BLUE

bluebird bio
BLUE

Overview Fund Activity
Delisted

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

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307 hedge funds and large institutions have $8.41B invested in bluebird bio in 2018 Q2 according to their latest regulatory filings, with 52 funds opening new positions, 121 increasing their positions, 88 reducing their positions, and 47 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
307
Holders Change
+4
Holders Change %
+1.32%
% of All Funds
7.04%
Holding in Top 10
4
Holding in Top 10 Change
+2
Holding in Top 10 Change %
+100%
% of All Funds
0.09%
New
52
Increased
121
Reduced
88
Closed
47
Calls
$237M
Puts
$142M
Net Calls
+$95.2M
Net Calls Change
+$77.8M

Top Buyers

1
Wellington Management Group
Wellington Management Group
Massachusetts
+$74.1M
2
Millennium Management
Millennium Management
New York
+$70.1M
3
Capital World Investors
Capital World Investors
California
+$61.7M
4
Susquehanna International Group
Susquehanna International Group
Pennsylvania
+$46.1M
5
Citigroup
Citigroup
New York
+$39.3M

Top Sellers

1
BlackRock
BlackRock
New York
-$178M
2
Northern Trust
Northern Trust
Illinois
-$55.1M
3
Lord, Abbett & Co
Lord, Abbett & Co
New Jersey
-$49.3M
4
State Street
State Street
Massachusetts
-$45.2M
5
Two Sigma Advisers
Two Sigma Advisers
New York
-$42.9M
Name Holding Trade Value Shares
Change 		Shares
Change %
TRSOTSOK
126
Teachers Retirement System of the State of Kentucky
Kentucky
$2.69M +$1.16M +571 +76%
SGA
127
Sector Gamma AS
Norway
$2.67M +$2.67M +1,312 New
CM
128
Crestline Management
Texas
$2.54M +$2.54M +1,251 New
TMAM
129
Tokio Marine Asset Management
Japan
$2.48M +$864K +425 +53%
CII
130
Capital International Inc
California
$2.48M +$425K +209 +21%
PA
131
Profund Advisors
Maryland
$2.45M -$356K -175 -13%
Daiwa Securities Group
132
Daiwa Securities Group
Japan
$2.44M +$677K +333 +38%
TAM
133
Tiverton Asset Management
Delaware
$2.43M -$340K -167 -12%
KCM
134
Kennedy Capital Management
Missouri
$2.31M +$106K +52 +5%
EVM
135
Eaton Vance Management
Massachusetts
$2.27M +$2.27M +1,114 New
Wolverine Trading
136
Wolverine Trading
Illinois
$2.24M – – –
JG
137
Jefferies Group
New York
$2.23M +$2.04M +1,003 +1,078%
MSL
138
Mackay Shields LLC
New York
$2.22M -$77.3K -38 -3%
CI
139
Capital International
California
$2.21M +$1.05M +517 +91%
AAM
140
Advisors Asset Management
Colorado
$2.17M -$614K -302 -22%
CRC
141
Curi RMB Capital
Illinois
$2.13M -$903K -444 -30%
VIA
142
Vident Investment Advisory
Georgia
$2.12M +$571K +281 +37%
SSA
143
Schonfeld Strategic Advisors
New York
$2.04M +$2.04M +1,004 New
BG
144
Bellevue Group
Switzerland
$2.03M -$63K -31 -3%
TWMP
145
Taylor Wealth Management Partners
Massachusetts
$2M -$1.19M -586 -37%
Treasurer of the State of North Carolina
146
Treasurer of the State of North Carolina
North Carolina
$2M +$2M +981 New
KBC Group
147
KBC Group
Belgium
$1.77M +$258K +127 +17%
Twin Tree Management
148
Twin Tree Management
Texas
$1.74M +$594K +292 +52%
AB
149
Amalgamated Bank
New York
$1.73M +$712K +350 +70%
BNP Paribas Financial Markets
150
BNP Paribas Financial Markets
France
$1.7M -$1.64M -807 -49%
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