BLUE

bluebird bio
BLUE

Overview Fund Activity
Delisted

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

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83 hedge funds and large institutions have $411M invested in bluebird bio in 2014 Q1 according to their latest regulatory filings, with 13 funds opening new positions, 39 increasing their positions, 17 reducing their positions, and 9 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
83
Holders Change
+2
Holders Change %
+2.47%
% of All Funds
2.4%
Holding in Top 10
1
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-50%
% of All Funds
0.03%
New
13
Increased
39
Reduced
17
Closed
9
Calls
$20K
Puts
$91K
Net Calls
-$71K
Net Calls Change
-$71K

Top Buyers

1
CCM
Camber Capital Management
Massachusetts
$16.1M
2
Capital Research Global Investors
Capital Research Global Investors
California
$67.3M
3
O
OrbiMed
New York
$6.57M
4
Millennium Management
Millennium Management
New York
$6.64M
5
QF
QVT Financial
New York
$4.48M

Top Sellers

1
TRV
Third Rock Ventures
Massachusetts
$55M
2
T. Rowe Price Associates
T. Rowe Price Associates
Maryland
$4.06M
3
Ameriprise
Ameriprise
Minnesota
$2K
4
WMSA
Weiss Multi-Strategy Advisers
New York
$0
5
PC
PointState Capital
New York
$0
Name Holding Trade Value Shares
Change 		Shares
Change %
CI
26
Cowen Inc
New York
$2.37M -$1.24M -4,206 -34%
SM
27
Sabby Management
Florida
$2.32M -$5.6K -19 -0.2%
State Street
28
State Street
Massachusetts
$2.05M +$337K +1,144 +20%
Northern Trust
29
Northern Trust
Illinois
$2.05M -$136K -462 -6%
BIT
30
BlackRock Institutional Trust
California
$1.92M +$355K +1,206 +23%
TCM
31
Tekla Capital Management
Massachusetts
$1.68M +$1.68M +5,709 New
Bank of America
32
Bank of America
North Carolina
$1.65M +$1.1M +3,745 +203%
EAM
33
Eventide Asset Management
Massachusetts
$1.48M +$894K +3,034 +153%
AC
34
Ascend Capital
California
$1.37M +$1.37M +4,636 New
GACM
35
Green Arrow Capital Management
New York
$1.36M +$682K +2,316 +100%
CS
36
Credit Suisse
Switzerland
$1.31M +$1.31M +4,442 New
SFM
37
Sphera Funds Management
Israel
$1.31M -$796K -2,702 -38%
TRSOTSOK
38
Teachers Retirement System of the State of Kentucky
Kentucky
$1.25M – – –
Principal Financial Group
39
Principal Financial Group
Iowa
$1.17M +$11.5K +39 +1%
FT
40
Fiduciary Trust
Massachusetts
$1.15M +$1.15M +3,897 New
SCM
41
Sigma Capital Management
Connecticut
$1.14M -$1.1M -3,739 -49%
Geode Capital Management
42
Geode Capital Management
Massachusetts
$1.04M +$19.7K +67 +2%
BG
43
BlackRock Group
United Kingdom
$832K – – –
TCIM
44
TIAA CREF Investment Management
New York
$730K +$189K +642 +35%
Bank of New York Mellon
45
Bank of New York Mellon
New York
$698K +$63K +214 +10%
ProShare Advisors
46
ProShare Advisors
Maryland
$571K +$322K +1,095 +130%
Morgan Stanley
47
Morgan Stanley
New York
$528K +$438K +1,488 +489%
Susquehanna International Group
48
Susquehanna International Group
Pennsylvania
$500K +$500K +1,695 New
PA
49
Perceptive Advisors
New York
$455K – – –
BIM
50
BlackRock Investment Management
Delaware
$452K +$23K +78 +5%
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