SPHERA FUNDS MANAGEMENT LTD. - BLUEBIRD BIO INC ownership

BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 124 filers reported holding BLUEBIRD BIO INC in Q3 2014. The put-call ratio across all filers is 0.26 and the average weighting 0.2%.

Quarter-by-quarter ownership
SPHERA FUNDS MANAGEMENT LTD. ownership history of BLUEBIRD BIO INC
ValueSharesWeighting
Q4 2019$5,660,000
-40.7%
64,500
-14.0%
0.47%
-64.3%
Q2 2019$9,540,000
-27.6%
75,000
-10.5%
1.30%
+8.5%
Q1 2019$13,184,000
-4.2%
83,796
-39.6%
1.20%
-22.5%
Q4 2018$13,769,000
+20.3%
138,796
+77.0%
1.55%
+18.1%
Q3 2018$11,446,000
+0.6%
78,396
+8.2%
1.31%
-16.2%
Q2 2018$11,376,000
+556.8%
72,483
+81.2%
1.57%
+248.4%
Q2 2016$1,732,000
+35.8%
40,000
+33.3%
0.45%
+63.0%
Q1 2016$1,275,000
-33.5%
30,000
-43.8%
0.28%
+16.5%
Q3 2014$1,916,000
+46.7%
53,405
-7.0%
0.24%
-20.5%
Q1 2014$1,306,000
-32.6%
57,435
-37.9%
0.30%
-44.8%
Q4 2013$1,939,00092,4350.54%
Other shareholders
BLUEBIRD BIO INC shareholders Q3 2014
NameSharesValueWeighting ↓
Sessa Capital IM, L.P. 1,834,965$35,066,0001.72%
Birchview Capital, LP 84,000$1,605,0001.09%
ARMISTICE CAPITAL, LLC 2,472,000$47,240,0000.80%
EcoR1 Capital, LLC 802,507$15,336,0000.53%
Parametrica Management Ltd 36,919$706,0000.53%
Bain Capital Life Sciences Investors, LLC 538,179$7,239,0000.45%
APPLETON GROUP, LLC 19,495$373,0000.32%
MANGROVE PARTNERS IM, LLC 175,587$3,355,0000.30%
Quinn Opportunity Partners LLC 230,100$4,397,0000.28%
PDT Partners, LLC 171,700$3,281,0000.24%
View complete list of BLUEBIRD BIO INC shareholders