Kastelein Johannes Jacob Pieter — Chief Scientific Officer
Insider trading activity for Kastelein Johannes Jacob Pieter sourced from SEC EDGAR Form 4 filings.
Overview
- Title: Chief Scientific Officer
- Company: NewAmsterdam Pharma Co N.V.
- Total insider trades: 3
- Total buy volume: $0
- Total sell volume: $1.3M
- Last trade: Oct 2, 2026
Recent Trades
| Date | Insider | Ticker / Company | Type | Shares | Value |
|---|---|---|---|---|---|
| Sep 30, 2026 | Kastelein Johannes Jacob Pieter | NAMS NewAmsterdam Pharma Co N.V. | OTHER | 50,246 | $0 |
| Sep 30, 2026 | Kastelein Johannes Jacob Pieter | NAMS NewAmsterdam Pharma Co N.V. | SELL | 50,246 | $1.3M |
| Sep 30, 2026 | Kastelein Johannes Jacob Pieter | NAMS NewAmsterdam Pharma Co N.V. | OTHER | 50,246 | N/A |