BLUE

bluebird bio
BLUE

Overview Fund Activity
Delisted

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

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162 hedge funds and large institutions have $419M invested in bluebird bio in 2022 Q3 according to their latest regulatory filings, with 36 funds opening new positions, 58 increasing their positions, 35 reducing their positions, and 24 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
162
Holders Change
+11
Holders Change %
+7.28%
% of All Funds
2.8%
Holding in Top 10
1
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.02%
New
36
Increased
58
Reduced
35
Closed
24
Calls
$8.09M
Puts
$6.42M
Net Calls
+$1.68M
Net Calls Change
+$4.36M

Top Buyers

1
State Street
1
State Street
Massachusetts
$80.5M
2
FLSM
2
Frazier Life Sciences Management
California
$9.12M
3
Invesco
3
Invesco
Georgia
$9.61M
4
WP
4
Woodline Partners
California
$7.21M
5
BlackRock
5
BlackRock
New York
$43.7M

Top Sellers

1
Wellington Management Group
1
Wellington Management Group
Massachusetts
$1.55M
2
Renaissance Technologies
2
Renaissance Technologies
New York
$4.79M
3
Millennium Management
3
Millennium Management
New York
$10.4M
4
D.E. Shaw & Co
4
D.E. Shaw & Co
New York
$311K
5
Federated Hermes
5
Federated Hermes
Pennsylvania
$3.88M
Name Holding Trade Value Shares
Change 		Shares
Change %
RhumbLine Advisers
51
RhumbLine Advisers
Massachusetts
$771K +$98.7K +780 +15%
Jennison Associates
52
Jennison Associates
New York
$770K +$770K +6,086 New
AllianceBernstein
53
AllianceBernstein
Tennessee
$767K -$49.6K -392 -6%
BCM
54
Bayesian Capital Management
New York
$757K +$757K +5,980 New
Balyasny Asset Management
55
Balyasny Asset Management
Illinois
$749K +$173K +1,366 +30%
Fidelity Investments
56
Fidelity Investments
Massachusetts
$698K +$19.6K +155 +3%
SXL
57
Summit X LLC
Missouri
$651K +$651K +5,171 New
Belvedere Trading
58
Belvedere Trading
Illinois
$646K +$49.5K +401 +8%
Wells Fargo
59
Wells Fargo
California
$623K +$240K +1,893 +63%
BC
60
Birchview Capital
Vermont
$620K – – –
HWAM
61
Hennion & Walsh Asset Management
New Jersey
$588K -$14.9K -118 -2%
BFM
62
Boothbay Fund Management
New York
$518K +$518K +4,089 New
MAM
63
Monaco Asset Management
Monaco
$506K -$1.43M -11,307 -74%
PVI
64
Pura Vida Investments
New York
$504K +$504K +3,980 New
SSA
65
Schonfeld Strategic Advisors
New York
$480K +$387K +3,047 +415%
CANY
66
Caxton Associates (New York)
New York
$428K -$965K -7,626 -69%
EFM
67
E Fund Management
China
$422K +$422K +3,336 New
QT
68
Quantbot Technologies
New York
$401K +$75.9K +600 +23%
Walleye Capital
69
Walleye Capital
New York
$401K +$401K +3,165 New
AQR Capital Management
70
AQR Capital Management
Connecticut
$349K +$349K +2,802 New
BC
71
BIT Capital
Germany
$348K -$60.2K -528 -15%
TRCT
72
Tower Research Capital (TRC)
New York
$336K +$168K +1,329 +100%
PHK
73
Point72 Hong Kong
Hong Kong
$330K +$238K +1,883 +260%
D.E. Shaw & Co
74
D.E. Shaw & Co
New York
$311K -$3.96M -31,289 -93%
New York State Common Retirement Fund
75
New York State Common Retirement Fund
New York
$282K +$885 +7 +0.3%
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