BLUE

bluebird bio
BLUE

Overview Fund Activity
Delisted

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

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186 hedge funds and large institutions have $182M invested in bluebird bio in 2023 Q4 according to their latest regulatory filings, with 54 funds opening new positions, 63 increasing their positions, 39 reducing their positions, and 32 closing their positions.

Holders
186
Holders Change
+19
Holders Change %
+11.38%
% of All Funds
2.73%
Holding in Top 10
–
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-100%
% of All Funds
–
New
54
Increased
63
Reduced
39
Closed
32
Calls
$5.42M
Puts
$5.25M
Net Calls
+$166K
Net Calls Change
+$1.28M

Top Buyers

1
Alyeska Investment Group
1
Alyeska Investment Group
Illinois
$9.54M
2
Norges Bank
2
Norges Bank
Norway
$5.51M
3
PAI
3
Palo Alto Investors
California
$4.6M
4
Vanguard Group
4
Vanguard Group
Pennsylvania
$12.1M
5
GCM
5
Ghisallo Capital Management
Massachusetts
$4.35M

Top Sellers

1
BBA
1
Baker Bros. Advisors
New York
$0
2
PHS
2
PFM Health Sciences
California
$2.82M
3
TCM
3
Tang Capital Management
California
$2.35M
4
WP
4
Woodline Partners
California
$690K
5
CS
5
Credit Suisse
Switzerland
$97.5K
Name Holding Trade Value Shares
Change 		Shares
Change %
Bank of America
26
Bank of America
North Carolina
$2.24M +$561K +20,339 +33%
HI
27
HBK Investments
Texas
$2.07M +$2.07M +75,000 New
Susquehanna International Group
28
Susquehanna International Group
Pennsylvania
$2.05M +$1.23M +44,526 +150%
Citadel Advisors
29
Citadel Advisors
Florida
$2.05M +$968K +35,073 +90%
Rafferty Asset Management
30
Rafferty Asset Management
New York
$1.97M -$90.4K -3,277 -4%
Goldman Sachs
31
Goldman Sachs
New York
$1.76M +$712K +25,790 +68%
CIM
32
Contrarius Investment Management
Jersey
$1.67M -$140K -5,075 -8%
Qube Research & Technologies (QRT)
33
Qube Research & Technologies (QRT)
United Kingdom
$1.55M +$1.55M +56,229 New
Northern Trust
34
Northern Trust
Illinois
$1.38M -$182K -6,589 -12%
MCM
35
Masters Capital Management
Georgia
$1.38M +$1.38M +50,000 New
Group One Trading
36
Group One Trading
Illinois
$1.31M +$391K +14,169 +43%
Squarepoint
37
Squarepoint
New York
$1.18M +$1.02M +37,103 +641%
WAM
38
Weiss Asset Management
Massachusetts
$1.04M +$1.04M +37,500 New
Jacobs Levy Equity Management
39
Jacobs Levy Equity Management
New Jersey
$1.01M -$1.53M -55,329 -60%
Deutsche Bank
40
Deutsche Bank
Germany
$960K +$4.22K +153 +0.4%
UBS Group
41
UBS Group
Switzerland
$946K +$548K +19,873 +138%
JFG
42
Jefferies Financial Group
New York
$870K -$141K -5,116 -14%
Barclays
43
Barclays
United Kingdom
$862K -$4.22K -153 -0.5%
Wellington Management Group
44
Wellington Management Group
Massachusetts
$847K +$43.4K +1,574 +5%
Point72 Asset Management
45
Point72 Asset Management
Connecticut
$806K +$794K +28,762 +6,280%
Citigroup
46
Citigroup
New York
$736K -$34K -1,233 -4%
LPC
47
Lion Point Capital
New York
$733K – – –
BNP Paribas Financial Markets
48
BNP Paribas Financial Markets
France
$724K +$428K +15,523 +145%
WP
49
Woodline Partners
California
$690K -$3.08M -111,430 -82%
MIM
50
Monashee Investment Management
Massachusetts
$690K +$690K +25,000 New
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