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.

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 53,500 $1,897,110 $35.46 20 Feb 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.