SECTOR GAMMA AS - BLUEBIRD BIO INC ownership

BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 282 filers reported holding BLUEBIRD BIO INC in Q4 2019. The put-call ratio across all filers is 0.80 and the average weighting 0.1%.

Quarter-by-quarter ownership
SECTOR GAMMA AS ownership history of BLUEBIRD BIO INC
ValueSharesWeighting
Q1 2020$2,229,000
-59.3%
48,490
-22.3%
0.48%
-45.8%
Q4 2019$5,476,000
+105.2%
62,400
+267.1%
0.88%
+98.0%
Q2 2018$2,668,00017,0000.44%
Other shareholders
BLUEBIRD BIO INC shareholders Q4 2019
NameSharesValueWeighting ↓
Monashee Investment Management LLC 125,000$13,131,0005.55%
Cormorant Asset Management, LP 275,000$28,889,0004.79%
Eventide Asset Management 569,700$59,847,0003.73%
Crosspoint Capital Strategies, LLC 28,937$3,040,0002.66%
Casdin Capital, LLC 65,000$6,828,0002.53%
ARK Investment Management 119,683$12,573,0002.45%
RTW INVESTMENTS, LP 104,383$10,965,0002.31%
Taylor Wealth Management Partners 38,368$4,031,0001.82%
First Light Asset Management, LLC 33,780$3,549,0001.19%
Atika Capital Management LLC 25,000$2,627,0000.92%
View complete list of BLUEBIRD BIO INC shareholders