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

William Lewis filed Form 144 to notify SEC of plan to sell 10699 units of INSMED INC securities around 2026-04-06, with aggregate market value of $1,746,319.00. The total outstanding units is 215551896.0. The amount planned to be sold represents 0.00% of total outstanding units; Recent transactions in past 3 months include: 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; On 02/09/2026, sold 13396 units for $1979774.00; On 02/03/2026, sold 3009 units for $470412.00; On 01/20/2026, sold 10699 units for $1700420.00; On 01/12/2026, sold 19215 units for $3247325.00; On 01/08/2026, sold 3223 units for $561349.00; On 01/07/2026, sold 2357 units for $412639.00; On 01/06/2026, sold 4096 units for $709959.00;