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Biogen
BIIB

Overview Fund Activity

1,098 hedge funds and large institutions have $43.4B invested in Biogen in 2021 Q2 according to their latest regulatory filings, with 134 funds opening new positions, 321 increasing their positions, 467 reducing their positions, and 110 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
1,098
Holders Change
+9
Holders Change %
+0.83%
% of All Funds
19.17%
Holding in Top 10
27
Holding in Top 10 Change
+14
Holding in Top 10 Change %
+107.69%
% of All Funds
0.47%
New
134
Increased
321
Reduced
467
Closed
110
Calls
$1.8B
Puts
$1.91B
Net Calls
-$111M
Net Calls Change
-$185M

Top Buyers

1
JPMorgan Chase & Co
1
JPMorgan Chase & Co
New York
$1.85B
2
Marshall Wace
2
Marshall Wace
United Kingdom
$226M
3
SC
3
Samlyn Capital
New York
$130M
4
Citadel Advisors
4
Citadel Advisors
Florida
$193M
5
HM
5
HealthCor Management
New York
$117M

Top Sellers

1
Renaissance Technologies
1
Renaissance Technologies
New York
$461M
2
Fidelity Investments
2
Fidelity Investments
Massachusetts
$468M
3
LSV Asset Management
3
LSV Asset Management
Illinois
$125M
4
Berkshire Hathaway
4
Berkshire Hathaway
Nebraska
$0
5
AQR Capital Management
5
AQR Capital Management
Connecticut
$178M
Name Holding Trade Value Shares
Change 		Shares
Change %
Envestnet Asset Management
76
Envestnet Asset Management
Illinois
$75.3M +$1.73M +4,991 +2%
State Board of Administration of Florida Retirement System
77
State Board of Administration of Florida Retirement System
Florida
$72.9M +$206K +596 +0.3%
TCM
78
Tekla Capital Management
Massachusetts
$72.4M -$13.1M -37,720 -15%
Swedbank
79
Swedbank
Sweden
$72.1M -$11.3M -32,512 -14%
Allianz Asset Management
80
Allianz Asset Management
Germany
$70.1M -$10.6M -30,680 -13%
Mitsubishi UFJ Trust & Banking
81
Mitsubishi UFJ Trust & Banking
Japan
$69.5M -$9.12M -26,316 -12%
SIM
82
Sprucegrove Investment Management
Ontario, Canada
$69.4M +$33.6M +96,900 +94%
Axa
83
Axa
France
$67.2M +$8.33M +24,043 +14%
ProShare Advisors
84
ProShare Advisors
Maryland
$66.9M -$2.78M -8,014 -4%
Westfield Capital Management
85
Westfield Capital Management
Massachusetts
$66.4M +$65.8M +189,985 +10,231%
Skandinaviska Enskilda Banken (SEB)
86
Skandinaviska Enskilda Banken (SEB)
Sweden
$66.2M +$16M +46,045 +32%
DekaBank Deutsche Girozentrale
87
DekaBank Deutsche Girozentrale
Germany
$66M -$7.91M -22,998 -11%
Thrivent Financial for Lutherans
88
Thrivent Financial for Lutherans
Minnesota
$65.9M +$10.3M +29,693 +18%
Ameriprise
89
Ameriprise
Minnesota
$65.6M -$2.95M -8,513 -4%
New York State Teachers Retirement System (NYSTRS)
90
New York State Teachers Retirement System (NYSTRS)
New York
$65.6M -$4.03M -11,632 -6%
Lord, Abbett & Co
91
Lord, Abbett & Co
New Jersey
$65M +$65M +187,722 New
Arrowstreet Capital
92
Arrowstreet Capital
Massachusetts
$64.7M +$64.7M +186,817 New
APM
93
Avidity Partners Management
Texas
$63.7M +$63.7M +183,900 New
CI
94
Cambiar Investors
Colorado
$63M +$7.72M +22,300 +14%
Acadian Asset Management
95
Acadian Asset Management
Massachusetts
$62.1M -$59.4M -171,511 -49%
Principal Financial Group
96
Principal Financial Group
Iowa
$62M -$556K -1,605 -0.9%
HSBC Holdings
97
HSBC Holdings
United Kingdom
$60.2M -$30.8M -88,967 -34%
CM
98
Caption Management
Oklahoma
$58.6M +$32.5M +93,830 +124%
Robeco Institutional Asset Management
99
Robeco Institutional Asset Management
Netherlands
$56.9M -$38.5M -111,144 -40%
EVM
100
Eaton Vance Management
Massachusetts
$56.6M +$9K +26 +0%
2 3
4
5 6