BLUE

bluebird bio
BLUE

Overview Fund Activity
Delisted

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

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199 hedge funds and large institutions have $2.88B invested in bluebird bio in 2016 Q4 according to their latest regulatory filings, with 31 funds opening new positions, 90 increasing their positions, 58 reducing their positions, and 30 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
199
Holders Change
-1
Holders Change %
-0.5%
% of All Funds
4.98%
Holding in Top 10
3
Holding in Top 10 Change
+2
Holding in Top 10 Change %
+200%
% of All Funds
0.08%
New
31
Increased
90
Reduced
58
Closed
30
Calls
$50.2M
Puts
$44M
Net Calls
+$6.24M
Net Calls Change
+$12.3M

Top Buyers

1
Wellington Management Group
Wellington Management Group
Massachusetts
$188M
2
Capital Research Global Investors
Capital Research Global Investors
California
$291M
3
Fidelity Investments
Fidelity Investments
Massachusetts
$376M
4
Vanguard Group
Vanguard Group
Pennsylvania
$190M
5
BFA
BlackRock Fund Advisors
California
$112M

Top Sellers

1
O
OrbiMed
New York
$17.5M
2
Millennium Management
Millennium Management
New York
$0
3
PC
Passport Capital
California
$0
4
Franklin Resources
Franklin Resources
California
$57.1M
5
EA
Emerald Advisers
Pennsylvania
$10.2M
Name Holding Trade Value Shares
Change 		Shares
Change %
Neuberger Berman Group
126
Neuberger Berman Group
New York
$636K -$154K -193 -20%
WC
127
Woodstock Corp
Massachusetts
$561K -$648K -811 -54%
DCM
128
DAFNA Capital Management
California
$555K +$185K +232 +50%
CCP
129
Clough Capital Partners
Massachusetts
$555K +$555K +695 New
CCMH
130
Cornerstone Capital Management Holdings
New York
$517K +$36.7K +46 +8%
FCM
131
Flinton Capital Management
Pennsylvania
$501K +$501K +626 New
Group One Trading
132
Group One Trading
Illinois
$490K -$476K -595 -49%
CGL
133
Clarius Group LLC
Washington
$486K +$48.8K +61 +11%
HSBC Holdings
134
HSBC Holdings
United Kingdom
$475K +$475K +594 New
EEG
135
E.E. Geduld
$450K -$154K -193 -25%
DCM
136
Dupont Capital Management
Delaware
$449K +$449K +562 New
Prudential Financial
137
Prudential Financial
New Jersey
$446K +$31.2K +39 +8%
GAMA
138
Graticule Asia Macro Advisors
New York
$444K +$444K +556 New
Public Employees Retirement Association of Colorado
139
Public Employees Retirement Association of Colorado
Colorado
$439K – – –
BlackRock
140
BlackRock
New York
$436K -$1.06M -1,319 -71%
LCM
141
Laurion Capital Management
New York
$358K -$2.7M -3,373 -88%
KAM
142
Kazazian Asset Management
Florida
$346K +$346K +432 New
NPC
143
National Planning Corporation
California
$337K +$337K +339 New
RMCM
144
Reynders McVeigh Capital Management
Massachusetts
$331K +$331K +415 New
AB
145
Amalgamated Bank
New York
$312K +$65.4K +82 +27%
WS
146
Wedbush Securities
California
$305K +$8.78K +11 +3%
GI
147
Gradient Investments
Minnesota
$304K +$800 +1 +0.3%
Barclays
148
Barclays
United Kingdom
$303K -$4.78K -6 -2%
SO
149
STRS Ohio
Ohio
$259K – – –
AG
150
Aperio Group
California
$239K +$19.1K +24 +9%
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