BIIB icon

Biogen
BIIB

Overview Fund Activity

1,098 hedge funds and large institutions have $43.4B invested in Biogen in 2021 Q2 according to their latest regulatory filings, with 134 funds opening new positions, 321 increasing their positions, 467 reducing their positions, and 110 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
1,098
Holders Change
+9
Holders Change %
+0.83%
% of All Funds
19.17%
Holding in Top 10
27
Holding in Top 10 Change
+14
Holding in Top 10 Change %
+107.69%
% of All Funds
0.47%
New
134
Increased
321
Reduced
467
Closed
110
Calls
$1.8B
Puts
$1.91B
Net Calls
-$111M
Net Calls Change
-$185M

Top Buyers

1
JPMorgan Chase & Co
JPMorgan Chase & Co
New York
$1.85B
2
Marshall Wace
Marshall Wace
United Kingdom
$226M
3
SC
Samlyn Capital
New York
$130M
4
Citadel Advisors
Citadel Advisors
Florida
$193M
5
HM
HealthCor Management
New York
$117M

Top Sellers

1
Renaissance Technologies
Renaissance Technologies
New York
$461M
2
Fidelity Investments
Fidelity Investments
Massachusetts
$468M
3
LSV Asset Management
LSV Asset Management
Illinois
$125M
4
Berkshire Hathaway
Berkshire Hathaway
Nebraska
$0
5
AQR Capital Management
AQR Capital Management
Connecticut
$178M
Name Holding Trade Value Shares
Change 		Shares
Change %
TLFA
1076
True Link Financial Advisors
California
$4K +$4K +11 New
MF
1077
Magnetar Financial
Illinois
$3.71K +$1.16K +3,342 +45%
APC
1078
Aspire Private Capital
North Carolina
$3K -$19.9K -53 -87%
AWM
1079
Avior Wealth Management
Nebraska
$3K – – –
FI
1080
FormulaFolio Investments
Michigan
$3K – – –
PFSC
1081
Peoples Financial Services Corp
Pennsylvania
$3K – – –
RAM
1082
Riggs Asset Management
Pennsylvania
$3K – – –
LF
1083
Lee Financial
Texas
$3K +$3K +8 New
FP
1084
Financial Perspectives
Minnesota
$2.77K -$772K -2,230 -100%
BBHC
1085
Brown Brothers Harriman & Co
New York
$2.04K -$144 -417 -7%
Lazard Asset Management
1086
Lazard Asset Management
New York
$2K -$14.3K -57 -88%
TFGT
1087
TS Financial Group (TSFG)
Illinois
$2K – – –
Kayne Anderson Rudnick Investment Management
1088
Kayne Anderson Rudnick Investment Management
California
$2K – – –
SWG
1089
Summit Wealth Group
Vermont
$2K – – –
BMD
1090
Better Money Decisions
New Mexico
$2K – – –
SB
1091
Strategic Blueprint
Georgia
$2K +$2K +5 New
FFG
1092
Ford Financial Group
California
$2K +$2K +8 New
RCG
1093
Rock Creek Group
District of Columbia
$1K -$2.33K -7 -70%
MAM
1094
McCarthy Asset Management
California
$1K – – –
FNBOSM
1095
First National Bank of South Miami
Florida
$1K +$1K +4 New
GFPC
1096
Global Financial Private Client
Florida
$698 – – –
ED
1097
Exane Derivatives
France
$352 -$3.17K -9 -90%
WA
1098
Waddell & Associates
Tennessee
$307 +$307 +887 New
Berkshire Hathaway
1099
Berkshire Hathaway
Nebraska
– -$180M -643,022 Closed
SAM
1100
Southeastern Asset Management
Tennessee
– -$169M -603,890 Closed
42 43
44
45 46