Sinha Vikas

SEC source: 0001104659-26-045582 · tm2612274-2_4seq1.xml · nonDerivative · entry 1

Sinha Vikas · CIK 0001337845 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 619,856

F1 · shares: Represents the number of shares required to be sold by the reporting person to cover the tax withholding obligation in connection with the vesting of restricted stock units ("RSUs") on April 15, 2026. This sale is mandated by the Issuer's election under its equity incentive plans to require the reporting person to fund this tax withholding obligation by completing a "sell to cover" transaction with a brokerage firm designated by the Issuer. This sale does not represent a discretionary trade by the reporting person. The shares vested pursuant to awards that were granted on April 27, 2025. Each RSU represents the contingent right to receive upon vesting of the RSU, one share of the Issuer's common stock. The shares subject to these RSU awards vest annually over four years, subject to a continued service relationship with the Issuer on the applicable vesting date.

F2 · balance_after: Consists of 47,835 shares of common stock, 122,021 RSUs subject to time-based vesting conditions and 450,000 RSUs subject to performance- and time-based vesting conditions.

SEC source: 0001104659-26-013586 · tm266077-7_4seq1.xml · nonDerivative · entry 1

Sinha Vikas · CIK 0001337845 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 630,266

F1 · shares: Represents restricted stock units ("RSUs") subject to time-based vesting conditions. Each RSU represents the contingent right to receive, upon vesting of the RSU, one share of the Issuer's common stock. The shares subject to this RSU vest in four annual installments over four years, with the first annual installment to vest on January 15, 2027 and each additional installment to vest annually thereafter; provided the reporting person continues to have a service relationship with the Issuer on each such vesting date.

F2 · balance_after: Consists of 33,245 shares of common stock, 147,021 RSUs subject to time-based vesting conditions and 450,000 RSUs subject to performance- and time-based vesting conditions.

SEC source: 0001104659-26-004224 · tm263352-4_4seq1.xml · nonDerivative · entry 1

Sinha Vikas · CIK 0001337845 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 583,245

F1 · shares: Represents the number of shares required to be sold by the Reporting Person to cover the tax withholding obligation in connection with the vesting of restricted stock units subject to performance-and time-based vesting conditions ("PSUs"). The sale is mandated by the Issuer's election under its equity incentive plans to require the Reporting Person to fund this tax withholding obligation by completing a "sell to cover" transaction with a brokerage firm designated by the Issuer. This sale does not represent a discretionary trade by the Reporting Person. Each PSU represents the contingent right to receive upon vesting of the PSU, one share of the Issuer's common stock.

F2 · shares: (continued) The shares vested pursuant to awards that were granted on April 27, 2025. 50,000 shares subject to this PSU vested on January 12, 2026, with an additional 50,000 shares scheduled to vest on April 27, 2027 and the remaining shares vesting in tranches of a combination of performance-based vesting tied to the Issuer's common stock achieving certain price targets and time-based vesting over four year, provided the Reporting Person continues to have a service relationship with the Issuer on each such vesting date. Any PSUs that have not vested on or prior to April 27, 2029 will be forfeited for no consideration.

F3 · balance_after: 33,245 shares of common stock, 100,000 restricted stock units and 450,000 PSUs.

SEC source: 0001104659-25-097954 · tm2528014-7_4seq1.xml · derivative · entry 8

Sinha Vikas · CIK 0001337845 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Ordinary Shares · 64,000 shares

Expires 2031-08-08

F6 · price: Pursuant to the terms of the Transaction Agreement, immediately prior to the Effective Time, each outstanding share option became fully vested, to the extent unvested, and at the Effective Time, each share option that had an exercise price less than the ADS Consideration was automatically converted into the right to receive an amount in cash equal to the product of (i) the aggregate number of ADSs underlying such share option and (ii) the excess, if any, of (a) an amount equal to the ADS Consideration over (b) the exercise price of such share option.

F6 · derivative.exercise_date: Pursuant to the terms of the Transaction Agreement, immediately prior to the Effective Time, each outstanding share option became fully vested, to the extent unvested, and at the Effective Time, each share option that had an exercise price less than the ADS Consideration was automatically converted into the right to receive an amount in cash equal to the product of (i) the aggregate number of ADSs underlying such share option and (ii) the excess, if any, of (a) an amount equal to the ADS Consideration over (b) the exercise price of such share option.

F1 · derivative.underlying: Reported securities are represented by American Depositary Shares ("ADSs"), each of which represents eight (8) Ordinary Shares of the Issuer.

SEC source: 0001104659-25-097954 · tm2528014-7_4seq1.xml · derivative · entry 7

Sinha Vikas · CIK 0001337845 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Ordinary Shares · 240,000 shares

Expires 2034-04-28

F6 · price: Pursuant to the terms of the Transaction Agreement, immediately prior to the Effective Time, each outstanding share option became fully vested, to the extent unvested, and at the Effective Time, each share option that had an exercise price less than the ADS Consideration was automatically converted into the right to receive an amount in cash equal to the product of (i) the aggregate number of ADSs underlying such share option and (ii) the excess, if any, of (a) an amount equal to the ADS Consideration over (b) the exercise price of such share option.

