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Nasdaq · USD

NAMS

NewAmsterdam Pharma Co N.V.

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Tapewire entity
1826
SEC CIK
0001936258
Parsed reports
132

Last 12 months

Inside the activity.

1 purchase rows · 43 sale rows

Disclosed non-derivative P/S rows, by transaction month. Includes amendments and private transactions.
Monthly counts
MonthPurchasesSales
Nov 202500
Dec 202503
Jan 2026015
Feb 202609
Mar 202607
Apr 202600
May 202601
Jun 202602
Jul 202603
Aug 202601
Sep 202612
Oct 202600

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
February 25, 2026 Filed Feb 27, 2026 02:40 UTC
Davidson Michael H.Director · Chief Executive Officer
SaleOrdinary Shares 1,300 $36.68 $47,684.00
Disclosure

SEC source: 0001193125-26-078718 · ownership.xml · nonDerivative · entry 7

Davidson Michael H. · CIK 0001573785 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 459,859

F6 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $36.58 to $36.74 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold in each transaction.

Read SEC document
February 25, 2026 Filed Feb 27, 2026 02:40 UTC
Davidson Michael H.Director · Chief Executive Officer
SaleOrdinary Shares 10,436 $35.96 $375,278.56
Disclosure

SEC source: 0001193125-26-078718 · ownership.xml · nonDerivative · entry 6

Davidson Michael H. · CIK 0001573785 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 461,159

F5 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $35.57 to $36.55 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold in each transaction.

Read SEC document
February 25, 2026 Filed Feb 27, 2026 02:40 UTC
Davidson Michael H.Director · Chief Executive Officer
SaleOrdinary Shares 46,517 $35.11 $1,633,211.87
Disclosure

SEC source: 0001193125-26-078718 · ownership.xml · nonDerivative · entry 5

Davidson Michael H. · CIK 0001573785 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 471,595

F4 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $34.57 to $35.56 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold in each transaction.

Read SEC document
February 25, 2026 Filed Feb 27, 2026 02:40 UTC
Davidson Michael H.Director · Chief Executive Officer
Exercise / conversionOrdinary Shares 58,253 Not disclosed Not disclosed
Disclosure

SEC source: 0001193125-26-078718 · ownership.xml · nonDerivative · entry 4

Davidson Michael H. · CIK 0001573785 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 518,112

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 exercise price of the option is EUR 1.16392.

Read SEC document
February 24, 2026 Filed Feb 27, 2026 02:40 UTC
Davidson Michael H.Director · Chief Executive Officer
Exercise / conversionOption (right to buy) · Derivative 64,708 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-078718 · ownership.xml · derivative · entry 12

Davidson Michael H. · CIK 0001573785 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 924,559

Underlying: Ordinary Shares · 64,708 shares

Expires 2031-07-06

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 exercise price of the option is EUR 1.16392.

F10 · derivative.exercise_date: The option was granted on November 22, 2022 to replace options originally granted on July 6, 2021 which was cancelled in connection with the consummation of NewAmsterdam Pharma Company N.V.'s business combination with Frazier Lifesciences Acquisition Corporation. 25% of the shares underlying the options vested on August 1, 2021, the one-year anniversary of vesting start date, with the remaining shares vesting in equal monthly installments thereafter for three years, subject to the Reporting Person's continued service through each such date.

Read SEC document
February 24, 2026 Filed Feb 27, 2026 02:40 UTC
Davidson Michael H.Director · Chief Executive Officer
SaleOrdinary Shares 3,161 $36.46 $115,250.06
Disclosure

SEC source: 0001193125-26-078718 · ownership.xml · nonDerivative · entry 3

Davidson Michael H. · CIK 0001573785 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 459,859

F3 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $36.43 to $36.50 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold in each transaction.

Read SEC document
February 24, 2026 Filed Feb 27, 2026 02:40 UTC
Davidson Michael H.Director · Chief Executive Officer
SaleOrdinary Shares 61,547 $36.13 $2,223,693.11
Disclosure

SEC source: 0001193125-26-078718 · ownership.xml · nonDerivative · entry 2

Davidson Michael H. · CIK 0001573785 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 463,020

F2 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $35.43 to $36.42 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold in each transaction.

