BLUE

bluebird bio
BLUE

Overview Fund Activity
Delisted

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

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241 hedge funds and large institutions have $5.87B invested in bluebird bio in 2019 Q3 according to their latest regulatory filings, with 24 funds opening new positions, 81 increasing their positions, 78 reducing their positions, and 54 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
241
Holders Change
-32
Holders Change %
-11.72%
% of All Funds
5.29%
Holding in Top 10
2
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+100%
% of All Funds
0.04%
New
24
Increased
81
Reduced
78
Closed
54
Calls
$81.7M
Puts
$103M
Net Calls
-$21.7M
Net Calls Change
+$9.31M

Top Buyers

1
Sands Capital Management
Sands Capital Management
Virginia
+$98.4M
2
Victory Capital Management
Victory Capital Management
Texas
+$87.6M
3
Capital World Investors
Capital World Investors
California
+$72.6M
4
Capital International Investors
Capital International Investors
California
+$32.3M
5
CII
Capital International Inc
California
+$30.6M

Top Sellers

1
Baillie Gifford & Co
Baillie Gifford & Co
United Kingdom
-$70.5M
2
Fidelity Investments
Fidelity Investments
Massachusetts
-$41.9M
3
First Trust Advisors
First Trust Advisors
Illinois
-$37.1M
4
Bank of America
Bank of America
North Carolina
-$22.2M
5
Goldman Sachs
Goldman Sachs
New York
-$20.1M
Name Holding Trade Value Shares
Change 		Shares
Change %
PCM
51
Peregrine Capital Management
Minnesota
$10.7M +$10.7M +9,017 New
California Public Employees Retirement System
52
California Public Employees Retirement System
California
$9.6M +$3.61M +3,034 +60%
Swiss National Bank
53
Swiss National Bank
Switzerland
$9.53M +$147K +124 +2%
AG
54
Artal Group
Luxembourg
$9.18M – – –
California State Teachers Retirement System (CalSTRS)
55
California State Teachers Retirement System (CalSTRS)
California
$8.06M +$22.6K +19 +0.3%
State Board of Administration of Florida Retirement System
56
State Board of Administration of Florida Retirement System
Florida
$7.26M -$67.8K -57 -0.9%
UBS Group
57
UBS Group
Switzerland
$6.71M +$2.95M +2,484 +79%
Millennium Management
58
Millennium Management
New York
$6.52M -$1.15M -963 -15%
Citigroup
59
Citigroup
New York
$6.27M +$534K +449 +9%
JPMorgan Chase & Co
60
JPMorgan Chase & Co
New York
$6.14M +$802K +674 +15%
BNP Paribas Financial Markets
61
BNP Paribas Financial Markets
France
$5.87M +$4.05M +3,407 +223%
Rafferty Asset Management
62
Rafferty Asset Management
New York
$5.68M +$1.82M +1,530 +47%
Principal Financial Group
63
Principal Financial Group
Iowa
$5.2M -$194K -163 -4%
RPAM
64
Rhenman & Partners Asset Management
Sweden
$4.78M -$1.65M -1,390 -26%
GH
65
GAM Holding
Switzerland
$4.55M – – –
AIMCA
66
Alberta Investment Management Corp (AIMCo)
Alberta, Canada
$4.53M +$2.33M +1,961 +106%
RhumbLine Advisers
67
RhumbLine Advisers
Massachusetts
$4.33M +$35.7K +30 +0.8%
RSCM
68
Rock Springs Capital Management
Maryland
$4.32M – – –
FCM
69
Frontier Capital Management
Massachusetts
$4M -$5.86M -4,930 -59%
Morgan Stanley
70
Morgan Stanley
New York
$4M -$4.79M -4,029 -55%
State of New Jersey Common Pension Fund D
71
State of New Jersey Common Pension Fund D
New Jersey
$3.96M +$3.96M +3,327 New
AIM
72
ARK Investment Management
Florida
$3.69M -$6.26M -5,261 -63%
PPA
73
Parametric Portfolio Associates
Washington
$3.68M -$95.1K -80 -3%
BBA
74
Baker Bros. Advisors
New York
$3.67M – – –
Allianz Asset Management
75
Allianz Asset Management
Germany
$3.47M -$2.27M -1,903 -40%
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