Lewis William sold INSM

June 25, 2026 · Form 4 insider transaction

Lewis William sold 3,723 shares of Insmed Incorporated at $104.28 per share, a transaction worth $388.2K. The trade was recorded as open-market sale under a pre-scheduled Rule 10b5-1 plan and disclosed on an SEC Form 4, filed 1 day after the transaction.

Direction
Disposed (sell-side)
Shares
3,723
Price
$104.28
Total value
$388.2K
RoleDirector
SecurityCommon Stock
Transaction codeS: Open-market sale
Transaction dateJune 25, 2026
Filing dateJune 26, 2026
Shares owned after262,665
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 3,723 shares sold at prices ranging from $103.87 to $104.75 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