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Biogen
BIIB

Overview Fund Activity

999 hedge funds and large institutions have $36B invested in Biogen in 2023 Q2 according to their latest regulatory filings, with 97 funds opening new positions, 319 increasing their positions, 359 reducing their positions, and 83 closing their positions.

Holders
999
Holders Change
+8
Holders Change %
+0.81%
% of All Funds
15.76%
Holding in Top 10
18
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-5.26%
% of All Funds
0.28%
New
97
Increased
319
Reduced
359
Closed
83
Calls
$555M
Puts
$599M
Net Calls
-$44.6M
Net Calls Change
-$115M

Top Buyers

1
T. Rowe Price Investment Management
1
T. Rowe Price Investment Management
Maryland
$968M
2
Fidelity Investments
2
Fidelity Investments
Massachusetts
$752M
3
Amundi
3
Amundi
France
$339M
4
Alyeska Investment Group
4
Alyeska Investment Group
Illinois
$105M
5
JPMorgan Chase & Co
5
JPMorgan Chase & Co
New York
$1.27B

Top Sellers

1
Envestnet Asset Management
1
Envestnet Asset Management
Illinois
$89.1M
2
T. Rowe Price Associates
2
T. Rowe Price Associates
Maryland
$321M
3
Marshall Wace
3
Marshall Wace
United Kingdom
$1.44M
4
D.E. Shaw & Co
4
D.E. Shaw & Co
New York
$241M
5
Millennium Management
5
Millennium Management
New York
$12.6M
Name Market Value Shares Shares
Change 		Shares
Change %
CS
51
Credit Suisse
Switzerland
$100M 351,396 +2,303 +0.7%
Robeco Institutional Asset Management
52
Robeco Institutional Asset Management
Netherlands
$97.8M 343,217 -18,230 -5%
AQR Capital Management
53
AQR Capital Management
Connecticut
$95.7M 336,388 -86,098 -20%
Ensign Peak Advisors
54
Ensign Peak Advisors
Utah
$95.5M 335,308 +6,915 +2%
Bank of America
55
Bank of America
North Carolina
$92.9M 326,179 -159,731 -33%
PCH
56
Polar Capital Holdings
United Kingdom
$92.6M 325,000 +75,000 +30%
Envestnet Asset Management
57
Envestnet Asset Management
Illinois
$89.1M 312,875 -2,243,708 -88%
Neuberger Berman Group
58
Neuberger Berman Group
New York
$89M 312,439 -25 -0%
CG
59
Carmignac Gestion
France
$88.3M 310,100 – –
Parnassus Investments
60
Parnassus Investments
California
$87.1M 305,808 – –
Arrowstreet Capital
61
Arrowstreet Capital
Massachusetts
$84.3M 295,843 +5,103 +2%
Thrivent Financial for Lutherans
62
Thrivent Financial for Lutherans
Minnesota
$82.4M 289,304 -7,838 -3%
HSBC Holdings
63
HSBC Holdings
United Kingdom
$80.7M 283,509 +33,429 +13%
RhumbLine Advisers
64
RhumbLine Advisers
Massachusetts
$80M 280,736 +956 +0.3%
National Pension Service
65
National Pension Service
South Korea
$79.3M 281,212 +13,881 +5%
California Public Employees Retirement System
66
California Public Employees Retirement System
California
$78.2M 274,631 -34,986 -11%
EAM
67
Erste Asset Management
Austria
$77.6M 273,096 +2,561 +0.9%
AC
68
Armistice Capital
New York
$72.9M 256,000 -194,000 -43%
Wells Fargo
69
Wells Fargo
California
$71.2M 249,828 -5,194 -2%
TCM
70
Tekla Capital Management
Massachusetts
$70.6M 247,943 +7,017 +3%
AllianceBernstein
71
AllianceBernstein
Tennessee
$68.5M 240,399 -53,124 -18%
DekaBank Deutsche Girozentrale
72
DekaBank Deutsche Girozentrale
Germany
$67.4M 238,599 +4,317 +2%
Citigroup
73
Citigroup
New York
$66.9M 234,902 +4,936 +2%
CS
74
Candriam SCA
Luxembourg
$66.6M 233,897 -64,848 -22%
California State Teachers Retirement System (CalSTRS)
75
California State Teachers Retirement System (CalSTRS)
California
$66.5M 233,553 -14,231 -6%
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