Form4.ai tracks every SEC insider trade in real time. See every NAMS insider filing with a free account — no card.
See every NAMS insider filing — free account, no card.
Free accountNewAmsterdam Pharma Co N.V. (NAMS) has 4 SEC Form 4 insider filings on record in the last 90 days. That includes 1 insider purchase totalling $226K, and 1 sales totalling $41K. Most recent filing: Oct. 2, 2026.
Open-market value, last 90 days
Form 4 filings by type, last 90 days
| Date | Insider | Trade | Value | Price since buy |
|---|---|---|---|---|
| Oct 2, 2026 SEC filing | Kastelein Johannes Jacob Pieter Chief Scientific Officer | Cashless exercise | $1,257,657 | — |
| Sep 15, 2026 SEC filing | Davidson Michael H. Chief Executive Officer | Bought | $226,500 | -10.9% 30D |
| Sep 9, 2026 SEC filing | Smither John W Director | Sold | $40,512 | — |
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Form 4 is the filing company officers, directors and 10% shareholders must submit to the SEC within two business days of trading their own company's stock. Open-market purchases generally carry more signal than sales, which are often scheduled in advance. More on how this works.