BLUE

bluebird bio
BLUE

Overview Fund Activity
Delisted

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

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247 hedge funds and large institutions have $2.78B invested in bluebird bio in 2020 Q1 according to their latest regulatory filings, with 30 funds opening new positions, 96 increasing their positions, 75 reducing their positions, and 55 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
247
Holders Change
-27
Holders Change %
-9.85%
% of All Funds
5.46%
Holding in Top 10
3
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.07%
New
30
Increased
96
Reduced
75
Closed
55
Calls
$24.2M
Puts
$35.1M
Net Calls
-$10.9M
Net Calls Change
-$42.1M

Top Buyers

1
Victory Capital Management
Victory Capital Management
Texas
+$73.3M
2
Royal Bank of Canada
Royal Bank of Canada
Ontario, Canada
+$50.9M
3
Adage Capital Partners
Adage Capital Partners
Massachusetts
+$46.9M
4
PIM
Platinum Investment Management
Australia
+$20.8M
5
AC
Armistice Capital
New York
+$14.3M

Top Sellers

1
Fidelity Investments
Fidelity Investments
Massachusetts
-$112M
2
Capital World Investors
Capital World Investors
California
-$42.6M
3
Wellington Management Group
Wellington Management Group
Massachusetts
-$30.2M
4
Capital International Investors
Capital International Investors
California
-$29.4M
5
LGM
Logos Global Management
California
-$17.9M
Name Holding Trade Value Shares
Change 		Shares
Change %
PI
76
PEAK6 Investments
Illinois
$2.48M +$1.43M +2,403 +137%
FCMI
77
Foresite Capital Management IV
California
$2.3M +$2.3M +3,860 New
GH
78
GAM Holding
Switzerland
$2.28M – – –
SGA
79
Sector Gamma AS
Norway
$2.23M -$640K -1,074 -22%
State of Wisconsin Investment Board
80
State of Wisconsin Investment Board
Wisconsin
$2.2M -$15.5K -26 -0.7%
ECG
81
EPIQ Capital Group
California
$2.2M +$963K +1,618 +78%
Thrivent Financial for Lutherans
82
Thrivent Financial for Lutherans
Minnesota
$1.93M +$1.54M +2,588 +396%
MGI
83
MayTech Global Investments
New York
$1.92M -$68.5K -115 -3%
State of New Jersey Common Pension Fund D
84
State of New Jersey Common Pension Fund D
New Jersey
$1.92M – – –
BBA
85
Baker Bros. Advisors
New York
$1.84M – – –
Hudson Bay Capital Management
86
Hudson Bay Capital Management
Connecticut
$1.84M +$1.84M +3,088 New
Legal & General Group
87
Legal & General Group
United Kingdom
$1.84M -$7.15K -12 -0.4%
Invesco
88
Invesco
Georgia
$1.75M -$4.48M -7,523 -72%
EAM
89
Erste Asset Management
Austria
$1.67M – – –
GC
90
Guggenheim Capital
Illinois
$1.56M -$342K -575 -18%
KBC Group
91
KBC Group
Belgium
$1.52M +$20.3K +34 +1%
BNP Paribas Financial Markets
92
BNP Paribas Financial Markets
France
$1.46M +$813K +1,366 +126%
TI
93
Trexquant Investment
Connecticut
$1.35M +$1.35M +2,258 New
SEI Investments
94
SEI Investments
Pennsylvania
$1.33M +$484K +814 +58%
TD Asset Management
95
TD Asset Management
Ontario, Canada
$1.21M -$390K -656 -24%
Simplex Trading
96
Simplex Trading
Illinois
$1.21M +$35.1K +59 +3%
SG Americas Securities
97
SG Americas Securities
New York
$1.21M +$1.14M +1,913 +1,594%
DCM
98
DAFNA Capital Management
California
$1.17M – – –
VanEck Associates
99
VanEck Associates
New York
$1.15M +$57.2K +96 +5%
SB
100
Samsara BioCapital
California
$1.14M +$1.14M +1,914 New
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