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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 %
MSV
151
MN Services Vermogensbeheer
Netherlands
$19.6M 68,808 -4,600 -6%
Nisa Investment Advisors
152
Nisa Investment Advisors
Missouri
$19.2M 67,389 -4,342 -6%
BGIM
153
Brandywine Global Investment Management
Pennsylvania
$19.1M 67,165 +1,528 +2%
Macquarie Group
154
Macquarie Group
Australia
$18.6M 65,399 +6,059 +10%
Rafferty Asset Management
155
Rafferty Asset Management
New York
$18.5M 64,793 +5,628 +10%
RPAM
156
Rhenman & Partners Asset Management
Sweden
$18.4M 64,500 +17,000 +36%
UM
157
UniSuper Management
Australia
$18.3M 64,098 +64,098 New
Fidelity International
158
Fidelity International
Bermuda
$18.2M 63,986 +99 +0.2%
DnB Asset Management
159
DnB Asset Management
Norway
$18M 63,069 +3,929 +7%
BCM
160
Boone Capital Management
Georgia
$17.9M 62,877 +3,355 +6%
MAM
161
Martingale Asset Management
Massachusetts
$17.9M 62,708 -16 -0%
GC
162
Guggenheim Capital
Illinois
$17.4M 60,919 +3,463 +6%
Federated Hermes
163
Federated Hermes
Pennsylvania
$17.1M 60,140 -2,731 -4%
IMRF
164
Illinois Municipal Retirement Fund
Illinois
$17.1M 60,100 +3,708 +7%
SIM
165
Sprucegrove Investment Management
Ontario, Canada
$17.1M 60,012 -11,388 -16%
Balyasny Asset Management
166
Balyasny Asset Management
Illinois
$17.1M 59,988 -179,407 -75%
Asset Management One
167
Asset Management One
Japan
$17M 59,855 +1,498 +3%
Allspring Global Investments
168
Allspring Global Investments
North Carolina
$16.9M 59,336 -8,833 -13%
Hudson Bay Capital Management
169
Hudson Bay Capital Management
Connecticut
$16.4M 57,500 -51,806 -47%
Aviva
170
Aviva
United Kingdom
$16.3M 57,261 +24,493 +75%
ECM
171
ExodusPoint Capital Management
New York
$16.2M 56,852 -47,444 -45%
Connor, Clark & Lunn Investment Management (CC&L)
172
Connor, Clark & Lunn Investment Management (CC&L)
British Columbia, Canada
$15.4M 54,037 -53,231 -50%
O
173
Ossiam
France
$15.3M 53,646 +15,690 +41%
AIG
174
American International Group
New York
$15.1M 53,074 -1,420 -3%
CI
175
Clal Insurance
Israel
$15.1M 53,000 – –
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7
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