Lewis William sold INSM

May 18, 2026 · Form 4 insider transaction

Lewis William sold 11,836 shares of Insmed Incorporated at $106.39 per share, a transaction worth $1.26M. The trade was recorded as open-market sale under a pre-scheduled Rule 10b5-1 plan and disclosed on an SEC Form 4, filed 2 days after the transaction.

Direction
Disposed (sell-side)
Shares
11,836
Price
$106.39
Total value
$1.26M
RoleDirector
SecurityCommon Stock
Transaction codeS: Open-market sale
Transaction dateMay 18, 2026
Filing dateMay 20, 2026
Shares owned after281,012
OwnershipDirect
10b5-1 planYes
AmendedNo

Footnotes

This transaction was effected pursuant to a 10b5-1 trading plan adopted by the Reporting Person on September 4, 2025 in accordance with Rule 10b5-1 of the Securities Exchange Act of 1934, as amended.; This is the weighted average sales price representing 11,836 shares sold at prices ranging from $105.73 to $106.72 per share. The Reporting Person undertakes to provide to the SEC staff, the issuer, or a security holder of the issuer the number of shares sold at each price within the price range upon request.

View the original Form 4 on SEC EDGAR
Lewis William sold INSM: May 18, 2026 | Insider Trading Screener