BLUE

bluebird bio

Delisted

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

307 hedge funds and large institutions have $8.41B invested in bluebird bio in 2018 Q2 according to their latest regulatory filings, with 52 funds opening new positions, 121 increasing their positions, 88 reducing their positions, and 47 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
307
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
4
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$237M
Puts
$142M
Net Calls
Net Calls Change

Top Buyers

1 +$74.1M
2 +$70.1M
3 +$61.7M
4
Susquehanna International Group
Susquehanna International Group
Pennsylvania
+$46.1M
5
Citigroup
Citigroup
New York
+$39.3M

Top Sellers

1 -$178M
2 -$55.1M
3 -$49.3M
4
State Street
State Street
Massachusetts
-$45.2M
5
Two Sigma Advisers
Two Sigma Advisers
New York
-$42.9M
Name Holding Trade Value Shares
Change
Change in
Stake
176
$908K
177
$891K
178
$868K
179
$863K
180
$850K
181
$844K
182
$800K
183
$785K
184
$785K
185
$765K
186
$743K
187
$737K
188
$706K
189
$691K
190
$688K
191
$686K
192
$647K
193
$634K
194
$628K
195
$616K
196
$608K
197
$605K
198
$575K
199
$566K
200
$566K