BLUE

bluebird bio
BLUE

Overview Fund Activity
Delisted

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

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148 hedge funds and large institutions have $78.3M invested in bluebird bio in 2024 Q2 according to their latest regulatory filings, with 23 funds opening new positions, 37 increasing their positions, 47 reducing their positions, and 30 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
148
Holders Change
-8
Holders Change %
-5.13%
% of All Funds
2.15%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
23
Increased
37
Reduced
47
Closed
30
Calls
$758K
Puts
$1.25M
Net Calls
-$495K
Net Calls Change
+$517K

Top Buyers

1
AQR Capital Management
1
AQR Capital Management
Connecticut
$1.22M
2
Deutsche Bank
2
Deutsche Bank
Germany
$1.15M
3
State Street
3
State Street
Massachusetts
$3.74M
4
SXL
4
Summit X LLC
Missouri
$577K
5
Jacobs Levy Equity Management
5
Jacobs Levy Equity Management
New Jersey
$327K

Top Sellers

1
GIM
1
Granahan Investment Management
Massachusetts
$0
2
TCM
2
Tang Capital Management
California
$0
3
PHS
3
PFM Health Sciences
California
$0
4
FLSM
4
Frazier Life Sciences Management
California
$0
5
Two Sigma Investments
5
Two Sigma Investments
New York
$894K
Name Holding Trade Value Shares
Change 		Shares
Change %
TCM
151
Tang Capital Management
California
– -$3.2M -125,000 Closed
PHS
152
PFM Health Sciences
California
– -$2.61M -102,133 Closed
FLSM
153
Frazier Life Sciences Management
California
– -$2.19M -85,495 Closed
Alyeska Investment Group
154
Alyeska Investment Group
Illinois
– -$1.61M -62,797 Closed
Hudson Bay Capital Management
155
Hudson Bay Capital Management
Connecticut
– -$1.51M -59,006 Closed
Wellington Management Group
156
Wellington Management Group
Massachusetts
– -$845K -33,019 Closed
JFG
157
Jefferies Financial Group
New York
– -$807K -31,529 Closed
XT
158
XTX Topco
Cayman Islands
– -$330K -12,895 Closed
HCA
159
Harbor Capital Advisors
Illinois
– -$230K -8,992 Closed
VEA
160
Virtus ETF Advisers
New York
– -$148K -5,773 Closed
Rafferty Asset Management
161
Rafferty Asset Management
New York
– -$139K -5,432 Closed
AIG
162
American International Group
New York
– -$121K -4,719 Closed
HF
163
HRT Financial
New York
– -$81K -3,179 Closed
Mitsubishi UFJ Asset Management
164
Mitsubishi UFJ Asset Management
Japan
– -$78.5K -3,068 Closed
BCM
165
Bayesian Capital Management
New York
– -$51.8K -2,022 Closed
State Board of Administration of Florida Retirement System
166
State Board of Administration of Florida Retirement System
Florida
– -$88.1K -1,385 Closed
JIC
167
Johnson Investment Counsel
Ohio
– -$30.4K -1,187 Closed
ASN
168
Advisory Services Network
Georgia
– -$25.6K -1,000 Closed
Wolverine Trading
169
Wolverine Trading
Illinois
– -$24.9K -973 Closed
A
170
AJOVista
Massachusetts
– -$24.6K -960 Closed
Capstone Investment Advisors
171
Capstone Investment Advisors
New York
– -$20.9K -818 Closed
MLICM
172
Metropolitan Life Insurance Company (MetLife)
New York
– -$13.2K -517 Closed
FIM
173
Fernwood Investment Management
Massachusetts
– -$2.56K -100 Closed
FFA
174
Farther Finance Advisors
California
– -$980 -40 Closed
NS
175
NBC Securities
Alabama
– -$1K -25 Closed
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