BLUE

bluebird bio
BLUE

Overview Fund Activity
Delisted

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

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235 hedge funds and large institutions have $5.86B invested in bluebird bio in 2015 Q2 according to their latest regulatory filings, with 53 funds opening new positions, 71 increasing their positions, 88 reducing their positions, and 24 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
235
Holders Change
+25
Holders Change %
+11.9%
% of All Funds
6.34%
Holding in Top 10
8
Holding in Top 10 Change
+4
Holding in Top 10 Change %
+100%
% of All Funds
0.22%
New
53
Increased
71
Reduced
88
Closed
24
Calls
$117M
Puts
$112M
Net Calls
+$4.88M
Net Calls Change
-$22.4M

Top Buyers

1
Baillie Gifford & Co
Baillie Gifford & Co
United Kingdom
$623M
2
Vanguard Group
Vanguard Group
Pennsylvania
$349M
3
Fidelity Investments
Fidelity Investments
Massachusetts
$903M
4
O
OrbiMed
New York
$161M
5
Capital Research Global Investors
Capital Research Global Investors
California
$738M

Top Sellers

1
Millennium Management
Millennium Management
New York
$26.1M
2
BFA
BlackRock Fund Advisors
California
$116M
3
DM
Deerfield Management
New York
$55M
4
UBS AM
UBS AM
Illinois
$44M
5
FCM
Frontier Capital Management
Massachusetts
$3.71M
Name Holding Trade Value Shares
Change 		Shares
Change %
VOYA Investment Management
126
VOYA Investment Management
Georgia
$2.54M +$576K +264 +29%
AI
127
Axiom Investors
Connecticut
$2.47M -$207K -95 -8%
JRP
128
Jasper Ridge Partners
California
$2.2M – – –
MAM
129
Meeder Asset Management
Ohio
$2.17M +$2.17M +996 New
PPA
130
Parametric Portfolio Associates
Washington
$2.17M +$1.27M +581 +140%
CSS
131
Cubist Systematic Strategies
Connecticut
$2.1M -$13.1K -6 -0.6%
Citigroup
132
Citigroup
New York
$2.05M +$744K +341 +57%
TRSOTSOK
133
Teachers Retirement System of the State of Kentucky
Kentucky
$2.04M -$5.22M -2,393 -72%
NIT
134
NumerixS Investment Technologies
British Columbia, Canada
$1.96M +$1.96M +900 New
FLAM
135
First Light Asset Management
Minnesota
$1.96M -$1.03M -472 -35%
EEG
136
E.E. Geduld
$1.75M -$21.8K -10 -1%
Tudor Investment Corp
137
Tudor Investment Corp
Connecticut
$1.65M +$624K +286 +61%
TI
138
Trexquant Investment
Connecticut
$1.62M +$863K +396 +115%
SCM
139
Stevens Capital Management
Pennsylvania
$1.55M +$1.55M +709 New
Simplex Trading
140
Simplex Trading
Illinois
$1.51M +$262K +120 +21%
MAA
141
Managed Account Advisors
New Jersey
$1.51M -$1.45M -667 -49%
MOACM
142
Mutual of America Capital Management
New York
$1.49M – – –
BCM
143
BlueCrest Capital Management
Jersey
$1.45M +$1.45M +664 New
SCM
144
Suffolk Capital Management
New York
$1.37M -$1.3M -595 -49%
Federated Hermes
145
Federated Hermes
Pennsylvania
$1.35M – – –
Citadel Advisors
146
Citadel Advisors
Florida
$1.3M -$31.1M -14,250 -96%
Public Employees Retirement Association of Colorado
147
Public Employees Retirement Association of Colorado
Colorado
$1.15M +$179K +82 +18%
SGH
148
Schonfeld Group Holdings
New York
$1.08M +$1.08M +494 New
Neuberger Berman Group
149
Neuberger Berman Group
New York
$1.04M +$253K +116 +32%
SGH
150
Sivik Global Healthcare
Connecticut
$1.01M -$506K -232 -33%
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