Trade Summary

5 days ago, Williams Lewis T, serving as Dir at Protagonist Therapeutics, Inc (PTGX), sold 18,000 shares at $82.42 per share, for a total transaction value of $1,483,560.00. Following this transaction, Williams Lewis T now holds 7,825 shares of PTGX.

This sale represents a 70.00% decrease in Williams Lewis T's stake in the company. This is considered a high-conviction trade given the significant change in ownership.

The trade was executed on Tuesday, February 17, 2026 and publicly disclosed via SEC Form 4 filing on Wednesday, February 18, 2026, 1 day after the trade was made.

Protagonist 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.