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Biogen
BIIB

Overview Fund Activity

656 hedge funds and large institutions have $52.6B invested in Biogen in 2013 Q3 according to their latest regulatory filings, with 73 funds opening new positions, 227 increasing their positions, 253 reducing their positions, and 54 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
656
Holders Change
+10
Holders Change %
+1.55%
% of All Funds
21.28%
Holding in Top 10
24
Holding in Top 10 Change
-5
Holding in Top 10 Change %
-17.24%
% of All Funds
0.78%
New
73
Increased
227
Reduced
253
Closed
54
Calls
$619M
Puts
$689M
Net Calls
-$69.9M
Net Calls Change
+$9.03M

Top Buyers

1
Fidelity Investments
Fidelity Investments
Massachusetts
$6.17B
2
Deutsche Bank
Deutsche Bank
Germany
$364M
3
O
OppenheimerFunds
New York
$271M
4
Invesco
Invesco
Georgia
$903M
5
BFA
BlackRock Fund Advisors
California
$874M

Top Sellers

1
MCM
Marsico Capital Management
Colorado
$693M
2
JPMorgan Chase & Co
JPMorgan Chase & Co
New York
$2.11B
3
Viking Global Investors
Viking Global Investors
Connecticut
$69.9M
4
AllianceBernstein
AllianceBernstein
Tennessee
$571M
5
Winslow Capital Management
Winslow Capital Management
Minnesota
$631M
Name Holding Trade Value Shares
Change 		Shares
Change %
SOMRS
151
State of Michigan Retirement System
Michigan
$23.3M -$35.6M -147,700 -60%
ProShare Advisors
152
ProShare Advisors
Maryland
$22.8M -$391K -1,625 -2%
Mackenzie Financial
153
Mackenzie Financial
Ontario, Canada
$22.5M +$979K +4,066 +5%
FQ
154
First Quadrant
California
$22.5M -$462K -1,920 -2%
Korea Investment Corp
155
Korea Investment Corp
South Korea
$22.5M -$1.16M -4,800 -5%
MSA
156
Mason Street Advisors
Wisconsin
$22.1M -$9.23M -38,332 -30%
DFO
157
Duquesne Family Office
New York
$22M – – –
BSA
158
Braun Stacey Associates
New York
$21.9M -$2.08M -8,625 -9%
SC
159
Samlyn Capital
New York
$21.6M +$745K +3,096 +4%
Loomis, Sayles & Company
160
Loomis, Sayles & Company
Massachusetts
$21.5M +$179K +742 +0.8%
Credit Agricole
161
Credit Agricole
France
$21.1M +$21.1M +87,438 New
AC
162
Ascend Capital
California
$21.1M +$21.1M +87,440 New
RJA
163
Raymond James & Associates
Florida
$20.4M +$2.2M +9,119 +12%
TSU
164
TD Securities (USA)
New York
$19.6M +$105K +438 +0.5%
OI
165
Oakbrook Investments
Illinois
$19.2M -$758K -3,150 -4%
Public Sector Pension Investment Board (PSP Investments)
166
Public Sector Pension Investment Board (PSP Investments)
Quebec, Canada
$19.1M -$602K -2,500 -3%
Nisa Investment Advisors
167
Nisa Investment Advisors
Missouri
$18.9M -$55.1K -229 -0.3%
Two Sigma Advisers
168
Two Sigma Advisers
New York
$18.5M +$13.3M +55,100 +255%
ERSOT
169
Employees Retirement System of Texas
Texas
$18.4M -$2.52M -10,470 -12%
AIMCA
170
Alberta Investment Management Corp (AIMCo)
Alberta, Canada
$18.1M +$18.1M +75,200 New
HSA
171
Hussman Strategic Advisors
Maryland
$18.1M +$6.02M +25,000 +50%
PNC Financial Services Group
172
PNC Financial Services Group
Pennsylvania
$17.8M +$1.26M +5,214 +8%
AT
173
Arvest Trust
Oklahoma
$17.7M -$18M -74,799 -50%
GF
174
Gabelli Funds
New York
$17.6M -$1.47M -6,100 -8%
RGA
175
Red Granite Advisors
Wisconsin
$17.4M -$271K -1,124 -2%
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