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923 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, 407 increasing their positions, 283 reducing their positions, and 150 closing their positions.

New
Increased
Maintained
Reduced
Closed

44% more repeat investments, than reductions

Existing positions increased: 407 | Existing positions reduced: 283

5% less funds holding

Funds holding: 973923 (-50)

29% less funds holding in top 10

Funds holding in top 10: 5237 (-15)

30% less first-time investments, than exits

New positions opened: 105 | Existing positions closed: 150

32% less capital invested

Capital invested by funds: $85.3B → $58.4B (-$26.9B)

32% less call options, than puts

Call options by funds: $1.22B | Put options by funds: $1.8B

Holders
923
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
407
Reduced
283
Closed
150
Calls
$1.22B
Puts
$1.8B
Net Calls
-$579M
Net Calls Change
-$71.2M
Name Holding Trade Value Shares
Change
Change in
Stake
Winslow Capital Management
926
Winslow Capital Management
Minnesota
-$520M -1,288,414 Closed
MCM
927
Marsico Capital Management
Colorado
-$518M -1,282,348 Closed
DCP
928
DSM Capital Partners
Florida
-$346M -856,614 Closed
IC
929
Institutional Capital
Illinois
-$257M -636,517 Closed
Viking Global Investors
930
Viking Global Investors
Connecticut
-$207M -513,444 Closed
PC
931
PointState Capital
New York
-$56.2M -139,200 Closed
HIM
932
Hermes Investment Management
United Kingdom
-$54.3M -134,488 Closed
OAM
933
Origin Asset Management
United Kingdom
-$32.5M -80,392 Closed
RG
934
Redmile Group
California
-$32M -79,118 Closed
CCP
935
Clough Capital Partners
Massachusetts
-$31.7M -78,386 Closed
PMAM
936
Picton Mahoney Asset Management
Ontario, Canada
-$31.3M -77,600 Closed
Lord, Abbett & Co
937
Lord, Abbett & Co
New Jersey
-$25.2M -62,331 Closed
CC
938
Carlson Capital
Texas
-$20.9M -51,620 Closed
RPAM
939
Rhenman & Partners Asset Management
Sweden
-$20.3M -50,291 Closed
TCP
940
Tourbillon Capital Partners
New York
-$20.2M -50,000 Closed
JCM
941
Jag Capital Management
Missouri
-$16.7M -43,968 Closed
RI
942
Redwood Investments
Massachusetts
-$16.9M -41,763 Closed
CAM
943
Centre Asset Management
New York
-$15.5M -38,490 Closed
HM
944
HealthCor Management
New York
-$13M -32,140 Closed
GTC
945
Ghost Tree Capital
New York
-$12.1M -30,000 Closed
RIM
946
RS Investment Management
California
-$11.9M -29,507 Closed
FAB
947
First American Bank
Illinois
-$10.2M -25,281 Closed
CIP
948
Convergence Investment Partners
Florida
-$9.78M -24,201 Closed
ACPU
949
Arrowgrass Capital Partners (US)
Delaware
-$9.09M -22,500 Closed
DBG
950
De Burlo Group
Massachusetts
-$9.01M -22,315 Closed