BLUE

bluebird bio
BLUE

Overview Fund Activity
Delisted

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

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195 hedge funds and large institutions have $2.53B invested in bluebird bio in 2015 Q4 according to their latest regulatory filings, with 46 funds opening new positions, 86 increasing their positions, 49 reducing their positions, and 41 closing their positions.

Holders
195
Holders Change
+3
Holders Change %
+1.56%
% of All Funds
5.12%
Holding in Top 10
3
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-25%
% of All Funds
0.08%
New
46
Increased
86
Reduced
49
Closed
41
Calls
$39.2M
Puts
$52M
Net Calls
-$12.8M
Net Calls Change
-$8.29M

Top Buyers

1
Capital World Investors
1
Capital World Investors
California
$133M
2
PHS
2
PFM Health Sciences
California
$42.9M
3
Jennison Associates
3
Jennison Associates
New York
$55.5M
4
State Street
4
State Street
Massachusetts
$61.3M
5
Ameriprise
5
Ameriprise
Minnesota
$32.3M

Top Sellers

1
Viking Global Investors
1
Viking Global Investors
Connecticut
$0
2
DM
2
Deerfield Management
New York
$0
3
First Trust Advisors
3
First Trust Advisors
Illinois
$0
4
Point72 Asset Management
4
Point72 Asset Management
Connecticut
$0
5
Lord, Abbett & Co
5
Lord, Abbett & Co
New Jersey
$0
Name Market Value Shares Shares
Change 		Shares
Change %
Nuveen Asset Management
201
Nuveen Asset Management
Illinois
– – -110,564 Closed
Voloridge Investment Management
202
Voloridge Investment Management
Florida
– – -94,019 Closed
GL
203
GLG LLC
New York
– – -73,944 Closed
SIM
204
Spark Investment Management
New York
– – -61,300 Closed
GCP
205
GSA Capital Partners
United Kingdom
– – -58,401 Closed
Adage Capital Partners
206
Adage Capital Partners
Massachusetts
– – -46,300 Closed
Alyeska Investment Group
207
Alyeska Investment Group
Illinois
– – -45,000 Closed
NIT
208
NumerixS Investment Technologies
British Columbia, Canada
– – -24,202 Closed
Two Sigma Advisers
209
Two Sigma Advisers
New York
– – -13,700 Closed
PP
210
Paloma Partners
Connecticut
– – -13,201 Closed
SG Americas Securities
211
SG Americas Securities
New York
– – -9,140 Closed
PG
212
PEAK6 Group
Illinois
– – -8,500 Closed
VKH
213
Virtu KCG Holdings
New York
– – -8,459 Closed
GPCM
214
Granite Point Capital Management
Massachusetts
– – -8,000 Closed
SCM
215
Stevens Capital Management
Pennsylvania
– – -7,413 Closed
JG
216
Jefferies Group
New York
– – -7,306 Closed
SGH
217
Sivik Global Healthcare
Connecticut
– – -6,000 Closed
D.E. Shaw & Co
218
D.E. Shaw & Co
New York
– – -5,065 Closed
DCM
219
Driehaus Capital Management
Illinois
– – -4,964 Closed
AG
220
Aperio Group
California
– – -4,549 Closed
US Bancorp
221
US Bancorp
Minnesota
– – -4,313 Closed
PM
222
Parametrica Management
Hong Kong
– – -4,084 Closed
PCM
223
Prelude Capital Management
New York
– – -3,402 Closed
HI
224
HBK Investments
Texas
– – -2,561 Closed
M&T Bank
225
M&T Bank
New York
– – -2,413 Closed
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