BIIB icon

Biogen
BIIB

Overview Fund Activity

1,089 hedge funds and large institutions have $35.6B invested in Biogen in 2021 Q1 according to their latest regulatory filings, with 140 funds opening new positions, 357 increasing their positions, 406 reducing their positions, and 99 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
1,089
Holders Change
+33
Holders Change %
+3.13%
% of All Funds
19.18%
Holding in Top 10
13
Holding in Top 10 Change
+6
Holding in Top 10 Change %
+85.71%
% of All Funds
0.23%
New
140
Increased
357
Reduced
406
Closed
99
Calls
$1.45B
Puts
$1.37B
Net Calls
+$74.1M
Net Calls Change
-$267M

Top Buyers

1
JPMorgan Chase & Co
1
JPMorgan Chase & Co
New York
$1.09B
2
Primecap Management
2
Primecap Management
California
$4.69B
3
SAM
3
Southeastern Asset Management
Tennessee
$169M
4
ClearBridge Investments
4
ClearBridge Investments
New York
$1.11B
5
A
5
AustralianSuper
Australia
$142M

Top Sellers

1
Renaissance Technologies
1
Renaissance Technologies
New York
$542M
2
O
2
OrbiMed
New York
$22.9M
3
Susquehanna International Group
3
Susquehanna International Group
Pennsylvania
$72.9M
4
Marshall Wace
4
Marshall Wace
United Kingdom
$45.5M
5
State Street
5
State Street
Massachusetts
$1.87B
Name Holding Trade Value Shares
Change 		Shares
Change %
PP
1101
Prudential plc
United Kingdom
– -$3.17M -12,963 Closed
EGM
1102
Engineers Gate Manager
New York
– -$3.16M -12,908 Closed
IMC Chicago
1103
IMC Chicago
Illinois
– -$2.94M -11,998 Closed
LG
1104
Leuthold Group
Minnesota
– -$2.54M -10,358 Closed
IHAM
1105
Integral Health Asset Management
New York
– -$2.45M -10,000 Closed
QT
1106
Quantbot Technologies
New York
– -$2.24M -9,158 Closed
MAM
1107
Martingale Asset Management
Massachusetts
– -$1.96M -8,008 Closed
EA
1108
Ellsworth Advisors
Ohio
– -$1.77M -7,228 Closed
WC
1109
Winmill & Co
New York
– -$1.69M -6,900 Closed
SS
1110
Simplicity Solutions
Minnesota
– -$1.66M -6,785 Closed
AAMU
1111
AEGON Asset Management (UK)
United Kingdom
– -$1.57M -6,410 Closed
SC
1112
Slow Capital
California
– -$1.49M -6,067 Closed
FIA
1113
FNY Investment Advisers
New York
– -$1.22M -5,000 Closed
CC
1114
Centiva Capital
New York
– -$1.13M -4,610 Closed
BCM
1115
Bayesian Capital Management
New York
– -$1.03M -4,200 Closed
PFM
1116
Patton Fund Management
Texas
– -$995K -4,063 Closed
Squarepoint
1117
Squarepoint
New York
– -$991K -4,047 Closed
DF
1118
Donoghue Forlines
Massachusetts
– -$973K -3,973 Closed
SCM
1119
Soleus Capital Management
Connecticut
– -$955K -3,899 Closed
JGC
1120
J. Goldman & Co
New York
– -$895K -3,657 Closed
RIA
1121
Regal Investment Advisors
Michigan
– -$887K -3,624 Closed
Tudor Investment Corp
1122
Tudor Investment Corp
Connecticut
– -$842K -3,438 Closed
BBHBI
1123
B, B, H, & B Inc
Alabama
– -$810K -3,310 Closed
AC
1124
Athanor Capital
New York
– -$675K -2,756 Closed
RIM
1125
Redwood Investment Management
Arizona
– -$661K -2,699 Closed
43 44
45
46 47