William Lewis plan to sell securities of INSMED INC under Form 144

William Lewis filed Form 144 to notify SEC of plan to sell 13283 units of INSMED INC securities around 2026-05-13, with aggregate market value of $1,543,218.00. The total outstanding units is 216752451.0. The amount planned to be sold represents 0.01% of total outstanding units; Recent transactions in past 3 months include: On 05/04/2026, sold 10699 units for $1469434.00; On 04/16/2026, sold 10699 units for $1540292.00; On 04/06/2026, sold 10699 units for $1746319.00; On 03/19/2026, sold 10699 units for $1535514.00; On 03/05/2026, sold 10699 units for $1562311.00; On 02/19/2026, sold 10699 units for $1615250.00;