Trade Summary

5 days ago, O'NEIL PATRICK R., serving as EVP CLO & General Counsel at IONIS PHARMACEUTICALS INC (IONS), sold 3,069 shares at $80.00 per share, for a total transaction value of $245,520.00. Following this transaction, O'NEIL PATRICK R. now holds 61,470 shares of IONS.

This sale represents a 4.76% decrease in O'NEIL PATRICK R.'s stake in the company. This is considered a medium-conviction trade.

The trade was executed on Friday, June 26, 2026 and publicly disclosed via SEC Form 4 filing on Tuesday, June 30, 2026 at 5:48 PM ET, 4 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.