Trade Summary

2 days ago, Kooij Louise Frederika, serving as Chief Accounting Officer at NewAmsterdam Pharma Co N.V. (NAMS), sold 65,000 shares at $35.69 per share, for a total transaction value of $2,319,850.00. Following this transaction, Kooij Louise Frederika now holds 24,353 shares of NAMS.

This sale represents a 72.75% decrease in Kooij Louise Frederika's stake in the company. This is considered a high-conviction trade given the significant change in ownership.

The trade was executed on Tuesday, May 26, 2026 and publicly disclosed via SEC Form 4 filing on Wednesday, May 27, 2026 at 4:30 PM ET, 1 day after the trade was made.

NewAmsterdam Pharma Co N.V. operates in the HEALTHCARE sector, specifically within the BIOTECHNOLOGY industry. Insider selling activity in this sector can provide valuable signals about industry trends and company-specific developments.