Tapewire

Nasdaq · USD

ARQQ

Arqit Quantum Inc.

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Tapewire entity
5853
SEC CIK
0001859690
Parsed reports
108

Last 12 months

Inside the activity.

0 purchase rows · 42 sale rows

Disclosed non-derivative P/S rows, by transaction month. Includes amendments and private transactions.
Monthly counts
MonthPurchasesSales
Nov 202500
Dec 202500
Jan 202600
Feb 202600
Mar 202600
Apr 202607
May 202600
Jun 202603
Jul 202606
Aug 202600
Sep 202600
Oct 2026026

Latest available

Insider transactions

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateOwner / reported roleActivity / securityShares / unitsReported priceReported valueDetails
October 05, 2026 Filed Oct 7, 2026 23:44 UTC Exercise / conversionOrdinary Shares 16 $0.00 $0.00
Disclosure

SEC source: 0001859690-26-000180 · form4.xml · nonDerivative · entry 1

Ritchie Garth · CIK 0001840684 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 105,847

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: The Restricted Share Units ("RSUs") convert into ARQQ ordinary shares on a one-for-one basis.

Read SEC document
October 05, 2026 Filed Oct 7, 2026 23:42 UTC
Wilder Ben SimonChief Operating Officer
Exercise / conversionRestricted Share Units · Derivative 166 $0.00 $0.00
Disclosure

SEC source: 0001859690-26-000179 · form4.xml · derivative · entry 5

Wilder Ben Simon · CIK 0002101275 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,000

Underlying: Ordinary Shares · 166 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.

F3 · derivative.exercise_price: The RSUs vest quarterly in equal installments on 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.

F3 · derivative.exercise_date: The RSUs vest quarterly in equal installments on 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.

F3 · derivative.expiration_date: The RSUs vest quarterly in equal installments on 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.

Read SEC document
October 05, 2026 Filed Oct 7, 2026 23:42 UTC
Wilder Ben SimonChief Operating Officer
Exercise / conversionRestricted Share Units · Derivative 277 $0.00 $0.00
Disclosure

SEC source: 0001859690-26-000179 · form4.xml · derivative · entry 4

Wilder Ben Simon · CIK 0002101275 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,332

Underlying: Ordinary Shares · 277 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.

F2 · derivative.exercise_price: The RSUs vest quarterly in equal installments on October 1, 2026, and January 1, April 1, July 1, and October 1, 2027.

F2 · derivative.exercise_date: The RSUs vest quarterly in equal installments on October 1, 2026, and January 1, April 1, July 1, and October 1, 2027.

F2 · derivative.expiration_date: The RSUs vest quarterly in equal installments on October 1, 2026, and January 1, April 1, July 1, and October 1, 2027.

Read SEC document
October 05, 2026 Filed Oct 7, 2026 23:42 UTC
Wilder Ben SimonChief Operating Officer
SaleOrdinary Shares 233 $23.78 $5,541.84
Disclosure

SEC source: 0001859690-26-000179 · form4.xml · nonDerivative · entry 3

Wilder Ben Simon · CIK 0002101275 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,461.47

Read SEC document
October 05, 2026 Filed Oct 7, 2026 23:42 UTC
Wilder Ben SimonChief Operating Officer
Exercise / conversionOrdinary Shares 166 $0.00 $0.00
Disclosure

SEC source: 0001859690-26-000179 · form4.xml · nonDerivative · entry 2

Wilder Ben Simon · CIK 0002101275 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,694.47

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: The Restricted Share Units ("RSUs") convert into ARQQ ordinary shares on a one-for-one basis.

Read SEC document
October 05, 2026 Filed Oct 7, 2026 23:42 UTC
Wilder Ben SimonChief Operating Officer
Exercise / conversionOrdinary Shares 277 $0.00 $0.00
Disclosure

SEC source: 0001859690-26-000179 · form4.xml · nonDerivative · entry 1

Wilder Ben Simon · CIK 0002101275 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,528.47

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: The Restricted Share Units ("RSUs") convert into ARQQ ordinary shares on a one-for-one basis.