Read SEC document
February 24, 2026 Filed Feb 27, 2026 02:40 UTC
Davidson Michael H.Director · Chief Executive Officer
Exercise / conversionOrdinary Shares 64,708 Not disclosed Not disclosed
Disclosure

SEC source: 0001193125-26-078718 · ownership.xml · nonDerivative · entry 1

Davidson Michael H. · CIK 0001573785 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 524,567

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 exercise price of the option is EUR 1.16392.

Read SEC document
February 20, 2026 Filed Feb 24, 2026 21:40 UTC
Kastelein Johannes Jacob PieterDirector · Chief Scientific Officer
SaleOrdinary Shares 30,789 $35.46 $1,091,777.94
Disclosure

SEC source: 0001193125-26-067260 · ownership.xml · nonDerivative · entry 2

Kastelein Johannes Jacob Pieter · CIK 0002000389 · Director · Chief Scientific Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 53,500

F2 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $35.24 to $35.86 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold in each transaction.

Read SEC document
February 20, 2026 Filed Feb 24, 2026 21:40 UTC
Kastelein Johannes Jacob PieterDirector · Chief Scientific Officer
SaleOrdinary Shares 14,692 $35.00 $514,220.00
Disclosure

SEC source: 0001193125-26-067260 · ownership.xml · nonDerivative · entry 1

Kastelein Johannes Jacob Pieter · CIK 0002000389 · Director · Chief Scientific Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 84,289

F1 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $34.24 to $35.23 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold in each transaction.

Read SEC document
January 28, 2026 Filed Jan 29, 2026 21:40 UTC
Kooij Louise FrederikaChief Accounting Officer
Exercise / conversionOption (right to buy) · Derivative 32,612 $0.00 Strike: $10.90 $0.00
Disclosure

SEC source: 0001193125-26-029526 · ownership.xml · derivative · entry 6

Kooij Louise Frederika · CIK 0002004379 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 73,134

Underlying: Ordinary Shares · 32,612 shares

Expires 2033-01-01

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_date: The option was granted on January 1, 2023. 25% of the shares underlying the option vest on the one-year anniversary of vesting start date, with the remaining shares vesting in equal monthly installments thereafter for three years, subject to the Reporting Person's continued service through each such date.

Read SEC document
January 28, 2026 Filed Jan 29, 2026 21:40 UTC
Kooij Louise FrederikaChief Accounting Officer
SaleOrdinary Shares 32,612 $31.80 $1,037,061.60
Disclosure

SEC source: 0001193125-26-029526 · ownership.xml · nonDerivative · entry 4

Kooij Louise Frederika · CIK 0002004379 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 24,353

F2 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $31.58 to $32.53 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold in each transaction.

Read SEC document
January 28, 2026 Filed Jan 29, 2026 21:40 UTC
Kooij Louise FrederikaChief Accounting Officer
Exercise / conversionOrdinary Shares 32,612 $10.90 $355,470.80
Disclosure

SEC source: 0001193125-26-029526 · ownership.xml · nonDerivative · entry 3

Kooij Louise Frederika · CIK 0002004379 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 56,965

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.

Read SEC document
January 27, 2026 Filed Jan 29, 2026 21:40 UTC
Kooij Louise FrederikaChief Accounting Officer
Exercise / conversionOption (right to buy) · Derivative 39,816 $0.00 Strike: $10.90 $0.00
Disclosure

SEC source: 0001193125-26-029526 · ownership.xml · derivative · entry 5

Kooij Louise Frederika · CIK 0002004379 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 105,746

Underlying: Ordinary Shares · 39,816 shares

Expires 2033-01-01

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_date: The option was granted on January 1, 2023. 25% of the shares underlying the option vest on the one-year anniversary of vesting start date, with the remaining shares vesting in equal monthly installments thereafter for three years, subject to the Reporting Person's continued service through each such date.

Read SEC document
January 27, 2026 Filed Jan 29, 2026 21:40 UTC
Kooij Louise FrederikaChief Accounting Officer
SaleOrdinary Shares 39,816 $32.62 $1,298,797.92
Disclosure

SEC source: 0001193125-26-029526 · ownership.xml · nonDerivative · entry 2

Kooij Louise Frederika · CIK 0002004379 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 24,353

F1 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $32.29 to $32.97 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold in each transaction.

