Trade Summary

4 days ago, Almstead Neil Gregory, serving as CHIEF TECHNICAL OPS OFFICER at PTC THERAPEUTICS, INC. (PTCT), sold 23,749 shares at $80.90 per share, for a total transaction value of $1,921,378.29. Following this transaction, Almstead Neil Gregory now holds 60,137 shares of PTCT.

This sale represents a 28.31% decrease in Almstead Neil Gregory's stake in the company. This is considered a high-conviction trade given the significant change in ownership.

The trade was executed on Monday, June 22, 2026 and publicly disclosed via SEC Form 4 filing on Wednesday, June 24, 2026 at 5:20 PM ET, 2 days after the trade was made.

PTC THERAPEUTICS, INC. 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.