144 0001870278 XXXXXXXX LIVE 0001104506 INSMED INC 000-30739 700 US Highway 202/206 Bridgewater NJ 08807 9089779900 Michael Smith Officer Common Merrill Lynch 1800 K ST NW Suite 800 Washington DC 20006 4109 477383 216752451 05/13/2026 NASDAQ Common 05/11/2026 Stock Plan Activity Issuer N 4109 05/11/2026 n/a N Michael Smith 700 US Highway 202/206 Bridgewater NJ 08807 Common 03/30/2026 19638 2964929 Michael Smith 700 US Highway 202/206 Bridgewater NJ 08807 Common 02/24/2026 24774 3859153 05/13/2026 Michael Smith