BLUE

bluebird bio
BLUE

Overview Fund Activity
Delisted

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

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192 hedge funds and large institutions have $3.12B invested in bluebird bio in 2015 Q3 according to their latest regulatory filings, with 21 funds opening new positions, 93 increasing their positions, 59 reducing their positions, and 63 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
192
Holders Change
-43
Holders Change %
-18.3%
% of All Funds
5.37%
Holding in Top 10
4
Holding in Top 10 Change
-4
Holding in Top 10 Change %
-50%
% of All Funds
0.11%
New
21
Increased
93
Reduced
59
Closed
63
Calls
$59.5M
Puts
$64M
Net Calls
-$4.52M
Net Calls Change
-$9.39M

Top Buyers

1
Baillie Gifford & Co
1
Baillie Gifford & Co
United Kingdom
$409M
2
Viking Global Investors
2
Viking Global Investors
Connecticut
$52.7M
3
O
3
OppenheimerFunds
New York
$96.5M
4
First Trust Advisors
4
First Trust Advisors
Illinois
$28.2M
5
O
5
OrbiMed
New York
$102M

Top Sellers

1
TCP
1
Tourbillon Capital Partners
New York
$0
2
PC
2
Passport Capital
California
$0
3
Lord, Abbett & Co
3
Lord, Abbett & Co
New Jersey
$17.1M
4
Two Sigma Investments
4
Two Sigma Investments
New York
$0
5
KCM
5
Kingdon Capital Management
New York
$0
Name Holding Trade Value Shares
Change 		Shares
Change %
Ameriprise
26
Ameriprise
Minnesota
$19.2M +$10M +9,062 +110%
Invesco
27
Invesco
Georgia
$19.2M -$2.08M -1,881 -10%
Geode Capital Management
28
Geode Capital Management
Massachusetts
$18.1M +$2.65M +2,388 +17%
Lord, Abbett & Co
29
Lord, Abbett & Co
New Jersey
$17.1M -$34.7M -31,292 -67%
Susquehanna International Group
30
Susquehanna International Group
Pennsylvania
$16.7M +$7.72M +6,967 +86%
UBS AM
31
UBS AM
Illinois
$14.7M -$7.66M -6,912 -34%
RCM
32
RA Capital Management
Massachusetts
$14.3M +$4.96M +4,477 +53%
Mitsubishi UFJ Trust & Banking
33
Mitsubishi UFJ Trust & Banking
Japan
$14.2M +$3.55M +3,201 +33%
Bank of New York Mellon
34
Bank of New York Mellon
New York
$13.5M -$377K -340 -3%
Millennium Management
35
Millennium Management
New York
$13.4M +$114K +103 +0.9%
RI
36
RTW Investments
New York
$13M +$3.99M +3,597 +44%
JHIU
37
Janus Henderson Investors US
Colorado
$12.7M -$5.3M -4,785 -29%
TCIM
38
TIAA CREF Investment Management
New York
$12.7M -$94.2K -85 -0.7%
BBA
39
Baker Bros. Advisors
New York
$12.1M -$856K -772 -7%
American Century Companies
40
American Century Companies
Missouri
$11.6M +$678K +612 +6%
New York State Common Retirement Fund
41
New York State Common Retirement Fund
New York
$11.5M +$2.64M +2,385 +30%
Axa
42
Axa
France
$11.4M +$4.31M +3,888 +60%
Northern Trust
43
Northern Trust
Illinois
$11.3M -$10.9M -9,796 -49%
State of Tennessee, Department of Treasury
44
State of Tennessee, Department of Treasury
Tennessee
$11.3M +$4.28M +3,859 +61%
QF
45
QVT Financial
New York
$10.1M – – –
CCI
46
Columbus Circle Investors
$10M -$3.09M -2,786 -24%
Bank of America
47
Bank of America
North Carolina
$9.61M +$2.64M +2,381 +38%
Artisan Partners
48
Artisan Partners
Wisconsin
$8.45M +$2.92M +2,637 +53%
Voloridge Investment Management
49
Voloridge Investment Management
Florida
$8.04M -$811K -732 -9%
TCM
50
Tekla Capital Management
Massachusetts
$8.04M +$4.54M +4,096 +130%
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