April 1, and July 1, 2027.

F4 · derivative.expiration_date: The RSUs vest quarterly in equal installments on April 1, July 1, and October 1, 2026, and January 1, April 1, and July 1, 2027.

SEC source: 0001859690-26-000063 · form4.xml · derivative · entry 7

Lefebvre d'Ovidio Manfredi · CIK 0001840678 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 50

Underlying: Ordinary Shares · 50 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Restricted Stock Units ("RSUs") convert into ARQQ ordinary shares on a one-for-one basis.

F3 · derivative.exercise_date: The RSUs vest quarterly in equal installments on April 1, and July 1, 2026.

F3 · derivative.expiration_date: The RSUs vest quarterly in equal installments on April 1, and July 1, 2026.

SEC source: 0001859690-26-000063 · form4.xml · derivative · entry 6

Lefebvre d'Ovidio Manfredi · CIK 0001840678 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,499

Underlying: Ordinary Shares · 501 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Restricted Stock Units ("RSUs") convert into ARQQ ordinary shares on a one-for-one basis.

F2 · derivative.exercise_date: 501 RSUs vested on April 1, 2026 and the remaining 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.

F2 · derivative.expiration_date: 501 RSUs vested on April 1, 2026 and the remaining 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.

SEC source: 0001859690-26-000063 · form4.xml · nonDerivative · entry 4

Lefebvre d'Ovidio Manfredi · CIK 0001840678 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 41,626

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Restricted Stock Units ("RSUs") convert into ARQQ ordinary shares on a one-for-one basis.

SEC source: 0001859690-26-000063 · form4.xml · nonDerivative · entry 3

Lefebvre d'Ovidio Manfredi · CIK 0001840678 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 41,376

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Restricted Stock Units ("RSUs") convert into ARQQ ordinary shares on a one-for-one basis.

SEC source: 0001859690-26-000063 · form4.xml · nonDerivative · entry 2

Lefebvre d'Ovidio Manfredi · CIK 0001840678 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 37,792

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Restricted Stock Units ("RSUs") convert into ARQQ ordinary shares on a one-for-one basis.

SEC source: 0001859690-26-000063 · form4.xml · nonDerivative · entry 1

Lefebvre d'Ovidio Manfredi · CIK 0001840678 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 37,291

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Restricted Stock Units ("RSUs") convert into ARQQ ordinary shares on a one-for-one basis.