Read SEC document
January 27, 2026 Filed Jan 29, 2026 21:40 UTC
Kooij Louise FrederikaChief Accounting Officer
Exercise / conversionOrdinary Shares 39,816 $10.90 $433,994.40
Disclosure

SEC source: 0001193125-26-029526 · ownership.xml · nonDerivative · entry 1

Kooij Louise Frederika · CIK 0002004379 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 64,169

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.

Read SEC document
January 26, 2026 Filed Jan 27, 2026 22:38 UTC
Kooij Louise FrederikaChief Accounting Officer
Exercise / conversionOption (right to buy) · Derivative 34,400 $0.00 Strike: $10.90 $0.00
Disclosure

SEC source: 0001193125-26-025012 · ownership.xml · derivative · entry 8

Kooij Louise Frederika · CIK 0002004379 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 145,562

Underlying: Ordinary Shares · 34,400 shares

Expires 2033-01-01

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 · derivative.exercise_date: The option was granted on January 1, 2023. 25% of the shares underlying the option vest on the one-year anniversary of vesting start date, with the remaining shares vesting in equal monthly installments thereafter for three years, subject to the Reporting Person's continued service through each such date.

Read SEC document
January 26, 2026 Filed Jan 27, 2026 22:38 UTC
Kooij Louise FrederikaChief Accounting Officer
SaleOrdinary Shares 309 $33.45 $10,336.05
Disclosure

SEC source: 0001193125-26-025012 · ownership.xml · nonDerivative · entry 6

Kooij Louise Frederika · CIK 0002004379 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 24,353

F4 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $33.40 to $33.51 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold in each transaction.

Read SEC document
January 26, 2026 Filed Jan 27, 2026 22:38 UTC
Kooij Louise FrederikaChief Accounting Officer
SaleOrdinary Shares 34,091 $32.77 $1,117,162.07
Disclosure

SEC source: 0001193125-26-025012 · ownership.xml · nonDerivative · entry 5

Kooij Louise Frederika · CIK 0002004379 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 24,662

F3 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $32.40 to $33.38 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold in each transaction.

Read SEC document
January 26, 2026 Filed Jan 27, 2026 22:38 UTC
Kooij Louise FrederikaChief Accounting Officer
Exercise / conversionOrdinary Shares 34,400 $10.90 $374,960.00
Disclosure

SEC source: 0001193125-26-025012 · ownership.xml · nonDerivative · entry 4

Kooij Louise Frederika · CIK 0002004379 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 58,753

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.

Read SEC document
January 23, 2026 Filed Jan 27, 2026 22:38 UTC
Kooij Louise FrederikaChief Accounting Officer
Exercise / conversionOption (right to buy) · Derivative 38,172 $0.00 Strike: $10.90 $0.00
Disclosure

SEC source: 0001193125-26-025012 · ownership.xml · derivative · entry 7

Kooij Louise Frederika · CIK 0002004379 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 179,962

Underlying: Ordinary Shares · 38,172 shares

Expires 2033-01-01

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 · derivative.exercise_date: The option was granted on January 1, 2023. 25% of the shares underlying the option vest on the one-year anniversary of vesting start date, with the remaining shares vesting in equal monthly installments thereafter for three years, subject to the Reporting Person's continued service through each such date.

Read SEC document
January 23, 2026 Filed Jan 27, 2026 22:38 UTC
Kooij Louise FrederikaChief Accounting Officer
SaleOrdinary Shares 12,767 $34.37 $438,801.79
Disclosure

SEC source: 0001193125-26-025012 · ownership.xml · nonDerivative · entry 3

Kooij Louise Frederika · CIK 0002004379 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 24,353

F2 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $34.06 to $34.75 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold in each transaction.

Read SEC document
January 23, 2026 Filed Jan 27, 2026 22:38 UTC
Kooij Louise FrederikaChief Accounting Officer
SaleOrdinary Shares 25,405 $33.44 $849,543.20
Disclosure

SEC source: 0001193125-26-025012 · ownership.xml · nonDerivative · entry 2

Kooij Louise Frederika · CIK 0002004379 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 37,120

F1 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $33.06 to $34.05 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold in each transaction.

Read SEC document
January 23, 2026 Filed Jan 27, 2026 22:38 UTC
Kooij Louise FrederikaChief Accounting Officer
Exercise / conversionOrdinary Shares 38,172 $10.90 $416,074.80
Disclosure

SEC source: 0001193125-26-025012 · ownership.xml · nonDerivative · entry 1

Kooij Louise Frederika · CIK 0002004379 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 62,525

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.

