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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 %
VOYA Investment Management
126
VOYA Investment Management
Georgia
$32M -$1.49M -5,314 -4%
RSCM
127
Rock Springs Capital Management
Maryland
$31.8M +$3.78M +13,500 +14%
SIM
128
Sprucegrove Investment Management
Ontario, Canada
$29M +$29M +103,500 New
FCM
129
Farallon Capital Management
California
$28.8M – – –
Chevy Chase Trust
130
Chevy Chase Trust
Maryland
$28.8M -$2.46M -8,806 -8%
PHS
131
PFM Health Sciences
California
$28.5M -$3.52M -12,570 -11%
Korea Investment Corp
132
Korea Investment Corp
South Korea
$28.4M -$34.8M -124,441 -55%
ATN
133
AMF Tjänstepension
Sweden
$28.2M – – –
Twin Tree Management
134
Twin Tree Management
Texas
$27.8M +$13.2M +47,309 +91%
GLA
135
Great Lakes Advisors
Illinois
$27.6M -$563K -2,012 -2%
Fisher Asset Management
136
Fisher Asset Management
Washington
$27.6M -$1.68K -6 -0%
Ohio Public Employees Retirement System (OPERS)
137
Ohio Public Employees Retirement System (OPERS)
Ohio
$27.3M +$1.11M +3,978 +4%
SEI Investments
138
SEI Investments
Pennsylvania
$27.1M +$313K +1,161 +1%
BCM
139
Bridgeway Capital Management
Texas
$26.8M +$76.9K +275 +0.3%
KBC Group
140
KBC Group
Belgium
$26.4M -$1.08M -3,878 -4%
Fidelity International
141
Fidelity International
Bermuda
$26.3M +$3.96M +14,157 +18%
Treasurer of the State of North Carolina
142
Treasurer of the State of North Carolina
North Carolina
$26.2M -$401K -1,432 -2%
TAM
143
Tocqueville Asset Management
New York
$26.1M +$1.12M +4,007 +4%
State of New Jersey Common Pension Fund D
144
State of New Jersey Common Pension Fund D
New Jersey
$26.1M -$2.91M -10,417 -10%
Balyasny Asset Management
145
Balyasny Asset Management
Illinois
$25.1M +$15.2M +54,485 +155%
Handelsbanken Fonder
146
Handelsbanken Fonder
Sweden
$24.4M +$7.14M +25,525 +41%
Toronto Dominion Bank
147
Toronto Dominion Bank
Ontario, Canada
$24M -$5.06M -18,098 -17%
Retirement Systems of Alabama
148
Retirement Systems of Alabama
Alabama
$23.6M -$1.92M -6,872 -8%
O
149
OrbiMed
New York
$22.9M -$125M -447,400 -85%
BIAS
150
Beacon Investment Advisory Services
New Jersey
$22.9M +$1.35M +4,821 +6%
4 5
6
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