F6 · derivative.exercise_date: Pursuant to the terms of the Transaction Agreement, immediately prior to the Effective Time, each outstanding share option became fully vested, to the extent unvested, and at the Effective Time, each share option that had an exercise price less than the ADS Consideration was automatically converted into the right to receive an amount in cash equal to the product of (i) the aggregate number of ADSs underlying such share option and (ii) the excess, if any, of (a) an amount equal to the ADS Consideration over (b) the exercise price of such share option.

F1 · derivative.underlying: Reported securities are represented by American Depositary Shares ("ADSs"), each of which represents eight (8) Ordinary Shares of the Issuer.

SEC source: 0001104659-25-097954 · tm2528014-7_4seq1.xml · derivative · entry 6

Sinha Vikas · CIK 0001337845 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Ordinary Shares · 96,000 shares

Expires 2033-04-27

F6 · price: Pursuant to the terms of the Transaction Agreement, immediately prior to the Effective Time, each outstanding share option became fully vested, to the extent unvested, and at the Effective Time, each share option that had an exercise price less than the ADS Consideration was automatically converted into the right to receive an amount in cash equal to the product of (i) the aggregate number of ADSs underlying such share option and (ii) the excess, if any, of (a) an amount equal to the ADS Consideration over (b) the exercise price of such share option.

F6 · derivative.exercise_date: Pursuant to the terms of the Transaction Agreement, immediately prior to the Effective Time, each outstanding share option became fully vested, to the extent unvested, and at the Effective Time, each share option that had an exercise price less than the ADS Consideration was automatically converted into the right to receive an amount in cash equal to the product of (i) the aggregate number of ADSs underlying such share option and (ii) the excess, if any, of (a) an amount equal to the ADS Consideration over (b) the exercise price of such share option.

F1 · derivative.underlying: Reported securities are represented by American Depositary Shares ("ADSs"), each of which represents eight (8) Ordinary Shares of the Issuer.

SEC source: 0001104659-25-097954 · tm2528014-7_4seq1.xml · derivative · entry 5

Sinha Vikas · CIK 0001337845 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Ordinary Shares · 384 shares

Expires 2032-04-27

F6 · price: Pursuant to the terms of the Transaction Agreement, immediately prior to the Effective Time, each outstanding share option became fully vested, to the extent unvested, and at the Effective Time, each share option that had an exercise price less than the ADS Consideration was automatically converted into the right to receive an amount in cash equal to the product of (i) the aggregate number of ADSs underlying such share option and (ii) the excess, if any, of (a) an amount equal to the ADS Consideration over (b) the exercise price of such share option.

F6 · derivative.exercise_date: Pursuant to the terms of the Transaction Agreement, immediately prior to the Effective Time, each outstanding share option became fully vested, to the extent unvested, and at the Effective Time, each share option that had an exercise price less than the ADS Consideration was automatically converted into the right to receive an amount in cash equal to the product of (i) the aggregate number of ADSs underlying such share option and (ii) the excess, if any, of (a) an amount equal to the ADS Consideration over (b) the exercise price of such share option.

F1 · derivative.underlying: Reported securities are represented by American Depositary Shares ("ADSs"), each of which represents eight (8) Ordinary Shares of the Issuer.

SEC source: 0001104659-25-097954 · tm2528014-7_4seq1.xml · derivative · entry 4

Sinha Vikas · CIK 0001337845 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Ordinary Shares · 72,000 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.

F5 · security: Represents an award of RSUs covering ADSs, which is presented in terms of the equivalent number of Ordinary Shares underlying the ADSs. Each RSU represents a contingent right to receive one (1) ADS of the Issuer. Each ADS represents eight (8) Ordinary Shares of the Issuer. The RSUs have no expiration date.

F4 · derivative.exercise_price: Pursuant to the terms of the Transaction Agreement, immediately prior to the Effective Time, each outstanding time-based restricted share unit award ("RSU Award"), unless agreed otherwise, became fully vested, and at the Effective Time, was automatically converted into the right to receive an amount in cash (without interest and subject to all required withholding taxes) equal to the product of (i) the aggregate number of ADSs underlying such RSU Award and (ii) the ADS Consideration.

F4 · price: Pursuant to the terms of the Transaction Agreement, immediately prior to the Effective Time, each outstanding time-based restricted share unit award ("RSU Award"), unless agreed otherwise, became fully vested, and at the Effective Time, was automatically converted into the right to receive an amount in cash (without interest and subject to all required withholding taxes) equal to the product of (i) the aggregate number of ADSs underlying such RSU Award and (ii) the ADS Consideration.

F4 · derivative.exercise_date: Pursuant to the terms of the Transaction Agreement, immediately prior to the Effective Time, each outstanding time-based restricted share unit award ("RSU Award"), unless agreed otherwise, became fully vested, and at the Effective Time, was automatically converted into the right to receive an amount in cash (without interest and subject to all required withholding taxes) equal to the product of (i) the aggregate number of ADSs underlying such RSU Award and (ii) the ADS Consideration.