Read SEC document
January 21, 2026 Filed Jan 22, 2026 22:24 UTC
Somaiya Mayur IanChief Financial Officer
Exercise / conversionOption (Right to Buy) · Derivative 39,784 $0.00 Strike: $9.26 $0.00
Disclosure

SEC source: 0001193125-26-019686 · ownership.xml · derivative · entry 9

Somaiya Mayur Ian · CIK 0001760303 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 662,814

Underlying: Ordinary Shares · 39,784 shares

Expires 2033-11-01

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.

F7 · derivative.exercise_date: The option was granted on November 1, 2023. 25% of the shares underlying the option vested on the one-year anniversary of the vesting start date, with the remaining shares vesting in equal monthly installments thereafter for three years, subject to the Reporting Person's continued service through each such date.

Read SEC document
January 21, 2026 Filed Jan 22, 2026 22:24 UTC
Somaiya Mayur IanChief Financial Officer
SaleOrdinary Shares 24,362 $33.80 $823,435.60
Disclosure

SEC source: 0001193125-26-019686 · ownership.xml · nonDerivative · entry 7

Somaiya Mayur Ian · CIK 0001760303 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 58,382

F1 · kind: This transaction was effected pursuant to a trading plan adopted by the Reporting Person in accordance with Rule 10b5-1 of the Securities Exchange Act of 1934, as amended.

F6 · price: These shares were sold in multiple transactions at prices ranging from $33.48 per share to $34.31 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold in each transaction.

Read SEC document
January 21, 2026 Filed Jan 22, 2026 22:24 UTC
Somaiya Mayur IanChief Financial Officer
SaleOrdinary Shares 15,422 $33.25 $512,781.50
Disclosure

SEC source: 0001193125-26-019686 · ownership.xml · nonDerivative · entry 6

Somaiya Mayur Ian · CIK 0001760303 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 82,744

F1 · kind: This transaction was effected pursuant to a trading plan adopted by the Reporting Person in accordance with Rule 10b5-1 of the Securities Exchange Act of 1934, as amended.

F5 · price: These shares were sold in multiple transactions at prices ranging from $32.48 per share to $33.47 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold in each transaction.

Read SEC document
January 21, 2026 Filed Jan 22, 2026 22:24 UTC
Somaiya Mayur IanChief Financial Officer
Exercise / conversionOrdinary Shares 39,784 $9.26 $368,399.84
Disclosure

SEC source: 0001193125-26-019686 · ownership.xml · nonDerivative · entry 5

Somaiya Mayur Ian · CIK 0001760303 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 98,166

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.

Read SEC document
January 20, 2026 Filed Jan 22, 2026 22:24 UTC
Somaiya Mayur IanChief Financial Officer
Exercise / conversionOption (Right to Buy) · Derivative 60,216 $0.00 Strike: $9.26 $0.00
Disclosure

SEC source: 0001193125-26-019686 · ownership.xml · derivative · entry 8

Somaiya Mayur Ian · CIK 0001760303 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 702,598

Underlying: Ordinary Shares · 60,216 shares

Expires 2033-11-01

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.

F7 · derivative.exercise_date: The option was granted on November 1, 2023. 25% of the shares underlying the option vested on the one-year anniversary of the vesting start date, with the remaining shares vesting in equal monthly installments thereafter for three years, subject to the Reporting Person's continued service through each such date.

Read SEC document
January 20, 2026 Filed Jan 22, 2026 22:24 UTC
Somaiya Mayur IanChief Financial Officer
SaleOrdinary Shares 19,604 $32.38 $634,777.52
Disclosure

SEC source: 0001193125-26-019686 · ownership.xml · nonDerivative · entry 4

Somaiya Mayur Ian · CIK 0001760303 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 58,382

F1 · kind: This transaction was effected pursuant to a trading plan adopted by the Reporting Person in accordance with Rule 10b5-1 of the Securities Exchange Act of 1934, as amended.

F4 · price: These shares were sold in multiple transactions at prices ranging from $32.29 per share to $32.58 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold in each transaction.

