Johannes Jacob Piete Kastelein's Net Worth
Johannes Jacob Piete Kastelein's net worth is estimated to be at least $5,309,734.00 as of 09/17/2025. CoreStreet's estimation of Johannes Jacob Piete Kastelein's net worth is based on their sale of stock and current holding of stock.
Johannes Jacob Piete Kastelein is Insider at NewAmsterdam Pharma Company N.V.. They have executed at least 2 trades of stock as per SEC Form 4 filings. Their most recent trade was for 50,000 units of NAMS stock on 08/21/2025. Their biggest sale was on 03/26/2024 when they sold 190,476 units of NewAmsterdam Pharma Company N.V. stock for $4,095,234.00. They typically trade 1 times per year.
Total value of insider buys:
- $0.00
Total value of insider sells:
- $5,309,734.00
Most recent insider trade:
- Aug. 21, 2025
Johannes Jacob Piete Kastelein's Insider Trading History
| NewAmsterdam Pharma Company N.V. | Title | Amount | Price | Type | Total Value |
|---|---|---|---|---|---|
Aug. 21, 2025 | Insider | 50,000 | $24.29 | Sell | $1,214,500.00 |
March 26, 2024 | Insider | 190,476 | $21.50 | Sell | $4,095,234.00 |