F4 · derivative.expiration_date: Pursuant to the terms of the Transaction Agreement, immediately prior to the Effective Time, each outstanding time-based restricted share unit award ("RSU Award"), unless agreed otherwise, became fully vested, and at the Effective Time, was automatically converted into the right to receive an amount in cash (without interest and subject to all required withholding taxes) equal to the product of (i) the aggregate number of ADSs underlying such RSU Award and (ii) the ADS Consideration.

F1 · derivative.underlying: Reported securities are represented by American Depositary Shares ("ADSs"), each of which represents eight (8) Ordinary Shares of the Issuer.

SEC source: 0001104659-25-097954 · tm2528014-7_4seq1.xml · nonDerivative · entry 3

Sinha Vikas · CIK 0001337845 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

F1 · security: Reported securities are represented by American Depositary Shares ("ADSs"), each of which represents eight (8) Ordinary Shares of the Issuer.

F4 · price: Pursuant to the terms of the Transaction Agreement, immediately prior to the Effective Time, each outstanding time-based restricted share unit award ("RSU Award"), unless agreed otherwise, became fully vested, and at the Effective Time, was automatically converted into the right to receive an amount in cash (without interest and subject to all required withholding taxes) equal to the product of (i) the aggregate number of ADSs underlying such RSU Award and (ii) the ADS Consideration.

SEC source: 0001104659-25-097954 · tm2528014-7_4seq1.xml · nonDerivative · entry 2

Sinha Vikas · CIK 0001337845 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 72,000

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 · security: Reported securities are represented by American Depositary Shares ("ADSs"), each of which represents eight (8) Ordinary Shares of the Issuer.

F4 · price: Pursuant to the terms of the Transaction Agreement, immediately prior to the Effective Time, each outstanding time-based restricted share unit award ("RSU Award"), unless agreed otherwise, became fully vested, and at the Effective Time, was automatically converted into the right to receive an amount in cash (without interest and subject to all required withholding taxes) equal to the product of (i) the aggregate number of ADSs underlying such RSU Award and (ii) the ADS Consideration.

SEC source: 0001104659-25-097954 · tm2528014-7_4seq1.xml · nonDerivative · entry 1

Sinha Vikas · CIK 0001337845 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

F1 · security: Reported securities are represented by American Depositary Shares ("ADSs"), each of which represents eight (8) Ordinary Shares of the Issuer.

F2 · price: Represents Ordinary Shares of the Issuer acquired from the Reporting Person by means of a scheme of arrangement (the "Scheme of Arrangement") under Part 26 of the UK Companies Act 2006, pursuant to a transaction agreement, dated as of July 8, 2025 (the "Transaction Agreement"), by and among the Issuer, Merck Sharp & Dohme LLC, a New Jersey limited liability company ("Parent") and Vol Holdings LLC, a Delaware limited liability company and wholly owned subsidiary of Parent ("Bidco").

F3 · price: At the effective time of the Scheme of Arrangement (the "Effective Time"), each holder of the Scheme Shares (as defined in the Scheme of Arrangement) became entitled to receive $13.375 in cash per Scheme Share, without interest and net of any applicable withholding taxes. Because each ADS represents a beneficial ownership interest in eight (8) Ordinary Shares of the Issuer, holders of ADSs as of the Effective Time became entitled to receive eight (8) times the foregoing cash amount, or $107 in cash, without interest and net of any applicable withholding taxes, per ADS (the "ADS Consideration").

SEC source: 0001104659-25-074382 · tm2522566-2_4seq1.xml · derivative · entry 3

Sinha Vikas · CIK 0001337845 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 72,000

Underlying: Ordinary Shares · 24,000 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.

F5 · security: Represents an award of RSUs covering ADSs, which is presented in terms of the equivalent number of Ordinary Shares underlying the ADSs. Each RSU represents a contingent right to receive one (1) ADS of the Issuer. Each ADS represents eight (8) Ordinary Shares of the Issuer. The RSUs have no expiration date.

F5 · derivative.exercise_price: Represents an award of RSUs covering ADSs, which is presented in terms of the equivalent number of Ordinary Shares underlying the ADSs. Each RSU represents a contingent right to receive one (1) ADS of the Issuer. Each ADS represents eight (8) Ordinary Shares of the Issuer. The RSUs have no expiration date.

F6 · derivative.exercise_date: The RSUs vest as to 25% of the total shares on each of August 1, 2025, November 1, 2025, February 1, 2026 and May 1, 2026 subject to the Reporting Person's continued service to the Issuer on each vesting date.

F5 · derivative.expiration_date: Represents an award of RSUs covering ADSs, which is presented in terms of the equivalent number of Ordinary Shares underlying the ADSs. Each RSU represents a contingent right to receive one (1) ADS of the Issuer. Each ADS represents eight (8) Ordinary Shares of the Issuer. The RSUs have no expiration date.

F1 · derivative.underlying: Reported securities are represented by American Depositary Shares ("ADSs"), each of which represents eight (8) Ordinary Shares of the Issuer.