Read SEC document
January 20, 2026 Filed Jan 22, 2026 22:24 UTC
Somaiya Mayur IanChief Financial Officer
SaleOrdinary Shares 39,712 $31.78 $1,262,047.36
Disclosure

SEC source: 0001193125-26-019686 · ownership.xml · nonDerivative · entry 3

Somaiya Mayur Ian · CIK 0001760303 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 77,986

F1 · kind: This transaction was effected pursuant to a trading plan adopted by the Reporting Person in accordance with Rule 10b5-1 of the Securities Exchange Act of 1934, as amended.

F3 · price: These shares were sold in multiple transactions at prices ranging from $31.29 per share to $32.28 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold in each transaction.

Read SEC document
January 20, 2026 Filed Jan 22, 2026 22:24 UTC
Somaiya Mayur IanChief Financial Officer
SaleOrdinary Shares 900 $30.64 $27,576.00
Disclosure

SEC source: 0001193125-26-019686 · ownership.xml · nonDerivative · entry 2

Somaiya Mayur Ian · CIK 0001760303 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 117,698

F1 · kind: This transaction was effected pursuant to a trading plan adopted by the Reporting Person in accordance with Rule 10b5-1 of the Securities Exchange Act of 1934, as amended.

F2 · price: These shares were sold in multiple transactions at prices ranging from $30.17 per share to $30.85 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold in each transaction.

Read SEC document
January 20, 2026 Filed Jan 22, 2026 22:24 UTC
Somaiya Mayur IanChief Financial Officer
Exercise / conversionOrdinary Shares 60,216 $9.26 $557,600.16
Disclosure

SEC source: 0001193125-26-019686 · ownership.xml · nonDerivative · entry 1

Somaiya Mayur Ian · CIK 0001760303 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 118,598

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.

Read SEC document
January 07, 2026 Filed Jan 7, 2026 23:27 UTC
Kooij Louise FrederikaChief Accounting Officer
GrantOption (right to buy) · Derivative 53,500 $0.00 Strike: $35.45 $0.00
Disclosure

SEC source: 0001193125-26-006659 · ownership.xml · derivative · entry 3

Kooij Louise Frederika · CIK 0002004379 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 53,500

Underlying: Ordinary Shares · 53,500 shares

Expires 2036-01-07

F5 · derivative.exercise_date: 25% of the shares underlying the option will vest on Janaury 2, 2027, the one-year anniversary of the vesting start date, with the remaining shares vesting in equal monthly installments thereafter for three years, subject to the Reporting Person's continued service through each such date.

Read SEC document
January 07, 2026 Filed Jan 7, 2026 23:27 UTC
Kooij Louise FrederikaChief Accounting Officer
GrantOrdinary Shares 12,000 Not disclosed Not disclosed
Disclosure

SEC source: 0001193125-26-006659 · ownership.xml · nonDerivative · entry 2

Kooij Louise Frederika · CIK 0002004379 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 24,353

F3 · shares: Represents RSUs, each representing a contingent right to receive one ordinary share. 1/3 of the RSUs will vest on each of the first, second and third anniversaries of the vesting start date, subject to the Reporting Person's continued service through each such date.

F4 · price: Each RSU was granted on January 7, 2026 for no consideration.

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January 07, 2026 Filed Jan 7, 2026 23:31 UTC
Kastelein Johannes Jacob PieterDirector · Chief Scientific Officer
GrantOption (right to buy) · Derivative 115,000 $0.00 Strike: $35.45 $0.00
Disclosure

SEC source: 0001193125-26-006662 · ownership.xml · derivative · entry 3

Kastelein Johannes Jacob Pieter · CIK 0002000389 · Director · Chief Scientific Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 115,000

Underlying: Ordinary Shares · 115,000 shares

Expires 2036-01-07

F5 · derivative.exercise_date: 25% of the shares underlying the option will vest on Janaury 2, 2027, the one-year anniversary of the vesting start date, with the remaining shares vesting in equal monthly installments thereafter for three years, subject to the Reporting Person's continued service through each such date.

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January 07, 2026 Filed Jan 7, 2026 23:31 UTC
Kastelein Johannes Jacob PieterDirector · Chief Scientific Officer
GrantOrdinary Shares 25,500 Not disclosed Not disclosed
Disclosure

SEC source: 0001193125-26-006662 · ownership.xml · nonDerivative · entry 2

Kastelein Johannes Jacob Pieter · CIK 0002000389 · Director · Chief Scientific Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 98,981

F3 · shares: Represents RSUs, each representing a contingent right to receive one ordinary share. 1/3 of the RSUs will vest on each of the first, second and third anniversaries of the vesting start date, subject to the Reporting Person's continued service through each such date.