Read SEC document
October 05, 2026 Filed Oct 7, 2026 23:40 UTC
Willcocks PatrickGeneral Counsel
Exercise / conversionRestricted Share Units · Derivative 305 $0.00 $0.00
Disclosure

SEC source: 0001859690-26-000178 · form4.xml · derivative · entry 7

Willcocks Patrick · CIK 0001967211 · General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,324

Underlying: Ordinary Shares · 305 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.

F4 · derivative.exercise_price: The RSUs vest quarterly in equal installments on 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.

F4 · derivative.exercise_date: The RSUs vest quarterly in equal installments on 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.

F4 · derivative.expiration_date: The RSUs vest quarterly in equal installments on 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.

Read SEC document
October 05, 2026 Filed Oct 7, 2026 23:40 UTC
Willcocks PatrickGeneral Counsel
Exercise / conversionRestricted Share Units · Derivative 149 $0.00 $0.00
Disclosure

SEC source: 0001859690-26-000178 · form4.xml · derivative · entry 6

Willcocks Patrick · CIK 0001967211 · General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,336

Underlying: Ordinary Shares · 149 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.

F3 · derivative.exercise_price: The RSUs vest quarterly in equal installments on October 1, 2026, and January 1, April 1, and July 1, 2027.

F3 · derivative.exercise_date: The RSUs vest quarterly in equal installments on October 1, 2026, and January 1, April 1, and July 1, 2027.

F3 · derivative.expiration_date: The RSUs vest quarterly in equal installments on October 1, 2026, and January 1, April 1, and July 1, 2027.

Read SEC document
October 05, 2026 Filed Oct 7, 2026 23:40 UTC
Willcocks PatrickGeneral Counsel
Exercise / conversionRestricted Share Units · Derivative 694 $0.00 $0.00
Disclosure

SEC source: 0001859690-26-000178 · form4.xml · derivative · entry 5

Willcocks Patrick · CIK 0001967211 · General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,330

Underlying: Ordinary Shares · 694 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.

F2 · derivative.exercise_price: The RSUs vest quarterly in equal installments on October 1, 2026, and January 1, April 1, July 1, and October 1, 2027.

F2 · derivative.exercise_date: The RSUs vest quarterly in equal installments on October 1, 2026, and January 1, April 1, July 1, and October 1, 2027.

F2 · derivative.expiration_date: The RSUs vest quarterly in equal installments on October 1, 2026, and January 1, April 1, July 1, and October 1, 2027.

Read SEC document
October 05, 2026 Filed Oct 7, 2026 23:40 UTC
Willcocks PatrickGeneral Counsel
SaleOrdinary Shares 588 $23.78 $13,985.40
Disclosure

SEC source: 0001859690-26-000178 · form4.xml · nonDerivative · entry 4

Willcocks Patrick · CIK 0001967211 · General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,764

Read SEC document
October 05, 2026 Filed Oct 7, 2026 23:40 UTC
Willcocks PatrickGeneral Counsel
Exercise / conversionOrdinary Shares 305 $0.00 $0.00
Disclosure

SEC source: 0001859690-26-000178 · form4.xml · nonDerivative · entry 3

Willcocks Patrick · CIK 0001967211 · General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,352

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: The Restricted Share Units ("RSUs") convert into ARQQ ordinary shares on a one-for-one basis.

Read SEC document
October 05, 2026 Filed Oct 7, 2026 23:40 UTC
Willcocks PatrickGeneral Counsel
Exercise / conversionOrdinary Shares 149 $0.00 $0.00
Disclosure

SEC source: 0001859690-26-000178 · form4.xml · nonDerivative · entry 2

Willcocks Patrick · CIK 0001967211 · General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,047

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: The Restricted Share Units ("RSUs") convert into ARQQ ordinary shares on a one-for-one basis.

Read SEC document
October 05, 2026 Filed Oct 7, 2026 23:40 UTC
Willcocks PatrickGeneral Counsel
Exercise / conversionOrdinary Shares 694 $0.00 $0.00
Disclosure

SEC source: 0001859690-26-000178 · form4.xml · nonDerivative · entry 1

Willcocks Patrick · CIK 0001967211 · General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,898

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: The Restricted Share Units ("RSUs") convert into ARQQ ordinary shares on a one-for-one basis.

