BLUE

bluebird bio
BLUE

Overview Fund Activity
Delisted

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

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151 hedge funds and large institutions have $228M invested in bluebird bio in 2022 Q2 according to their latest regulatory filings, with 26 funds opening new positions, 54 increasing their positions, 41 reducing their positions, and 45 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
151
Holders Change
-23
Holders Change %
-13.22%
% of All Funds
2.55%
Holding in Top 10
1
Holding in Top 10 Change
+1
Holding in Top 10 Change %
%
% of All Funds
0.02%
New
26
Increased
54
Reduced
41
Closed
45
Calls
$1.84M
Puts
$4.53M
Net Calls
-$2.69M
Net Calls Change
-$1.56M

Top Buyers

1
TCM
1
Tang Capital Management
California
$24.5M
2
Renaissance Technologies
2
Renaissance Technologies
New York
$11.6M
3
Millennium Management
3
Millennium Management
New York
$10.3M
4
Citadel Advisors
4
Citadel Advisors
Florida
$4.13M
5
Point72 Asset Management
5
Point72 Asset Management
Connecticut
$3.38M

Top Sellers

1
State Street
1
State Street
Massachusetts
$7.56M
2
Vanguard Group
2
Vanguard Group
Pennsylvania
$14.5M
3
Morgan Stanley
3
Morgan Stanley
New York
$2.69M
4
UBS Group
4
UBS Group
Switzerland
$12K
5
Rafferty Asset Management
5
Rafferty Asset Management
New York
$1.09M
Name Holding Trade Value Shares
Change 		Shares
Change %
State of Wisconsin Investment Board
151
State of Wisconsin Investment Board
Wisconsin
– -$423K -4,365 Closed
Assenagon Asset Management
152
Assenagon Asset Management
Luxembourg
– -$419K -4,320 Closed
Walleye Trading
153
Walleye Trading
New York
– -$393K -4,047 Closed
UBS AM
154
UBS AM
Illinois
– -$317K -3,269 Closed
EGM
155
Engineers Gate Manager
New York
– -$263K -2,707 Closed
EFM
156
E Fund Management
China
– -$238K -2,456 Closed
VEA
157
Virtus ETF Advisers
New York
– -$197K -2,030 Closed
JF
158
Jump Financial
Illinois
– -$193K -1,982 Closed
Wolverine Trading
159
Wolverine Trading
Illinois
– -$171K -1,730 Closed
Man Group
160
Man Group
United Kingdom
– -$150K -1,545 Closed
Mitsubishi UFJ Asset Management
161
Mitsubishi UFJ Asset Management
Japan
– -$136K -1,401 Closed
GCP
162
GSA Capital Partners
United Kingdom
– -$96K -988 Closed
ASRS
163
Arizona State Retirement System
Arizona
– -$92K -948 Closed
SAM
164
Shell Asset Management
Netherlands
– -$83K -859 Closed
SEI Investments
165
SEI Investments
Pennsylvania
– -$28K -788 Closed
GAA
166
Green Alpha Advisors
Colorado
– -$71K -733 Closed
Teacher Retirement System of Texas
167
Teacher Retirement System of Texas
Texas
– -$69K -711 Closed
Janus Henderson Group
168
Janus Henderson Group
United Kingdom
– -$66K -682 Closed
VIA
169
Vident Investment Advisory
Georgia
– -$64K -661 Closed
SMH
170
Sanders Morris Harris
Texas
– -$62K -640 Closed
RJA
171
Raymond James & Associates
Florida
– -$50K -513 Closed
Zurich Cantonal Bank
172
Zurich Cantonal Bank
Switzerland
– -$36K -373 Closed
Canada Life
173
Canada Life
Manitoba, Canada
– -$20K -204 Closed
SOW
174
State of Wyoming
Wyoming
– -$14K -139 Closed
CI Investments Inc
175
CI Investments Inc
Ontario, Canada
– -$9K -88 Closed
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