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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.

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
Amundi
2
Amundi
France
$215M
3
Marshall Wace
3
Marshall Wace
United Kingdom
$226M
4
SC
4
Samlyn Capital
New York
$130M
5
Citadel Advisors
5
Citadel Advisors
Florida
$193M

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 Market Value Shares Shares
Change 		Shares
Change %
Primecap Management
1
Primecap Management
California
$5.7B 16,458,506 -299,750 -2%
BlackRock
2
BlackRock
New York
$4.57B 13,206,591 -296,037 -2%
Vanguard Group
3
Vanguard Group
Pennsylvania
$4.07B 11,753,333 -100,325 -0.8%
State Street
4
State Street
Massachusetts
$2.31B 6,680,040 +7,507 +0.1%
Wellington Management Group
5
Wellington Management Group
Massachusetts
$1.94B 5,601,861 -300,980 -5%
JPMorgan Chase & Co
6
JPMorgan Chase & Co
New York
$1.85B 5,354,766 +1,467,865 +38%
ClearBridge Investments
7
ClearBridge Investments
New York
$1.23B 3,565,112 -403,932 -10%
Geode Capital Management
8
Geode Capital Management
Massachusetts
$1B 2,893,750 +97,239 +3%
Northern Trust
9
Northern Trust
Illinois
$716M 2,067,539 -52,969 -2%
Norges Bank
10
Norges Bank
Norway
$631M 1,821,151 +69,083 +4%
Bank of New York Mellon
11
Bank of New York Mellon
New York
$611M 1,765,832 -411,266 -19%
T. Rowe Price Associates
12
T. Rowe Price Associates
Maryland
$558M 1,612,563 -164,608 -9%
Deutsche Bank
13
Deutsche Bank
Germany
$490M 1,415,194 +128,955 +10%
Legal & General Group
14
Legal & General Group
United Kingdom
$480M 1,385,692 +189,746 +16%
Fidelity Investments
15
Fidelity Investments
Massachusetts
$468M 1,352,218 -562,998 -29%
Renaissance Technologies
16
Renaissance Technologies
New York
$461M 1,330,003 -608,159 -31%
American Century Companies
17
American Century Companies
Missouri
$430M 1,242,043 +258,217 +26%
Dimensional Fund Advisors
18
Dimensional Fund Advisors
Texas
$411M 1,187,688 +75,020 +7%
UBS AM
19
UBS AM
Illinois
$394M 1,138,473 -21,311 -2%
Invesco
20
Invesco
Georgia
$361M 1,043,458 +9,417 +0.9%
PAMU
21
Pictet Asset Management (UK)
United Kingdom
$302M 871,921 -156,545 -15%
Nuveen Asset Management
22
Nuveen Asset Management
Illinois
$294M 849,906 +22,598 +3%
Goldman Sachs
23
Goldman Sachs
New York
$291M 841,078 +3,518 +0.4%
D.E. Shaw & Co
24
D.E. Shaw & Co
New York
$273M 789,693 +180,453 +30%
Charles Schwab
25
Charles Schwab
California
$251M 723,829 +19,565 +3%
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