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Biogen
BIIB

Overview Fund Activity

990 hedge funds and large institutions have $33.5B invested in Biogen in 2023 Q4 according to their latest regulatory filings, with 132 funds opening new positions, 283 increasing their positions, 372 reducing their positions, and 81 closing their positions.

Holders
990
Holders Change
+35
Holders Change %
+3.66%
% of All Funds
14.52%
Holding in Top 10
10
Holding in Top 10 Change
-4
Holding in Top 10 Change %
-28.57%
% of All Funds
0.15%
New
132
Increased
283
Reduced
372
Closed
81
Calls
$643M
Puts
$499M
Net Calls
+$144M
Net Calls Change
+$86.4M

Top Buyers

1
Vanguard Group
1
Vanguard Group
Pennsylvania
$3.73B
2
Morgan Stanley
2
Morgan Stanley
New York
$817M
3
Invesco
3
Invesco
Georgia
$470M
4
T. Rowe Price Investment Management
4
T. Rowe Price Investment Management
Maryland
$1.39B
5
Fidelity International
5
Fidelity International
Bermuda
$170M

Top Sellers

1
SC
1
Samlyn Capital
New York
$0
2
Fidelity Investments
2
Fidelity Investments
Massachusetts
$259M
3
Renaissance Technologies
3
Renaissance Technologies
New York
$196M
4
AQR Capital Management
4
AQR Capital Management
Connecticut
$9.61M
5
D.E. Shaw & Co
5
D.E. Shaw & Co
New York
$6.19M
Name Market Value Shares Shares
Change 		Shares
Change %
D.E. Shaw & Co
226
D.E. Shaw & Co
New York
$6.19M 23,935 -254,903 -91%
NYLIM
227
New York Life Investment Management
New York
$6.03M 23,318 -8,777 -27%
Vontobel Holding
228
Vontobel Holding
Switzerland
$5.93M 22,930 +8,499 +59%
Commonwealth Equity Services
229
Commonwealth Equity Services
Massachusetts
$5.85M 22,612 -804 -3%
Neuberger Berman Group
230
Neuberger Berman Group
New York
$5.79M 22,393 +2,266 +11%
AAM
231
Auxier Asset Management
Oregon
$5.6M 21,658 -102 -0.5%
Mariner
232
Mariner
Kansas
$5.57M 21,529 +1,868 +10%
Public Employees Retirement Association of Colorado
233
Public Employees Retirement Association of Colorado
Colorado
$5.55M 21,450 -619 -3%
SCM
234
Shelton Capital Management
Colorado
$5.48M 21,189 +538 +3%
Janus Henderson Group
235
Janus Henderson Group
United Kingdom
$5.48M 21,174 +86 +0.4%
SPPAM
236
Summit Partners Public Asset Management
Massachusetts
$5.39M 20,830 +20,830 New
IMCOOI
237
Investment Management Corp of Ontario (IMCO)
Canada
$5.32M 20,557 +20,557 New
Daiwa Securities Group
238
Daiwa Securities Group
Japan
$5.3M 20,479 -4,835 -19%
OAM
239
Ostrum Asset Management
France
$5.26M 20,310 +9,112 +81%
LSERS
240
Louisiana State Employees Retirement System
Louisiana
$5.25M 20,300 -200 -1%
ECM
241
Exchange Capital Management
Michigan
$5.25M 20,298 +920 +5%
US Bancorp
242
US Bancorp
Minnesota
$5.23M 20,224 -680 -3%
PI
243
PineBridge Investments
New York
$5.2M 20,104 +6,838 +52%
X
244
Xponance
Pennsylvania
$5.19M 20,047 -1,246 -6%
SCM
245
Silverarc Capital Management
Massachusetts
$5.18M 20,000 -8,069 -29%
AAIM
246
American Assets Investment Management
California
$5.18M 20,000 – –
IIM
247
INTECH Investment Management
Florida
$5.16M 19,922 -10,007 -33%
PA
248
Profund Advisors
Maryland
$5.07M 19,612 +2,571 +15%
NAM
249
Nissay Asset Management
Japan
$5.03M 19,444 +1,763 +10%
GCA
250
Greenwood Capital Associates
South Carolina
$4.95M 19,145 +65 +0.3%
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