Louise Frederika Kooij serves as Executive at NewAmsterdam Pharma Co N.V., where they oversee executive responsibilities. Since joining the company, Louise Frederika Kooij has executed 22 insider transactions totaling $12.2M, demonstrating a bearish approach to their equity position. Their most recent transaction on Jan 28, 2026 involved exercising options for 32,612 shares valued at $0.
Louise Frederika Kooij currently holds 73,134 shares of NewAmsterdam Pharma Co N.V. (NAMS), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Louise Frederika Kooij has been a net seller of NAMS stock. They have purchased $0 and sold $12.2M worth of shares.
Louise Frederika Kooij's most recent insider trade was on Jan 28, 2026, when they sold 32,612 shares at $0.00 per share.
Get notified when new Form 4 filings are submitted
| $31.80 |
| Discretionary |
| Jan 28, 2026 | NAMS | $355.5K | Option Exercise | 32,612 | $10.90 | Discretionary |
| Jan 27, 2026 | NAMS | $0 | Option Exercise | 39,816 | $N/A | Discretionary |
| Jan 27, 2026 | NAMS | $1.3M | Sale | 39,816 | $32.62 | Discretionary |
| Jan 27, 2026 | NAMS | $434.0K | Option Exercise | 39,816 | $10.90 | Discretionary |
| Jan 7, 2026 | NAMS | $0 | Award | 53,500 | $N/A | Discretionary |
| Jan 7, 2026 | NAMS | $0 | Award | 12,000 | $N/A | Discretionary |
| Jan 5, 2026 | NAMS | $88.0K | Sale | 2,647 | $33.25 | Discretionary |
| Dec 26, 2025 | NAMS | $1.5M | Sale | 43,872 | $35.30 | Discretionary |
| Dec 26, 2025 | NAMS | $54.5K | Option Exercise | 5,000 | $10.90 | Discretionary |
| Dec 26, 2025 | NAMS | $388.7K | Option Exercise | 38,872 | $10.00 | Discretionary |
| Dec 24, 2025 | NAMS | $260.1K | Option Exercise | 26,011 | $10.00 | Discretionary |
| Dec 24, 2025 | NAMS | $928.1K | Sale | 26,011 | $35.68 | Discretionary |
| Dec 23, 2025 | NAMS | $751.2K | Option Exercise | 75,117 | $10.00 | Discretionary |
| Dec 23, 2025 | NAMS | $2.7M | Sale | 75,117 | $36.21 | Discretionary |
| Sep 9, 2025 | NAMS | $1.3M | Sale | 53,104 | $25.31 | Discretionary |
| Sep 9, 2025 | NAMS | $1.5M | Option Exercise | 150,000 | $10.00 | Discretionary |
| Sep 9, 2025 | NAMS | $2.5M | Sale | 96,896 | $26.11 | Discretionary |
| Sep 3, 2025 | NAMS | $453.5K | Sale | 18,073 | $25.09 | Discretionary |
| Sep 2, 2025 | NAMS | $0 | Option Exercise | 18,073 | $N/A | Discretionary |
| Aug 25, 2025 | NAMS | $205.6K | Sale | 8,269 | $24.86 | Discretionary |