Granahan Investment Management - BLUEBIRD BIO INC ownership

BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 164 filers reported holding BLUEBIRD BIO INC in Q3 2022. The put-call ratio across all filers is 0.70 and the average weighting 0.1%.

Quarter-by-quarter ownership
Granahan Investment Management ownership history of BLUEBIRD BIO INC
ValueSharesWeighting
Q3 2023$15,618,845
-2.2%
5,137,778
+5.8%
0.56%
+13.0%
Q2 2023$15,977,299
+247.6%
4,856,322
+236.0%
0.49%
+251.4%
Q1 2023$4,595,917
-6.4%
1,445,257
+103.7%
0.14%
-6.7%
Q4 2022$4,909,941
+31.7%
709,529
+20.4%
0.15%
+23.0%
Q3 2022$3,729,000
+43.4%
589,083
+880.4%
0.12%
+110.3%
Q4 2020$2,600,000
-49.2%
60,085
-36.6%
0.06%
-66.7%
Q3 2020$5,116,000
-20.9%
94,821
-10.5%
0.17%
-25.6%
Q2 2020$6,468,000105,9660.23%
Other shareholders
BLUEBIRD BIO INC shareholders Q3 2022
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