BLUE

bluebird bio
BLUE

Overview Fund Activity
Delisted

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

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175 hedge funds and large institutions have $308M invested in bluebird bio in 2023 Q2 according to their latest regulatory filings, with 26 funds opening new positions, 67 increasing their positions, 41 reducing their positions, and 29 closing their positions.

Holders
175
Holders Change
-3
Holders Change %
-1.69%
% of All Funds
2.76%
Holding in Top 10
2
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+100%
% of All Funds
0.03%
New
26
Increased
67
Reduced
41
Closed
29
Calls
$3.89M
Puts
$5.74M
Net Calls
-$1.85M
Net Calls Change
-$1.36M

Top Buyers

1
GIM
1
Granahan Investment Management
Massachusetts
$16M
2
PHS
2
PFM Health Sciences
California
$24M
3
PAMS
3
Pictet Asset Management (Switzerland)
Switzerland
$15.4M
4
Walleye Capital
4
Walleye Capital
New York
$2.75M
5
Jacobs Levy Equity Management
5
Jacobs Levy Equity Management
New Jersey
$6.88M

Top Sellers

1
TCM
1
Tang Capital Management
California
$24.3M
2
DM
2
Deerfield Management
New York
$0
3
Citadel Advisors
3
Citadel Advisors
Florida
$1.44M
4
Millennium Management
4
Millennium Management
New York
$0
5
State Street
5
State Street
Massachusetts
$53.8M
Name Market Value Shares Shares
Change 		Shares
Change %
Mirae Asset Global Investments
26
Mirae Asset Global Investments
South Korea
$1.77M 540,471 +154,491 +40%
LPC
27
Lion Point Capital
New York
$1.75M 531,256 +531,256 New
Citigroup
28
Citigroup
New York
$1.74M 527,437 -791,731 -60%
Susquehanna International Group
29
Susquehanna International Group
Pennsylvania
$1.69M 513,134 -775,685 -60%
Morgan Stanley
30
Morgan Stanley
New York
$1.53M 465,813 -53,844 -10%
Citadel Advisors
31
Citadel Advisors
Florida
$1.44M 439,034 -1,742,336 -80%
UBS Group
32
UBS Group
Switzerland
$1.38M 419,187 -127,458 -23%
IC
33
Ikarian Capital
Texas
$1.36M 412,628 – –
Legal & General Group
34
Legal & General Group
United Kingdom
$1.35M 410,557 +369,774 +907%
Bank of New York Mellon
35
Bank of New York Mellon
New York
$1.33M 405,422 +6,842 +2%
Deutsche Bank
36
Deutsche Bank
Germany
$1.26M 383,191 +173,289 +83%
CSS
37
Cubist Systematic Strategies
Connecticut
$1.23M 373,488 +373,488 New
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
38
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Ontario, Canada
$1.16M 353,000 +353,000 New
PAM
39
Panagora Asset Management
Massachusetts
$1.16M 352,603 +30,302 +9%
Wells Fargo
40
Wells Fargo
California
$1.15M 350,871 +37,373 +12%
BNP Paribas Financial Markets
41
BNP Paribas Financial Markets
France
$1.09M 330,297 -282,195 -46%
Nuveen Asset Management
42
Nuveen Asset Management
Illinois
$1.01M 307,755 +13,546 +5%
Hudson Bay Capital Management
43
Hudson Bay Capital Management
Connecticut
$987K 300,000 – –
PA
44
Profund Advisors
Maryland
$970K 294,681 -2,337 -0.8%
Charles Schwab
45
Charles Schwab
California
$961K 292,054 +58,774 +25%
ECM
46
Endurant Capital Management
California
$926K 281,441 -243,618 -46%
ECM
47
ExodusPoint Capital Management
New York
$894K 271,627 +271,627 New
BC
48
Birchview Capital
Vermont
$820K 249,200 +50,000 +25%
Ameriprise
49
Ameriprise
Minnesota
$819K 248,834 +170,871 +219%
Simplex Trading
50
Simplex Trading
Illinois
$787K 239,291 -42,116 -15%
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