BLUE

bluebird bio
BLUE

Overview Fund Activity
Delisted

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

Back to rankings

168 hedge funds and large institutions have $272M invested in bluebird bio in 2023 Q3 according to their latest regulatory filings, with 15 funds opening new positions, 56 increasing their positions, 47 reducing their positions, and 21 closing their positions.

Holders
168
Holders Change
-7
Holders Change %
-4%
% of All Funds
2.68%
Holding in Top 10
1
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-50%
% of All Funds
0.02%
New
15
Increased
56
Reduced
47
Closed
21
Calls
$4.45M
Puts
$5.56M
Net Calls
-$1.11M
Net Calls Change
+$732K

Top Buyers

1
Pictet Asset Management
1
Pictet Asset Management
Switzerland
$15.6M
2
Ameriprise
2
Ameriprise
Minnesota
$7M
3
WP
3
Woodline Partners
California
$8.3M
4
CIM
4
Contrarius Investment Management
Jersey
$3.98M
5
BL
5
Bleichroeder LP
New York
$2.74M

Top Sellers

1
State Street
1
State Street
Massachusetts
$38.5M
2
TCM
2
Tang Capital Management
California
$13M
3
PHS
3
PFM Health Sciences
California
$18.4M
4
Walleye Capital
4
Walleye Capital
New York
$0
5
Bank of America
5
Bank of America
North Carolina
$3.7M
Name Market Value Shares Shares
Change 		Shares
Change %
GS
76
GTS Securities
New York
$159K 52,315 +10,761 +26%
EGM
77
Engineers Gate Manager
New York
$151K 49,685 +49,685 New
YIH
78
Y-Intercept (HK)
Hong Kong
$148K 48,761 +48,761 New
HWAM
79
Hennion & Walsh Asset Management
New Jersey
$148K 48,666 -9,608 -16%
American Century Companies
80
American Century Companies
Missouri
$135K 44,278 +13,765 +45%
VOYA Investment Management
81
VOYA Investment Management
Georgia
$132K 43,547 – –
Manulife (Manufacturers Life Insurance)
82
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$131K 43,031 – –
CG
83
Colony Group
Massachusetts
$128K 41,942 +2,623 +7%
Janus Henderson Group
84
Janus Henderson Group
United Kingdom
$123K 40,598 +3 +0%
HKAM
85
Horizon Kinetics Asset Management
New York
$116K 38,000 – –
Principal Financial Group
86
Principal Financial Group
Iowa
$115K 37,741 -650 -2%
Norges Bank
87
Norges Bank
Norway
$114K 37,391 – –
Osaic Holdings
88
Osaic Holdings
Arizona
$106K 34,906 +7,059 +25%
QC
89
Quent Capital
New York
$100K 33,000 – –
CAM
90
Connacht Asset Management
New York
$96.2K 31,634 +31,634 New
State Board of Administration of Florida Retirement System
91
State Board of Administration of Florida Retirement System
Florida
$92.8K 30,536 +160 +0.5%
ASRS
92
Arizona State Retirement System
Arizona
$92.1K 30,298 +421 +1%
Teacher Retirement System of Texas
93
Teacher Retirement System of Texas
Texas
$92K 30,220 +1,373 +5%
MAM
94
Martingale Asset Management
Massachusetts
$85K 27,967 – –
QOP
95
Quinn Opportunity Partners
Virginia
$80.9K 26,624 – –
Royal Bank of Canada
96
Royal Bank of Canada
Ontario, Canada
$80K 26,094 +6,831 +35%
RJFSA
97
Raymond James Financial Services Advisors
Florida
$77.4K 25,447 -1,862 -7%
Wolverine Trading
98
Wolverine Trading
Illinois
$76.5K 25,160 +5,585 +29%
SIG
99
Sargent Investment Group
Maryland
$73.9K 24,324 – –
BJL
100
Brighton Jones LLC
Washington
$73.6K 24,219 -491 -2%
2 3
4
5 6