BLUE

bluebird bio
BLUE

Overview Fund Activity
Delisted

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

Back to rankings

251 hedge funds and large institutions have $6.04B invested in bluebird bio in 2018 Q4 according to their latest regulatory filings, with 37 funds opening new positions, 98 increasing their positions, 76 reducing their positions, and 73 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
251
Holders Change
-37
Holders Change %
-12.85%
% of All Funds
5.6%
Holding in Top 10
1
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-50%
% of All Funds
0.02%
New
37
Increased
98
Reduced
76
Closed
73
Calls
$169M
Puts
$88.3M
Net Calls
+$80.8M
Net Calls Change
+$54.9M

Top Buyers

1
Wellington Management Group
Wellington Management Group
Massachusetts
+$300M
2
Capital International Investors
Capital International Investors
California
+$178M
3
Fiera Capital (Canada)
Fiera Capital (Canada)
Quebec, Canada
+$33M
4
Capital World Investors
Capital World Investors
California
+$28.5M
5
Two Sigma Investments
Two Sigma Investments
New York
+$25.3M

Top Sellers

1
T. Rowe Price Associates
T. Rowe Price Associates
Maryland
-$137M
2
RG
Redmile Group
California
-$36.8M
3
Bank of New York Mellon
Bank of New York Mellon
New York
-$35.3M
4
MCM
Masters Capital Management
Georgia
-$30.7M
5
AllianceBernstein
AllianceBernstein
Tennessee
-$27.9M
Name Holding Trade Value Shares
Change 		Shares
Change %
RG
251
Redmile Group
California
– -$36.8M -19,462 Closed
MCM
252
Masters Capital Management
Georgia
– -$30.7M -16,241 Closed
AC
253
Armistice Capital
New York
– -$12.8M -6,794 Closed
GTC
254
Ghost Tree Capital
New York
– -$11M -5,790 Closed
DM
255
Deerfield Management
New York
– -$8.97M -4,743 Closed
WBC
256
Westpac Banking Corp
Australia
– -$4.95M -2,618 Closed
Wolverine Trading
257
Wolverine Trading
Illinois
– -$3.92M -2,074 Closed
BCM
258
BlueCrest Capital Management
Jersey
– -$3.71M -1,962 Closed
CCP
259
Clough Capital Partners
Massachusetts
– -$3.19M -1,687 Closed
ACM
260
Atika Capital Management
New York
– -$2.64M -1,397 Closed
FIM
261
Foresters Investment Management
New York
– -$2.28M -1,206 Closed
Hudson Bay Capital Management
262
Hudson Bay Capital Management
Connecticut
– -$2.25M -1,189 Closed
Citadel Advisors
263
Citadel Advisors
Florida
– -$2.22M -1,172 Closed
Point72 Asset Management
264
Point72 Asset Management
Connecticut
– -$2.19M -1,158 Closed
AQR Capital Management
265
AQR Capital Management
Connecticut
– -$1.73M -915 Closed
TAM
266
Tiverton Asset Management
Delaware
– -$1.67M -884 Closed
Mackenzie Financial
267
Mackenzie Financial
Ontario, Canada
– -$1.52M -801 Closed
RA
268
Royce & Associates
New York
– -$1.46M -772 Closed
CA
269
Commerzbank Aktiengesellschaft
Germany
– -$1.16M -614 Closed
SGH
270
Sivik Global Healthcare
Connecticut
– -$1.1M -579 Closed
EP
271
Elkfork Partners
Oregon
– -$1.09M -575 Closed
Neuberger Berman Group
272
Neuberger Berman Group
New York
– -$1.05M -556 Closed
Teacher Retirement System of Texas
273
Teacher Retirement System of Texas
Texas
– -$919K -486 Closed
GHCM
274
Glen Harbor Capital Management
California
– -$895K -473 Closed
Man Group
275
Man Group
United Kingdom
– -$891K -472 Closed
9 10
11
12 13