BLUE

bluebird bio
BLUE

Overview Fund Activity
Delisted

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

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123 hedge funds and large institutions have $845M invested in bluebird bio in 2014 Q3 according to their latest regulatory filings, with 39 funds opening new positions, 54 increasing their positions, 20 reducing their positions, and 20 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
123
Holders Change
+19
Holders Change %
+18.27%
% of All Funds
3.57%
Holding in Top 10
3
Holding in Top 10 Change
+2
Holding in Top 10 Change %
+200%
% of All Funds
0.09%
New
39
Increased
54
Reduced
20
Closed
20
Calls
$19M
Puts
$6.3M
Net Calls
+$12.7M
Net Calls Change
+$8.9M

Top Buyers

1
T. Rowe Price Associates
T. Rowe Price Associates
Maryland
$38.3M
2
Fidelity Investments
Fidelity Investments
Massachusetts
$154M
3
Capital Research Global Investors
Capital Research Global Investors
California
$126M
4
State Street
State Street
Massachusetts
$26.6M
5
BIT
BlackRock Institutional Trust
California
$21M

Top Sellers

1
TRV
Third Rock Ventures
Massachusetts
$43.6M
2
CCM
Camber Capital Management
Massachusetts
$0
3
OIM
Oracle Investment Management
Connecticut
$0
4
PC
PointState Capital
New York
$4.66M
5
Goldman Sachs
Goldman Sachs
New York
$9.13M
Name Holding Trade Value Shares
Change 		Shares
Change %
Principal Financial Group
51
Principal Financial Group
Iowa
$1.9M +$20.5K +44 +1%
Bank of America
52
Bank of America
North Carolina
$1.83M +$26K +56 +1%
FT
53
Fiduciary Trust
Massachusetts
$1.76M -$27K -58 -2%
TRSOTSOK
54
Teachers Retirement System of the State of Kentucky
Kentucky
$1.74M -$223K -479 -11%
Charles Schwab
55
Charles Schwab
California
$1.72M +$535K +1,150 +45%
PHS
56
PFM Health Sciences
California
$1.58M +$1.58M +3,389 New
California Public Employees Retirement System
57
California Public Employees Retirement System
California
$1.52M +$1.52M +3,280 New
California State Teachers Retirement System (CalSTRS)
58
California State Teachers Retirement System (CalSTRS)
California
$1.44M +$193K +416 +15%
OA
59
Omega Advisors
New York
$1.39M +$1.39M +2,980 New
BJL
60
Brighton Jones LLC
Washington
$1.29M +$1.29M +2,779 New
TA
61
Teachers Advisors
New York
$1.28M +$312K +671 +32%
GTC
62
Ghost Tree Capital
New York
$1.26M +$1.26M +2,702 New
LCG
63
Lisanti Capital Growth
New York
$1.24M +$1.24M +2,661 New
AllianceBernstein
64
AllianceBernstein
Tennessee
$1.07M +$25.1K +54 +2%
EI
65
EAM Investors
California
$1.06M +$247K +531 +31%
BlackRock
66
BlackRock
New York
$1.04M +$1.02M +2,206 +6,303%
AQR Capital Management
67
AQR Capital Management
Connecticut
$901K +$901K +1,938 New
DCM
68
DAFNA Capital Management
California
$897K +$897K +1,930 New
RFC
69
Russell Frank Company
Washington
$868K +$213K +458 +33%
AP
70
AlpInvest Partners
Netherlands
$845K +$845K +1,817 New
ProShare Advisors
71
ProShare Advisors
Maryland
$839K -$28.4K -61 -3%
TC
72
TFS Capital
Pennsylvania
$802K +$802K +1,725 New
SO
73
STRS Ohio
Ohio
$793K +$793K +1,706 New
TD Asset Management
74
TD Asset Management
Ontario, Canada
$764K +$764K +1,644 New
Swiss National Bank
75
Swiss National Bank
Switzerland
$753K +$161K +347 +27%
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