BLUE

bluebird bio
BLUE

Overview Fund Activity
Delisted

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

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200 hedge funds and large institutions have $3.01B invested in bluebird bio in 2016 Q3 according to their latest regulatory filings, with 45 funds opening new positions, 64 increasing their positions, 60 reducing their positions, and 21 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
200
Holders Change
+23
Holders Change %
+12.99%
% of All Funds
5.34%
Holding in Top 10
1
Holding in Top 10 Change
-3
Holding in Top 10 Change %
-75%
% of All Funds
0.03%
New
45
Increased
64
Reduced
60
Closed
21
Calls
$51.9M
Puts
$58M
Net Calls
-$6.06M
Net Calls Change
-$3.65M

Top Buyers

1
T. Rowe Price Associates
1
T. Rowe Price Associates
Maryland
$228M
2
Victory Capital Management
2
Victory Capital Management
Texas
$44.4M
3
Millennium Management
3
Millennium Management
New York
$44.3M
4
Balyasny Asset Management
4
Balyasny Asset Management
Illinois
$37.2M
5
PC
5
Passport Capital
California
$19.6M

Top Sellers

1
O
1
OppenheimerFunds
New York
$53.4M
2
Capital Research Global Investors
2
Capital Research Global Investors
California
$271M
3
RI
3
RTW Investments
New York
$5.95M
4
TAM
4
Tiverton Asset Management
Delaware
$1.87M
5
GPP
5
Great Point Partners
Connecticut
$0
Name Holding Trade Value Shares
Change 		Shares
Change %
BlackRock
101
BlackRock
New York
$1.64M +$1.15M +1,313 +238%
State Board of Administration of Florida Retirement System
102
State Board of Administration of Florida Retirement System
Florida
$1.56M +$21.1K +24 +1%
CCM
103
Century Capital Management
Massachusetts
$1.51M +$1.51M +1,724 New
AIG
104
American International Group
New York
$1.45M +$1.76K +2 +0.1%
Principal Financial Group
105
Principal Financial Group
Iowa
$1.44M +$78.2K +89 +6%
PA
106
Profund Advisors
Maryland
$1.39M -$33.4K -38 -2%
EA
107
Emerald Acquisition
Washington
$1.38M +$978K +1,114 +245%
RSCM
108
Rock Springs Capital Management
Maryland
$1.36M – – –
CWM
109
Cabot Wealth Management
Massachusetts
$1.33M -$82.6K -94 -6%
WC
110
Woodstock Corp
Massachusetts
$1.33M – – –
Citadel Advisors
111
Citadel Advisors
Florida
$1.28M +$1.28M +1,458 New
American Century Companies
112
American Century Companies
Missouri
$1.24M +$1.24M +1,414 New
PP
113
Paloma Partners
Connecticut
$1.24M +$1.24M +1,409 New
D.E. Shaw & Co
114
D.E. Shaw & Co
New York
$1.22M +$1.22M +1,389 New
SGH
115
Sivik Global Healthcare
Connecticut
$1.2M -$158K -180 -12%
Jane Street
116
Jane Street
New York
$1.18M +$518K +590 +78%
MAM
117
Martingale Asset Management
Massachusetts
$1.16M +$193K +220 +20%
Schroder Investment Management Group
118
Schroder Investment Management Group
United Kingdom
$1.14M -$573K -653 -34%
VIA
119
Vident Investment Advisory
Georgia
$1.12M -$10.5K -12 -0.9%
CG
120
Cutler Group
California
$1.12M -$50K -57 -4%
SG Americas Securities
121
SG Americas Securities
New York
$1.11M +$1.11M +1,268 New
Group One Trading
122
Group One Trading
Illinois
$1.06M -$749K -853 -41%
Canada Pension Plan Investment Board
123
Canada Pension Plan Investment Board
Ontario, Canada
$874K -$468K -533 -35%
Neuberger Berman Group
124
Neuberger Berman Group
New York
$868K +$868K +988 New
ST
125
Spot Trading
Illinois
$844K +$555K +632 +192%
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5
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