Form 4: NewAmsterdam Pharma Co Executive Sells Shares
Insider Transaction (Form 4)
Louise Frederika Kooij, Chief Accounting Officer of NewAmsterdam Pharma Co N.V., sold 105,000 shares of common stock on July 20, 2026.
Summary
- Option exercise/conversion: acquired 25,000 Ordinary Shares at $11.90 ($297,500) on July 20, 2026; holds 49,353 after (Direct).
- Option exercise/conversion: acquired 80,000 Ordinary Shares at $11.17 ($893,600) on July 20, 2026; holds 129,353 after (Direct).
- Open-market sale: disposed of 70,200 Ordinary Shares at $29.96 ($2,103,192) on July 20, 2026; holds 59,153 after (Direct).
- Open-market sale: disposed of 31,885 Ordinary Shares at $31.05 ($990,029) on July 20, 2026; holds 27,268 after (Direct).
- Open-market sale: disposed of 2,915 Ordinary Shares at $31.71 ($92,435) on July 20, 2026; holds 24,353 after (Direct).
- Option exercise/conversion: disposed of 25,000 Option (right to buy) on July 20, 2026; holds 10,000 after (Direct).
- Option exercise/conversion: disposed of 80,000 Option (right to buy) on July 20, 2026; holds 70,494 after (Direct).
Sentiment
Score: 4
Explanation: StockSavvy.ai views this as a mildly negative but low-conviction signal: an insider sold $3,185,656 of stock under a pre-arranged Rule 10b5-1 plan, which is typically routine.
Insider Transactions
Louise Frederika Kooij — Officer (Chief Accounting Officer)
Transaction made under a Rule 10b5-1 trading plan.
| Date | Transaction | Security | Shares | Price | Value | Held After |
|---|---|---|---|---|---|---|
| 2026-07-20 | Option exercise/conversion | Ordinary Shares | 25,000 | $12 | $297.5K | 49,353 |
| 2026-07-20 | Option exercise/conversion | Ordinary Shares | 80,000 | $11 | $893.6K | 129,353 |
| 2026-07-20 | Open-market sale | Ordinary Shares | 70,200 | $30 | $2.1M | 59,153 |
| 2026-07-20 | Open-market sale | Ordinary Shares | 31,885 | $31 | $990.0K | 27,268 |
| 2026-07-20 | Open-market sale | Ordinary Shares | 2,915 | $32 | $92.4K | 24,353 |
| 2026-07-20 | Option exercise/conversion | Option (right to buy) | 25,000 | — | — | 10,000 |
| 2026-07-20 | Option exercise/conversion | Option (right to buy) | 80,000 | — | — | 70,494 |
Key Dates
| Date | Description |
|---|---|
| 2026-07-20 | Option exercise/conversion (25,000 shares) |
| 2026-07-20 | Option exercise/conversion (80,000 shares) |
| 2026-07-20 | Open-market sale (70,200 shares) |
| 2026-07-20 | Open-market sale (31,885 shares) |
| 2026-07-20 | Open-market sale (2,915 shares) |
| 2026-07-20 | Option exercise/conversion (25,000 shares) |
| 2026-07-20 | Option exercise/conversion (80,000 shares) |
Keywords
insider transaction, Form 4, NAMS, NewAmsterdam Pharma Co N.V., bearish, Louise Frederika Kooij
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