SEC source: 0001104659-25-074382 · tm2522566-2_4seq1.xml · nonDerivative · entry 2

Sinha Vikas · CIK 0001337845 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 94,112

F1 · security: Reported securities are represented by American Depositary Shares ("ADSs"), each of which represents eight (8) Ordinary Shares of the Issuer.

F2 · kind: The sale reported in the Form 4 represents a mandatory "sell-to-cover" transaction for the purpose of satisfying the Reporting Person's tax withholding obligation upon the vesting of the restricted stock units ("RSUs").

F3 · price: The price reported represents the sale price of the ADSs divided by eight (8).

F4 · balance_after: Consists of 94,112 Ordinary Shares represented by 11,764 ADSs.

SEC source: 0001104659-25-074382 · tm2522566-2_4seq1.xml · nonDerivative · entry 1

Sinha Vikas · CIK 0001337845 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 98,440

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 · security: Reported securities are represented by American Depositary Shares ("ADSs"), each of which represents eight (8) Ordinary Shares of the Issuer.

SEC source: 0001104659-25-051986 · tm2515898-2_4seq1.xml · derivative · entry 3

Sinha Vikas · CIK 0001337845 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 384

Underlying: Ordinary Shares · 160,000 shares

Expires 2032-04-27

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.

F5 · security: The number of securities underlying the option and the exercise price therefor are listed in terms of Ordinary Shares, however, each security is represented by American Depositary Shares ("ADSs"), each of which represents eight (8) Ordinary Shares of the Issuer.

F6 · derivative.exercise_date: The option is fully vested.

SEC source: 0001104659-25-051986 · tm2515898-2_4seq1.xml · nonDerivative · entry 2

Sinha Vikas · CIK 0001337845 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 74,440

F1 · security: Reported securities are represented by American Depositary Shares ("ADSs"), each of which represents eight (8) Ordinary Shares of the Issuer.

F2 · kind: The sale reported in the Form 4 was effected pursuant to a Rule 10b5-1 plan adopted by the Reporting Person on November 6, 2024.

F3 · price: The price reported is a weighted average price, and is based on the sale price of the ADSs divided by eight (8). The securities were sold in multiple transactions at per share prices ranging from $9.375 to $9.4263, inclusive (or $75.00 to $75.41 per ADS, inclusive). The Reporting Person undertakes to provide upon request to the SEC staff, the Issuer, or any shareholder of the Issuer, full information regarding the number of securities sold at each separate price within the range set forth in this footnote 3.

F4 · balance_after: Consists of 74,440 Ordinary Shares represented by 9,305 ADSs.

SEC source: 0001104659-25-051986 · tm2515898-2_4seq1.xml · nonDerivative · entry 1

Sinha Vikas · CIK 0001337845 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 234,440

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 · security: Reported securities are represented by American Depositary Shares ("ADSs"), each of which represents eight (8) Ordinary Shares of the Issuer.

SEC source: 0001104659-25-045114 · tm2513936-2_4seq1.xml · derivative · entry 1

Sinha Vikas · CIK 0001337845 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 110,067

Underlying: Common Stock · 110,067 shares

Expires 2035-05-02

F1 · derivative.exercise_date: 25% of the shares underlying this option shall vest on April 27, 2026, with the remainder vesting in twelve equal quarterly installments thereafter; provided the reporting person continues to have a service relationship with the Issuer on each such vesting date.

SEC source: 0001104659-25-043644 · tm2513834-1_4seq1.xml · derivative · entry 6

Sinha Vikas · CIK 0001337845 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 195,048

Underlying: Ordinary Shares · 4,952 shares

Expires 2032-04-27

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 number of securities underlying the option and the exercise price therefor are listed in terms of Ordinary Shares, however, each security is represented by American Depositary Shares ("ADSs"), each of which represents eight (8) Ordinary Shares of the Issuer.

F4 · shares: The number of securities underlying the option and the exercise price therefor are listed in terms of Ordinary Shares, however, each security is represented by American Depositary Shares ("ADSs"), each of which represents eight (8) Ordinary Shares of the Issuer.

F5 · derivative.exercise_date: The option is fully vested.

F4 · derivative.underlying_shares: The number of securities underlying the option and the exercise price therefor are listed in terms of Ordinary Shares, however, each security is represented by American Depositary Shares ("ADSs"), each of which represents eight (8) Ordinary Shares of the Issuer.

F4 · balance_after: The number of securities underlying the option and the exercise price therefor are listed in terms of Ordinary Shares, however, each security is represented by American Depositary Shares ("ADSs"), each of which represents eight (8) Ordinary Shares of the Issuer.

SEC source: 0001104659-25-043644 · tm2513834-1_4seq1.xml · derivative · entry 5

Sinha Vikas · CIK 0001337845 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 80,952

Underlying: Ordinary Shares · 15,048 shares

Expires 2027-04-26

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 number of securities underlying the option and the exercise price therefor are listed in terms of Ordinary Shares, however, each security is represented by American Depositary Shares ("ADSs"), each of which represents eight (8) Ordinary Shares of the Issuer.

