SPHERA FUNDS MANAGEMENT LTD. - INSMED INC ownership

INSMED INC's ticker is and the CUSIP is 457669907. A total of 6 filers reported holding INSMED INC in Q1 2014. The put-call ratio across all filers is - and the average weighting 0.5%.

Quarter-by-quarter ownership
SPHERA FUNDS MANAGEMENT LTD. ownership history of INSMED INC
ValueSharesWeighting
Q2 2014$293,000
-17.5%
1,0000.0%0.07%
-11.1%
Q1 2014$355,0001,0000.08%
Other shareholders
INSMED INC shareholders Q1 2014
NameSharesValueWeighting ↓
SILVERARC CAPITAL MANAGEMENT, LLC 250,000$16,750,0003.95%
GROUP ONE TRADING, L.P. 217,500$14,572,5000.06%
SIMPLEX TRADING, LLC 131,000$8,7770.01%
JANE STREET GROUP, LLC 197,900$13,259,3000.00%
JPMORGAN CHASE & CO 182,600$12,234,2000.00%
CONCOURSE FINANCIAL GROUP SECURITIES, INC. 0$00.00%
View complete list of INSMED INC shareholders