Polar Capital LLP - BLUEBIRD BIO INC ownership

BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 219 filers reported holding BLUEBIRD BIO INC in Q1 2017. The put-call ratio across all filers is 0.60 and the average weighting 0.1%.

Quarter-by-quarter ownership
Polar Capital LLP ownership history of BLUEBIRD BIO INC
ValueSharesWeighting
Q4 2017$3,117,000
+71.5%
17,500
-12.5%
0.03%
+18.5%
Q1 2017$1,818,000
-82.4%
20,000
-86.9%
0.03%
-84.9%
Q3 2016$10,349,000152,6780.18%
Other shareholders
BLUEBIRD BIO INC shareholders Q1 2017
NameSharesValueWeighting ↓
TANG CAPITAL MANAGEMENT LLC 5,910,687$24,470,0003.71%
Monaco Asset Management SAM 306,142$1,267,0000.55%
Parametrica Management Ltd 90,105$374,0000.41%
Kamunting Street Capital Management, L.P. 55,200$229,0000.31%
Birchview Capital, LP 98,000$406,0000.30%
Kamunting Street Capital Management, L.P. 35,000$145,0000.20%
PDT Partners, LLC 519,477$2,151,0000.19%
Graham Capital Management, L.P. 781,912$3,237,0000.13%
CAXTON ASSOCIATES LP 220,154$911,0000.09%
Baker Brothers Advisors 2,499,715$10,349,0000.06%
View complete list of BLUEBIRD BIO INC shareholders