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 %
Barclays
26
Barclays
United Kingdom
$3.81M +$3.09M +24,401 +428%
Bank of America
27
Bank of America
North Carolina
$3.76M +$3.32M +26,250 +766%
GIM
28
Granahan Investment Management
Massachusetts
$3.73M +$3.73M +29,454 New
FAIM
29
Financial Advocates Investment Management
Washington
$3.54M +$2.72M +1,732 +332%
Voloridge Investment Management
30
Voloridge Investment Management
Florida
$3.28M -$290K -2,287 -8%
Morgan Stanley
31
Morgan Stanley
New York
$2.99M -$1.12M -8,819 -27%
IC
32
Ikarian Capital
Texas
$2.93M +$2.93M +23,131 New
HM
33
HealthCor Management
New York
$2.88M +$2.88M +22,750 New
CSS
34
Cubist Systematic Strategies
Connecticut
$2.87M +$2.27M +17,910 +375%
Squarepoint
35
Squarepoint
New York
$2.84M +$2.66M +21,048 +1,564%
Mirae Asset Global Investments
36
Mirae Asset Global Investments
South Korea
$2.28M +$299K +2,358 +15%
BNP Paribas Financial Markets
37
BNP Paribas Financial Markets
France
$2.09M +$909K +7,177 +77%
Bank of New York Mellon
38
Bank of New York Mellon
New York
$2.05M +$162K +1,279 +9%
PP
39
PDT Partners
New York
$1.66M -$1.62M -12,836 -49%
Wellington Management Group
40
Wellington Management Group
Massachusetts
$1.55M -$37.3M -294,797 -96%
ECM
41
ExodusPoint Capital Management
New York
$1.54M +$445K +3,517 +41%
Charles Schwab
42
Charles Schwab
California
$1.27M +$63.9K +505 +5%
Simplex Trading
43
Simplex Trading
Illinois
$1.02M +$88.2K +697 +10%
Group One Trading
44
Group One Trading
Illinois
$997K +$626K +4,948 +169%
Tudor Investment Corp
45
Tudor Investment Corp
Connecticut
$976K -$137K -1,082 -12%
GCP
46
GSA Capital Partners
United Kingdom
$959K +$959K +7,579 New
Hudson Bay Capital Management
47
Hudson Bay Capital Management
Connecticut
$886K +$886K +7,000 New
UBS Group
48
UBS Group
Switzerland
$877K +$859K +6,777 +4,841%
PAM
49
Panagora Asset Management
Massachusetts
$855K +$855K +6,757 New
Jacobs Levy Equity Management
50
Jacobs Levy Equity Management
New Jersey
$805K -$28.6K -226 -3%
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