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Biogen
BIIB

Overview Fund Activity

992 hedge funds and large institutions have $34.8B invested in Biogen in 2023 Q1 according to their latest regulatory filings, with 87 funds opening new positions, 340 increasing their positions, 361 reducing their positions, and 101 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
992
Holders Change
-32
Holders Change %
-3.13%
% of All Funds
15.88%
Holding in Top 10
19
Holding in Top 10 Change
-5
Holding in Top 10 Change %
-20.83%
% of All Funds
0.3%
New
87
Increased
340
Reduced
361
Closed
101
Calls
$744M
Puts
$674M
Net Calls
+$70.1M
Net Calls Change
+$286M

Top Buyers

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

Top Sellers

1
Marshall Wace
Marshall Wace
United Kingdom
$148M
2
Man Group
Man Group
United Kingdom
$67.1M
3
Point72 Asset Management
Point72 Asset Management
Connecticut
$193M
4
Two Sigma Advisers
Two Sigma Advisers
New York
$83.7M
5
D.E. Shaw & Co
D.E. Shaw & Co
New York
$371M
Name Holding Trade Value Shares
Change 		Shares
Change %
DnB Asset Management
176
DnB Asset Management
Norway
$16.4M +$4.58M +16,467 +39%
Asset Management One
177
Asset Management One
Japan
$16.2M +$7.51K +27 +0%
GC
178
Guggenheim Capital
Illinois
$16M -$579K -2,081 -3%
T
179
TOBAM
France
$15.8M -$6.03M -21,678 -28%
IMRF
180
Illinois Municipal Retirement Fund
Illinois
$15.7M -$2.2M -7,916 -12%
BM
181
Bridger Management
New York
$15.6M +$2.36M +8,500 +18%
AIG
182
American International Group
New York
$15.2M +$47.8K +172 +0.3%
GGHC
183
Gilder Gagnon Howe & Co
New York
$15.1M -$592K -2,129 -4%
CI
184
Clal Insurance
Israel
$14.7M – – –
Baird Financial Group
185
Baird Financial Group
Wisconsin
$14.7M -$506K -1,821 -3%
AGA
186
Altrinsic Global Advisors
Connecticut
$14.4M +$3.46M +12,449 +32%
TAF
187
Tredje AP-fonden
Sweden
$14M +$11.5M +41,286 +454%
Jane Street
188
Jane Street
New York
$13.9M -$43.8M -157,671 -76%
SOADOR
189
State of Alaska Department of Revenue
Alaska
$13.5M +$67.6K +243 +0.5%
RPAM
190
Rhenman & Partners Asset Management
Sweden
$13.1M +$4.81M +17,500 +58%
OPERF
191
Oregon Public Employees Retirement Fund
Oregon
$13M -$225K -811 -2%
Acadian Asset Management
192
Acadian Asset Management
Massachusetts
$12.7M -$3.88M -13,962 -23%
ATN
193
AMF Tjänstepension
Sweden
$12.7M – – –
Mackenzie Financial
194
Mackenzie Financial
Ontario, Canada
$12.7M -$132K -474 -1%
BPC
195
Banque Pictet & Cie
Switzerland
$12.6M -$2.38M -8,562 -16%
GC
196
Grimes & Company
Massachusetts
$12.4M -$430K -1,547 -3%
State of Tennessee, Department of Treasury
197
State of Tennessee, Department of Treasury
Tennessee
$12M +$1.94M +6,964 +19%
WMSA
198
Weiss Multi-Strategy Advisers
New York
$12M +$3.84M +13,806 +47%
LPL Financial
199
LPL Financial
California
$11.8M -$6.12K -22 -0.1%
SOMRS
200
State of Michigan Retirement System
Michigan
$11.8M +$111K +400 +1%
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8
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