BLUE

bluebird bio
BLUE

Overview Fund Activity
Delisted

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

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247 hedge funds and large institutions have $2.78B invested in bluebird bio in 2020 Q1 according to their latest regulatory filings, with 30 funds opening new positions, 96 increasing their positions, 75 reducing their positions, and 55 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
247
Holders Change
-27
Holders Change %
-9.85%
% of All Funds
5.46%
Holding in Top 10
3
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.07%
New
30
Increased
96
Reduced
75
Closed
55
Calls
$24.2M
Puts
$35.1M
Net Calls
-$10.9M
Net Calls Change
-$42.1M

Top Buyers

1
Victory Capital Management
Victory Capital Management
Texas
+$73.3M
2
Royal Bank of Canada
Royal Bank of Canada
Ontario, Canada
+$50.9M
3
Adage Capital Partners
Adage Capital Partners
Massachusetts
+$46.9M
4
PIM
Platinum Investment Management
Australia
+$20.8M
5
AC
Armistice Capital
New York
+$14.3M

Top Sellers

1
Fidelity Investments
Fidelity Investments
Massachusetts
-$112M
2
Capital World Investors
Capital World Investors
California
-$42.6M
3
Wellington Management Group
Wellington Management Group
Massachusetts
-$30.2M
4
Capital International Investors
Capital International Investors
California
-$29.4M
5
LGM
Logos Global Management
California
-$17.9M
Name Holding Trade Value Shares
Change 		Shares
Change %
California Public Employees Retirement System
51
California Public Employees Retirement System
California
$5.19M -$285K -479 -5%
Two Sigma Advisers
52
Two Sigma Advisers
New York
$5.15M -$18.5K -31 -0.4%
Swiss National Bank
53
Swiss National Bank
Switzerland
$4.93M +$73.2K +123 +2%
Sumitomo Mitsui Trust Group
54
Sumitomo Mitsui Trust Group
Japan
$4.88M -$6.55M -11,006 -57%
NAMA
55
Nikko Asset Management Americas
New York
$4.88M -$6.55M -11,006 -57%
PP
56
PDT Partners
New York
$4.78M – – –
AA
57
ALPS Advisors
Colorado
$4.61M -$514K -864 -10%
AG
58
Artal Group
Luxembourg
$4.6M – – –
FLAM
59
First Light Asset Management
Minnesota
$4.23M +$1.26M +2,120 +43%
California State Teachers Retirement System (CalSTRS)
60
California State Teachers Retirement System (CalSTRS)
California
$4.22M +$298K +500 +8%
AIMCA
61
Alberta Investment Management Corp (AIMCo)
Alberta, Canada
$4.2M +$785K +1,318 +23%
Citigroup
62
Citigroup
New York
$4.13M +$936K +1,573 +29%
TCM
63
Tekla Capital Management
Massachusetts
$3.87M -$528K -887 -12%
CSS
64
Cubist Systematic Strategies
Connecticut
$3.83M +$2.54M +4,265 +197%
Franklin Resources
65
Franklin Resources
California
$3.67M +$31.5K +53 +0.9%
State Board of Administration of Florida Retirement System
66
State Board of Administration of Florida Retirement System
Florida
$3.61M – – –
AllianceBernstein
67
AllianceBernstein
Tennessee
$3.43M +$946K +1,590 +38%
Group One Trading
68
Group One Trading
Illinois
$3.27M +$2.3M +3,857 +237%
Barclays
69
Barclays
United Kingdom
$3.1M -$3.34M -5,614 -52%
RPAM
70
Rhenman & Partners Asset Management
Sweden
$3.08M +$460K +772 +18%
Russell Investments Group
71
Russell Investments Group
United Kingdom
$2.96M +$2.35M +3,946 +385%
RhumbLine Advisers
72
RhumbLine Advisers
Massachusetts
$2.84M +$612K +1,028 +27%
TC
73
Tarsadia Capital
New York
$2.75M +$2.75M +4,612 New
PPA
74
Parametric Portfolio Associates
Washington
$2.55M +$105K +177 +4%
Principal Financial Group
75
Principal Financial Group
Iowa
$2.5M -$32.2K -54 -1%
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