BLUE

bluebird bio
BLUE

Overview Fund Activity
Delisted

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

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186 hedge funds and large institutions have $182M invested in bluebird bio in 2023 Q4 according to their latest regulatory filings, with 54 funds opening new positions, 63 increasing their positions, 39 reducing their positions, and 32 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
186
Holders Change
+19
Holders Change %
+11.38%
% of All Funds
2.73%
Holding in Top 10
–
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-100%
% of All Funds
–
New
54
Increased
63
Reduced
39
Closed
32
Calls
$5.42M
Puts
$5.25M
Net Calls
+$166K
Net Calls Change
+$1.28M

Top Buyers

1
Alyeska Investment Group
1
Alyeska Investment Group
Illinois
$9.54M
2
Norges Bank
2
Norges Bank
Norway
$5.51M
3
PAI
3
Palo Alto Investors
California
$4.6M
4
Vanguard Group
4
Vanguard Group
Pennsylvania
$12.1M
5
GCM
5
Ghisallo Capital Management
Massachusetts
$4.35M

Top Sellers

1
BBA
1
Baker Bros. Advisors
New York
$0
2
PHS
2
PFM Health Sciences
California
$2.82M
3
TCM
3
Tang Capital Management
California
$2.35M
4
WP
4
Woodline Partners
California
$690K
5
CS
5
Credit Suisse
Switzerland
$97.5K
Name Holding Trade Value Shares
Change 		Shares
Change %
Principal Financial Group
101
Principal Financial Group
Iowa
$46K -$6.13K -222 -12%
QC
102
Quent Capital
New York
$45.5K – – –
State Board of Administration of Florida Retirement System
103
State Board of Administration of Florida Retirement System
Florida
$42.1K – – –
Focus Partners Wealth
104
Focus Partners Wealth
Massachusetts
$42K +$42K +1,533 New
JIC
105
Johnson Investment Counsel
Ohio
$38.5K +$20.3K +734 +111%
SIG
106
Sargent Investment Group
Maryland
$37.7K +$4.17K +151 +12%
RJFSA
107
Raymond James Financial Services Advisors
Florida
$37.5K +$2.37K +86 +7%
SFA
108
Sequoia Financial Advisors
Ohio
$37.4K +$37.4K +1,354 New
LPL Financial
109
LPL Financial
California
$37.1K +$37.1K +1,344 New
DTL
110
Dynamic Technology Lab
Singapore
$37K +$37K +1,338 New
QOP
111
Quinn Opportunity Partners
Virginia
$36.7K – – –
T. Rowe Price Associates
112
T. Rowe Price Associates
Maryland
$36K +$3.38K +120 +10%
ProShare Advisors
113
ProShare Advisors
Maryland
$34.1K +$5.24K +190 +18%
BJL
114
Brighton Jones LLC
Washington
$33.2K -$221 -8 -0.7%
IWC
115
Integrated Wealth Concepts
Massachusetts
$32.4K +$32.4K +1,175 New
GCP
116
GSA Capital Partners
United Kingdom
$29K +$29K +1,063 New
AAM
117
Advisors Asset Management
Colorado
$28.6K +$828 +30 +3%
HIC
118
Holderness Investments Company
North Carolina
$27.7K +$55 +2 +0.2%
GT
119
Glenmede Trust
Pennsylvania
$27.6K +$27.6K +1,000 New
Franklin Resources
120
Franklin Resources
California
$27.5K +$663 +24 +2%
XT
121
XTX Topco
Cayman Islands
$26.1K +$26.1K +947 New
Fiera Capital (Canada)
122
Fiera Capital (Canada)
Quebec, Canada
$26K – – –
California State Teachers Retirement System (CalSTRS)
123
California State Teachers Retirement System (CalSTRS)
California
$24.3K -$138K -5,002 -85%
Daiwa Securities Group
124
Daiwa Securities Group
Japan
$24K -$8.06K -290 -25%
FT
125
Fiduciary Trust
Massachusetts
$20.8K – – –
3 4
5
6 7