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Biogen
BIIB

Overview Fund Activity

922 hedge funds and large institutions have $58.4B invested in Biogen in 2015 Q3 according to their latest regulatory filings, with 105 funds opening new positions, 406 increasing their positions, 283 reducing their positions, and 150 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
922
Holders Change
-50
Holders Change %
-5.14%
% of All Funds
25.77%
Holding in Top 10
37
Holding in Top 10 Change
-15
Holding in Top 10 Change %
-28.85%
% of All Funds
1.03%
New
105
Increased
406
Reduced
283
Closed
150
Calls
$1.22B
Puts
$1.8B
Net Calls
-$579M
Net Calls Change
-$71.2M

Top Buyers

1
Ameriprise
Ameriprise
Minnesota
$1.11B
2
SCM
Steadfast Capital Management
New York
$278M
3
Bank of America
Bank of America
North Carolina
$415M
4
Wellington Management Group
Wellington Management Group
Massachusetts
$1.65B
5
BA
BlackRock Advisors
Delaware
$455M

Top Sellers

1
Fidelity Investments
Fidelity Investments
Massachusetts
$4.83B
2
T. Rowe Price Associates
T. Rowe Price Associates
Maryland
$1.76B
3
Winslow Capital Management
Winslow Capital Management
Minnesota
$0
4
MCM
Marsico Capital Management
Colorado
$0
5
DCP
DSM Capital Partners
Florida
$0
Name Holding Trade Value Shares
Change 		Shares
Change %
MCM
926
Marsico Capital Management
Colorado
– -$518M -1,282,348 Closed
DCP
927
DSM Capital Partners
Florida
– -$346M -856,614 Closed
IC
928
Institutional Capital
Illinois
– -$257M -636,517 Closed
Viking Global Investors
929
Viking Global Investors
Connecticut
– -$207M -513,444 Closed
PC
930
PointState Capital
New York
– -$56.2M -139,200 Closed
HIM
931
Hermes Investment Management
United Kingdom
– -$54.3M -134,488 Closed
OAM
932
Origin Asset Management
United Kingdom
– -$32.5M -80,392 Closed
RG
933
Redmile Group
California
– -$32M -79,118 Closed
CCP
934
Clough Capital Partners
Massachusetts
– -$31.7M -78,386 Closed
PMAM
935
Picton Mahoney Asset Management
Ontario, Canada
– -$31.3M -77,600 Closed
Lord, Abbett & Co
936
Lord, Abbett & Co
New Jersey
– -$25.2M -62,331 Closed
CC
937
Carlson Capital
Texas
– -$20.9M -51,620 Closed
RPAM
938
Rhenman & Partners Asset Management
Sweden
– -$20.3M -50,291 Closed
TCP
939
Tourbillon Capital Partners
New York
– -$20.2M -50,000 Closed
JCM
940
Jag Capital Management
Missouri
– -$16.7M -43,968 Closed
RI
941
Redwood Investments
Massachusetts
– -$16.9M -41,763 Closed
CAM
942
Centre Asset Management
New York
– -$15.5M -38,490 Closed
HM
943
HealthCor Management
New York
– -$13M -32,140 Closed
GTC
944
Ghost Tree Capital
New York
– -$12.1M -30,000 Closed
RIM
945
RS Investment Management
California
– -$11.9M -29,507 Closed
FAB
946
First American Bank
Illinois
– -$10.2M -25,281 Closed
CIP
947
Convergence Investment Partners
Florida
– -$9.78M -24,201 Closed
ACPU
948
Arrowgrass Capital Partners (US)
Delaware
– -$9.09M -22,500 Closed
DBG
949
De Burlo Group
Massachusetts
– -$9.01M -22,315 Closed
AAMU
950
Amundi Asset Management US
Massachusetts
– -$7.42M -18,360 Closed
36 37
38
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