BLUE

bluebird bio
BLUE

Overview Fund Activity
Delisted

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

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273 hedge funds and large institutions have $7.92B invested in bluebird bio in 2019 Q2 according to their latest regulatory filings, with 31 funds opening new positions, 106 increasing their positions, 81 reducing their positions, and 42 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
273
Holders Change
-15
Holders Change %
-5.21%
% of All Funds
5.94%
Holding in Top 10
1
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.02%
New
31
Increased
106
Reduced
81
Closed
42
Calls
$100M
Puts
$131M
Net Calls
-$31M
Net Calls Change
-$84.9M

Top Buyers

1
Sands Capital Management
Sands Capital Management
Virginia
+$141M
2
Invesco
Invesco
Georgia
+$121M
3
Nuveen Asset Management
Nuveen Asset Management
Illinois
+$53.1M
4
Capital World Investors
Capital World Investors
California
+$48.9M
5
EVM
Eaton Vance Management
Massachusetts
+$26.9M

Top Sellers

1
Vanguard Group
Vanguard Group
Pennsylvania
-$138M
2
MWNA
Marshall Wace North America
New York
-$74.9M
3
Bank of America
Bank of America
North Carolina
-$35.4M
4
EAM
Eventide Asset Management
Massachusetts
-$32.9M
5
Baillie Gifford & Co
Baillie Gifford & Co
United Kingdom
-$32.5M
Name Holding Trade Value Shares
Change 		Shares
Change %
Rafferty Asset Management
76
Rafferty Asset Management
New York
$5.35M +$801K +486 +18%
USAA
77
United Services Automobile Association
Texas
$5.28M +$37.9K +23 +0.7%
PPA
78
Parametric Portfolio Associates
Washington
$5.23M +$232K +141 +5%
UBS Group
79
UBS Group
Switzerland
$5.2M -$175K -106 -3%
BBA
80
Baker Bros. Advisors
New York
$5.09M – – –
GGHC
81
Gilder Gagnon Howe & Co
New York
$5.02M +$72.5K +44 +1%
TD Asset Management
82
TD Asset Management
Ontario, Canada
$4.92M -$562K -341 -10%
CII
83
Capital International Inc
California
$4.66M +$1.6M +973 +52%
EAM
84
Eventide Asset Management
Massachusetts
$4.58M -$32.9M -19,967 -88%
EAM
85
Erste Asset Management
Austria
$4.4M -$435K -271 -9%
Bank of Montreal
86
Bank of Montreal
Ontario, Canada
$4.33M -$1.03M -626 -19%
Group One Trading
87
Group One Trading
Illinois
$4.24M +$3.59M +2,179 +554%
GC
88
Guggenheim Capital
Illinois
$4.2M +$19.8K +12 +0.5%
CIS
89
Capital International Sarl
California
$3.95M -$254K -154 -6%
MGI
90
MayTech Global Investments
New York
$3.95M +$109K +66 +3%
Two Sigma Investments
91
Two Sigma Investments
New York
$3.84M +$3.84M +2,330 New
Legal & General Group
92
Legal & General Group
United Kingdom
$3.78M +$74.1K +45 +2%
Royal Bank of Canada
93
Royal Bank of Canada
Ontario, Canada
$3.54M +$379K +230 +12%
FAM
94
Fred Alger Management
New York
$3.5M -$2.66M -1,613 -43%
State of Wisconsin Investment Board
95
State of Wisconsin Investment Board
Wisconsin
$3.49M +$880K +534 +34%
Treasurer of the State of North Carolina
96
Treasurer of the State of North Carolina
North Carolina
$3.45M +$394K +239 +13%
Citadel Advisors
97
Citadel Advisors
Florida
$3.27M +$2.66M +1,617 +443%
DCM
98
DAFNA Capital Management
California
$3.24M -$189K -115 -6%
SGH
99
Sivik Global Healthcare
Connecticut
$3.18M +$928K +563 +41%
BJL
100
Brighton Jones LLC
Washington
$3.14M +$39.5K +24 +1%
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