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Biogen
BIIB

Overview Fund Activity

1,013 hedge funds and large institutions have $59B invested in Biogen in 2017 Q3 according to their latest regulatory filings, with 99 funds opening new positions, 380 increasing their positions, 355 reducing their positions, and 68 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
1,013
Holders Change
+22
Holders Change %
+2.22%
% of All Funds
25.29%
Holding in Top 10
38
Holding in Top 10 Change
+15
Holding in Top 10 Change %
+65.22%
% of All Funds
0.95%
New
99
Increased
380
Reduced
355
Closed
68
Calls
$974M
Puts
$1.24B
Net Calls
-$269M
Net Calls Change
-$87M

Top Buyers

1
T. Rowe Price Associates
T. Rowe Price Associates
Maryland
$3.34B
2
Fidelity Investments
Fidelity Investments
Massachusetts
$2.24B
3
Ameriprise
Ameriprise
Minnesota
$723M
4
AQR Capital Management
AQR Capital Management
Connecticut
$585M
5
Bank of New York Mellon
Bank of New York Mellon
New York
$728M

Top Sellers

1
BlackRock
BlackRock
New York
$5.31B
2
D.E. Shaw & Co
D.E. Shaw & Co
New York
$191M
3
Renaissance Technologies
Renaissance Technologies
New York
$37.6M
4
SIG
Senator Investment Group
New York
$0
5
Citadel Advisors
Citadel Advisors
Florida
$208M
Name Holding Trade Value Shares
Change 		Shares
Change %
Twin Tree Management
1026
Twin Tree Management
Texas
– -$10.9M -40,056 Closed
Capital Fund Management (CFM)
1027
Capital Fund Management (CFM)
France
– -$10.7M -39,350 Closed
FHAM
1028
Folger Hill Asset Management
New York
– -$8.17M -30,100 Closed
SI
1029
Stephens Inc
Arkansas
– -$5.09M -18,740 Closed
ACM
1030
Advent Capital Management
New York
– -$4.21M -15,500 Closed
MC
1031
Maverick Capital
Texas
– -$4.13M -15,230 Closed
TF
1032
TIAA FSB
Florida
– -$3.69M -13,606 Closed
ARTA
1033
A.R.T. Advisors
New York
– -$3.15M -11,600 Closed
Capstone Investment Advisors
1034
Capstone Investment Advisors
New York
– -$3.09M -11,400 Closed
AI
1035
ArchPoint Investors
Florida
– -$3.05M -11,232 Closed
FP
1036
FDO Partners
Massachusetts
– -$2.81M -10,351 Closed
NIT
1037
NumerixS Investment Technologies
British Columbia, Canada
– -$2.75M -10,142 Closed
HSA
1038
Hussman Strategic Advisors
Maryland
– -$2.71M -10,000 Closed
ST
1039
Spot Trading
Illinois
– -$2.5M -9,193 Closed
HCMT
1040
Highland Capital Management (Texas)
Texas
– -$2.45M -9,025 Closed
AC
1041
Allstate Corporation
Illinois
– -$2.14M -7,878 Closed
LP
1042
LMR Partners
United Kingdom
– -$1.66M -6,099 Closed
SEC
1043
Seven Eight Capital
New York
– -$1.33M -4,900 Closed
SG
1044
StoneX Group
New York
– -$1.22M -4,489 Closed
HH
1045
Hilltop Holdings
Texas
– -$1.1M -4,067 Closed
PHS
1046
PFM Health Sciences
California
– -$1.1M -4,046 Closed
BCM
1047
Bayesian Capital Management
New York
– -$1.09M -4,000 Closed
Group One Trading
1048
Group One Trading
Illinois
– -$1.08M -3,969 Closed
KPF
1049
K2 Principal Fund
Ontario, Canada
– -$977K -3,600 Closed
CCIA
1050
Campbell & Co Investment Adviser
Maryland
– -$947K -3,490 Closed
40 41
42
43 44