Read SEC document
October 02, 2026 Filed Oct 6, 2026 23:46 UTC
Willcocks PatrickGeneral Counsel
Exercise / conversionRestricted Share Units · Derivative 305 Not disclosed Not disclosed
Disclosure

SEC source: 0001859690-26-000177 · form4.xml · derivative · entry 9

Willcocks Patrick · CIK 0001967211 · General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,629

Underlying: Ordinary Shares · 305 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.

F4 · derivative.exercise_price: The RSUs vest quarterly in equal installments on 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.

F1 · price: The Restricted Share 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 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.

F4 · derivative.expiration_date: The RSUs vest quarterly in equal installments on 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.

Read SEC document
October 02, 2026 Filed Oct 6, 2026 23:46 UTC
Willcocks PatrickGeneral Counsel
Exercise / conversionRestricted Share Units · Derivative 149 Not disclosed Not disclosed
Disclosure

SEC source: 0001859690-26-000177 · form4.xml · derivative · entry 8

Willcocks Patrick · CIK 0001967211 · General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,485

Underlying: Ordinary Shares · 149 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.

F3 · derivative.exercise_price: The RSUs vest quarterly in equal installments on October 1, 2026, and January 1, April 1, and July 1, 2027.

F1 · price: The Restricted Share 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 October 1, 2026, and January 1, April 1, and July 1, 2027.

F3 · derivative.expiration_date: The RSUs vest quarterly in equal installments on October 1, 2026, and January 1, April 1, and July 1, 2027.

Read SEC document
October 02, 2026 Filed Oct 6, 2026 23:46 UTC
Willcocks PatrickGeneral Counsel
Exercise / conversionRestricted Share Units · Derivative 694 Not disclosed Not disclosed
Disclosure

SEC source: 0001859690-26-000177 · form4.xml · derivative · entry 7

Willcocks Patrick · CIK 0001967211 · General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,024

Underlying: Ordinary Shares · 694 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.

F2 · derivative.exercise_price: The RSUs vest quarterly in equal installments on October 1, 2026, and January 1, April 1, July 1, and October 1, 2027.

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

F2 · derivative.exercise_date: The RSUs vest quarterly in equal installments on October 1, 2026, and January 1, April 1, July 1, and October 1, 2027.

F2 · derivative.expiration_date: The RSUs vest quarterly in equal installments on October 1, 2026, and January 1, April 1, July 1, and October 1, 2027.

Read SEC document
October 02, 2026 Filed Oct 6, 2026 23:46 UTC
Willcocks PatrickGeneral Counsel
SaleOrdinary Shares 321 $24.47 $7,856.25
Disclosure

SEC source: 0001859690-26-000177 · form4.xml · nonDerivative · entry 6

Willcocks Patrick · CIK 0001967211 · General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,204

Read SEC document
October 02, 2026 Filed Oct 6, 2026 23:46 UTC
Willcocks PatrickGeneral Counsel
SaleOrdinary Shares 70 $24.47 $1,713.20
Disclosure

SEC source: 0001859690-26-000177 · form4.xml · nonDerivative · entry 5

Willcocks Patrick · CIK 0001967211 · General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,525

Read SEC document
October 02, 2026 Filed Oct 6, 2026 23:46 UTC
Willcocks PatrickGeneral Counsel
SaleOrdinary Shares 166 $24.47 $4,062.73
Disclosure

SEC source: 0001859690-26-000177 · form4.xml · nonDerivative · entry 4

Willcocks Patrick · CIK 0001967211 · General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,595

Read SEC document
October 02, 2026 Filed Oct 6, 2026 23:46 UTC
Willcocks PatrickGeneral Counsel
Exercise / conversionOrdinary Shares 305 $0.00 $0.00
Disclosure

SEC source: 0001859690-26-000177 · form4.xml · nonDerivative · entry 3

Willcocks Patrick · CIK 0001967211 · General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,761

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: The Restricted Share Units ("RSUs") convert into ARQQ ordinary shares on a one-for-one basis.

Read SEC document
October 02, 2026 Filed Oct 6, 2026 23:46 UTC
Willcocks PatrickGeneral Counsel
Exercise / conversionOrdinary Shares 149 $0.00 $0.00
Disclosure

SEC source: 0001859690-26-000177 · form4.xml · nonDerivative · entry 2

Willcocks Patrick · CIK 0001967211 · General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,456

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: The Restricted Share Units ("RSUs") convert into ARQQ ordinary shares on a one-for-one basis.

