BLUE

bluebird bio
BLUE

Overview Fund Activity
Delisted

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

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303 hedge funds and large institutions have $9B invested in bluebird bio in 2018 Q1 according to their latest regulatory filings, with 56 funds opening new positions, 93 increasing their positions, 113 reducing their positions, and 44 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
303
Holders Change
+7
Holders Change %
+2.36%
% of All Funds
6.95%
Holding in Top 10
2
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-33.33%
% of All Funds
0.05%
New
56
Increased
93
Reduced
113
Closed
44
Calls
$185M
Puts
$168M
Net Calls
+$17.5M
Net Calls Change
-$69.5M

Top Buyers

1
Capital International Investors
Capital International Investors
California
+$174M
2
Goldman Sachs
Goldman Sachs
New York
+$64.5M
3
Capital World Investors
Capital World Investors
California
+$56.9M
4
CGT
Capital Guardian Trust
California
+$49.9M
5
First Trust Advisors
First Trust Advisors
Illinois
+$46.7M

Top Sellers

1
Wellington Management Group
Wellington Management Group
Massachusetts
-$52.9M
2
Franklin Resources
Franklin Resources
California
-$52.1M
3
1832 Asset Management
1832 Asset Management
Ontario, Canada
-$51M
4
MWNA
Marshall Wace North America
New York
-$47.3M
5
ACH
ArrowMark Colorado Holdings
Colorado
-$39.5M
Name Holding Trade Value Shares
Change 		Shares
Change %
MSL
126
Mackay Shields LLC
New York
$2.5M +$2.5M +1,131 New
KCM
127
Kennedy Capital Management
Missouri
$2.4M -$37.6K -17 -2%
Voloridge Investment Management
128
Voloridge Investment Management
Florida
$2.36M -$9.36M -4,230 -80%
MAM
129
Martingale Asset Management
Massachusetts
$2.27M – – –
BG
130
Bellevue Group
Switzerland
$2.27M -$991K -448 -30%
Wolverine Trading
131
Wolverine Trading
Illinois
$2.24M -$2.08M -942 -48%
CII
132
Capital International Inc
California
$2.23M +$2.23M +1,009 New
BCM
133
BlueCrest Capital Management
Jersey
$2.21M +$2.21M +1,000 New
CSS
134
Cubist Systematic Strategies
Connecticut
$2.11M +$1.78M +805 +537%
EI
135
EAM Investors
California
$1.98M -$1.11M -501 -36%
EP
136
Elkfork Partners
Oregon
$1.97M -$582K -263 -23%
PAM
137
Panagora Asset Management
Massachusetts
$1.94M +$1.56M +705 +410%
Daiwa Securities Group
138
Daiwa Securities Group
Japan
$1.91M +$131K +59 +7%
SO
139
STRS Ohio
Ohio
$1.91M +$206K +93 +12%
Teacher Retirement System of Texas
140
Teacher Retirement System of Texas
Texas
$1.86M -$765K -346 -29%
TMAM
141
Tokio Marine Asset Management
Japan
$1.76M +$1.76M +795 New
SGH
142
Sivik Global Healthcare
Connecticut
$1.71M -$1.71M -772 -50%
VIA
143
Vident Investment Advisory
Georgia
$1.69M +$627K +283 +59%
TRSOTSOK
144
Teachers Retirement System of the State of Kentucky
Kentucky
$1.66M -$781K -353 -32%
KBC Group
145
KBC Group
Belgium
$1.64M -$263K -119 -14%
GHCM
146
Glen Harbor Capital Management
California
$1.63M -$478K -216 -23%
CIP
147
Chartwell Investment Partners
Pennsylvania
$1.62M -$31K -14 -2%
CAM
148
Congress Asset Management
Massachusetts
$1.56M +$37.6K +17 +2%
AR
149
Advisory Research
Illinois
$1.5M -$732K -331 -33%
Ohio Public Employees Retirement System (OPERS)
150
Ohio Public Employees Retirement System (OPERS)
Ohio
$1.48M -$1.23M -556 -45%
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