KASTELEIN JOHANNES JACOB PIETER (Chief Scientific Officer) sold 81.2% of their position (300K shares) of NEWAMSTERDAM PHARMA CO N.V. on the open market
Open‑market sale worth $9.09M — a major position exit. Review remaining holdings and any 10b5‑1 plan disclosures.
Ordinary Shares
Shares
+104.47K
Price / share
—
Trade value
—
% of position
Ordinary Shares
Shares
−104.47K
Price / share
$30.30
Trade value
$3.17M
% of position
Ordinary Shares
Shares
+94.12K
Price / share
—
Trade value
—
% of position
Ordinary Shares
Shares
−94.12K
Price / share
$30.32
Trade value
$2.85M
% of position
Ordinary Shares
Shares
+101.41K
Price / share
—
Trade value
—
% of position
Ordinary Shares
Shares
−101.41K
Price / share
$30.29
Trade value
$3.07M
% of position
Net shares
+0.00
Net value
-$9.09M
| Security | Date | Type | Shares | Price / Share | Trade Value | % of Position | Held Before | Held After |
|---|---|---|---|---|---|---|---|---|
| Ordinary Shares Indirect | 3/5/2026 | M · Option Exercise | +104.47K | — | — | 150.7% | 69.30K | 173.77K |
| Ordinary Shares Indirect | 3/5/2026 | S · Sale | −104.47K | $30.30 | $3.17M | 60.1% | 173.77K | 69.30K |
| Ordinary Shares Indirect | 3/6/2026 | M · Option Exercise | +94.12K | — | — | 135.8% | 69.30K | 163.43K |
| Ordinary Shares Indirect | 3/6/2026 | S · Sale | −94.12K | $30.32 | $2.85M | 57.6% | 163.43K | 69.30K |
| Ordinary Shares Indirect | 3/9/2026 | M · Option Exercise | +101.41K | — | — | 146.3% | 69.30K | 170.71K |
| Ordinary Shares Indirect | 3/9/2026 | S · Sale | −101.41K | $30.29 | $3.07M | 59.4% | 170.71K | 69.30K |
| Total | +0.00 | -$9.09M | ||||||
Option (right to buy)
Ordinary Shares
104.47K shares
Shares
−104.47K
Strike price
Held after
715.76K
Exercisable
—
Option (right to buy)
Ordinary Shares
94.12K shares
Shares
−94.12K
Strike price
Held after
621.64K
Exercisable
—
Option (right to buy)
Ordinary Shares
101.41K shares
Shares
−101.41K
Strike price
Held after
520.23K
Exercisable
—
| Security | Converts To | Date | Type | Shares | Strike Price | Exercisable | Held After |
|---|---|---|---|---|---|---|---|
| Option (right to buy) Indirect | Ordinary Shares104.47K shares | 3/5/2026 | M · Option Exercise | −104.47K | — | 715.76K | |
| Option (right to buy) Indirect | Ordinary Shares94.12K shares | 3/6/2026 | M · Option Exercise | −94.12K | — | 621.64K | |
| Option (right to buy) Indirect | Ordinary Shares101.41K shares | 3/9/2026 | M · Option Exercise | −101.41K | — | 520.23K |