BLUE

bluebird bio

Delisted

BLUE was delisted on the 30th of May, 2025.

193 hedge funds and large institutions have $2.53B invested in bluebird bio in 2015 Q4 according to their latest regulatory filings, with 44 funds opening new positions, 86 increasing their positions, 49 reducing their positions, and 41 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
193
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
3
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$39.2M
Puts
$52M
Net Calls
Net Calls Change

Top Buyers

1 +$48.9M
2 +$42.9M
3 +$32.3M
4
State Street
State Street
Massachusetts
+$21.7M
5
Ameriprise
Ameriprise
Minnesota
+$17.9M
Name Holding Trade Value Shares
Change
Change in
Stake
126
$514K
127
$498K
128
$497K
129
$446K
130
$411K
131
$405K
132
$405K
133
$385K
134
$382K
135
$379K
136
$366K
137
$353K
138
$340K
139
$321K
140
$321K
141
$305K
142
$298K
143
$281K
144
$271K
145
$265K
146
$257K
147
$255K
148
$250K
149
$240K
150
$224K