Trade Summary

3 days ago, SCHMERTZLER MICHAEL, serving as Dir at PTC THERAPEUTICS, INC. (PTCT), sold 25,000 shares at $72.22 per share, for a total transaction value of $1,805,411.39. Following this transaction, SCHMERTZLER MICHAEL now holds 1,361,594 shares of PTCT.

This sale represents a 1.80% decrease in SCHMERTZLER MICHAEL's stake in the company. This is considered a medium-conviction trade.

The trade was executed on Wednesday, August 19, 2026 and publicly disclosed via SEC Form 4 filing on Friday, August 21, 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.