BLUE

bluebird bio
BLUE

Overview Fund Activity
Delisted

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

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195 hedge funds and large institutions have $2.53B invested in bluebird bio in 2015 Q4 according to their latest regulatory filings, with 46 funds opening new positions, 86 increasing their positions, 49 reducing their positions, and 41 closing their positions.

Holders
195
Holders Change
+3
Holders Change %
+1.56%
% of All Funds
5.12%
Holding in Top 10
3
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-25%
% of All Funds
0.08%
New
46
Increased
86
Reduced
49
Closed
41
Calls
$39.2M
Puts
$52M
Net Calls
-$12.8M
Net Calls Change
-$8.29M

Top Buyers

1
Capital World Investors
1
Capital World Investors
California
$133M
2
PHS
2
PFM Health Sciences
California
$42.9M
3
Jennison Associates
3
Jennison Associates
New York
$55.5M
4
State Street
4
State Street
Massachusetts
$61.3M
5
Ameriprise
5
Ameriprise
Minnesota
$32.3M

Top Sellers

1
Viking Global Investors
1
Viking Global Investors
Connecticut
$0
2
DM
2
Deerfield Management
New York
$0
3
First Trust Advisors
3
First Trust Advisors
Illinois
$0
4
Point72 Asset Management
4
Point72 Asset Management
Connecticut
$0
5
Lord, Abbett & Co
5
Lord, Abbett & Co
New Jersey
$0
Name Market Value Shares Shares
Change 		Shares
Change %
Federated Hermes
126
Federated Hermes
Pennsylvania
$514K 8,000 – –
AIG
127
American International Group
New York
$498K 7,758 +4,969 +178%
Simplex Trading
128
Simplex Trading
Illinois
$497K 7,752 +966 +14%
Public Employees Retirement Association of Colorado
129
Public Employees Retirement Association of Colorado
Colorado
$446K 6,943 +10 +0.1%
URS
130
Utah Retirement Systems
Utah
$411K 6,400 – –
QT
131
Quantbot Technologies
New York
$405K 6,310 +3,374 +115%
EEG
132
E.E. Geduld
$405K 6,300 +6,300 New
DCM
133
DAFNA Capital Management
California
$385K 6,000 – –
PAM
134
Paradigm Asset Management
New York
$382K 5,950 -17,950 -75%
OAC
135
OMERS Administration Corp
Ontario, Canada
$379K 5,900 +5,900 New
KBC Group
136
KBC Group
Belgium
$366K 5,692 +1,876 +49%
RFC
137
Russell Frank Company
Washington
$353K 5,443 -1,481 -21%
RI
138
RTW Investments
New York
$340K 5,300 -146,294 -97%
CWG
139
C WorldWide Group
Denmark
$321K 5,000 +5,000 New
B
140
Bailard
California
$321K 5,000 +5,000 New
WS
141
Wedbush Securities
California
$305K 4,750 +300 +7%
QC
142
QCM Cayman
Texas
$298K 4,633 +4,633 New
HSBC Holdings
143
HSBC Holdings
United Kingdom
$281K 4,376 +1,867 +74%
NMIMC
144
Northwestern Mutual Investment Management Company
Wisconsin
$271K 4,222 +362 +9%
American Century Companies
145
American Century Companies
Missouri
$265K 4,125 -131,368 -97%
FBC
146
Fairfield, Bush & Co
Connecticut
$257K 4,000 +4,000 New
Barclays
147
Barclays
United Kingdom
$255K 3,973 -6,859 -63%
AB
148
Amalgamated Bank
New York
$250K 3,898 -282 -7%
JT
149
Jump Trading
Illinois
$240K 3,742 +3,742 New
WA
150
Winfield Associates
Ohio
$224K 3,485 -820 -19%
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