Kastelein Johannes Jacob Pieter
Reporting Owner SEC Filing List

CIK: 0002000389

Form Type:

Year

Form	Filer	Subject Company	Filing Agent	Date	Actions
4	Statement of changes in beneficial owner...	Newamsterdam Pharma Co N.v.	Donnelley Financial Solutions /fa/	03/09/2026	View ... Create Alert Filing Info Download PDF Copy Link
4	Statement of changes in beneficial owner...	Kastelein Johannes Jacob Pieter	Donnelley Financial Solutions /fa/	03/09/2026	View ... Create Alert Filing Info Download PDF Copy Link
4	Statement of changes in beneficial owner...	Kastelein Johannes Jacob Pieter		03/09/2026	View ... Create Alert Filing Info Download PDF Copy Link
4	Statement of changes in beneficial owner...	Newamsterdam Pharma Co N.v.	Donnelley Financial Solutions /fa/	02/24/2026	View ... Create Alert Filing Info Download PDF Copy Link
4	Statement of changes in beneficial owner...	Kastelein Johannes Jacob Pieter	Donnelley Financial Solutions /fa/	02/24/2026	View ... Create Alert Filing Info Download PDF Copy Link
4	Statement of changes in beneficial owner...	Kastelein Johannes Jacob Pieter		02/24/2026	View ... Create Alert Filing Info Download PDF Copy Link
4	Statement of changes in beneficial owner...	Newamsterdam Pharma Co N.v.	Donnelley Financial Solutions /fa/	01/07/2026	View ... Create Alert Filing Info Download PDF Copy Link
4	Statement of changes in beneficial owner...	Kastelein Johannes Jacob Pieter	Donnelley Financial Solutions /fa/	01/07/2026	View ... Create Alert Filing Info Download PDF Copy Link
4	Statement of changes in beneficial owner...	Kastelein Johannes Jacob Pieter	Donnelley Financial Solutions /fa/	01/07/2026	View ... Create Alert Filing Info Download PDF Copy Link
144	Filing for proposed sale of securities u...	Newamsterdam Pharma Co N.v.	Global Shares Financial Services Inc / Fa /fa	01/05/2026	View ... Create Alert Filing Info Download PDF Copy Link
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Kastelein Johannes Jacob Pieter 's Ownership Transactions

Issuer	Filing Date	Transaction Date	Transaction Type	Shares	Price	Total Amt	Shares Owned