Renaissance Technologies - BLUEBIRD BIO INC ownership

BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 272 filers reported holding BLUEBIRD BIO INC in Q4 2020. The put-call ratio across all filers is 1.17 and the average weighting 0.1%.

Quarter-by-quarter ownership
Renaissance Technologies ownership history of BLUEBIRD BIO INC
ValueSharesWeighting
Q3 2023$1,444
-20.2%
474,900
-13.7%
0.00%
-33.3%
Q2 2023$1,810
-100.0%
550,200
-27.3%
0.00%
-57.1%
Q3 2022$4,793,000
-58.8%
757,110
-73.1%
0.01%
-50.0%
Q2 2022$11,633,000
+155.2%
2,810,000
+198.9%
0.01%
+180.0%
Q1 2022$4,559,000
-82.5%
940,000
+55.7%
0.01%
-82.1%
Q4 2020$26,122,000
+125.8%
603,700
+181.6%
0.03%
+133.3%
Q3 2020$11,567,000
-32.1%
214,400
+114.8%
0.01%
+33.3%
Q2 2018$17,041,0000.0%99,8000.0%0.01%
-52.6%
Q1 2018$17,041,000
+57.5%
99,800
+26.6%
0.02%
+46.2%
Q3 2017$10,823,000
+203.1%
78,800
-4.5%
0.01%
+85.7%
Q2 2016$3,571,000
+117.6%
82,500
+113.7%
0.01%
+133.3%
Q1 2016$1,641,000
-78.6%
38,600
-15.4%
0.00%
-82.4%
Q2 2015$7,678,000
+1.7%
45,600
-27.0%
0.02%
+6.2%
Q1 2015$7,548,000
-37.1%
62,500
-52.3%
0.02%
-44.8%
Q4 2014$12,006,000
+509.4%
130,900
+138.4%
0.03%
+480.0%
Q3 2014$1,970,00054,9000.01%
Other shareholders
BLUEBIRD BIO INC shareholders Q4 2020
NameSharesValueWeighting ↓
TANG CAPITAL MANAGEMENT LLC 4,282,827$13,019,7941.84%
Birchview Capital, LP 455,200$1,383,8081.18%
PFM Health Sciences, LP 6,040,934$18,364,4390.86%
Lion Point Capital, LP 531,256$1,615,0180.72%
Endurant Capital Management LP 251,785$765,4260.69%
Bleichroeder LP 900,000$2,736,0000.67%
Connacht Asset Management LP 31,634$96,1670.57%
Granahan Investment Management 5,137,778$15,618,8450.56%
Frazier Life Sciences Management, L.P. 1,709,907$5,198,1170.34%
Contrarius Investment Management Ltd 1,308,002$3,9760.22%
View complete list of BLUEBIRD BIO INC shareholders