Johannes Jacob Pieter Kastelein - Chief Scientific Officer, Director at NewAmsterdam Pharma Co N.V.

Insider Transactions and Holdings

Entity Type: Individual
Role: Chief Scientific Officer, Director
Issuer Symbol: NAMS, NAMSW on Nasdaq
All Insider Reports: All Insider Reports

Johannes Jacob Pieter Kastelein - trading volume in the past year for NewAmsterdam Pharma Co N.V.

	Shares	%	Avg Price	Total $
Buys
Sells	-106,000	100%	$25.20	-$2,671,140
Net	-106,000	-100%		-$2,671,140

Holdings reported by Johannes Jacob Pieter Kastelein for NewAmsterdam Pharma Co N.V.

Security	Num Shares	Value	Price $	Transaction Date	Ownership	Underlying Class	Underlying Amount
Ordinary Shares	98,981	$3,473,193	$35.09	07 Jan 2026	Direct
Option (right to buy)	820,229			24 Mar 2025	Indirect	Ordinary Shares
Option (right to buy)	115,000			07 Jan 2026	Direct	Ordinary Shares
Restricted Stock Unit	0			26 Mar 2025	Direct	Ordinary Shares

Transactions reported by Johannes Jacob Pieter Kastelein for NewAmsterdam Pharma Co N.V.

Sym	Class	Transaction	%	Value $	* Price $	Shares	Shares After	Date	Ownership

* An asterisk sign (*) next to the price indicates that the price is likely invalid.