Read SEC document
October 02, 2026 Filed Oct 6, 2026 23:46 UTC
Willcocks PatrickGeneral Counsel
Exercise / conversionOrdinary Shares 694 $0.00 $0.00
Disclosure

SEC source: 0001859690-26-000177 · form4.xml · nonDerivative · entry 1

Willcocks Patrick · CIK 0001967211 · General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,307

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: The Restricted Share Units ("RSUs") convert into ARQQ ordinary shares on a one-for-one basis.

Read SEC document
October 02, 2026 Filed Oct 6, 2026 23:45 UTC
Wilder Ben SimonChief Operating Officer
Exercise / conversionRestricted Share Units · Derivative 167 Not disclosed Not disclosed
Disclosure

SEC source: 0001859690-26-000176 · form4.xml · derivative · entry 6

Wilder Ben Simon · CIK 0002101275 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,166

Underlying: Ordinary Shares · 167 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.

F3 · derivative.exercise_price: The RSUs vest quarterly in equal installments on 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.

F1 · price: The Restricted Share 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 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.

F3 · derivative.expiration_date: The RSUs vest quarterly in equal installments on 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.

Read SEC document
October 02, 2026 Filed Oct 6, 2026 23:45 UTC
Wilder Ben SimonChief Operating Officer
Exercise / conversionRestricted Share Units · Derivative 278 Not disclosed Not disclosed
Disclosure

SEC source: 0001859690-26-000176 · form4.xml · derivative · entry 5

Wilder Ben Simon · CIK 0002101275 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,609

Underlying: Ordinary Shares · 278 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.

F2 · derivative.exercise_price: The RSUs vest quarterly in equal installments on October 1, 2026, and January 1, April 1, July 1, and October 1, 2027.

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

F2 · derivative.exercise_date: The RSUs vest quarterly in equal installments on October 1, 2026, and January 1, April 1, July 1, and October 1, 2027.

F2 · derivative.expiration_date: The RSUs vest quarterly in equal installments on October 1, 2026, and January 1, April 1, July 1, and October 1, 2027.

Read SEC document
October 02, 2026 Filed Oct 6, 2026 23:45 UTC
Wilder Ben SimonChief Operating Officer
SaleOrdinary Shares 129 $24.47 $3,157.18
Disclosure

SEC source: 0001859690-26-000176 · form4.xml · nonDerivative · entry 4

Wilder Ben Simon · CIK 0002101275 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,251.47

Read SEC document
October 02, 2026 Filed Oct 6, 2026 23:45 UTC
Wilder Ben SimonChief Operating Officer
SaleOrdinary Shares 92 $24.47 $2,251.64
Disclosure

SEC source: 0001859690-26-000176 · form4.xml · nonDerivative · entry 3

Wilder Ben Simon · CIK 0002101275 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,380.47

Read SEC document
October 02, 2026 Filed Oct 6, 2026 23:45 UTC
Wilder Ben SimonChief Operating Officer
Exercise / conversionOrdinary Shares 167 $0.00 $0.00
Disclosure

SEC source: 0001859690-26-000176 · form4.xml · nonDerivative · entry 2

Wilder Ben Simon · CIK 0002101275 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,472.47

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: The Restricted Share Units ("RSUs") convert into ARQQ ordinary shares on a one-for-one basis.

Read SEC document
October 02, 2026 Filed Oct 6, 2026 23:45 UTC
Wilder Ben SimonChief Operating Officer
Exercise / conversionOrdinary Shares 278 $0.00 $0.00
Disclosure

SEC source: 0001859690-26-000176 · form4.xml · nonDerivative · entry 1

Wilder Ben Simon · CIK 0002101275 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,305.47

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: The Restricted Share Units ("RSUs") convert into ARQQ ordinary shares on a one-for-one basis.

Read SEC document
October 02, 2026 Filed Oct 6, 2026 23:44 UTC Exercise / conversionRestricted Share Units · Derivative 83 Not disclosed Not disclosed
Disclosure

SEC source: 0001859690-26-000175 · form4.xml · derivative · entry 12

Ritchie Garth · CIK 0001840684 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,083

Underlying: Ordinary Shares · 83 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.

