BLUE

bluebird bio
BLUE

Overview Fund Activity
Delisted

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

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200 hedge funds and large institutions have $3.01B invested in bluebird bio in 2016 Q3 according to their latest regulatory filings, with 45 funds opening new positions, 64 increasing their positions, 60 reducing their positions, and 21 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
200
Holders Change
+23
Holders Change %
+12.99%
% of All Funds
5.34%
Holding in Top 10
1
Holding in Top 10 Change
-3
Holding in Top 10 Change %
-75%
% of All Funds
0.03%
New
45
Increased
64
Reduced
60
Closed
21
Calls
$51.9M
Puts
$58M
Net Calls
-$6.06M
Net Calls Change
-$3.65M

Top Buyers

1
T. Rowe Price Associates
1
T. Rowe Price Associates
Maryland
$228M
2
Victory Capital Management
2
Victory Capital Management
Texas
$44.4M
3
Millennium Management
3
Millennium Management
New York
$44.3M
4
Balyasny Asset Management
4
Balyasny Asset Management
Illinois
$37.2M
5
PC
5
Passport Capital
California
$19.6M

Top Sellers

1
O
1
OppenheimerFunds
New York
$53.4M
2
Capital Research Global Investors
2
Capital Research Global Investors
California
$271M
3
RI
3
RTW Investments
New York
$5.95M
4
TAM
4
Tiverton Asset Management
Delaware
$1.87M
5
GPP
5
Great Point Partners
Connecticut
$0
Name Holding Trade Value Shares
Change 		Shares
Change %
EAM
51
EverPoint Asset Management
Connecticut
$6.78M -$5.08M -5,790 -43%
JPMorgan Chase & Co
52
JPMorgan Chase & Co
New York
$6.61M +$838K +954 +14%
RI
53
RTW Investments
New York
$5.95M -$35.5M -40,475 -86%
California Public Employees Retirement System
54
California Public Employees Retirement System
California
$5.46M -$380K -433 -7%
California State Teachers Retirement System (CalSTRS)
55
California State Teachers Retirement System (CalSTRS)
California
$5.32M +$54.4K +62 +1%
BG
56
BlackRock Group
United Kingdom
$5.28M +$3.79M +4,313 +254%
NFA
57
Nationwide Fund Advisors
Ohio
$4.71M -$144K -164 -3%
Dimensional Fund Advisors
58
Dimensional Fund Advisors
Texas
$4.59M -$206K -235 -4%
FLAM
59
First Light Asset Management
Minnesota
$4.58M +$33.4K +38 +0.7%
GTC
60
Ghost Tree Capital
New York
$4.07M -$7.46M -8,492 -65%
CC
61
Casdin Capital
New York
$4.07M -$4.24M -4,825 -51%
Swiss National Bank
62
Swiss National Bank
Switzerland
$4.05M +$7.02K +8 +0.2%
TD Asset Management
63
TD Asset Management
Ontario, Canada
$4.02M +$1.22M +1,393 +44%
QF
64
QVT Financial
New York
$4M – – –
AllianceBernstein
65
AllianceBernstein
Tennessee
$3.81M -$47.4K -54 -1%
Zurich Cantonal Bank
66
Zurich Cantonal Bank
Switzerland
$3.48M +$108K +123 +3%
GC
67
Guggenheim Capital
Illinois
$3.45M -$1.69M -1,922 -33%
Morgan Stanley
68
Morgan Stanley
New York
$3.45M +$1.54M +1,748 +80%
NIP
69
Nicholas Investment Partners
California
$3.38M +$3.38M +3,849 New
LCM
70
Laurion Capital Management
New York
$3.36M +$3.36M +3,821 New
TCM
71
Tekla Capital Management
Massachusetts
$3.35M – – –
RhumbLine Advisers
72
RhumbLine Advisers
Massachusetts
$3.21M +$136K +155 +4%
AA
73
ALPS Advisors
Colorado
$3.21M -$306K -349 -9%
QIM
74
Quantitative Investment Management
Virginia
$3.17M +$3.17M +3,605 New
VanEck Associates
75
VanEck Associates
New York
$2.92M -$416K -474 -12%
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