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Biogen
BIIB

Overview Fund Activity

1,099 hedge funds and large institutions have $45B invested in Biogen in 2019 Q4 according to their latest regulatory filings, with 202 funds opening new positions, 272 increasing their positions, 469 reducing their positions, and 69 closing their positions.

Holders
1,099
Holders Change
+113
Holders Change %
+11.46%
% of All Funds
21.7%
Holding in Top 10
31
Holding in Top 10 Change
+14
Holding in Top 10 Change %
+82.35%
% of All Funds
0.61%
New
202
Increased
272
Reduced
469
Closed
69
Calls
$1.27B
Puts
$1.82B
Net Calls
-$553M
Net Calls Change
-$242M

Top Buyers

1
Wellington Management Group
1
Wellington Management Group
Massachusetts
$1.38B
2
Primecap Management
2
Primecap Management
California
$4.51B
3
T. Rowe Price Associates
3
T. Rowe Price Associates
Maryland
$597M
4
Berkshire Hathaway
4
Berkshire Hathaway
Nebraska
$192M
5
AAMU
5
Amundi Asset Management US
Massachusetts
$255M

Top Sellers

1
Invesco
1
Invesco
Georgia
$325M
2
Capital World Investors
2
Capital World Investors
California
$542M
3
ClearBridge Investments
3
ClearBridge Investments
New York
$1.51B
4
D.E. Shaw & Co
4
D.E. Shaw & Co
New York
$470M
5
AllianceBernstein
5
AllianceBernstein
Tennessee
$128M
Name Market Value Shares Shares
Change 		Shares
Change %
UBS AM
26
UBS AM
Illinois
$329M 1,107,351 -51,798 -4%
Invesco
27
Invesco
Georgia
$325M 1,093,629 -1,774,755 -62%
Bank of America
28
Bank of America
North Carolina
$302M 1,016,536 -322,671 -24%
Charles Schwab
29
Charles Schwab
California
$277M 934,331 -33,539 -3%
Prudential Financial
30
Prudential Financial
New Jersey
$264M 889,206 -46,460 -5%
AAMU
31
Amundi Asset Management US
Massachusetts
$255M 860,123 +633,249 +279%
Dimensional Fund Advisors
32
Dimensional Fund Advisors
Texas
$248M 835,322 +147,300 +21%
Wells Fargo
33
Wells Fargo
California
$248M 834,205 -13,213 -2%
Sumitomo Mitsui Trust Group
34
Sumitomo Mitsui Trust Group
Japan
$225M 759,460 -92,114 -11%
Man Group
35
Man Group
United Kingdom
$211M 709,416 +14,574 +2%
Barclays
36
Barclays
United Kingdom
$197M 664,526 +139,725 +27%
Berkshire Hathaway
37
Berkshire Hathaway
Nebraska
$192M 648,447 +648,447 New
SCM
38
Sarissa Capital Management
Connecticut
$191M 643,000 – –
PAMU
39
Pictet Asset Management (UK)
United Kingdom
$189M 637,685 -118,418 -16%
Allianz Asset Management
40
Allianz Asset Management
Germany
$188M 633,725 +66,855 +12%
PPA
41
Parametric Portfolio Associates
Washington
$187M 629,461 -2,242 -0.4%
Franklin Resources
42
Franklin Resources
California
$175M 589,130 +16,529 +3%
Swiss National Bank
43
Swiss National Bank
Switzerland
$173M 581,558 -58,800 -9%
First Trust Advisors
44
First Trust Advisors
Illinois
$161M 542,423 +118,511 +28%
GT
45
Glenmede Trust
Pennsylvania
$158M 533,522 -95,565 -15%
Nordea Investment Management
46
Nordea Investment Management
Sweden
$155M 522,041 +8,660 +2%
Millennium Management
47
Millennium Management
New York
$154M 519,614 -134,114 -21%
Schroder Investment Management Group
48
Schroder Investment Management Group
United Kingdom
$144M 486,109 -11,142 -2%
CS
49
Credit Suisse
Switzerland
$143M 480,868 -27,354 -5%
Assenagon Asset Management
50
Assenagon Asset Management
Luxembourg
$141M 476,841 -198,091 -29%
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