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

Top Sellers

1
O
1
OrbiMed
New York
$17.5M
2
Millennium Management
2
Millennium Management
New York
$0
3
PC
3
Passport Capital
California
$0
4
Franklin Resources
4
Franklin Resources
California
$57.1M
5
EA
5
Emerald Advisers
Pennsylvania
$10.2M
Name Holding Trade Value Shares
Change 		Shares
Change %
State Board of Administration of Florida Retirement System
101
State Board of Administration of Florida Retirement System
Florida
$1.42M – – –
Principal Financial Group
102
Principal Financial Group
Iowa
$1.39M +$75.9K +95 +6%
Jane Street
103
Jane Street
New York
$1.33M +$256K +320 +24%
AIG
104
American International Group
New York
$1.31M -$3.2K -4 -0.2%
TI
105
Turner Investments
Pennsylvania
$1.3M +$1.27M +1,584 +4,062%
CCM
106
Century Capital Management
Massachusetts
$1.27M -$104K -130 -8%
BF
107
BOK Financial
Oklahoma
$1.26M +$928K +1,162 +277%
PPA
108
Parametric Portfolio Associates
Washington
$1.26M -$273K -342 -18%
PA
109
Profund Advisors
Maryland
$1.21M -$56K -70 -4%
CG
110
Cutler Group
California
$1.12M +$103K +129 +10%
EP
111
Elkfork Partners
Oregon
$1.06M +$1.06M +1,331 New
MAM
112
Martingale Asset Management
Massachusetts
$1.04M -$9.6K -12 -0.9%
VOYA Investment Management
113
VOYA Investment Management
Georgia
$952K -$12.8K -16 -1%
CIP
114
Chartwell Investment Partners
Pennsylvania
$940K -$1.63M -2,046 -63%
SGH
115
Sivik Global Healthcare
Connecticut
$926K -$165K -206 -15%
GHCM
116
Glen Harbor Capital Management
California
$876K +$876K +1,096 New
SG Americas Securities
117
SG Americas Securities
New York
$871K -$142K -178 -14%
Legal & General Group
118
Legal & General Group
United Kingdom
$839K +$342K +427 +69%
Schroder Investment Management Group
119
Schroder Investment Management Group
United Kingdom
$790K -$245K -306 -24%
American Century Companies
120
American Century Companies
Missouri
$746K -$385K -481 -34%
KBC Group
121
KBC Group
Belgium
$738K – – –
HMS
122
Hanseatic Management Services
New Mexico
$719K +$210K +263 +41%
Macquarie Group
123
Macquarie Group
Australia
$703K +$703K +880 New
MCIM
124
Meadow Creek Investment Management
Georgia
$688K +$688K +861 New
VIA
125
Vident Investment Advisory
Georgia
$641K -$378K -473 -37%
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5
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