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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 Holding Trade Value Shares
Change 		Shares
Change %
DM
51
Deerfield Management
New York
$86.7M -$38.6M -138,000 -31%
Boston Partners
52
Boston Partners
Massachusetts
$85.6M +$3.7M +13,221 +5%
Barclays
53
Barclays
United Kingdom
$82.6M -$57.4M -205,329 -41%
California State Teachers Retirement System (CalSTRS)
54
California State Teachers Retirement System (CalSTRS)
California
$82.5M -$417K -1,489 -0.5%
RhumbLine Advisers
55
RhumbLine Advisers
Massachusetts
$82.2M -$4.35M -15,559 -5%
New York State Common Retirement Fund
56
New York State Common Retirement Fund
New York
$81.7M -$6.18M -22,084 -7%
BNP Paribas Asset Management
57
BNP Paribas Asset Management
France
$80.9M +$8.54M +30,519 +12%
AC
58
Armistice Capital
New York
$80.6M +$8.39M +30,000 +12%
CS
59
Credit Suisse
Switzerland
$78.2M -$28.2M -100,801 -27%
Robeco Institutional Asset Management
60
Robeco Institutional Asset Management
Netherlands
$77.1M -$13.7M -48,910 -15%
Assenagon Asset Management
61
Assenagon Asset Management
Luxembourg
$73.9M +$3.69M +13,174 +5%
Canada Life
62
Canada Life
Manitoba, Canada
$73.7M -$8.63M -31,005 -10%
HSBC Holdings
63
HSBC Holdings
United Kingdom
$73.2M -$1.92M -6,908 -3%
Susquehanna International Group
64
Susquehanna International Group
Pennsylvania
$72.9M -$117M -417,254 -62%
AllianceBernstein
65
AllianceBernstein
Tennessee
$72M -$5.48M -19,602 -7%
SRIM
66
Saratoga Research & Investment Management
California
$71.1M +$2.09M +7,481 +3%
Citigroup
67
Citigroup
New York
$70.7M -$11.3M -40,462 -14%
National Pension Service
68
National Pension Service
South Korea
$69.7M -$1.6M -5,726 -2%
RPI
69
Railway Pension Investments
United Kingdom
$69.6M -$26.7M -95,354 -28%
TCM
70
Tekla Capital Management
Massachusetts
$69.1M – – –
Canada Pension Plan Investment Board
71
Canada Pension Plan Investment Board
Ontario, Canada
$68.5M +$64.2M +229,464 +1,499%
Swedbank
72
Swedbank
Sweden
$67.4M +$67.4M +240,792 New
Allianz Asset Management
73
Allianz Asset Management
Germany
$65.2M -$34M -121,533 -34%
Prudential Financial
74
Prudential Financial
New Jersey
$64.9M -$71.9M -256,996 -53%
PI
75
Putnam Investments
Massachusetts
$63.6M +$28.8M +102,793 +83%
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