Lewis William sold INSM

February 19, 2026 · Form 4 insider transaction

Lewis William sold 1,891 shares of Insmed Incorporated at $150.10 per share, a transaction worth $283.8K. The trade was recorded as open-market sale under a pre-scheduled Rule 10b5-1 plan and disclosed on an SEC Form 4, filed 4 days after the transaction.

Direction
Disposed (sell-side)
Shares
1,891
Price
$150.10
Total value
$283.8K
RoleDirector
SecurityCommon Stock
Transaction codeS: Open-market sale
Transaction dateFebruary 19, 2026
Filing dateFebruary 23, 2026
Shares owned after308,005
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 1,891 shares sold at prices ranging from $149.53 to $150.50 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