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Biogen
BIIB

Overview Fund Activity

946 hedge funds and large institutions have $49.3B invested in Biogen in 2016 Q1 according to their latest regulatory filings, with 95 funds opening new positions, 363 increasing their positions, 350 reducing their positions, and 103 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
946
Holders Change
-22
Holders Change %
-2.27%
% of All Funds
25.25%
Holding in Top 10
32
Holding in Top 10 Change
-5
Holding in Top 10 Change %
-13.51%
% of All Funds
0.85%
New
95
Increased
363
Reduced
350
Closed
103
Calls
$1.05B
Puts
$1.13B
Net Calls
-$73.9M
Net Calls Change
+$323M

Top Buyers

1
T. Rowe Price Associates
T. Rowe Price Associates
Maryland
+$458M
2
Fidelity Investments
Fidelity Investments
Massachusetts
+$148M
3
Primecap Management
Primecap Management
California
+$114M
4
VAM
Visium Asset Management
New York
+$99.3M
5
Invesco
Invesco
Georgia
+$89.1M

Top Sellers

1
Wellington Management Group
Wellington Management Group
Massachusetts
-$162M
2
State Street
State Street
Massachusetts
-$139M
3
AQR Capital Management
AQR Capital Management
Connecticut
-$137M
4
JPMorgan Chase & Co
JPMorgan Chase & Co
New York
-$135M
5
BFA
BlackRock Fund Advisors
California
-$99.9M
Name Holding Trade Value Shares
Change 		Shares
Change %
MGM
951
Miura Global Management
New York
– -$38.3M -125,000 Closed
SAM
952
Senzar Asset Management
New York
– -$26.4M -86,300 Closed
HCM
953
Highbridge Capital Management
New York
– -$20.4M -66,479 Closed
CI Investments Inc
954
CI Investments Inc
Ontario, Canada
– -$18.8M -61,500 Closed
BJCM
955
Blue Jay Capital Management
California
– -$17.8M -58,161 Closed
HM
956
HealthCor Management
New York
– -$14.4M -47,090 Closed
CC
957
Carlson Capital
Texas
– -$13.5M -44,048 Closed
IA
958
Icon Advisers
Colorado
– -$13.1M -42,800 Closed
ZDA
959
Zweig-DiMenna Associates
New York
– -$9.19M -30,000 Closed
AI
960
Analytic Investors
California
– -$7.67M -25,025 Closed
GTC
961
Ghost Tree Capital
New York
– -$7.66M -25,000 Closed
T
962
TOBAM
France
– -$7.34M -23,970 Closed
DAM
963
Deltec Asset Management
New York
– -$6.48M -21,155 Closed
CCI
964
Columbus Circle Investors
– -$5.11M -16,692 Closed
WG
965
Winton Group
United Kingdom
– -$4.98M -16,245 Closed
RBA
966
Richard Bernstein Advisors
New York
– -$4.14M -13,496 Closed
MCM
967
Mazama Capital Management
Oregon
– -$4.1M -13,383 Closed
OAC
968
OMERS Administration Corp
Ontario, Canada
– -$3.95M -12,900 Closed
SCM
969
Sitrin Capital Management
California
– -$3.62M -12,874 Closed
NC
970
Nicholas Company
Wisconsin
– -$3.07M -10,010 Closed
GA
971
Geneva Advisors
Illinois
– -$2.87M -9,365 Closed
WA
972
Whitebox Advisors
Minnesota
– -$2.6M -8,492 Closed
RIM
973
Reliant Investment Management
Tennessee
– -$2.45M -8,000 Closed
CC
974
Curian Capital
Colorado
– -$2.43M -7,921 Closed
AP
975
AHL Partners
United Kingdom
– -$2.39M -7,803 Closed
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