F4 · shares: The number of securities underlying the option and the exercise price therefor are listed in terms of Ordinary Shares, however, each security is represented by American Depositary Shares ("ADSs"), each of which represents eight (8) Ordinary Shares of the Issuer.

F5 · derivative.exercise_date: The option is fully vested.

F4 · derivative.underlying_shares: The number of securities underlying the option and the exercise price therefor are listed in terms of Ordinary Shares, however, each security is represented by American Depositary Shares ("ADSs"), each of which represents eight (8) Ordinary Shares of the Issuer.

F4 · balance_after: The number of securities underlying the option and the exercise price therefor are listed in terms of Ordinary Shares, however, each security is represented by American Depositary Shares ("ADSs"), each of which represents eight (8) Ordinary Shares of the Issuer.

SEC source: 0001104659-25-043644 · tm2513834-1_4seq1.xml · nonDerivative · entry 4

Sinha Vikas · CIK 0001337845 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 74,440

F1 · security: Reported securities are represented by American Depositary Shares ("ADSs"), each of which represents eight (8) Ordinary Shares of the Issuer.

F2 · kind: The sale reported in the Form 4 was effected pursuant to a Rule 10b5-1 instruction adopted by the Reporting Person on November 6, 2024, solely with the intent to cover payment of the exercise price.

F3 · balance_after: Consists of 74,440 Ordinary Shares represented by 9,305 ADSs.

SEC source: 0001104659-25-043644 · tm2513834-1_4seq1.xml · nonDerivative · entry 3

Sinha Vikas · CIK 0001337845 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 79,392

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 · security: Reported securities are represented by American Depositary Shares ("ADSs"), each of which represents eight (8) Ordinary Shares of the Issuer.

SEC source: 0001104659-25-043644 · tm2513834-1_4seq1.xml · nonDerivative · entry 2

Sinha Vikas · CIK 0001337845 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 74,440

F1 · security: Reported securities are represented by American Depositary Shares ("ADSs"), each of which represents eight (8) Ordinary Shares of the Issuer.

F2 · kind: The sale reported in the Form 4 was effected pursuant to a Rule 10b5-1 instruction adopted by the Reporting Person on November 6, 2024, solely with the intent to cover payment of the exercise price.

SEC source: 0001104659-25-043644 · tm2513834-1_4seq1.xml · nonDerivative · entry 1

Sinha Vikas · CIK 0001337845 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 89,488

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 · security: Reported securities are represented by American Depositary Shares ("ADSs"), each of which represents eight (8) Ordinary Shares of the Issuer.

SEC source: 0001104659-25-051979 · tm2515898-1_4aseq1.xml · derivative · entry 6

Sinha Vikas · CIK 0001337845 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 160,384

Underlying: Ordinary Shares · 39,616 shares

Expires 2032-04-27

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 · security: This Form 4 amendment is being filed to correct the Reporting Person's Form 4 filed on May 1, 2025 which erroneously presented all transacted securities in American Depositary Shares ("ADSs") instead of Ordinary Shares.

F5 · security: The number of securities underlying the option and the exercise price therefor are listed in terms of Ordinary Shares, however, each security is represented by ADSs, each of which represents eight (8) Ordinary Shares of the Issuer.

F1 · shares: This Form 4 amendment is being filed to correct the Reporting Person's Form 4 filed on May 1, 2025 which erroneously presented all transacted securities in American Depositary Shares ("ADSs") instead of Ordinary Shares.

F6 · derivative.exercise_date: The option is fully vested.

F1 · derivative.underlying_shares: This Form 4 amendment is being filed to correct the Reporting Person's Form 4 filed on May 1, 2025 which erroneously presented all transacted securities in American Depositary Shares ("ADSs") instead of Ordinary Shares.

F1 · balance_after: This Form 4 amendment is being filed to correct the Reporting Person's Form 4 filed on May 1, 2025 which erroneously presented all transacted securities in American Depositary Shares ("ADSs") instead of Ordinary Shares.

SEC source: 0001104659-25-051979 · tm2515898-1_4aseq1.xml · derivative · entry 5

Sinha Vikas · CIK 0001337845 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Ordinary Shares · 120,384 shares

Expires 2027-04-26

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 · security: This Form 4 amendment is being filed to correct the Reporting Person's Form 4 filed on May 1, 2025 which erroneously presented all transacted securities in American Depositary Shares ("ADSs") instead of Ordinary Shares.

F5 · security: The number of securities underlying the option and the exercise price therefor are listed in terms of Ordinary Shares, however, each security is represented by ADSs, each of which represents eight (8) Ordinary Shares of the Issuer.

F1 · shares: This Form 4 amendment is being filed to correct the Reporting Person's Form 4 filed on May 1, 2025 which erroneously presented all transacted securities in American Depositary Shares ("ADSs") instead of Ordinary Shares.

F6 · derivative.exercise_date: The option is fully vested.

