SABBY MANAGEMENT, LLC - BLUEBIRD BIO INC ownership

BLUEBIRD BIO INC's ticker is and the CUSIP is 09609G900. A total of 3 filers reported holding BLUEBIRD BIO INC in Q3 2016. The put-call ratio across all filers is - and the average weighting 0.1%.

Quarter-by-quarter ownership
SABBY MANAGEMENT, LLC ownership history of BLUEBIRD BIO INC
ValueSharesWeighting
Q4 2017$75,693,000
+40.2%
4,250
+8.1%
6.89%
+95.4%
Q3 2017$53,992,000
+106.4%
3,931
+57.9%
3.53%
+106.2%
Q2 2017$26,157,000
+51.5%
2,490
+31.1%
1.71%
+83.8%
Q1 2017$17,262,000
+371.0%
1,899
+218.1%
0.93%
+337.1%
Q4 2016$3,665,000
-60.8%
597
-56.7%
0.21%
-39.1%
Q3 2016$9,354,000
+69.2%
1,380
+60.3%
0.35%
+15.1%
Q4 2015$5,529,000
-27.3%
861
-3.1%
0.30%
-2.9%
Q3 2015$7,605,000
-68.4%
889
-37.8%
0.31%
-64.4%
Q2 2015$24,060,000
-33.5%
1,429
-52.3%
0.88%
-41.7%
Q1 2015$36,183,000
+186.5%
2,996
+117.6%
1.51%
+277.4%
Q4 2014$12,630,000
+254.5%
1,377
+38.7%
0.40%
+191.2%
Q3 2014$3,563,000
+33.9%
993
+43.9%
0.14%
+20.2%
Q2 2014$2,661,0006900.11%
Other shareholders
BLUEBIRD BIO INC shareholders Q3 2016
NameSharesValueWeighting ↓
SABBY MANAGEMENT, LLC 1,380$9,354,0000.35%
SIMPLEX TRADING, LLC 416$360,0000.02%
GROUP ONE TRADING, L.P. 31,700$2,149,0000.02%
View complete list of BLUEBIRD BIO INC shareholders