F4 · price: Each RSU was granted on January 7, 2026 for no consideration.

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January 07, 2026 Filed Jan 7, 2026 23:27 UTC
Somaiya Mayur IanChief Financial Officer
GrantOption (right to buy) · Derivative 115,000 $0.00 Strike: $35.45 $0.00
Disclosure

SEC source: 0001193125-26-006658 · ownership.xml · derivative · entry 3

Somaiya Mayur Ian · CIK 0001760303 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 115,000

Underlying: Ordinary Shares · 115,000 shares

Expires 2036-01-07

F5 · derivative.exercise_date: 25% of the shares underlying the option will vest on Janaury 2, 2027, the one-year anniversary of the vesting start date, with the remaining shares vesting in equal monthly installments thereafter for three years, subject to the Reporting Person's continued service through each such date.

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January 07, 2026 Filed Jan 7, 2026 23:27 UTC
Somaiya Mayur IanChief Financial Officer
GrantOrdinary Shares 25,500 Not disclosed Not disclosed
Disclosure

SEC source: 0001193125-26-006658 · ownership.xml · nonDerivative · entry 2

Somaiya Mayur Ian · CIK 0001760303 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 58,382

F3 · shares: Represents RSUs, each representing a contingent right to receive one ordinary share. 1/3 of the RSUs will vest on each of the first, second and third anniversaries of the vesting start date, subject to the Reporting Person's continued service through each such date.

F4 · price: Each RSU was granted on January 7, 2026 for no consideration.

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January 07, 2026 Filed Jan 9, 2026 19:34 UTC GrantOption (right to buy) · Derivative 15,300 $0.00 Strike: $35.45 $0.00
Disclosure

SEC source: 0001193125-26-009274 · ownership.xml · derivative · entry 2

van der Kamp Hilde Johanna · CIK 0002000565 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,300

Underlying: Ordinary Shares · 15,300 shares

Expires 2036-01-07

F3 · derivative.exercise_date: All of the ordinary shares underlying the option will vest on January 2, 2027, the one-year anniversary of the vesting start date, subject to the Reporting Person's continued service through such date.

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January 07, 2026 Filed Jan 9, 2026 19:34 UTC GrantOrdinary Shares 3,400 Not disclosed Not disclosed
Disclosure

SEC source: 0001193125-26-009274 · ownership.xml · nonDerivative · entry 1

van der Kamp Hilde Johanna · CIK 0002000565 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,360

F1 · shares: Represents restricted stock units (RSUs), each representing a contingent right to receive one ordinary share. All of the RSUs will vest on the one-year anniversary of the vesting start date, subject to the Reporting Person's continued service through such date.

F2 · price: Each RSU was granted on January 7, 2026 for no consideration.

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January 07, 2026 Filed Jan 10, 2026 00:34 UTC GrantOption (right to buy) · Derivative 15,300 $0.00 Strike: $35.45 $0.00
Disclosure

SEC source: 0001193125-26-009273 · ownership.xml · derivative · entry 2

Gulfo Adele M. · CIK 0001647102 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,300

Underlying: Ordinary Shares · 15,300 shares

Expires 2036-01-07

F3 · derivative.exercise_date: All of the ordinary shares underlying the option will vest on January 2, 2027, the one-year anniversary of the vesting start date, subject to the Reporting Person's continued service through such date.

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January 07, 2026 Filed Jan 10, 2026 00:34 UTC GrantOrdinary Shares 3,400 Not disclosed Not disclosed
Disclosure

SEC source: 0001193125-26-009273 · ownership.xml · nonDerivative · entry 1

Gulfo Adele M. · CIK 0001647102 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,260

F1 · shares: Represents restricted stock units (RSUs), each representing a contingent right to receive one ordinary share. All of the RSUs will vest on the one-year anniversary of the vesting start date, subject to the Reporting Person's continued service through such date.

F2 · price: Each RSU was granted on January 7, 2026 for no consideration.

