Trade Summary

3 days ago, Lewis William, serving as Chair and CEO at INSMED Inc (INSM), sold 21,398 shares at $103.32 per share, for a total transaction value of $2,210,762.94. Following this transaction, Lewis William now holds 258,917 shares of INSM.

This sale represents a 7.63% decrease in Lewis William'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 4:03 PM ET, 1 day after the trade was made.

INSMED 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.