BLUE

bluebird bio
BLUE

Overview Fund Activity
Delisted

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

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192 hedge funds and large institutions have $3.12B invested in bluebird bio in 2015 Q3 according to their latest regulatory filings, with 21 funds opening new positions, 93 increasing their positions, 59 reducing their positions, and 63 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
192
Holders Change
-43
Holders Change %
-18.3%
% of All Funds
5.37%
Holding in Top 10
4
Holding in Top 10 Change
-4
Holding in Top 10 Change %
-50%
% of All Funds
0.11%
New
21
Increased
93
Reduced
59
Closed
63
Calls
$59.5M
Puts
$64M
Net Calls
-$4.52M
Net Calls Change
-$9.39M

Top Buyers

1
Baillie Gifford & Co
1
Baillie Gifford & Co
United Kingdom
$409M
2
Viking Global Investors
2
Viking Global Investors
Connecticut
$52.7M
3
O
3
OppenheimerFunds
New York
$96.5M
4
First Trust Advisors
4
First Trust Advisors
Illinois
$28.2M
5
O
5
OrbiMed
New York
$102M

Top Sellers

1
TCP
1
Tourbillon Capital Partners
New York
$0
2
PC
2
Passport Capital
California
$0
3
Lord, Abbett & Co
3
Lord, Abbett & Co
New Jersey
$17.1M
4
Two Sigma Investments
4
Two Sigma Investments
New York
$0
5
KCM
5
Kingdon Capital Management
New York
$0
Name Holding Trade Value Shares
Change 		Shares
Change %
FAM
51
Fred Alger Management
New York
$7.87M -$5.68M -5,128 -42%
Charles Schwab
52
Charles Schwab
California
$7.52M +$3.56M +3,211 +90%
GC
53
Guggenheim Capital
Illinois
$7.01M +$272K +245 +4%
Citadel Advisors
54
Citadel Advisors
Florida
$6.35M +$5.69M +5,136 +865%
GL
55
GLG LLC
New York
$6.33M -$3.83M -3,457 -38%
Dimensional Fund Advisors
56
Dimensional Fund Advisors
Texas
$6.02M +$2.16M +1,948 +56%
EA
57
Emerald Advisers
Pennsylvania
$5.97M +$752K +679 +14%
CS
58
Credit Suisse
Switzerland
$5.86M -$7.55M -6,810 -56%
California State Teachers Retirement System (CalSTRS)
59
California State Teachers Retirement System (CalSTRS)
California
$5.58M +$453K +409 +9%
JPMorgan Chase & Co
60
JPMorgan Chase & Co
New York
$5.56M -$4.99M -4,504 -47%
SIM
61
Spark Investment Management
New York
$5.24M +$2.16M +1,953 +70%
VanEck Associates
62
VanEck Associates
New York
$5.2M +$5.2M +4,691 New
BNP Paribas Asset Management
63
BNP Paribas Asset Management
France
$5.19M -$805K -726 -13%
GCP
64
GSA Capital Partners
United Kingdom
$5M +$2.1M +1,893 +72%
AQR Capital Management
65
AQR Capital Management
Connecticut
$4.87M +$235K +212 +5%
WJA
66
Williams Jones & Associates
New York
$4.59M -$818K -738 -15%
EMFAT
67
Emerald Mutual Fund Advisers Trust
Pennsylvania
$4.46M +$1.22M +1,103 +38%
Adage Capital Partners
68
Adage Capital Partners
Massachusetts
$3.96M +$51K +46 +1%
AP
69
AlpInvest Partners
Netherlands
$3.96M +$1.2M +1,080 +43%
RSCM
70
Rock Springs Capital Management
Maryland
$3.85M – – –
Alyeska Investment Group
71
Alyeska Investment Group
Illinois
$3.85M +$3.85M +3,474 New
ACM
72
Apex Capital Management
Ohio
$3.79M +$3.79M +3,424 New
CS
73
Candriam SCA
Luxembourg
$3.78M -$924K -834 -20%
TD Asset Management
74
TD Asset Management
Ontario, Canada
$3.78M +$171K +154 +5%
Swiss National Bank
75
Swiss National Bank
Switzerland
$3.63M +$462K +417 +15%
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