All insiders
KP
Kastelein Johannes Jacob Pieter
DirectorPrimarily NAMS
0% buying100% selling
Total Trades
8
0 buys · 8 sells
Total Bought
$0
Total Sold
$15.52M
Companies
1
Buy Win Rate
—
insufficient data
Avg Buy Return*
—
Active
Jan 5, 2026 → Sep 30, 2026
Trade Volume by Year
Buy Sell
Top Traded Sectors
Pharmaceutical Preparations8
Most-Traded Stocks
 NAMSNewAmsterdam Pharma Co N.V. | 8 | 0B / 8S | $15.52M |
Trade History
| Sep 30, 2026 | NAMS | SELL | 50,246 | $25.03 | $1.26M |
| Aug 24, 2026 | NAMS | SELL | 125,000 | $26.91 | $3.36M |
| Mar 9, 2026 | NAMS | SELL | 101,409 | $30.29 | $3.07M |
| Mar 6, 2026 | NAMS | SELL | 94,124 | $30.32 | $2.85M |
| Mar 5, 2026 | NAMS | SELL | 104,467 | $30.30 | $3.17M |
| Feb 20, 2026 | NAMS | SELL | 14,692 | $35.00 | $514.22K |
| Feb 20, 2026 | NAMS | SELL | 30,789 | $35.46 | $1.09M |
| Jan 5, 2026 | NAMS | SELL | 6,000 | $33.25 | $199.50K |
*Return = current share price vs the insider’s purchase price (buys only). Not the insider’s realized return. Informational only — not investment advice.