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Biogen
BIIB

Overview Fund Activity

990 hedge funds and large institutions have $33.5B invested in Biogen in 2023 Q4 according to their latest regulatory filings, with 132 funds opening new positions, 283 increasing their positions, 372 reducing their positions, and 81 closing their positions.

Holders
990
Holders Change
+35
Holders Change %
+3.66%
% of All Funds
14.52%
Holding in Top 10
10
Holding in Top 10 Change
-4
Holding in Top 10 Change %
-28.57%
% of All Funds
0.15%
New
132
Increased
283
Reduced
372
Closed
81
Calls
$643M
Puts
$499M
Net Calls
+$144M
Net Calls Change
+$86.4M

Top Buyers

1
Vanguard Group
1
Vanguard Group
Pennsylvania
$3.73B
2
Morgan Stanley
2
Morgan Stanley
New York
$817M
3
Invesco
3
Invesco
Georgia
$470M
4
T. Rowe Price Investment Management
4
T. Rowe Price Investment Management
Maryland
$1.39B
5
Fidelity International
5
Fidelity International
Bermuda
$170M

Top Sellers

1
SC
1
Samlyn Capital
New York
$0
2
Fidelity Investments
2
Fidelity Investments
Massachusetts
$259M
3
Renaissance Technologies
3
Renaissance Technologies
New York
$196M
4
AQR Capital Management
4
AQR Capital Management
Connecticut
$9.61M
5
D.E. Shaw & Co
5
D.E. Shaw & Co
New York
$6.19M
Name Market Value Shares Shares
Change 		Shares
Change %
BNP Paribas Financial Markets
76
BNP Paribas Financial Markets
France
$51.1M 197,602 +34,081 +21%
CS
77
Candriam SCA
Luxembourg
$47.9M 185,285 -48,674 -21%
Korea Investment Corp
78
Korea Investment Corp
South Korea
$45.5M 175,795 +31,659 +22%
Brown Advisory
79
Brown Advisory
Maryland
$44.3M 171,304 +2,282 +1%
Zurich Cantonal Bank
80
Zurich Cantonal Bank
Switzerland
$43.8M 169,381 -45,019 -21%
Principal Financial Group
81
Principal Financial Group
Iowa
$42.6M 164,533 -3,142 -2%
SRIM
82
Saratoga Research & Investment Management
California
$42.5M 164,226 -11,838 -7%
Mirae Asset Global Investments
83
Mirae Asset Global Investments
South Korea
$41.6M 160,724 -3,719 -2%
KAM
84
Krensavage Asset Management
New York
$41.5M 160,480 – –
Bank of Nova Scotia
85
Bank of Nova Scotia
Ontario, Canada
$41.5M 160,263 +130,169 +433%
Lord, Abbett & Co
86
Lord, Abbett & Co
New Jersey
$41.2M 159,399 -1,966 -1%
State Board of Administration of Florida Retirement System
87
State Board of Administration of Florida Retirement System
Florida
$41.2M 159,321 -744 -0.5%
Mitsubishi UFJ Asset Management
88
Mitsubishi UFJ Asset Management
Japan
$39.4M 149,428 +7,683 +5%
Canada Life
89
Canada Life
Manitoba, Canada
$37.5M 145,643 -16,518 -10%
ProShare Advisors
90
ProShare Advisors
Maryland
$37.3M 144,110 -24,291 -14%
BA
91
Bridgewater Associates
Connecticut
$37.1M 143,286 -7,591 -5%
RJA
92
Raymond James & Associates
Florida
$36.8M 142,076 -10,184 -7%
Nordea Investment Management
93
Nordea Investment Management
Sweden
$35.4M 136,730 -81,258 -37%
New York State Teachers Retirement System (NYSTRS)
94
New York State Teachers Retirement System (NYSTRS)
New York
$35.1M 135,449 -7,609 -5%
Manulife (Manufacturers Life Insurance)
95
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$35M 135,176 +6,980 +5%
Hudson Bay Capital Management
96
Hudson Bay Capital Management
Connecticut
$34.9M 135,000 +52,500 +64%
Victory Capital Management
97
Victory Capital Management
Texas
$33.9M 131,148 -2,982 -2%
RPI
98
Railway Pension Investments
United Kingdom
$33.1M 127,722 – –
WCM
99
Wedge Capital Management
North Carolina
$33M 127,488 +9,284 +8%
Prudential Financial
100
Prudential Financial
New Jersey
$32.8M 129,093 -106,717 -45%
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