BLUE

bluebird bio
BLUE

Overview Fund Activity
Delisted

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

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169 hedge funds and large institutions have $2.74B invested in bluebird bio in 2014 Q4 according to their latest regulatory filings, with 59 funds opening new positions, 53 increasing their positions, 42 reducing their positions, and 11 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
169
Holders Change
+46
Holders Change %
+37.4%
% of All Funds
4.51%
Holding in Top 10
7
Holding in Top 10 Change
+4
Holding in Top 10 Change %
+133.33%
% of All Funds
0.19%
New
59
Increased
53
Reduced
42
Closed
11
Calls
$43.4M
Puts
$14.5M
Net Calls
+$28.8M
Net Calls Change
+$16.1M

Top Buyers

1
Capital World Investors
Capital World Investors
California
$75M
2
O
OppenheimerFunds
New York
$69M
3
FCM
Frontier Capital Management
Massachusetts
$43.8M
4
T. Rowe Price Associates
T. Rowe Price Associates
Maryland
$139M
5
Fidelity Investments
Fidelity Investments
Massachusetts
$433M

Top Sellers

1
Point72 Asset Management
Point72 Asset Management
Connecticut
$4.08M
2
DM
Deerfield Management
New York
$78M
3
RCM
RA Capital Management
Massachusetts
$46.4M
4
QF
QVT Financial
New York
$14.9M
5
State Street
State Street
Massachusetts
$49.9M
Name Holding Trade Value Shares
Change 		Shares
Change %
WC
101
Woodstock Corp
Massachusetts
$1.8M – – –
ACM
102
Atika Capital Management
New York
$1.79M +$1.79M +1,505 New
American Century Companies
103
American Century Companies
Missouri
$1.72M +$1.72M +1,443 New
RhumbLine Advisers
104
RhumbLine Advisers
Massachusetts
$1.68M +$133K +112 +9%
MLICM
105
Metropolitan Life Insurance Company (MetLife)
New York
$1.58M – – –
TAM
106
Tocqueville Asset Management
New York
$1.47M +$321K +270 +28%
FLAM
107
First Light Asset Management
Minnesota
$1.47M +$1.47M +1,236 New
AIG
108
American International Group
New York
$1.41M +$116K +98 +9%
WJA
109
Williams Jones & Associates
New York
$1.38M +$1.38M +1,161 New
Two Sigma Advisers
110
Two Sigma Advisers
New York
$1.37M +$1.37M +1,150 New
SO
111
STRS Ohio
Ohio
$1.31M -$715K -602 -35%
Two Sigma Investments
112
Two Sigma Investments
New York
$1.3M +$1.3M +1,096 New
Group One Trading
113
Group One Trading
Illinois
$1.22M +$1.08M +908 +769%
State Board of Administration of Florida Retirement System
114
State Board of Administration of Florida Retirement System
Florida
$1.2M +$11.9K +10 +1%
LCG
115
Lisanti Capital Growth
New York
$1.16M -$2.01M -1,688 -63%
DCM
116
DAFNA Capital Management
California
$1.15M -$1.15M -965 -50%
Citigroup
117
Citigroup
New York
$1.01M +$944K +794 +1,369%
VOYA Investment Management
118
VOYA Investment Management
Georgia
$996K – – –
PIM
119
Partner Investment Management
California
$950K +$950K +800 New
New York State Common Retirement Fund
120
New York State Common Retirement Fund
New York
$878K +$878K +739 New
Simplex Trading
121
Simplex Trading
Illinois
$840K +$840K +707 New
Tudor Investment Corp
122
Tudor Investment Corp
Connecticut
$801K +$801K +674 New
EEG
123
E.E. Geduld
$743K -$263K -221 -26%
GL
124
GLG LLC
New York
$727K +$727K +612 New
NEPWA
125
New England Private Wealth Advisors
Massachusetts
$668K -$834K -702 -56%
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5
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