776 hedge funds and large institutions have $66.1B invested in Biogen in 2014 Q1 according to their latest regulatory filings, with 95 funds opening new positions, 284 increasing their positions, 294 reducing their positions, and 46 closing their positions.

Holders
776
Holders Change
+38
Holders Change %
+5.15%
% of All Funds
22.43%
Holding in Top 10
33
Holding in Top 10 Change
-4
Holding in Top 10 Change %
-10.81%
% of All Funds
0.95%
New
95
Increased
284
Reduced
294
Closed
46
Calls
$893M
Puts
$1.2B
Net Calls
-$307M
Net Calls Change
-$449M
Name Market Value Shares Shares
Change
Shares
Change %
MSA
151
Mason Street Advisors
Wisconsin
$35.4M 115,859 +13,348 +13%
Aviva
152
Aviva
United Kingdom
$35.3M 115,565 -917 -0.8%
Korea Investment Corp
153
Korea Investment Corp
South Korea
$34.9M 114,200 +17,200 +18%
Mackenzie Financial
154
Mackenzie Financial
Ontario, Canada
$33.9M 110,825 +10,210 +10%
Comerica Bank
155
Comerica Bank
Texas
$33.9M 110,770 +2,163 +2%
KBC Group
156
KBC Group
Belgium
$33.8M 110,356 -3,960 -3%
Fidelity International
157
Fidelity International
Bermuda
$32.6M 106,552 +52,634 +98%
AIG
158
American International Group
New York
$32.6M 106,475 +952 +0.9%
TPSF
159
Texas Permanent School Fund
Texas
$31.7M 103,739 -5,635 -5%
WCM
160
Winton Capital Management
United Kingdom
$30.8M 100,854 +21,319 +27%
HI
161
HBK Investments
Texas
$30.2M 98,600 +8,200 +9%
RJA
162
Raymond James & Associates
Florida
$29.7M 96,997 +2,902 +3%
SOMRS
163
State of Michigan Retirement System
Michigan
$29.5M 96,501 +500 +0.5%
Nisa Investment Advisors
164
Nisa Investment Advisors
Missouri
$29.3M 95,638 +17,550 +22%
Loomis, Sayles & Company
165
Loomis, Sayles & Company
Massachusetts
$29.1M 95,050 +3,415 +4%
ERSOT
166
Employees Retirement System of Texas
Texas
$28.8M 94,000 +13,000 +16%
AIMCA
167
Alberta Investment Management Corp (AIMCo)
Alberta, Canada
$27.8M 91,000
RG
168
Renaissance Group
Kentucky
$27.6M 90,275 -18,824 -17%
CGI
169
CI Global Investments
California
$27.5M 90,000 +90,000 New
GP
170
GLG Partners
United Kingdom
$26.9M 88,054 +88,054 New
Public Sector Pension Investment Board (PSP Investments)
171
Public Sector Pension Investment Board (PSP Investments)
Quebec, Canada
$26.5M 86,590 -1,200 -1%
WBC
172
Westpac Banking Corp
Australia
$26.2M 85,776 +17,930 +26%
Zurich Cantonal Bank
173
Zurich Cantonal Bank
Switzerland
$24.7M 80,854 -889 -1%
PG
174
PEAK6 Group
Illinois
$24.6M 80,455 +53,943 +203%
PNC Financial Services Group
175
PNC Financial Services Group
Pennsylvania
$24.5M 80,221 +2,100 +3%