BLUE

bluebird bio
BLUE

Overview Fund Activity
Delisted

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

Back to rankings

176 hedge funds and large institutions have $309M invested in bluebird bio in 2023 Q1 according to their latest regulatory filings, with 24 funds opening new positions, 70 increasing their positions, 41 reducing their positions, and 31 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
176
Holders Change
-7
Holders Change %
-3.83%
% of All Funds
2.82%
Holding in Top 10
1
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.02%
New
24
Increased
70
Reduced
41
Closed
31
Calls
$3.48M
Puts
$3.97M
Net Calls
-$489K
Net Calls Change
-$4.06M

Top Buyers

1
TCM
1
Tang Capital Management
California
$31.4M
2
State Street
2
State Street
Massachusetts
$56.5M
3
PHS
3
PFM Health Sciences
California
$14.6M
4
DM
4
Deerfield Management
New York
$6.92M
5
PAMS
5
Pictet Asset Management (Switzerland)
Switzerland
$9.87M

Top Sellers

1
Adage Capital Partners
1
Adage Capital Partners
Massachusetts
$0
2
Nuveen Asset Management
2
Nuveen Asset Management
Illinois
$936K
3
HF
3
HRT Financial
New York
$0
4
Invesco
4
Invesco
Georgia
$275K
5
WP
5
Woodline Partners
California
$2.51M
Name Holding Trade Value Shares
Change 		Shares
Change %
AIG
76
American International Group
New York
$158K +$33.3K +523 +27%
QOP
77
Quinn Opportunity Partners
Virginia
$140K – – –
SG Americas Securities
78
SG Americas Securities
New York
$134K +$58.2K +914 +77%
Janus Henderson Group
79
Janus Henderson Group
United Kingdom
$130K +$59.9K +935 +85%
CG
80
Colony Group
Massachusetts
$130K -$94K -1,481 -42%
Legal & General Group
81
Legal & General Group
United Kingdom
$130K +$40.4K +635 +45%
Mariner
82
Mariner
Kansas
$126K +$68.6K +1,076 +120%
VOYA Investment Management
83
VOYA Investment Management
Georgia
$124K +$20.6K +324 +20%
HKAM
84
Horizon Kinetics Asset Management
New York
$121K +$121K +1,900 New
Mitsubishi UFJ Asset Management
85
Mitsubishi UFJ Asset Management
Japan
$121K – – –
Norges Bank
86
Norges Bank
Norway
$119K – – –
VEA
87
Virtus ETF Advisers
New York
$117K +$2.1K +33 +2%
BC
88
BIT Capital
Germany
$110K +$44K +700 +67%
T. Rowe Price Associates
89
T. Rowe Price Associates
Maryland
$109K +$15.8K +247 +17%
New York State Common Retirement Fund
90
New York State Common Retirement Fund
New York
$104K -$38.5K -603 -27%
QC
91
Quent Capital
New York
$104K – – –
Manulife (Manufacturers Life Insurance)
92
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$101K – – –
Teacher Retirement System of Texas
93
Teacher Retirement System of Texas
Texas
$101K +$26.1K +410 +35%
Principal Financial Group
94
Principal Financial Group
Iowa
$99.7K +$17.8K +280 +22%
Prudential Financial
95
Prudential Financial
New Jersey
$97.6K +$97.6K +1,535 New
ASRS
96
Arizona State Retirement System
Arizona
$94.8K +$25.6K +403 +37%
Osaic Holdings
97
Osaic Holdings
Arizona
$92.9K -$97.9K -1,542 -51%
MAM
98
Martingale Asset Management
Massachusetts
$88.9K – – –
RJFSA
99
Raymond James Financial Services Advisors
Florida
$88.1K -$12.9K -202 -13%
State Board of Administration of Florida Retirement System
100
State Board of Administration of Florida Retirement System
Florida
$88.1K – – –
2 3
4
5 6