BLUE

bluebird bio
BLUE

Overview Fund Activity
Delisted

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

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80 hedge funds and large institutions have $23.7M invested in bluebird bio in 2024 Q4 according to their latest regulatory filings, with 16 funds opening new positions, 20 increasing their positions, 31 reducing their positions, and 72 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
80
Holders Change
-58
Holders Change %
-42.03%
% of All Funds
1.07%
Holding in Top 10
1
Holding in Top 10 Change
+1
Holding in Top 10 Change %
%
% of All Funds
0.01%
New
16
Increased
20
Reduced
31
Closed
72
Calls
$40.7M
Puts
$4.89M
Net Calls
+$35.8M
Net Calls Change
+$36M

Top Buyers

1
UBS Group
1
UBS Group
Switzerland
$887K
2
National Bank of Canada
2
National Bank of Canada
Quebec, Canada
$681K
3
PHS
3
PFM Health Sciences
California
$632K
4
Jane Street
4
Jane Street
New York
$336K
5
Goldman Sachs
5
Goldman Sachs
New York
$517K

Top Sellers

1
ECM
1
ExodusPoint Capital Management
New York
$0
2
Fidelity Investments
2
Fidelity Investments
Massachusetts
$397K
3
Renaissance Technologies
3
Renaissance Technologies
New York
$0
4
BlackRock
4
BlackRock
New York
$5.91M
5
Millennium Management
5
Millennium Management
New York
$164K
Name Holding Trade Value Shares
Change 		Shares
Change %
T. Rowe Price Associates
101
T. Rowe Price Associates
Maryland
– -$33K -3,171 Closed
PFS
102
Prospera Financial Services
Texas
– -$30.7K -2,955 Closed
Mariner
103
Mariner
Kansas
– -$28.8K -2,772 Closed
EGM
104
Engineers Gate Manager
New York
– -$27.9K -2,689 Closed
APP
105
Avantax Planning Partners
Iowa
– -$26K -2,500 Closed
ProShare Advisors
106
ProShare Advisors
Maryland
– -$24.7K -2,373 Closed
Tudor Investment Corp
107
Tudor Investment Corp
Connecticut
– -$22.8K -2,190 Closed
SIG
108
Sargent Investment Group
Maryland
– -$20K -1,926 Closed
CUAMC
109
China Universal Asset Management Company
China
– -$19K -1,831 Closed
HKAM
110
Horizon Kinetics Asset Management
New York
– -$18.1K -1,747 Closed
Prudential Financial
111
Prudential Financial
New Jersey
– -$17.8K -1,710 Closed
Baird Financial Group
112
Baird Financial Group
Wisconsin
– -$16.8K -1,613 Closed
EBT
113
Enterprise Bank & Trust
Massachusetts
– -$15.6K -1,500 Closed
Squarepoint
114
Squarepoint
New York
– -$15.5K -1,488 Closed
VPIM
115
Vanguard Personalized Indexing Management
California
– -$14.7K -1,419 Closed
SFA
116
Sequoia Financial Advisors
Ohio
– -$14.1K -1,354 Closed
QOP
117
Quinn Opportunity Partners
Virginia
– -$13.8K -1,331 Closed
DAS
118
Dynamic Advisor Solutions
Arizona
– -$13.2K -1,267 Closed
EH
119
Equitable Holdings
New York
– -$13K -1,253 Closed
Victory Capital Management
120
Victory Capital Management
Texas
– -$12.6K -1,216 Closed
Creative Planning
121
Creative Planning
Kansas
– -$12.1K -1,168 Closed
BJL
122
Brighton Jones LLC
Washington
– -$12K -1,159 Closed
HSA
123
HBK Sorce Advisory
Pennsylvania
– -$10.6K -1,019 Closed
Commonwealth Equity Services
124
Commonwealth Equity Services
Massachusetts
– -$10K -966 Closed
Wolverine Trading
125
Wolverine Trading
Illinois
– -$9.03K -895 Closed
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