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January 07, 2026 Filed Jan 10, 2026 00:34 UTC
Davidson Michael H.Director · Chief Executive Officer
GrantOption (right to buy) · Derivative 364,000 $0.00 Strike: $35.45 $0.00
Disclosure

SEC source: 0001193125-26-009272 · ownership.xml · derivative · entry 3

Davidson Michael H. · CIK 0001573785 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 364,000

Underlying: Ordinary Shares · 364,000 shares

Expires 2036-01-07

F5 · derivative.exercise_date: 25% of the shares underlying the option will vest on Janaury 2, 2027, the one-year anniversary of the vesting start date, with the remaining shares vesting in equal monthly installments thereafter for three years, subject to the Reporting Person's continued service through each such date.

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January 07, 2026 Filed Jan 10, 2026 00:34 UTC
Davidson Michael H.Director · Chief Executive Officer
GrantOrdinary Shares 81,000 Not disclosed Not disclosed
Disclosure

SEC source: 0001193125-26-009272 · ownership.xml · nonDerivative · entry 2

Davidson Michael H. · CIK 0001573785 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 459,859

F3 · shares: Represents RSUs, each representing a contingent right to receive one ordinary share. 1/3 of the RSUs will vest on each of the first, second and third anniversaries of the vesting start date, subject to the Reporting Person's continued service through each such date.

F4 · price: Each RSU was granted on January 7, 2026 for no consideration.

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January 07, 2026 Filed Jan 10, 2026 00:34 UTC
Davidson Michael H.Director · Chief Executive Officer
SaleOrdinary Shares 11,582 Not disclosed Not disclosed
Disclosure

SEC source: 0001193125-26-009272 · ownership.xml · nonDerivative · entry 1

Davidson Michael H. · CIK 0001573785 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 378,859

F1 · kind: Represents pre-arranged sale of shares by the Reporting Person solely to cover tax withholding obligations in connection with the vesting and settlement of restricted stock units (RSUs) pursuant to sell-to-cover agreement entered into with the Issuer. The sale does not represent a discretionary transaction by 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 $35.24 to $35.59 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold in each transaction.

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January 07, 2026 Filed Jan 10, 2026 00:34 UTC GrantOption (right to buy) · Derivative 15,300 $0.00 Strike: $35.45 $0.00
Disclosure

SEC source: 0001193125-26-009271 · ownership.xml · derivative · entry 2

Lewis William · CIK 0001402051 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,300

Underlying: Ordinary Shares · 15,300 shares

Expires 2036-01-07

F3 · derivative.exercise_date: All of the ordinary shares underlying the option will vest on January 2, 2027, the one-year anniversary of the vesting start date, subject to the Reporting Person's continued service through such date.

Read SEC document
January 07, 2026 Filed Jan 10, 2026 00:34 UTC GrantOrdinary Shares 3,400 Not disclosed Not disclosed
Disclosure

SEC source: 0001193125-26-009271 · ownership.xml · nonDerivative · entry 1

Lewis William · CIK 0001402051 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,360

F1 · shares: Represents restricted stock units (RSUs), each representing a contingent right to receive one ordinary share. All of the RSUs will vest on the one-year anniversary of the vesting start date, subject to the Reporting Person's continued service through such date.

F2 · price: Each RSU was granted on January 7, 2026 for no consideration.

Read SEC document
January 07, 2026 Filed Jan 10, 2026 00:33 UTC GrantOption (right to buy) · Derivative 15,300 $0.00 Strike: $35.45 $0.00
Disclosure

SEC source: 0001193125-26-009270 · ownership.xml · derivative · entry 2

Smither John W · CIK 0001559583 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,300

Underlying: Ordinary Shares · 15,300 shares

Expires 2036-01-07

F3 · derivative.exercise_date: All of the ordinary shares underlying the option will vest on January 2, 2027, the one-year anniversary of the vesting start date, subject to the Reporting Person's continued service through such date.

Read SEC document
January 07, 2026 Filed Jan 10, 2026 00:33 UTC GrantOrdinary Shares 3,400 Not disclosed Not disclosed
Disclosure

SEC source: 0001193125-26-009270 · ownership.xml · nonDerivative · entry 1

Smither John W · CIK 0001559583 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,360

F1 · shares: Represents restricted stock units (RSUs), each representing a contingent right to receive one ordinary share. All of the RSUs will vest on the one-year anniversary of the vesting start date, subject to the Reporting Person's continued service through such date.

F2 · price: Each RSU was granted on January 7, 2026 for no consideration.

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.