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
151
$222K
152
$219K
153
$211K
154
$209K
155
$201K
156
$200K
157
$172K
158
$154K
159
$145K
160
$144K
161
$141K
162
$134K
163
$98K
164
$96K
165
$74K
166
$67K
167
$64.2K
168
$64K
169
$51K
170
$49K
171
$45K
172
$44K
173
$39K
174
$37K
175
$27K