BLUE

bluebird bio
BLUE

Overview Fund Activity
Delisted

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

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241 hedge funds and large institutions have $5.17B invested in bluebird bio in 2017 Q2 according to their latest regulatory filings, with 50 funds opening new positions, 95 increasing their positions, 66 reducing their positions, and 19 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
241
Holders Change
+31
Holders Change %
+14.76%
% of All Funds
6.02%
Holding in Top 10
4
Holding in Top 10 Change
+2
Holding in Top 10 Change %
+100%
% of All Funds
0.1%
New
50
Increased
95
Reduced
66
Closed
19
Calls
$109M
Puts
$49M
Net Calls
+$59.7M
Net Calls Change
+$34.8M

Top Buyers

1
Wellington Management Group
Wellington Management Group
Massachusetts
+$63.1M
2
Fidelity Investments
Fidelity Investments
Massachusetts
+$61.7M
3
Capital Research Global Investors
Capital Research Global Investors
California
+$51.8M
4
Vanguard Group
Vanguard Group
Pennsylvania
+$36.1M
5
CAM
Cormorant Asset Management
Massachusetts
+$28.9M

Top Sellers

1
Franklin Resources
Franklin Resources
California
-$50.4M
2
Alyeska Investment Group
Alyeska Investment Group
Illinois
-$25.4M
3
Balyasny Asset Management
Balyasny Asset Management
Illinois
-$21.1M
4
T. Rowe Price Associates
T. Rowe Price Associates
Maryland
-$16.6M
5
State Street
State Street
Massachusetts
-$16.3M
Name Holding Trade Value Shares
Change 		Shares
Change %
CS
51
Credit Suisse
Switzerland
$9.48M -$3.92M -2,884 -29%
California Public Employees Retirement System
52
California Public Employees Retirement System
California
$8.91M +$189K +139 +2%
Bank of America
53
Bank of America
North Carolina
$8.87M +$1.21M +891 +16%
AllianceBernstein
54
AllianceBernstein
Tennessee
$8.83M -$186K -137 -2%
California State Teachers Retirement System (CalSTRS)
55
California State Teachers Retirement System (CalSTRS)
California
$8.36M -$78.9K -58 -0.9%
Swiss National Bank
56
Swiss National Bank
Switzerland
$7.88M +$861K +633 +12%
CCI
57
Columbus Circle Investors
$7.7M -$10.9M -8,041 -59%
FAM
58
Fred Alger Management
New York
$7.6M +$218K +160 +3%
FCM
59
Frontier Capital Management
Massachusetts
$7.41M +$1.4M +1,031 +23%
CC
60
Casdin Capital
New York
$6.83M +$4.15M +3,049 +155%
NFA
61
Nationwide Fund Advisors
Ohio
$6.57M +$445K +327 +7%
HI
62
HBK Investments
Texas
$6.41M +$6.41M +4,709 New
Citadel Advisors
63
Citadel Advisors
Florida
$6.33M +$5.65M +4,150 +833%
Axa
64
Axa
France
$6.04M -$6.98M -5,127 -54%
JPMorgan Chase & Co
65
JPMorgan Chase & Co
New York
$5.81M -$1.57M -1,151 -21%
RhumbLine Advisers
66
RhumbLine Advisers
Massachusetts
$5.58M -$73.5K -54 -1%
NIP
67
Nicholas Investment Partners
California
$5.27M +$1.4M +1,027 +36%
OA
68
Omega Advisors
New York
$5.25M +$5.25M +3,860 New
Janus Henderson Group
69
Janus Henderson Group
United Kingdom
$5.25M +$5.25M +3,860 New
Principal Financial Group
70
Principal Financial Group
Iowa
$4.78M +$2.43M +1,782 +103%
TD Asset Management
71
TD Asset Management
Ontario, Canada
$4.76M -$788K -579 -14%
VanEck Associates
72
VanEck Associates
New York
$4.72M -$977K -718 -17%
Russell Investments Group
73
Russell Investments Group
United Kingdom
$4.08M +$532K +391 +15%
TWMP
74
Taylor Wealth Management Partners
Massachusetts
$4.03M -$59.9K -44 -1%
AA
75
ALPS Advisors
Colorado
$3.88M +$191K +140 +5%
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