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Kastelein Johannes Jacob Pieter

Chief Scientific Officer · 2 recent trades · Sold $4.6M

Kastelein Johannes Jacob Pieter (Chief Scientific Officer) has 2 recent open-market trades disclosed in SEC Form 4 filings. Total sells: $4.6M. Most recent tickers: NAMS.

DateStock ActionValue
2026-09-30 NAMS NewAmsterdam Pharma Co N.V. Sell $1.3M
2026-08-24 NAMS NewAmsterdam Pharma Co N.V. Sell $3.4M

Open-market insider buys and sells disclosed by Kastelein Johannes Jacob Pieter in SEC Form 4 filings (excludes routine option/RSU administration). All insider trades →

Related ▾
NAMS stockAll insider trades
FAQ ▾

Which stocks has Kastelein Johannes Jacob Pieter traded?

Recent Form 4 activity in: NAMS.

How many insider trades has Kastelein Johannes Jacob Pieter disclosed?

2 recent open-market transactions on file (SEC Form 4).

Is Kastelein Johannes Jacob Pieter buying or selling?

Sells total $4.6M.

Where does this data come from?

SEC Form 4 insider-transaction filings (open-market buys and sells).

Sourced from SEC Form 4 insider filings · Not investment advice ▾
SEC EDGAR Form 4
Data as of 2026-09-30 · Methodology
Open-market insider transactions (Form 4 codes P/S) as reported to the SEC.
Published by WealthFile · Not investment advice.