BLUE

bluebird bio
BLUE

Overview Fund Activity
Delisted

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

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262 hedge funds and large institutions have $2.73B invested in bluebird bio in 2020 Q4 according to their latest regulatory filings, with 46 funds opening new positions, 93 increasing their positions, 86 reducing their positions, and 57 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
262
Holders Change
-13
Holders Change %
-4.73%
% of All Funds
4.65%
Holding in Top 10
–
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-100%
% of All Funds
–
New
46
Increased
93
Reduced
86
Closed
57
Calls
$45.9M
Puts
$49.1M
Net Calls
-$3.22M
Net Calls Change
-$4.62M

Top Buyers

1
CS
Credit Suisse
Switzerland
+$36.6M
2
State Street
State Street
Massachusetts
+$24.6M
3
Royal Bank of Canada
Royal Bank of Canada
Ontario, Canada
+$18.8M
4
JPMorgan Chase & Co
JPMorgan Chase & Co
New York
+$18.5M
5
SCM
Suvretta Capital Management
New York
+$18.5M

Top Sellers

1
Wellington Management Group
Wellington Management Group
Massachusetts
-$80.6M
2
Baillie Gifford & Co
Baillie Gifford & Co
United Kingdom
-$29.6M
3
TCM
TimesSquare Capital Management
New York
-$26.7M
4
ACA
Anchor Capital Advisors
Massachusetts
-$21.4M
5
GGHC
Gilder Gagnon Howe & Co
New York
-$19.7M
Name Holding Trade Value Shares
Change 		Shares
Change %
Credit Agricole
126
Credit Agricole
France
$798K +$605K +1,078 +312%
TMAM
127
Tokio Marine Asset Management
Japan
$753K -$182K -325 -19%
CL
128
CSS LLC
Illinois
$722K +$722K +1,289 New
Federated Hermes
129
Federated Hermes
Pennsylvania
$720K +$297K +530 +70%
TRCT
130
Tower Research Capital (TRC)
New York
$713K +$543K +968 +319%
CM
131
Caption Management
Oklahoma
$692K +$692K +1,235 New
VOYA Investment Management
132
VOYA Investment Management
Georgia
$686K -$29.2K -52 -4%
SEC
133
Seven Eight Capital
New York
$623K +$402K +718 +182%
MAM
134
Martingale Asset Management
Massachusetts
$602K -$73.4K -131 -11%
PA
135
Profund Advisors
Maryland
$585K +$52.7K +94 +10%
URS
136
Utah Retirement Systems
Utah
$571K +$25.8K +46 +5%
CAPTRUST Financial Advisors
137
CAPTRUST Financial Advisors
North Carolina
$543K -$95.3K -170 -15%
Handelsbanken Fonder
138
Handelsbanken Fonder
Sweden
$542K – – –
Cambridge Investment Research Advisors
139
Cambridge Investment Research Advisors
Iowa
$535K -$338K -604 -39%
Two Sigma Investments
140
Two Sigma Investments
New York
$523K -$2.08M -3,717 -80%
WM
141
WS Management
Florida
$510K – – –
ProShare Advisors
142
ProShare Advisors
Maryland
$495K -$16.3K -29 -3%
SAM
143
Shell Asset Management
Netherlands
$488K +$267K +477 +121%
IBT
144
International Biotechnology Trust
United Kingdom
$476K – – –
Osaic Holdings
145
Osaic Holdings
Arizona
$475K +$20.7K +37 +5%
DnB Asset Management
146
DnB Asset Management
Norway
$470K +$32.5K +58 +7%
HSBC Holdings
147
HSBC Holdings
United Kingdom
$467K +$94K +167 +25%
BCM
148
Bayesian Capital Management
New York
$463K +$164K +293 +55%
BWAM
149
Boyd Watterson Asset Management
Ohio
$459K +$459K +818 New
AB
150
Amalgamated Bank
New York
$456K -$561 -1 -0.1%
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