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Biogen
BIIB

Overview Fund Activity

991 hedge funds and large institutions have $34.8B invested in Biogen in 2023 Q1 according to their latest regulatory filings, with 86 funds opening new positions, 340 increasing their positions, 361 reducing their positions, and 101 closing their positions.

Holders
991
Holders Change
-33
Holders Change %
-3.22%
% of All Funds
15.87%
Holding in Top 10
19
Holding in Top 10 Change
-5
Holding in Top 10 Change %
-20.83%
% of All Funds
0.3%
New
86
Increased
340
Reduced
361
Closed
101
Calls
$744M
Puts
$674M
Net Calls
+$70.1M
Net Calls Change
+$286M

Top Buyers

1
JPMorgan Chase & Co
1
JPMorgan Chase & Co
New York
$1.14B
2
T. Rowe Price Associates
2
T. Rowe Price Associates
Maryland
$581M
3
Fidelity Investments
3
Fidelity Investments
Massachusetts
$487M
4
PAMS
4
Pictet Asset Management (Switzerland)
Switzerland
$308M
5
CG
5
Carmignac Gestion
France
$86.2M

Top Sellers

1
Marshall Wace
1
Marshall Wace
United Kingdom
$148M
2
Man Group
2
Man Group
United Kingdom
$67.1M
3
Point72 Asset Management
3
Point72 Asset Management
Connecticut
$193M
4
Two Sigma Advisers
4
Two Sigma Advisers
New York
$83.7M
5
D.E. Shaw & Co
5
D.E. Shaw & Co
New York
$371M
Name Market Value Shares Shares
Change 		Shares
Change %
Primecap Management
1
Primecap Management
California
$4.45B 16,001,166 +300,590 +2%
BlackRock
2
BlackRock
New York
$3.89B 13,986,221 -274,392 -2%
Vanguard Group
3
Vanguard Group
Pennsylvania
$3.38B 12,157,662 +181,039 +2%
State Street
4
State Street
Massachusetts
$1.88B 6,757,000 -51,274 -0.8%
Wellington Management Group
5
Wellington Management Group
Massachusetts
$1.52B 5,452,888 +41,675 +0.8%
JPMorgan Chase & Co
6
JPMorgan Chase & Co
New York
$1.14B 4,108,863 +1,838,556 +81%
Geode Capital Management
7
Geode Capital Management
Massachusetts
$861M 3,102,735 -239,595 -7%
T. Rowe Price Associates
8
T. Rowe Price Associates
Maryland
$581M 2,088,356 +691,843 +50%
ClearBridge Investments
9
ClearBridge Investments
New York
$518M 1,864,745 +59,170 +3%
Fidelity Investments
10
Fidelity Investments
Massachusetts
$487M 1,752,614 +541,421 +45%
Northern Trust
11
Northern Trust
Illinois
$465M 1,671,289 -380 -0%
Deutsche Bank
12
Deutsche Bank
Germany
$456M 1,641,748 -209,366 -11%
Bank of New York Mellon
13
Bank of New York Mellon
New York
$410M 1,474,178 -38,778 -3%
Dimensional Fund Advisors
14
Dimensional Fund Advisors
Texas
$394M 1,416,521 +73,289 +5%
Norges Bank
15
Norges Bank
Norway
$383M 1,377,534 +69,832 +5%
Legal & General Group
16
Legal & General Group
United Kingdom
$378M 1,358,547 -22,112 -2%
D.E. Shaw & Co
17
D.E. Shaw & Co
New York
$371M 1,333,990 -422,092 -24%
Morgan Stanley
18
Morgan Stanley
New York
$363M 1,305,851 -116,965 -8%
Renaissance Technologies
19
Renaissance Technologies
New York
$351M 1,263,837 +263,561 +26%
UBS AM
20
UBS AM
Illinois
$310M 1,114,602 +20,411 +2%
PAMS
21
Pictet Asset Management (Switzerland)
Switzerland
$308M 1,108,366 +398,460 +56%
Invesco
22
Invesco
Georgia
$285M 1,023,927 +103,448 +11%
BGC
23
Beutel, Goodman & Co
Ontario, Canada
$272M 977,726 +22,830 +2%
Charles Schwab
24
Charles Schwab
California
$235M 844,382 +8,088 +1%
VanEck Associates
25
VanEck Associates
New York
$225M 810,378 +22,820 +3%
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