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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 %
Primecap Management
1
Primecap Management
California
$4.21B 16,264,481 +251,915 +2%
Vanguard Group
2
Vanguard Group
Pennsylvania
$3.73B 14,407,330 +2,218,744 +18%
BlackRock
3
BlackRock
New York
$3.69B 14,246,658 +272,071 +2%
State Street
4
State Street
Massachusetts
$1.8B 6,945,665 +80,011 +1%
T. Rowe Price Investment Management
5
T. Rowe Price Investment Management
Maryland
$1.39B 5,357,326 +602,335 +13%
Wellington Management Group
6
Wellington Management Group
Massachusetts
$1.38B 5,324,396 -49,914 -0.9%
JPMorgan Chase & Co
7
JPMorgan Chase & Co
New York
$1.31B 5,072,640 +86,888 +2%
Geode Capital Management
8
Geode Capital Management
Massachusetts
$854M 3,309,317 +72,430 +2%
Morgan Stanley
9
Morgan Stanley
New York
$817M 3,155,554 +1,662,441 +111%
Invesco
10
Invesco
Georgia
$470M 1,814,666 +633,292 +54%
ClearBridge Investments
11
ClearBridge Investments
New York
$435M 1,679,302 -143,880 -8%
T. Rowe Price Associates
12
T. Rowe Price Associates
Maryland
$390M 1,508,346 +344,816 +30%
Northern Trust
13
Northern Trust
Illinois
$387M 1,494,963 -148,072 -9%
Norges Bank
14
Norges Bank
Norway
$379M 1,463,571 -65,525 -4%
Dimensional Fund Advisors
15
Dimensional Fund Advisors
Texas
$369M 1,424,659 +43,444 +3%
VanEck Associates
16
VanEck Associates
New York
$368M 1,421,196 +231,650 +19%
Bank of New York Mellon
17
Bank of New York Mellon
New York
$360M 1,389,698 -40,434 -3%
Legal & General Group
18
Legal & General Group
United Kingdom
$343M 1,325,096 -13,982 -1%
Pictet Asset Management
19
Pictet Asset Management
Switzerland
$326M 1,257,959 +45,477 +4%
Deutsche Bank
20
Deutsche Bank
Germany
$308M 1,189,890 +253,408 +27%
Amundi
21
Amundi
France
$307M 1,201,706 +108,182 +10%
Goldman Sachs
22
Goldman Sachs
New York
$284M 1,095,823 +304,978 +39%
UBS AM
23
UBS AM
Illinois
$263M 1,014,583 -50,935 -5%
Fidelity Investments
24
Fidelity Investments
Massachusetts
$259M 1,001,144 -359,907 -26%
BGC
25
Beutel, Goodman & Co
Ontario, Canada
$258M 995,456 -3,820 -0.4%
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