F4 · derivative.exercise_price: The RSUs vest quarterly in equal installments on 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.

F1 · price: The Restricted Share 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 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.

F4 · derivative.expiration_date: The RSUs vest quarterly in equal installments on 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.

Read SEC document
October 02, 2026 Filed Oct 6, 2026 23:44 UTC Exercise / conversionRestricted Share Units · Derivative 83 Not disclosed Not disclosed
Disclosure

SEC source: 0001859690-26-000175 · form4.xml · derivative · entry 11

Ritchie Garth · CIK 0001840684 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,084

Underlying: Ordinary Shares · 83 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.

F3 · derivative.exercise_price: The RSUs vest quarterly in equal installments on October 1, 2026, and January 1, April 1, July 1, and October 1, 2027.

F1 · price: The Restricted Share 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 October 1, 2026, and January 1, April 1, July 1, and October 1, 2027.

F3 · derivative.expiration_date: The RSUs vest quarterly in equal installments on October 1, 2026, and January 1, April 1, July 1, and October 1, 2027.

Read SEC document
October 02, 2026 Filed Oct 6, 2026 23:44 UTC Exercise / conversionRestricted Share Units · Derivative 67 Not disclosed Not disclosed
Disclosure

SEC source: 0001859690-26-000175 · form4.xml · derivative · entry 10

Ritchie Garth · CIK 0001840684 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 832

Underlying: Ordinary Shares · 67 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.

F2 · derivative.exercise_price: The RSUs vest quarterly in equal installments on October 1, 2026, and January 1, April 1, and July 1, 2027.

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

F2 · derivative.exercise_date: The RSUs vest quarterly in equal installments on October 1, 2026, and January 1, April 1, and July 1, 2027.

F2 · derivative.expiration_date: The RSUs vest quarterly in equal installments on October 1, 2026, and January 1, April 1, and July 1, 2027.

Read SEC document
October 02, 2026 Filed Oct 6, 2026 23:44 UTC Exercise / conversionRestricted Share Units · Derivative 17 Not disclosed Not disclosed
Disclosure

SEC source: 0001859690-26-000175 · form4.xml · derivative · entry 9

Ritchie Garth · CIK 0001840684 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 899

Underlying: Ordinary Shares · 17 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.

F2 · derivative.exercise_price: The RSUs vest quarterly in equal installments on October 1, 2026, and January 1, April 1, and July 1, 2027.

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

F2 · derivative.exercise_date: The RSUs vest quarterly in equal installments on October 1, 2026, and January 1, April 1, and July 1, 2027.

F2 · derivative.expiration_date: The RSUs vest quarterly in equal installments on October 1, 2026, and January 1, April 1, and July 1, 2027.

Read SEC document
October 02, 2026 Filed Oct 6, 2026 23:44 UTC SaleOrdinary Shares 40 $24.47 $978.97
Disclosure

SEC source: 0001859690-26-000175 · form4.xml · nonDerivative · entry 8

Ritchie Garth · CIK 0001840684 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 105,831

Read SEC document
October 02, 2026 Filed Oct 6, 2026 23:44 UTC SaleOrdinary Shares 40 $24.47 $978.97
Disclosure

SEC source: 0001859690-26-000175 · form4.xml · nonDerivative · entry 7

Ritchie Garth · CIK 0001840684 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 105,871

Read SEC document
October 02, 2026 Filed Oct 6, 2026 23:44 UTC SaleOrdinary Shares 9 $24.47 $220.27
Disclosure

SEC source: 0001859690-26-000175 · form4.xml · nonDerivative · entry 6

Ritchie Garth · CIK 0001840684 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 105,911

Read SEC document
October 02, 2026 Filed Oct 6, 2026 23:44 UTC SaleOrdinary Shares 32 $24.47 $783.18
Disclosure

SEC source: 0001859690-26-000175 · form4.xml · nonDerivative · entry 5

Ritchie Garth · CIK 0001840684 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 105,920

Read SEC document
October 02, 2026 Filed Oct 6, 2026 23:44 UTC Exercise / conversionOrdinary Shares 83 $0.00 $0.00
Disclosure

SEC source: 0001859690-26-000175 · form4.xml · nonDerivative · entry 4

Ritchie Garth · CIK 0001840684 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 105,952

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: The Restricted Share Units ("RSUs") convert into ARQQ ordinary shares on a one-for-one basis.

