Kooij Louise Frederika (CIK 2004379) reported 40 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-07-22). Recent activity: Buy NAMS (25,000 shares), Buy NAMS (80,000 shares), Sell NAMS (70,200 shares), Sell NAMS (31,885 shares), Sell NAMS (2,915 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-07-22 | NewAmsterdam Pharma Co N.V. (NAMS) | Chief Accounting Officer | Buy | 25,000 | $297,500 |
| 2026-07-22 | NewAmsterdam Pharma Co N.V. (NAMS) | Chief Accounting Officer | Buy | 80,000 | $893,600 |
| 2026-07-22 | NewAmsterdam Pharma Co N.V. (NAMS) | Chief Accounting Officer | Sell | 70,200 | $2.1M |
| 2026-07-22 | NewAmsterdam Pharma Co N.V. (NAMS) | Chief Accounting Officer | Sell | 31,885 | $990,029 |
| 2026-07-22 | NewAmsterdam Pharma Co N.V. (NAMS) | Chief Accounting Officer | Sell | 2,915 | $92,435 |
| 2026-06-24 | NewAmsterdam Pharma Co N.V. (NAMS) | Chief Accounting Officer | Buy | 25,000 | $272,500 |
| 2026-06-24 | NewAmsterdam Pharma Co N.V. (NAMS) | Chief Accounting Officer | Buy | 15,000 | $178,500 |
| 2026-06-24 | NewAmsterdam Pharma Co N.V. (NAMS) | Chief Accounting Officer | Sell | 39,700 | $1.2M |
| 2026-06-24 | NewAmsterdam Pharma Co N.V. (NAMS) | Chief Accounting Officer | Sell | 300 | $9,219 |
| 2026-05-27 | NewAmsterdam Pharma Co N.V. (NAMS) | Chief Accounting Officer | Buy | 60,000 | $600,000 |
| 2026-05-27 | NewAmsterdam Pharma Co N.V. (NAMS) | Chief Accounting Officer | Buy | 5,000 | $54,500 |
| 2026-05-27 | NewAmsterdam Pharma Co N.V. (NAMS) | Chief Accounting Officer | Sell | 65,000 | $2.3M |
| 2026-01-29 | NewAmsterdam Pharma Co N.V. (NAMS) | Chief Accounting Officer | Buy | 39,816 | $433,994 |
| 2026-01-29 | NewAmsterdam Pharma Co N.V. (NAMS) | Chief Accounting Officer | Sell | 39,816 | $1.3M |
| 2026-01-29 | NewAmsterdam Pharma Co N.V. (NAMS) | Chief Accounting Officer | Buy | 32,612 | $355,471 |
| 2026-01-29 | NewAmsterdam Pharma Co N.V. (NAMS) | Chief Accounting Officer | Sell | 32,612 | $1.0M |
| 2026-01-27 | NewAmsterdam Pharma Co N.V. (NAMS) | Chief Accounting Officer | Buy | 38,172 | $416,075 |
| 2026-01-27 | NewAmsterdam Pharma Co N.V. (NAMS) | Chief Accounting Officer | Sell | 25,405 | $849,543 |
| 2026-01-27 | NewAmsterdam Pharma Co N.V. (NAMS) | Chief Accounting Officer | Sell | 12,767 | $438,802 |
| 2026-01-27 | NewAmsterdam Pharma Co N.V. (NAMS) | Chief Accounting Officer | Buy | 34,400 | $374,960 |
| 2026-01-27 | NewAmsterdam Pharma Co N.V. (NAMS) | Chief Accounting Officer | Sell | 34,091 | $1.1M |
| 2026-01-27 | NewAmsterdam Pharma Co N.V. (NAMS) | Chief Accounting Officer | Sell | 309 | $10,336 |
| 2026-01-07 | NewAmsterdam Pharma Co N.V. (NAMS) | Chief Accounting Officer | Sell | 2,647 | $88,013 |
| 2026-01-07 | NewAmsterdam Pharma Co N.V. (NAMS) | Chief Accounting Officer | Buy | 12,000 | $0 |
| 2025-12-29 | NewAmsterdam Pharma Co N.V. (NAMS) | Chief Accounting Officer | Buy | 75,117 | $751,170 |
Source: SEC Form 4 filings · as of 2026-07-22