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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 %
Point72 Asset Management
1001
Point72 Asset Management
Connecticut
– – -48,100 Closed
JAM
1002
Jupiter Asset Management
United Kingdom
– – -41,279 Closed
BM
1003
Bridger Management
New York
– – -34,261 Closed
Parallax Volatility Advisers
1004
Parallax Volatility Advisers
California
– – -24,775 Closed
OMC
1005
Old Mission Capital
Illinois
– – -19,823 Closed
LP
1006
LMR Partners
United Kingdom
– – -15,294 Closed
AM
1007
AGF Management
Ontario, Canada
– – -11,137 Closed
TCM
1008
Teza Capital Management
Illinois
– – -10,664 Closed
LA
1009
LBP AM
France
– – -6,795 Closed
Qube Research & Technologies (QRT)
1010
Qube Research & Technologies (QRT)
United Kingdom
– – -6,328 Closed
CS
1011
Clear Street
New York
– – -5,000 Closed
EC
1012
Estate Counselors
Wisconsin
– – -4,590 Closed
EP
1013
Edgestream Partners
New Jersey
– – -4,386 Closed
EIM
1014
Essex Investment Management
Massachusetts
– – -4,235 Closed
PRC
1015
Pearl River Capital
Michigan
– – -4,098 Closed
AC
1016
Arjuna Capital
North Carolina
– – -3,772 Closed
SWP
1017
Strategic Wealth Partners
Ohio
– – -3,376 Closed
WHG
1018
Westwood Holdings Group
Texas
– – -2,683 Closed
PCA
1019
Pallas Capital Advisors
Massachusetts
– – -2,677 Closed
KI
1020
Kapitalo Investimentos
Brazil
– – -2,379 Closed
LAS
1021
Lloyd Advisory Services
Georgia
– – -2,146 Closed
CCIA
1022
Campbell & Co Investment Adviser
Maryland
– – -2,093 Closed
FMAEN1
1023
Fund Management at Engine No 1
California
– – -2,071 Closed
WG
1024
Winton Group
United Kingdom
– – -2,063 Closed
CC
1025
Centiva Capital
New York
– – -2,013 Closed
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41
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