F1 · derivative.underlying_shares: This Form 4 amendment is being filed to correct the Reporting Person's Form 4 filed on May 1, 2025 which erroneously presented all transacted securities in American Depositary Shares ("ADSs") instead of Ordinary Shares.

F1 · balance_after: This Form 4 amendment is being filed to correct the Reporting Person's Form 4 filed on May 1, 2025 which erroneously presented all transacted securities in American Depositary Shares ("ADSs") instead of Ordinary Shares.

SEC source: 0001104659-25-051979 · tm2515898-1_4aseq1.xml · nonDerivative · entry 4

Sinha Vikas · CIK 0001337845 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 74,440

F1 · security: This Form 4 amendment is being filed to correct the Reporting Person's Form 4 filed on May 1, 2025 which erroneously presented all transacted securities in American Depositary Shares ("ADSs") instead of Ordinary Shares.

F2 · security: Reported securities are represented by ADSs, each of which represents eight (8) Ordinary Shares of the Issuer.

F3 · kind: The sale reported in the Form 4 was effected pursuant to a Rule 10b5-1 instruction adopted by the Reporting Person on November 6, 2024, solely with the intent to cover payment of the exercise price.

F1 · shares: This Form 4 amendment is being filed to correct the Reporting Person's Form 4 filed on May 1, 2025 which erroneously presented all transacted securities in American Depositary Shares ("ADSs") instead of Ordinary Shares.

F4 · balance_after: Consists of 74,440 Ordinary Shares represented by 9,305 ADSs.

SEC source: 0001104659-25-051979 · tm2515898-1_4aseq1.xml · nonDerivative · entry 3

Sinha Vikas · CIK 0001337845 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 114,056

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 · security: This Form 4 amendment is being filed to correct the Reporting Person's Form 4 filed on May 1, 2025 which erroneously presented all transacted securities in American Depositary Shares ("ADSs") instead of Ordinary Shares.

F2 · security: Reported securities are represented by ADSs, each of which represents eight (8) Ordinary Shares of the Issuer.

F1 · shares: This Form 4 amendment is being filed to correct the Reporting Person's Form 4 filed on May 1, 2025 which erroneously presented all transacted securities in American Depositary Shares ("ADSs") instead of Ordinary Shares.

F1 · balance_after: This Form 4 amendment is being filed to correct the Reporting Person's Form 4 filed on May 1, 2025 which erroneously presented all transacted securities in American Depositary Shares ("ADSs") instead of Ordinary Shares.

SEC source: 0001104659-25-051979 · tm2515898-1_4aseq1.xml · nonDerivative · entry 2

Sinha Vikas · CIK 0001337845 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 74,440

F1 · security: This Form 4 amendment is being filed to correct the Reporting Person's Form 4 filed on May 1, 2025 which erroneously presented all transacted securities in American Depositary Shares ("ADSs") instead of Ordinary Shares.

F2 · security: Reported securities are represented by ADSs, each of which represents eight (8) Ordinary Shares of the Issuer.

F3 · kind: The sale reported in the Form 4 was effected pursuant to a Rule 10b5-1 instruction adopted by the Reporting Person on November 6, 2024, solely with the intent to cover payment of the exercise price.

F1 · shares: This Form 4 amendment is being filed to correct the Reporting Person's Form 4 filed on May 1, 2025 which erroneously presented all transacted securities in American Depositary Shares ("ADSs") instead of Ordinary Shares.

SEC source: 0001104659-25-051979 · tm2515898-1_4aseq1.xml · nonDerivative · entry 1

Sinha Vikas · CIK 0001337845 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 194,824

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 · security: This Form 4 amendment is being filed to correct the Reporting Person's Form 4 filed on May 1, 2025 which erroneously presented all transacted securities in American Depositary Shares ("ADSs") instead of Ordinary Shares.

F2 · security: Reported securities are represented by ADSs, each of which represents eight (8) Ordinary Shares of the Issuer.

F1 · shares: This Form 4 amendment is being filed to correct the Reporting Person's Form 4 filed on May 1, 2025 which erroneously presented all transacted securities in American Depositary Shares ("ADSs") instead of Ordinary Shares.

F1 · balance_after: This Form 4 amendment is being filed to correct the Reporting Person's Form 4 filed on May 1, 2025 which erroneously presented all transacted securities in American Depositary Shares ("ADSs") instead of Ordinary Shares.

SEC source: 0001104659-25-041454 · tm2513505-4_4seq1.xml · nonDerivative · entry 2

Sinha Vikas · CIK 0001337845 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 600,000

F2 · shares: Represents performance based RSUs subject to performance- and time-based vesting conditions (the "PSUs"). The amount reported herein represents the maximum number of shares of the Issuer's common stock that may be issued under this award. The shares subject to this PSU vest in tranches of a combination of performance vesting tied to the Issuer's common stock achieving certain price targets and time-based vesting over four years, provided the reporting person continues to have a service relationship with the Issuer on each such vesting date. Any PSUs that have not vested on or prior to April 27, 2029 will be forfeited for no consideration.

