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 %
TRSOTSOK
101
Teachers Retirement System of the State of Kentucky
Kentucky
$3.1M +$278K +169 +10%
Retirement Systems of Alabama
102
Retirement Systems of Alabama
Alabama
$3.07M – – –
AIMCA
103
Alberta Investment Management Corp (AIMCo)
Alberta, Canada
$3.04M +$3.04M +1,848 New
Jane Street
104
Jane Street
New York
$3.01M +$362K +220 +14%
VanEck Associates
105
VanEck Associates
New York
$2.81M -$1.83M -1,110 -39%
BNP Paribas Financial Markets
106
BNP Paribas Financial Markets
France
$2.52M +$898K +545 +55%
Ohio Public Employees Retirement System (OPERS)
107
Ohio Public Employees Retirement System (OPERS)
Ohio
$2.43M -$132K -80 -5%
FLAM
108
First Light Asset Management
Minnesota
$2.4M +$13.2K +8 +0.6%
KBC Group
109
KBC Group
Belgium
$2.38M +$142K +86 +6%
VOYA Investment Management
110
VOYA Investment Management
Georgia
$2.36M -$977K -593 -29%
BG
111
Bellevue Group
Switzerland
$2.32M -$623K -378 -21%
Balyasny Asset Management
112
Balyasny Asset Management
Illinois
$2.28M -$5.96M -3,616 -72%
ProShare Advisors
113
ProShare Advisors
Maryland
$2.22M -$438K -266 -17%
PAA
114
Peregrine Asset Advisers
Oregon
$2.22M – – –
Russell Investments Group
115
Russell Investments Group
United Kingdom
$2.21M -$600K -364 -21%
IBT
116
International Biotechnology Trust
United Kingdom
$2.16M – – –
PI
117
Putnam Investments
Massachusetts
$2.13M +$486K +295 +30%
WM
118
WS Management
Florida
$2.05M -$242K -147 -11%
TMAM
119
Tokio Marine Asset Management
Japan
$2.04M – – –
LP
120
LMR Partners
United Kingdom
$2.01M -$534K -324 -21%
LCM
121
Laurion Capital Management
New York
$1.96M +$1.96M +1,187 New
HAM
122
HHR Asset Management
New Jersey
$1.93M +$1.93M +1,173 New
CI
123
Cowen Inc
New York
$1.91M +$890K +540 +87%
ISL
124
Ingalls & Snyder LLC
New York
$1.89M +$1.89M +1,145 New
CRC
125
Curi RMB Capital
Illinois
$1.85M -$59.3K -36 -3%
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