Trade Summary

3 days ago, Swayze Eric, serving as EVP Research at IONIS PHARMACEUTICALS INC (IONS), sold 10,602 shares at $79.18 per share, for a total transaction value of $839,491.80. Following this transaction, Swayze Eric now holds 21,759 shares of IONS.

This sale represents a 32.76% decrease in Swayze Eric's stake in the company. This is considered a high-conviction trade given the significant change in ownership.

The trade was executed on Thursday, June 25, 2026 and publicly disclosed via SEC Form 4 filing on Friday, June 26, 2026 at 7:09 PM ET, 1 day 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.