Kastelein Johannes Jacob Pieter sold NAMS
September 30, 2026 · Form 4 insider transaction
Kastelein Johannes Jacob Pieter sold 50,246 shares of NewAmsterdam Pharma Company N.V. at $25.03 per share, a transaction worth $1.26M. The trade was recorded as open-market sale and disclosed on an SEC Form 4, filed 2 days after the transaction.
Footnotes
The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $25.00 to $25.10 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.; These Ordinary Shares are held by Futurum B.V. ("Futurum") through NAP PoolCo B.V. ("PoolCo") for the benefit of the Reporting Person. The Reporting Person exercises sole voting and investment control over the securities held by Futurum through PoolCo. PoolCo has no voting or investment control or pecuniary interest in the securities held on behalf of Futurum.