Trade Summary

5 days ago, Hayden Michael R, serving as Dir at IONIS PHARMACEUTICALS INC (IONS), purchased 20,000 shares at $52.94 per share, for a total transaction value of $1,058,700.00. Following this transaction, Hayden Michael R now holds 24,000 shares of IONS.

This purchase represents a 500.00% increase in Hayden Michael R's stake in the company. This is considered a high-conviction trade given the significant change in ownership.

The trade was executed on Thursday, July 30, 2026 and publicly disclosed via SEC Form 4 filing on Friday, July 31, 2026 at 4:42 PM ET, 1 day after the trade was made.

IONIS PHARMACEUTICALS INC operates in the HEALTHCARE sector, specifically within the BIOTECHNOLOGY industry. Insider buying activity in this sector can provide valuable signals about industry trends and company-specific developments.