Lewis William sold INSM

April 16, 2026 · Form 4 insider transaction

Lewis William sold 5,373 shares of Insmed Incorporated at $143.81 per share, a transaction worth $772.7K. 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
5,373
Price
$143.81
Total value
$772.7K
RoleDirector
SecurityCommon Stock
Transaction codeS: Open-market sale
Transaction dateApril 16, 2026
Filing dateApril 17, 2026
Shares owned after304,265
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 5,373 shares sold at prices ranging from $143.39 to $144.32 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: April 16, 2026 | Insider Trading Screener