ELLINGTON MANAGEMENT GROUP LLC - BLUEBIRD BIO INC ownership

BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 240 filers reported holding BLUEBIRD BIO INC in Q2 2015. The put-call ratio across all filers is 1.07 and the average weighting 0.2%.

Quarter-by-quarter ownership
ELLINGTON MANAGEMENT GROUP LLC ownership history of BLUEBIRD BIO INC
ValueSharesWeighting
Q4 2019$281,000
+27.7%
3,200
+33.3%
0.06%
+50.0%
Q3 2019$220,000
-3.9%
2,400
+33.3%
0.04%
+2.6%
Q2 2019$229,000
-59.8%
1,800
-78.6%
0.04%
-75.2%
Q3 2016$569,000
+60.7%
8,400
+300.0%
0.16%
+80.5%
Q2 2015$354,0002,1000.09%
Other shareholders
BLUEBIRD BIO INC shareholders Q2 2015
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