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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.

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 Market Value Shares Shares
Change 		Shares
Change %
Bank of America
26
Bank of America
North Carolina
$229M 817,766 +141,039 +21%
Charles Schwab
27
Charles Schwab
California
$197M 704,264 -6,138 -0.9%
PPA
28
Parametric Portfolio Associates
Washington
$185M 662,298 +18,408 +3%
Berkshire Hathaway
29
Berkshire Hathaway
Nebraska
$180M 643,022 – –
SCM
30
Sarissa Capital Management
Connecticut
$180M 643,000 – –
VanEck Associates
31
VanEck Associates
New York
$175M 624,044 +107,220 +21%
Morgan Stanley
32
Morgan Stanley
New York
$173M 617,787 -159,716 -21%
D.E. Shaw & Co
33
D.E. Shaw & Co
New York
$170M 609,240 -78,553 -11%
SAM
34
Southeastern Asset Management
Tennessee
$169M 603,890 +603,890 New
Swiss National Bank
35
Swiss National Bank
Switzerland
$166M 591,758 -6,200 -1%
Wells Fargo
36
Wells Fargo
California
$162M 580,736 -17,943 -3%
BG
37
Bellevue Group
Switzerland
$156M 558,400 -5,600 -1%
Sumitomo Mitsui Trust Group
38
Sumitomo Mitsui Trust Group
Japan
$149M 532,392 -69,879 -12%
Franklin Resources
39
Franklin Resources
California
$148M 530,279 +56,427 +12%
AAMU
40
Amundi Asset Management US
Massachusetts
$148M 529,457 -8,895 -2%
Nordea Investment Management
41
Nordea Investment Management
Sweden
$142M 513,521 -3,741 -0.7%
A
42
AustralianSuper
Australia
$142M 507,779 +368,303 +264%
First Trust Advisors
43
First Trust Advisors
Illinois
$118M 421,659 +8,441 +2%
California Public Employees Retirement System
44
California Public Employees Retirement System
California
$104M 372,703 -15,019 -4%
Royal Bank of Canada
45
Royal Bank of Canada
Ontario, Canada
$98.4M 351,736 -27,298 -7%
Acadian Asset Management
46
Acadian Asset Management
Massachusetts
$98.1M 350,732 -152,468 -30%
PAI
47
Palo Alto Investors
California
$96M 343,200 +108,900 +46%
Capital World Investors
48
Capital World Investors
California
$92.6M 330,992 +330,992 New
CS
49
Candriam SCA
Luxembourg
$91.9M 390,870 – –
Parnassus Investments
50
Parnassus Investments
California
$88M 314,412 +314,412 New
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