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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.

New
Increased
Maintained
Reduced
Closed
Holders
991
Holders Change
-33
Holders Change %
-3.22%
% of All Funds
15.86%
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 Holding Trade Value Shares
Change 		Shares
Change %
LSV Asset Management
51
LSV Asset Management
Illinois
$102M +$2.11M +7,600 +2%
Robeco Institutional Asset Management
52
Robeco Institutional Asset Management
Netherlands
$100M +$13.4M +48,290 +15%
Assenagon Asset Management
53
Assenagon Asset Management
Luxembourg
$98.8M -$48.9M -175,877 -33%
PBA
54
Paradigm Biocapital Advisors
New York
$97.2M +$30.8M +110,821 +46%
CS
55
Credit Suisse
Switzerland
$97.1M -$3.13M -11,263 -3%
Adage Capital Partners
56
Adage Capital Partners
Massachusetts
$92.3M +$30.4M +109,424 +49%
Ensign Peak Advisors
57
Ensign Peak Advisors
Utah
$91.3M +$27.4M +98,583 +43%
Envestnet Asset Management
58
Envestnet Asset Management
Illinois
$90.4M +$80M +2,263,120 +771%
Neuberger Berman Group
59
Neuberger Berman Group
New York
$86.9M +$3.04M +10,933 +4%
CG
60
Carmignac Gestion
France
$86.2M +$86.2M +310,100 New
California Public Employees Retirement System
61
California Public Employees Retirement System
California
$86.1M -$17.3M -62,275 -17%
Parnassus Investments
62
Parnassus Investments
California
$85M – – –
Two Sigma Advisers
63
Two Sigma Advisers
New York
$83.7M -$140M -503,100 -63%
Thrivent Financial for Lutherans
64
Thrivent Financial for Lutherans
Minnesota
$82.6M -$408K -1,466 -0.5%
UBS Group
65
UBS Group
Switzerland
$82.3M +$503K +1,809 +0.6%
AllianceBernstein
66
AllianceBernstein
Tennessee
$81.6M +$14.1M +50,545 +21%
Arrowstreet Capital
67
Arrowstreet Capital
Massachusetts
$80.8M -$43.4M -156,059 -35%
Royal Bank of Canada
68
Royal Bank of Canada
Ontario, Canada
$79.8M -$26.9M -96,925 -25%
Prudential Financial
69
Prudential Financial
New Jersey
$78.1M +$42.9M +154,220 +122%
RhumbLine Advisers
70
RhumbLine Advisers
Massachusetts
$77.8M +$327K +1,175 +0.4%
CS
71
Candriam SCA
Luxembourg
$76.5M +$239K +932 +0.3%
EAM
72
Erste Asset Management
Austria
$75M +$9.45M +34,088 +14%
FAM
73
Fred Alger Management
New York
$74.9M -$17.4M -62,627 -19%
National Pension Service
74
National Pension Service
South Korea
$73.6M +$18.7M +67,806 +34%
Russell Investments Group
75
Russell Investments Group
United Kingdom
$71.7M -$5.18M -18,648 -7%
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