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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 %
GKIM
901
GW&K Investment Management
Massachusetts
$13K 50 +1 +2%
AF
902
Advisornet Financial
Minnesota
$12.9K 50 -59 -54%
ME
903
McIlrath & Eck
Washington
$12.9K 50 – –
TCM
904
Tradewinds Capital Management
Washington
$12.9K 50 – –
FFL
905
Financial Freedom LLC
Ohio
$12.9K 50 +50 New
FRA
906
Frank Rimerman Advisors
California
$12.7K 49 +49 New
RS
907
Rakuten Securities
Japan
$12.7K 49 +49 New
PB
908
Pinnacle Bancorp
Nebraska
$11.6K 45 – –
WOC
909
West Oak Capital
California
$11K 46 – –
UFF
910
USA Financial Formulas
Michigan
$10.9K 42 -8,504 -100%
TIM
911
Tortoise Investment Management
New York
$10.4K 40 – –
AIM
912
Anchor Investment Management
South Carolina
$10.4K 40 – –
CB
913
CNB Bank
Pennsylvania
$10.4K 40 – –
SIS
914
Sound Income Strategies
Florida
$10.4K 40 +40 New
LFG
915
Larson Financial Group
Missouri
$9.32K 36 – –
BGAI
916
Bruce G. Allen Investments
Colorado
$9.32K 36 +36 New
W
917
WealthCollab
Washington
$9.32K 36 +36 New
PCMC
918
Planning Capital Management Corporation
Pennsylvania
$9.32K 36 +36 New
CSC
919
Caldwell Sutter Capital
California
$8.8K 34 – –
QPBE
920
Quintet Private Bank (Europe)
Luxembourg
$8.78K 34 – –
AWM
921
AllSquare Wealth Management
New York
$8.54K 33 – –
DWS
922
Dynamic Wealth Strategies
California
$8.54K 33 +33 New
DI
923
DAGCO Inc
Ohio
$8.54K 33 +33 New
HFM
924
Hartford Financial Management
Connecticut
$8.02K 31 – –
TVWM
925
Tower View Wealth Management
Wisconsin
$8K 29 – –
35 36
37
38 39