646 hedge funds and large institutions have $47.5B invested in Biogen in 2013 Q2 according to their latest regulatory filings, with 646 funds opening new positions, increasing their positions, reducing their positions, and closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
646
Holders Change
+646
Holders Change %
% of All Funds
21.09%
Holding in Top 10
29
Holding in Top 10 Change
+29
Holding in Top 10 Change %
%
% of All Funds
0.95%
New
646
Increased
Reduced
Closed
Calls
$527M
Puts
$606M
Net Calls
-$78.9M
Net Calls Change
-$78.9M

Top Buyers

No buyers this quarter

Top Sellers

No sellers this quarter
Name Holding Trade Value Shares
Change
Shares
Change %
ILIM
151
Irish Life Investment Managers
Ireland
$21.4M +$21.4M +99,684 New
BSA
152
Braun Stacey Associates
New York
$21.4M +$21.4M +99,495 New
Korea Investment Corp
153
Korea Investment Corp
South Korea
$21.1M +$21.1M +98,100 New
Capital Fund Management (CFM)
154
Capital Fund Management (CFM)
France
$20.9M +$20.9M +97,336 New
VanEck Associates
155
VanEck Associates
New York
$20.8M +$20.8M +96,715 New
ProShare Advisors
156
ProShare Advisors
Maryland
$20.7M +$20.7M +96,200 New
PHS
157
PFM Health Sciences
California
$20.7M +$20.7M +96,017 New
FQ
158
First Quadrant
California
$20.5M +$20.5M +95,230 New
DFO
159
Duquesne Family Office
New York
$19.7M +$19.7M +91,500 New
Mackenzie Financial
160
Mackenzie Financial
Ontario, Canada
$19.2M +$19.2M +89,342 New
CCMH
161
Cornerstone Capital Management Holdings
New York
$18.8M +$18.8M +87,403 New
ERSOT
162
Employees Retirement System of Texas
Texas
$18.7M +$18.7M +87,000 New
SC
163
Samlyn Capital
New York
$18.6M +$18.6M +86,500 New
IGIM
164
I.G. Investment Management
Manitoba, Canada
$18.3M +$18.3M +85,038 New
PI
165
Putnam Investments
Massachusetts
$18.1M +$18.1M +84,328 New
KBC Group
166
KBC Group
Belgium
$18.1M +$18.1M +84,231 New
OI
167
Oakbrook Investments
Illinois
$17.8M +$17.8M +82,775 New
Public Sector Pension Investment Board (PSP Investments)
168
Public Sector Pension Investment Board (PSP Investments)
Quebec, Canada
$17.6M +$17.6M +81,690 New
TSU
169
TD Securities (USA)
New York
$17.4M +$17.4M +80,938 New
QI
170
QS Investors
New York
$17.2M +$17.2M +79,825 New
GF
171
Gabelli Funds
New York
$17M +$17M +79,000 New
Nisa Investment Advisors
172
Nisa Investment Advisors
Missouri
$16.9M +$16.9M +78,617 New
RCAMU
173
Rothschild & Co Asset Management US
Connecticut
$16.4M +$16.4M +75,977 New
RJA
174
Raymond James & Associates
Florida
$16.3M +$16.3M +75,742 New
FAF
175
Fjarde Ap-fonden
Sweden
$16.1M +$16.1M +74,962 New