SEC source: 0001104659-25-041454 · tm2513505-4_4seq1.xml · nonDerivative · entry 1

Sinha Vikas · CIK 0001337845 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 100,000

F1 · shares: Represents restricted stock units ("RSUs") subject to time-based vesting conditions. Each restricted stock unit ("RSU") represents the contingent right to receive, upon vesting of the RSU, one share of the Issuer's common stock. The shares subject to this RSU vest in four annual installments over four years, with the first annual installment to vest on April 15, 2026 and each additional installment to vest annually thereafter; provided the reporting person continues to have a service relationship with the Issuer on each such vesting date.

SEC source: 0001104659-25-041402 · tm2513544-9_4seq1.xml · derivative · entry 1

Sinha Vikas · CIK 0001337845 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 96,000

Underlying: Ordinary Shares · 96,000 shares

Expires not disclosed

F1 · security: Represents an award of Restricted Share Units ("RSUs") covering American Depositary Shares ("ADSs"). Each RSU represents a contingent right to receive one (1) ADS of the Issuer. Each ADS represents eight (8) Ordinary Shares of the Issuer. The RSUs have no expiration date.

F1 · derivative.exercise_price: Represents an award of Restricted Share Units ("RSUs") covering American Depositary Shares ("ADSs"). Each RSU represents a contingent right to receive one (1) ADS of the Issuer. Each ADS represents eight (8) Ordinary Shares of the Issuer. The RSUs have no expiration date.

F1 · shares: Represents an award of Restricted Share Units ("RSUs") covering American Depositary Shares ("ADSs"). Each RSU represents a contingent right to receive one (1) ADS of the Issuer. Each ADS represents eight (8) Ordinary Shares of the Issuer. The RSUs have no expiration date.

F2 · derivative.exercise_date: The RSUs vest as to 25% of the total shares on each of August 1, 2025, November 1, 2025, February 1, 2026 and May 1, 2026 subject to the Reporting Person's continued service to the Issuer on each vesting date.

F1 · derivative.expiration_date: Represents an award of Restricted Share Units ("RSUs") covering American Depositary Shares ("ADSs"). Each RSU represents a contingent right to receive one (1) ADS of the Issuer. Each ADS represents eight (8) Ordinary Shares of the Issuer. The RSUs have no expiration date.

SEC source: 0000950170-25-025634 · ownership.xml · nonDerivative · entry 1

Sinha Vikas · CIK 0001337845 · Director · See Remarks · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 49,129

F1 · kind: Represents shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. These sales were automatic and not in the discretion of the Reporting Person.

F2 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $10.06 to $10.13. Full information regarding the number of shares sold at each separate price can be furnished to the SEC staff upon request.

SEC source: 0000950170-25-009197 · ownership.xml · nonDerivative · entry 2

Sinha Vikas · CIK 0001337845 · Director · See Remarks · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 49,432

F1 · kind: Represents shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. These sales were automatic and not in the discretion of the Reporting Person.

F4 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $9.81 to $10.04. Full information regarding the number of shares sold at each separate price can be furnished to the SEC staff upon request.

F3 · balance_after: Reflects a 1-for-23 reverse split of the Issuer's Common Stock effected on January 16, 2025.

SEC source: 0000950170-25-009197 · ownership.xml · nonDerivative · entry 1

Sinha Vikas · CIK 0001337845 · Director · See Remarks · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 49,445

F1 · kind: Represents shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. These sales were automatic and not in the discretion of the Reporting Person.

F2 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $8.81 to $9.75. Full information regarding the number of shares sold at each separate price can be furnished to the SEC staff upon request.

F3 · balance_after: Reflects a 1-for-23 reverse split of the Issuer's Common Stock effected on January 16, 2025.

SEC source: 0000950170-25-004832 · ownership.xml · nonDerivative · entry 1

Sinha Vikas · CIK 0001337845 · Director · See Remarks · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,139,915

F1 · kind: Represents shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. These sales were automatic and not in the discretion of the Reporting Person.

F2 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $0.44 to $0.462. Full information regarding the number of shares sold at each separate price can be furnished to the SEC staff upon request.

SEC source: 0000950170-24-129259 · ownership.xml · nonDerivative · entry 1

Sinha Vikas · CIK 0001337845 · Director · See Remarks · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,140,894

F1 · kind: Represents shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. These sales were automatic and not in the discretion of the Reporting Person.

F2 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $0.545 to $0.572. Full information regarding the number of shares sold at each separate price can be furnished to the SEC staff upon request.

SEC source: 0000950170-24-122333 · ownership.xml · nonDerivative · entry 1

Sinha Vikas · CIK 0001337845 · Director · See Remarks · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,144,080

F1 · kind: Represents shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. These sales were automatic and not in the discretion of the Reporting Person.

F2 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $0.856 to $0.9151. Full information regarding the number of shares sold at each separate price can be furnished to the SEC staff upon request.

SEC source: 0000950170-24-116648 · ownership.xml · nonDerivative · entry 2

Sinha Vikas · CIK 0001337845 · Director · See Remarks · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,149,216

F1 · kind: Represents shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. These sales were automatic and not in the discretion of the Reporting Person.

