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 $5.17B invested in bluebird bio in 2017 Q2 according to their latest regulatory filings, with 50 funds opening new positions, 95 increasing their positions, 66 reducing their positions, and 19 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
241
Holders Change
+31
Holders Change %
+14.76%
% of All Funds
6.02%
Holding in Top 10
4
Holding in Top 10 Change
+2
Holding in Top 10 Change %
+100%
% of All Funds
0.1%
New
50
Increased
95
Reduced
66
Closed
19
Calls
$109M
Puts
$49M
Net Calls
+$59.7M
Net Calls Change
+$34.8M

Top Buyers

1
Wellington Management Group
Wellington Management Group
Massachusetts
+$63.1M
2
Fidelity Investments
Fidelity Investments
Massachusetts
+$61.7M
3
Capital Research Global Investors
Capital Research Global Investors
California
+$51.8M
4
Vanguard Group
Vanguard Group
Pennsylvania
+$36.1M
5
CAM
Cormorant Asset Management
Massachusetts
+$28.9M

Top Sellers

1
Franklin Resources
Franklin Resources
California
-$50.4M
2
Alyeska Investment Group
Alyeska Investment Group
Illinois
-$25.4M
3
Balyasny Asset Management
Balyasny Asset Management
Illinois
-$21.1M
4
T. Rowe Price Associates
T. Rowe Price Associates
Maryland
-$16.6M
5
State Street
State Street
Massachusetts
-$16.3M
Name Holding Trade Value Shares
Change 		Shares
Change %
AAM
126
Advisors Asset Management
Colorado
$1.36M +$364K +267 +37%
GAM
127
Gotham Asset Management
New York
$1.33M +$1.33M +979 New
TSS
128
Two Sigma Securities
New York
$1.32M +$969K +712 +276%
MCIM
129
Meadow Creek Investment Management
Georgia
$1.24M +$69.4K +51 +6%
Jane Street
130
Jane Street
New York
$1.23M +$608K +447 +98%
Macquarie Group
131
Macquarie Group
Australia
$1.2M – – –
Simplex Trading
132
Simplex Trading
Illinois
$1.16M -$691K -508 -37%
HMS
133
Hanseatic Management Services
New Mexico
$1.1M +$2.72K +2 +0.2%
HSBC Holdings
134
HSBC Holdings
United Kingdom
$1.08M +$251K +184 +30%
VIA
135
Vident Investment Advisory
Georgia
$1.07M -$240K -176 -18%
OAC
136
OMERS Administration Corp
Ontario, Canada
$1.06M +$1.06M +780 New
JCP
137
Jabre Capital Partners
Switzerland
$1.05M +$1.05M +772 New
CM
138
Crestline Management
Texas
$1.04M +$1.04M +761 New
CIP
139
Chartwell Investment Partners
Pennsylvania
$1.02M +$1.36K +1 +0.1%
UR
140
USCA RIA
Texas
$992K +$176K +129 +22%
WC
141
Woodstock Corp
Massachusetts
$955K – – –
CLCM
142
Crawford Lake Capital Management
New Jersey
$945K +$945K +695 New
Squarepoint
143
Squarepoint
New York
$924K -$238K -175 -20%
FCM
144
Flinton Capital Management
Pennsylvania
$903K +$50.4K +37 +6%
FRM
145
Fox Run Management
Connecticut
$903K +$903K +664 New
PAA
146
Peregrine Asset Advisers
Oregon
$881K +$881K +648 New
DCM
147
DAFNA Capital Management
California
$840K -$105K -77 -11%
CG
148
Cutler Group
California
$830K +$578K +425 +230%
RMCM
149
Reynders McVeigh Capital Management
Massachusetts
$792K – – –
SO
150
STRS Ohio
Ohio
$777K +$158K +116 +25%
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