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 %
TAM
351
Tocqueville Asset Management
New York
$1.94M +$1.94M +9,007 New
DCM
352
Dupont Capital Management
Delaware
$1.92M +$1.92M +8,930 New
OSAM
353
O'Shaughnessy Asset Management
Connecticut
$1.87M +$1.87M +8,675 New
CI
354
Constellation Investments
Ohio
$1.86M +$1.86M +8,645 New
HK
355
Horizon Kinetics
New York
$1.86M +$1.86M +8,626 New
DADC
356
D.A. Davidson & Co
Montana
$1.83M +$1.83M +8,535 New
MVP
357
Missouri Valley Partners
Missouri
$1.82M +$1.82M +8,436 New
LWCFA
358
Loring Wolcott & Coolidge Fiduciary Advisors
Massachusetts
$1.79M +$1.79M +8,299 New
MSU
359
Maple Securities USA
New Jersey
$1.78M +$1.78M +8,283 New
LPT
360
Legacy Private Trust
Wisconsin
$1.77M +$1.77M +8,220 New
NB
361
Norinchukin Bank
Japan
$1.77M +$1.77M +8,221 New
WTNA
362
Wilmington Trust National Association
Delaware
$1.73M +$1.73M +8,055 New
RIA
363
Rushmore Investment Advisors
Texas
$1.71M +$1.71M +7,958 New
MYLI
364
Meiji Yasuda Life Insurance
Japan
$1.68M +$1.68M +7,814 New
KCG
365
Knight Capital Group
$1.64M +$1.64M +7,602 New
RBA
366
Richard Bernstein Advisors
New York
$1.63M +$1.63M +7,555 New
Teacher Retirement System of Texas
367
Teacher Retirement System of Texas
Texas
$1.62M +$1.62M +7,545 New
AF
368
Arrow Financial
New York
$1.61M +$1.61M +7,500 New
CI
369
Conning Inc
Connecticut
$1.61M +$1.61M +7,456 New
QIM
370
Quantitative Investment Management
Virginia
$1.59M +$1.59M +7,400 New
RNS
371
Robert N. Shapiro
$1.59M +$1.59M +7,390 New
TNBTD
372
Trustmark National Bank Trust Department
Mississippi
$1.57M +$1.57M +7,280 New
TCM
373
Tributary Capital Management
Nebraska
$1.55M +$1.55M +7,200 New
Daiwa Securities Group
374
Daiwa Securities Group
Japan
$1.53M +$1.53M +7,130 New
CTC
375
Central Trust Company
Missouri
$1.53M +$1.53M +7,112 New