Read SEC document
October 02, 2026 Filed Oct 6, 2026 23:44 UTC Exercise / conversionOrdinary Shares 83 $0.00 $0.00
Disclosure

SEC source: 0001859690-26-000175 · form4.xml · nonDerivative · entry 3

Ritchie Garth · CIK 0001840684 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 105,869

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: The Restricted Share Units ("RSUs") convert into ARQQ ordinary shares on a one-for-one basis.

Read SEC document
October 02, 2026 Filed Oct 6, 2026 23:44 UTC Exercise / conversionOrdinary Shares 67 $0.00 $0.00
Disclosure

SEC source: 0001859690-26-000175 · form4.xml · nonDerivative · entry 2

Ritchie Garth · CIK 0001840684 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 105,786

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: The Restricted Share Units ("RSUs") convert into ARQQ ordinary shares on a one-for-one basis.

Read SEC document
October 02, 2026 Filed Oct 6, 2026 23:44 UTC Exercise / conversionOrdinary Shares 17 $0.00 $0.00
Disclosure

SEC source: 0001859690-26-000175 · form4.xml · nonDerivative · entry 1

Ritchie Garth · CIK 0001840684 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 105,719

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: The Restricted Share Units ("RSUs") convert into ARQQ ordinary shares on a one-for-one basis.

Read SEC document
October 02, 2026 Filed Oct 6, 2026 23:43 UTC
Nilan Nicholas WilliamGeneral Manager-US
Exercise / conversionRestricted Share Units · Derivative 960 Not disclosed Not disclosed
Disclosure

SEC source: 0001859690-26-000174 · form4.xml · derivative · entry 3

Nilan Nicholas William · CIK 0002120006 · General Manager-US

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,711

Underlying: Ordinary Shares · 960 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.

F2 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one ARQQ ordinary share. 2,879 RSUs vest on October 1, 2026 and the remaining RSUs vest quarterly in equal installments on January 1, April 1, July 1, and October 1, 2027, and January 1, April 1, July 1, and October 1, 2028.

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

F2 · derivative.exercise_date: Each restricted stock unit ("RSU") represents a contingent right to receive one ARQQ ordinary share. 2,879 RSUs vest on October 1, 2026 and the remaining RSUs vest quarterly in equal installments on 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: Each restricted stock unit ("RSU") represents a contingent right to receive one ARQQ ordinary share. 2,879 RSUs vest on October 1, 2026 and the remaining RSUs vest quarterly in equal installments on January 1, April 1, July 1, and October 1, 2027, and January 1, April 1, July 1, and October 1, 2028.

Read SEC document
October 02, 2026 Filed Oct 6, 2026 23:43 UTC
Nilan Nicholas WilliamGeneral Manager-US
Exercise / conversionOrdinary Shares 960 $0.00 $0.00
Disclosure

SEC source: 0001859690-26-000174 · form4.xml · nonDerivative · entry 2

Nilan Nicholas William · CIK 0002120006 · General Manager-US

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,426

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: The Restricted Share Units ("RSUs") convert into ARQQ ordinary shares on a one-for-one basis.

Read SEC document
October 02, 2026 Filed Oct 6, 2026 23:43 UTC
Nilan Nicholas WilliamGeneral Manager-US
SaleOrdinary Shares 494 $24.47 $12,090.30
Disclosure

SEC source: 0001859690-26-000174 · form4.xml · nonDerivative · entry 1

Nilan Nicholas William · CIK 0002120006 · General Manager-US

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 466

Read SEC document
October 02, 2026 Filed Oct 6, 2026 23:42 UTC
Leaver AndrewChief Executive Officer
Exercise / conversionRestricted Share Units · Derivative 5,208 Not disclosed Not disclosed
Disclosure

SEC source: 0001859690-26-000173 · form4.xml · derivative · entry 3

Leaver Andrew · CIK 0002035890 · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 192,708

Underlying: Ordinary Shares · 5,208 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.

