BLUE

bluebird bio
BLUE

Overview Fund Activity
Delisted

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

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192 hedge funds and large institutions have $3.12B invested in bluebird bio in 2015 Q3 according to their latest regulatory filings, with 21 funds opening new positions, 93 increasing their positions, 59 reducing their positions, and 63 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
192
Holders Change
-43
Holders Change %
-18.3%
% of All Funds
5.37%
Holding in Top 10
4
Holding in Top 10 Change
-4
Holding in Top 10 Change %
-50%
% of All Funds
0.11%
New
21
Increased
93
Reduced
59
Closed
63
Calls
$59.5M
Puts
$64M
Net Calls
-$4.52M
Net Calls Change
-$9.39M

Top Buyers

1
Baillie Gifford & Co
Baillie Gifford & Co
United Kingdom
$409M
2
Viking Global Investors
Viking Global Investors
Connecticut
$52.7M
3
O
OppenheimerFunds
New York
$96.5M
4
First Trust Advisors
First Trust Advisors
Illinois
$28.2M
5
O
OrbiMed
New York
$102M

Top Sellers

1
TCP
Tourbillon Capital Partners
New York
$0
2
PC
Passport Capital
California
$0
3
Lord, Abbett & Co
Lord, Abbett & Co
New Jersey
$17.1M
4
Two Sigma Investments
Two Sigma Investments
New York
$0
5
KCM
Kingdon Capital Management
New York
$0
Name Holding Trade Value Shares
Change 		Shares
Change %
HLA
201
Hamilton Lane Advisors
Pennsylvania
– -$9.06M -4,154 Closed
Renaissance Technologies
202
Renaissance Technologies
New York
– -$7.68M -3,520 Closed
Arrowstreet Capital
203
Arrowstreet Capital
Massachusetts
– -$5.25M -2,409 Closed
QIM
204
Quantitative Investment Management
Virginia
– -$4.5M -2,061 Closed
OA
205
Omega Advisors
New York
– -$4.04M -1,852 Closed
DS
206
DRW Securities
Illinois
– -$3.78M -1,732 Closed
EI
207
EAM Investors
California
– -$3.45M -1,582 Closed
ACM
208
Atika Capital Management
New York
– -$3.2M -1,467 Closed
Connor, Clark & Lunn Investment Management (CC&L)
209
Connor, Clark & Lunn Investment Management (CC&L)
British Columbia, Canada
– -$3.19M -1,463 Closed
UOC
210
UBS O'Connor
Illinois
– -$2.65M -1,216 Closed
AI
211
Axiom Investors
Connecticut
– -$2.47M -1,134 Closed
JRP
212
Jasper Ridge Partners
California
– -$2.2M -1,008 Closed
MAM
213
Meeder Asset Management
Ohio
– -$2.17M -996 Closed
TRSOTSOK
214
Teachers Retirement System of the State of Kentucky
Kentucky
– -$2.04M -934 Closed
EEG
215
E.E. Geduld
– -$1.75M -801 Closed
Tudor Investment Corp
216
Tudor Investment Corp
Connecticut
– -$1.65M -757 Closed
TI
217
Trexquant Investment
Connecticut
– -$1.62M -741 Closed
MOACM
218
Mutual of America Capital Management
New York
– -$1.49M -683 Closed
BCM
219
BlueCrest Capital Management
Jersey
– -$1.45M -664 Closed
SCM
220
Suffolk Capital Management
New York
– -$1.37M -626 Closed
SGH
221
Schonfeld Group Holdings
New York
– -$1.08M -494 Closed
Neuberger Berman Group
222
Neuberger Berman Group
New York
– -$1.04M -479 Closed
IRF
223
IBM Retirement Fund
New York
– -$988K -453 Closed
DCM
224
Dupont Capital Management
Delaware
– -$891K -408 Closed
CAN
225
Cetera Advisor Networks
California
– -$629K -402 Closed
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