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1,104 hedge funds and large institutions have $43.5B invested in Biogen in 2021 Q2 according to their latest regulatory filings, with 136 funds opening new positions, 324 increasing their positions, 468 reducing their positions, and 110 closing their positions.

New
Increased
Maintained
Reduced
Closed

108% more funds holding in top 10

Funds holding in top 10: 1327 (+14)

24% more first-time investments, than exits

New positions opened: 136 | Existing positions closed: 110

22% more capital invested

Capital invested by funds: $35.7B → $43.5B (+$7.81B)

1% more funds holding

Funds holding: 1,0931,104 (+11)

0.17% less ownership

Funds ownership: 83.93%83.76% (-0.17%)

6% less call options, than puts

Call options by funds: $1.8B | Put options by funds: $1.91B

31% less repeat investments, than reductions

Existing positions increased: 324 | Existing positions reduced: 468

Holders
1,104
Holders Change
+11
Holders Change %
+1.01%
% of All Funds
19.22%
Holding in Top 10
27
Holding in Top 10 Change
+14
Holding in Top 10 Change %
+107.69%
% of All Funds
0.47%
New
136
Increased
324
Reduced
468
Closed
110
Calls
$1.8B
Puts
$1.91B
Net Calls
-$111M
Net Calls Change
-$185M
Name Holding Trade Value Shares
Change
Change in
Stake
Morgan Stanley
26
Morgan Stanley
New York
$243M +$25.6M +84,388 +14%
Bank of America
27
Bank of America
North Carolina
$240M -$38M -125,515 -15%
PPA
28
Parametric Portfolio Associates
Washington
$237M +$6.87M +22,666 +3%
Marshall Wace
29
Marshall Wace
United Kingdom
$226M +$148M +488,764 +301%
SCM
30
Sarissa Capital Management
Connecticut
$223M
Swiss National Bank
31
Swiss National Bank
Switzerland
$215M +$8.88M +29,314 +5%
Amundi
32
Amundi
France
$215M +$188M +619,698 New
VanEck Associates
33
VanEck Associates
New York
$207M -$8.33M -27,497 -4%
Citadel Advisors
34
Citadel Advisors
Florida
$193M +$101M +333,326 +149%
Wells Fargo
35
Wells Fargo
California
$190M -$9.42M -31,100 -5%
BG
36
Bellevue Group
Switzerland
$183M -$9.18M -30,300 -5%
AQR Capital Management
37
AQR Capital Management
Connecticut
$178M -$155M -510,943 -50%
Sumitomo Mitsui Trust Group
38
Sumitomo Mitsui Trust Group
Japan
$171M -$11.4M -37,667 -7%
California Public Employees Retirement System
39
California Public Employees Retirement System
California
$164M +$30.5M +100,803 +27%
Franklin Resources
40
Franklin Resources
California
$163M -$17.9M -58,979 -11%
Parnassus Investments
41
Parnassus Investments
California
$157M +$41.7M +137,641 +44%
Nordea Investment Management
42
Nordea Investment Management
Sweden
$154M -$20.8M -68,522 -13%
First Trust Advisors
43
First Trust Advisors
Illinois
$150M +$3.16M +10,447 +2%
Royal Bank of Canada
44
Royal Bank of Canada
Ontario, Canada
$134M +$10.9M +36,132 +10%
Susquehanna International Group
45
Susquehanna International Group
Pennsylvania
$131M +$35.3M +116,668 +45%
SC
46
Samlyn Capital
New York
$130M +$114M +376,231 New
AC
47
Armistice Capital
New York
$127M +$24.2M +80,000 +28%
PAI
48
Palo Alto Investors
California
$125M +$5.57M +18,400 +5%
LSV Asset Management
49
LSV Asset Management
Illinois
$125M -$169M -557,961 -61%
Assenagon Asset Management
50
Assenagon Asset Management
Luxembourg
$122M +$26.7M +88,059 +33%