Trade Summary

3 days ago, Diaz Allene M., serving as Dir at IONIS PHARMACEUTICALS INC (IONS), sold 10,111 shares at $85.42 per share, for a total transaction value of $863,637.13. Following this transaction, Diaz Allene M. now holds 3,811 shares of IONS.

This sale represents a 72.63% decrease in Diaz Allene M.'s stake in the company. This is considered a high-conviction trade given the significant change in ownership.

The trade was executed on Tuesday, July 7, 2026 and publicly disclosed via SEC Form 4 filing on Thursday, July 9, 2026 at 6:07 PM ET, 2 days after the trade was made.

IONIS PHARMACEUTICALS 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.