F3 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $0.76 to $0.7709. Full information regarding the number of shares sold at each separate price can be furnished to the SEC staff upon request.

SEC source: 0000950170-24-116648 · ownership.xml · nonDerivative · entry 1

Sinha Vikas · CIK 0001337845 · Director · See Remarks · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,151,098

F1 · kind: Represents shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. These sales were automatic and not in the discretion of the Reporting Person.

F2 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $0.7544 to $0.7964. Full information regarding the number of shares sold at each separate price can be furnished to the SEC staff upon request.

SEC source: 0000950170-24-112914 · ownership.xml · nonDerivative · entry 1

Sinha Vikas · CIK 0001337845 · Director · See Remarks · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,152,644

F1 · kind: Represents shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. These sales were automatic and not in the discretion of the Reporting Person.

SEC source: 0000950170-24-099103 · ownership.xml · nonDerivative · entry 1

Sinha Vikas · CIK 0001337845 · Director · See Remarks · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,153,584

F1 · kind: Represents shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. These sales were automatic and not in the discretion of the Reporting Person.

F2 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $0.7373 to $0.7736. Full information regarding the number of shares sold at each separate price can be furnished to the SEC staff upon request.

SEC source: 0000950170-24-092809 · ownership.xml · nonDerivative · entry 1

Sinha Vikas · CIK 0001337845 · Director · See Remarks · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,156,743

F1 · kind: Represents shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. These sales were automatic and not in the discretion of the Reporting Person.

F2 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $0.73 to $0.75. Full information regarding the number of shares sold at each separate price can be furnished to the SEC staff upon request.

SEC source: 0000950170-24-085663 · ownership.xml · nonDerivative · entry 2

Sinha Vikas · CIK 0001337845 · Director · See Remarks · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,161,994

F1 · kind: Represents shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. These sales were automatic and not in the discretion of the Reporting Person.

F3 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $0.7330 to $0.7534. Full information regarding the number of shares sold at each separate price can be furnished to the SEC staff upon request.

SEC source: 0000950170-24-085663 · ownership.xml · nonDerivative · entry 1

Sinha Vikas · CIK 0001337845 · Director · See Remarks · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,163,852

F1 · kind: Represents shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. These sales were automatic and not in the discretion of the Reporting Person.

F2 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $0.7343 to $0.7925. Full information regarding the number of shares sold at each separate price can be furnished to the SEC staff upon request.

SEC source: 0000950170-24-081518 · ownership.xml · nonDerivative · entry 1

Sinha Vikas · CIK 0001337845 · Director · See Remarks · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,165,394

F1 · kind: Represents shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. These sales were automatic and not in the discretion of the Reporting Person.

F2 · balance_after: Includes 36,337 shares acquired under the Allovir, Inc. 2020 Employee Stock Purchase Plan on June 28, 2024.

SEC source: 0000950170-24-062978 · ownership.xml · nonDerivative · entry 1

Sinha Vikas · CIK 0001337845 · Director · See Remarks · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,129,996

F1 · kind: Represents shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. These sales were automatic and not in the discretion of the Reporting Person.

F2 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $0.74 to $0.7615. Full information regarding the number of shares sold at each separate price can be furnished to the SEC staff upon request.

SEC source: 0000950170-24-054511 · ownership.xml · nonDerivative · entry 1

Sinha Vikas · CIK 0001337845 · Director · See Remarks · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,133,139

F1 · kind: Represents shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. These sales were automatic and not in the discretion of the Reporting Person.

F2 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $0.7801 to $0.8098. Full information regarding the number of shares sold at each separate price can be furnished to the SEC staff upon request.

SEC source: 0001104659-24-054958 · tm2412993-5_4seq1.xml · derivative · entry 1

Sinha Vikas · CIK 0001337845 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 240,000

Underlying: Ordinary Shares · 240,000 shares

Expires 2034-04-28

F1 · derivative.exercise_price: The number of securities underlying the option and the exercise price therefor are listed in terms of Ordinary Shares, however, each security is represented by American Depositary Shares, each of which represents eight (8) Ordinary Shares of the Issuer.

F1 · shares: The number of securities underlying the option and the exercise price therefor are listed in terms of Ordinary Shares, however, each security is represented by American Depositary Shares, each of which represents eight (8) Ordinary Shares of the Issuer.

F2 · derivative.exercise_date: The option vests and becomes exercisable as to 25% on each of July 29, 2024, October 29, 2024, January 29, 2025 and April 29, 2025.

F1 · derivative.underlying_shares: The number of securities underlying the option and the exercise price therefor are listed in terms of Ordinary Shares, however, each security is represented by American Depositary Shares, each of which represents eight (8) Ordinary Shares of the Issuer.

F1 · balance_after: The number of securities underlying the option and the exercise price therefor are listed in terms of Ordinary Shares, however, each security is represented by American Depositary Shares, each of which represents eight (8) Ordinary Shares of the Issuer.