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 %
State Board of Administration of Florida Retirement System
101
State Board of Administration of Florida Retirement System
Florida
$2.41M – – –
First Trust Advisors
102
First Trust Advisors
Illinois
$2.36M +$2.36M +1,736 New
PPA
103
Parametric Portfolio Associates
Washington
$2.34M -$53.1K -39 -2%
BG
104
Bellevue Group
Switzerland
$2.32M -$725K -533 -24%
Allianz Asset Management
105
Allianz Asset Management
Germany
$2.3M +$74K +53 +3%
BF
106
BOK Financial
Oklahoma
$2.23M +$16.3K +12 +0.7%
AR
107
Advisory Research
Illinois
$2.22M -$729K -536 -25%
Capital Fund Management (CFM)
108
Capital Fund Management (CFM)
France
$2.11M +$1.49M +1,098 +243%
PA
109
Perceptive Advisors
New York
$2.1M +$1.61M +1,185 +330%
EP
110
Elkfork Partners
Oregon
$1.92M +$107K +79 +6%
CCMH
111
Cornerstone Capital Management Holdings
New York
$1.89M +$15K +11 +0.8%
Federated Hermes
112
Federated Hermes
Pennsylvania
$1.88M -$948K -697 -34%
Daiwa Securities Group
113
Daiwa Securities Group
Japan
$1.78M +$1.78M +1,304 New
DCM
114
Driehaus Capital Management
Illinois
$1.76M -$3.36M -2,472 -66%
PA
115
Profund Advisors
Maryland
$1.75M -$144K -106 -8%
SCM
116
Stevens Capital Management
Pennsylvania
$1.73M +$1.73M +1,274 New
CCM
117
Century Capital Management
Massachusetts
$1.7M -$81.7K -60 -5%
KBC Group
118
KBC Group
Belgium
$1.68M +$419K +308 +33%
Legal & General Group
119
Legal & General Group
United Kingdom
$1.6M +$130K +95 +9%
MAM
120
Martingale Asset Management
Massachusetts
$1.6M -$189K -139 -11%
GHCM
121
Glen Harbor Capital Management
California
$1.58M +$88.5K +65 +6%
SGH
122
Sivik Global Healthcare
Connecticut
$1.58M +$116K +85 +8%
WBC
123
Westpac Banking Corp
Australia
$1.52M -$861K -633 -36%
TCM
124
Tekla Capital Management
Massachusetts
$1.39M -$3.79M -2,784 -73%
Barclays
125
Barclays
United Kingdom
$1.36M +$596K +438 +78%
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