DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) - BLUEBIRD BIO INC ownership

BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 314 filers reported holding BLUEBIRD BIO INC in Q2 2018. The put-call ratio across all filers is 0.60 and the average weighting 0.2%.

Quarter-by-quarter ownership
DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) ownership history of BLUEBIRD BIO INC
ValueSharesWeighting
Q1 2023$6,916,500
-55.0%
2,175,000
+352.8%
0.15%
-43.6%
Q2 2021$15,360,000
+6.1%
480,3000.0%0.27%
-10.2%
Q1 2021$14,481,000
+61.4%
480,300
+681.8%
0.30%
-5.3%
Q3 2018$8,970,000
-49.4%
61,435
-45.6%
0.32%
-48.5%
Q2 2018$17,735,000
+153.3%
113,000
+175.6%
0.62%
+156.4%
Q1 2018$7,001,000
-50.9%
41,000
-48.8%
0.24%
-56.7%
Q4 2017$14,248,000
+46.4%
80,000
-25.3%
0.56%
+49.6%
Q1 2017$9,732,000
-47.8%
107,064
-64.6%
0.38%
-51.1%
Q4 2016$18,635,000
+22.7%
302,027
+34.8%
0.77%
+8.6%
Q3 2016$15,183,000
+3.7%
224,000
-33.7%
0.71%
+22.8%
Q2 2016$14,636,000
-64.6%
338,085
-30.0%
0.58%
-64.0%
Q3 2015$41,321,000
-24.9%
483,000
+47.8%
1.60%
-12.8%
Q2 2015$55,020,000
-27.8%
326,783
-48.2%
1.83%
-25.8%
Q1 2015$76,243,000
-2.3%
631,309
-25.8%
2.47%
-11.9%
Q4 2014$78,047,000
+72.8%
850,932
-32.4%
2.80%
+70.4%
Q3 2014$45,162,000
+8.9%
1,258,687
+17.1%
1.65%
-1.3%
Q2 2014$41,473,000
+340.0%
1,075,268
+159.4%
1.67%
+333.2%
Q1 2014$9,425,000
+6.1%
414,474
-2.1%
0.38%
-16.3%
Q4 2013$8,879,000
-22.2%
423,2240.0%0.46%
-13.4%
Q3 2013$11,410,000423,2240.53%
Other shareholders
BLUEBIRD BIO INC shareholders Q2 2018
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