BLUE

bluebird bio
BLUE

Overview Fund Activity
Delisted

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

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196 hedge funds and large institutions have $996M invested in bluebird bio in 2021 Q3 according to their latest regulatory filings, with 26 funds opening new positions, 63 increasing their positions, 60 reducing their positions, and 58 closing their positions.

Holders
196
Holders Change
-35
Holders Change %
-15.15%
% of All Funds
3.44%
Holding in Top 10
–
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-100%
% of All Funds
–
New
26
Increased
63
Reduced
60
Closed
58
Calls
$9.13M
Puts
$17.8M
Net Calls
-$8.64M
Net Calls Change
-$2.12M

Top Buyers

1
BBA
1
Baker Bros. Advisors
New York
$47.8M
2
State Street
2
State Street
Massachusetts
$85.4M
3
EC
3
EcoR1 Capital
California
$15.3M
4
AC
4
Armistice Capital
New York
$47.2M
5
SC
5
Sessa Capital
New York
$35.1M

Top Sellers

1
SCM
1
Suvretta Capital Management
New York
$0
2
Victory Capital Management
2
Victory Capital Management
Texas
$0
3
Point72 Asset Management
3
Point72 Asset Management
Connecticut
$0
4
DM
4
Deerfield Management
New York
$0
5
CS
5
Credit Suisse
Switzerland
$38.3M
Name Holding Trade Value Shares
Change 		Shares
Change %
QOP
26
Quinn Opportunity Partners
Virginia
$4.4M +$289K +1,166 +7%
Mirae Asset Global Investments
27
Mirae Asset Global Investments
South Korea
$4.05M +$750K +3,030 +23%
UBS Group
28
UBS Group
Switzerland
$3.63M +$3.38M +13,654 +1,367%
PAMS
29
Pictet Asset Management (Switzerland)
Switzerland
$3.62M +$3.62M +14,633 New
Assenagon Asset Management
30
Assenagon Asset Management
Luxembourg
$3.52M +$3.52M +14,220 New
MP
31
Mangrove Partners
Connecticut
$3.36M +$466K +1,884 +16%
Rafferty Asset Management
32
Rafferty Asset Management
New York
$3.33M +$1.79M +7,237 +116%
Federated Hermes
33
Federated Hermes
Pennsylvania
$3.3M +$3.3M +13,325 New
PP
34
PDT Partners
New York
$3.28M +$1.61M +6,492 +96%
Charles Schwab
35
Charles Schwab
California
$3.25M -$5.39M -21,765 -62%
Group One Trading
36
Group One Trading
Illinois
$3.18M +$207K +836 +7%
Swiss National Bank
37
Swiss National Bank
Switzerland
$2.85M +$21K +85 +0.7%
Citigroup
38
Citigroup
New York
$2.85M -$460K -1,857 -14%
PPA
39
Parametric Portfolio Associates
Washington
$2.6M -$737K -2,977 -22%
Swedbank
40
Swedbank
Sweden
$2.58M – – –
Jane Street
41
Jane Street
New York
$2.55M +$494K +1,997 +24%
Russell Investments Group
42
Russell Investments Group
United Kingdom
$2.36M -$178K -719 -7%
Wells Fargo
43
Wells Fargo
California
$2.24M -$1.51M -6,116 -40%
Bank of America
44
Bank of America
North Carolina
$2.17M -$1.33M -5,388 -38%
Deutsche Bank
45
Deutsche Bank
Germany
$2M +$897K +3,622 +81%
BNP Paribas Financial Markets
46
BNP Paribas Financial Markets
France
$1.89M +$429K +1,735 +29%
RhumbLine Advisers
47
RhumbLine Advisers
Massachusetts
$1.88M +$16.6K +67 +0.9%
Barclays
48
Barclays
United Kingdom
$1.79M +$346K +1,399 +24%
California State Teachers Retirement System (CalSTRS)
49
California State Teachers Retirement System (CalSTRS)
California
$1.75M -$27.7K -112 -2%
State of Wisconsin Investment Board
50
State of Wisconsin Investment Board
Wisconsin
$1.67M – – –
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