F2 · derivative.exercise_price: The RSUs vest quarterly in equal installments on 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, and January 1, April 1, July 1, and October 1, 2029.

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

F2 · derivative.exercise_date: The RSUs vest quarterly in equal installments on 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, and January 1, April 1, July 1, and October 1, 2029.

F2 · derivative.expiration_date: The RSUs vest quarterly in equal installments on 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, and January 1, April 1, July 1, and October 1, 2029.

Read SEC document
October 02, 2026 Filed Oct 6, 2026 23:42 UTC
Leaver AndrewChief Executive Officer
SaleOrdinary Shares 2,818 $24.47 $68,968.58
Disclosure

SEC source: 0001859690-26-000173 · form4.xml · nonDerivative · entry 2

Leaver Andrew · CIK 0002035890 · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 59,082

Read SEC document
October 02, 2026 Filed Oct 6, 2026 23:42 UTC
Leaver AndrewChief Executive Officer
Exercise / conversionOrdinary Shares 5,208 $0.00 $0.00
Disclosure

SEC source: 0001859690-26-000173 · form4.xml · nonDerivative · entry 1

Leaver Andrew · CIK 0002035890 · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 61,900

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: The Restricted Share Units ("RSUs") convert into ARQQ ordinary shares on a one-for-one basis.

Read SEC document
October 02, 2026 Filed Oct 6, 2026 23:41 UTC
Feenan PaulChief Revenue Officer
Exercise / conversionRestricted Share Units · Derivative 322 Not disclosed Not disclosed
Disclosure

SEC source: 0001859690-26-000172 · form4.xml · derivative · entry 9

Feenan Paul · CIK 0001967068 · Chief Revenue Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,046

Underlying: Ordinary Shares · 322 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.

F4 · derivative.exercise_price: The RSUs vest quarterly in equal installments on 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.

F1 · price: The Restricted Share 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 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.

F4 · derivative.expiration_date: The RSUs vest quarterly in equal installments on 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.

Read SEC document
October 02, 2026 Filed Oct 6, 2026 23:41 UTC
Feenan PaulChief Revenue Officer
Exercise / conversionRestricted Share Units · Derivative 157 Not disclosed Not disclosed
Disclosure

SEC source: 0001859690-26-000172 · form4.xml · derivative · entry 8

Feenan Paul · CIK 0001967068 · Chief Revenue Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,570

Underlying: Ordinary Shares · 157 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.

F3 · derivative.exercise_price: The RSUs vest quarterly in equal installments on October 1, 2026, and January 1, April 1, and July 1, 2027.

F1 · price: The Restricted Share 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 October 1, 2026, and January 1, April 1, and July 1, 2027.

F3 · derivative.expiration_date: The RSUs vest quarterly in equal installments on October 1, 2026, and January 1, April 1, and July 1, 2027.

Read SEC document
October 02, 2026 Filed Oct 6, 2026 23:41 UTC
Feenan PaulChief Revenue Officer
Exercise / conversionRestricted Share Units · Derivative 555 Not disclosed Not disclosed
Disclosure

SEC source: 0001859690-26-000172 · form4.xml · derivative · entry 7

Feenan Paul · CIK 0001967068 · Chief Revenue Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,219

Underlying: Ordinary Shares · 555 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.

F2 · derivative.exercise_price: The RSUs vest quarterly in equal installments on October 1, 2026, and January 1, April 1, July 1, and October 1, 2027.

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

F2 · derivative.exercise_date: The RSUs vest quarterly in equal installments on October 1, 2026, and January 1, April 1, July 1, and October 1, 2027.

F2 · derivative.expiration_date: The RSUs vest quarterly in equal installments on October 1, 2026, and January 1, April 1, July 1, and October 1, 2027.

Read SEC document
October 02, 2026 Filed Oct 6, 2026 23:41 UTC
Feenan PaulChief Revenue Officer
SaleOrdinary Shares 257 $24.47 $6,289.90
Disclosure

SEC source: 0001859690-26-000172 · form4.xml · nonDerivative · entry 6

Feenan Paul · CIK 0001967068 · Chief Revenue Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,915

Read SEC document

Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.