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Wilder Ben Simon

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31928
SEC CIK
0002101275

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CompanyLast reported asReport datePublished
Arqit Quantum Inc.ARQQ · Entity 5853Chief Operating OfficerOctober 06, 2026October 08, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

Arqit Quantum Inc.

Report date October 06, 2026 · Filed October 08, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Ordinary SharesSEC Table I · non-derivativeDirect4,243.47 Reported balance After 2026-10-06 transaction · row 1
1 source row

Row 1 · 2026-10-06 · Sale · Disposed 218 · Balance 4,243.47

Transaction history

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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 dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
October 06, 2026 Filed Oct 8, 2026 22:19 UTC Arqit Quantum Inc. ARQQ · Entity 5853 SaleOrdinary Shares 218 $24.19 $5,273.75
Disclosure

SEC source: 0001859690-26-000191 · form4.xml · nonDerivative · entry 1

Wilder Ben Simon · CIK 0002101275 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,243.47

Read SEC document
October 05, 2026 Filed Oct 7, 2026 23:42 UTC Arqit Quantum Inc. ARQQ · Entity 5853 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 Arqit Quantum Inc. ARQQ · Entity 5853 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 Arqit Quantum Inc. ARQQ · Entity 5853 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 Arqit Quantum Inc. ARQQ · Entity 5853 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 Arqit Quantum Inc. ARQQ · Entity 5853 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 02, 2026 Filed Oct 6, 2026 23:45 UTC Arqit Quantum Inc. ARQQ · Entity 5853 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 Arqit Quantum Inc. ARQQ · Entity 5853 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 Arqit Quantum Inc. ARQQ · Entity 5853 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 Arqit Quantum Inc. ARQQ · Entity 5853 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 Arqit Quantum Inc. ARQQ · Entity 5853 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 Arqit Quantum Inc. ARQQ · Entity 5853 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 01, 2026 Filed Oct 6, 2026 00:24 UTC Arqit Quantum Inc. ARQQ · Entity 5853 Exercise / conversionRestricted Share Units · Derivative 167 Not disclosed Not disclosed
Disclosure

SEC source: 0001859690-26-000163 · form4.xml · derivative · entry 4

Wilder Ben Simon · CIK 0002101275 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,333

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 01, 2026 Filed Oct 6, 2026 00:24 UTC Arqit Quantum Inc. ARQQ · Entity 5853 Exercise / conversionRestricted Share Units · Derivative 278 Not disclosed Not disclosed
Disclosure

SEC source: 0001859690-26-000163 · form4.xml · derivative · entry 3

Wilder Ben Simon · CIK 0002101275 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,887

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 01, 2026 Filed Oct 6, 2026 00:24 UTC Arqit Quantum Inc. ARQQ · Entity 5853 Exercise / conversionOrdinary Shares 167 $0.00 $0.00
Disclosure

SEC source: 0001859690-26-000163 · form4.xml · nonDerivative · entry 2

Wilder Ben Simon · CIK 0002101275 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,027.47

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 01, 2026 Filed Oct 6, 2026 00:24 UTC Arqit Quantum Inc. ARQQ · Entity 5853 Exercise / conversionOrdinary Shares 278 $0.00 $0.00
Disclosure

SEC source: 0001859690-26-000163 · form4.xml · nonDerivative · entry 1

Wilder Ben Simon · CIK 0002101275 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,860.47

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
July 02, 2026 Filed Jul 6, 2026 20:11 UTC Arqit Quantum Inc. ARQQ · Entity 5853 SaleOrdinary Shares 769 $25.20 $19,380.80
Disclosure

SEC source: 0001859690-26-000131 · form4.xml · nonDerivative · entry 3

Wilder Ben Simon · CIK 0002101275 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,582.47

Read SEC document
July 01, 2026 Filed Jul 6, 2026 20:11 UTC Arqit Quantum Inc. ARQQ · Entity 5853 Exercise / conversionRestricted Share Units · Derivative 500 $0.00 $0.00
Disclosure

SEC source: 0001859690-26-000131 · form4.xml · derivative · entry 5

Wilder Ben Simon · CIK 0002101275 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,500

Underlying: Ordinary Shares · 500 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: 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 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.

F3 · derivative.expiration_date: The 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.

Read SEC document
July 01, 2026 Filed Jul 6, 2026 20:11 UTC Arqit Quantum Inc. ARQQ · Entity 5853 Exercise / conversionRestricted Share Units · Derivative 833 $0.00 $0.00
Disclosure

SEC source: 0001859690-26-000131 · form4.xml · derivative · entry 4

Wilder Ben Simon · CIK 0002101275 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,165

Underlying: Ordinary Shares · 833 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: 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 July 1 and 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 July 1 and October 1, 2026, and January 1, April 1, July 1, and October 1, 2027.

Read SEC document
July 01, 2026 Filed Jul 6, 2026 20:11 UTC Arqit Quantum Inc. ARQQ · Entity 5853 Exercise / conversionOrdinary Shares 500 $0.00 $0.00
Disclosure

SEC source: 0001859690-26-000131 · form4.xml · nonDerivative · entry 2

Wilder Ben Simon · CIK 0002101275 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,351.47

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
July 01, 2026 Filed Jul 6, 2026 20:11 UTC Arqit Quantum Inc. ARQQ · Entity 5853 Exercise / conversionOrdinary Shares 833 $0.00 $0.00
Disclosure

SEC source: 0001859690-26-000131 · form4.xml · nonDerivative · entry 1

Wilder Ben Simon · CIK 0002101275 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,851.47

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
April 02, 2026 Filed Apr 3, 2026 23:28 UTC Arqit Quantum Inc. ARQQ · Entity 5853 SaleOrdinary Shares 683 $13.31 $9,091.55
Disclosure

SEC source: 0001859690-26-000060 · form4.xml · nonDerivative · entry 3

Wilder Ben Simon · CIK 0002101275 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,018.47

Read SEC document
April 01, 2026 Filed Apr 3, 2026 23:28 UTC Arqit Quantum Inc. ARQQ · Entity 5853 Exercise / conversionRestricted Stock Units · Derivative 500 $0.00 $0.00
Disclosure

SEC source: 0001859690-26-000060 · form4.xml · derivative · entry 5

Wilder Ben Simon · CIK 0002101275 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,000

Underlying: Ordinary Shares · 500 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: 500 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.

F3 · derivative.expiration_date: 500 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.

Read SEC document
April 01, 2026 Filed Apr 3, 2026 23:28 UTC Arqit Quantum Inc. ARQQ · Entity 5853 Exercise / conversionRestricted Stock Units · Derivative 833 $0.00 $0.00
Disclosure

SEC source: 0001859690-26-000060 · form4.xml · derivative · entry 4

Wilder Ben Simon · CIK 0002101275 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,998

Underlying: Ordinary Shares · 833 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: 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.

F2 · 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.

Read SEC document
April 01, 2026 Filed Apr 3, 2026 23:28 UTC Arqit Quantum Inc. ARQQ · Entity 5853 Exercise / conversionOrdinary Shares 500 $0.00 $0.00
Disclosure

SEC source: 0001859690-26-000060 · form4.xml · nonDerivative · entry 2

Wilder Ben Simon · CIK 0002101275 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,701.47

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

Read SEC document
April 01, 2026 Filed Apr 3, 2026 23:28 UTC Arqit Quantum Inc. ARQQ · Entity 5853 Exercise / conversionOrdinary Shares 833 $0.00 $0.00
Disclosure

SEC source: 0001859690-26-000060 · form4.xml · nonDerivative · entry 1

Wilder Ben Simon · CIK 0002101275 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,201.47

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

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.