May 20, 2015
$31,000,000
PIPEPreferred StockSole Placement Agent
May 6, 2015
$344,100,000
Follow-on OfferingCommon StockCo-Manager
April 24, 2015
$34,500,000
January 30, 2015
$5,000,000
Follow-on OfferingCommon StockSole Underwriter
December 31, 2014
$27,000,000
PIPEConvertible DebtLead Placement Agent
December 10, 2014
$120,000,000
Notes OfferingCo-Manager
June 6, 2014
$17,250,000
Common Stock OfferingCo-Manager
February 12, 2014
$12,000,000
Common Stock OfferingSole Placement Agent
January 24, 2014
$151,800,000
December 31, 2013
December 12, 2013
$230,000,000
Convertible Dept Co-Placement Agent
December 11, 2013
$69,100,000
March 26, 2013
$21,000,000
Common Stock Offering Joint Book-Runner
March 22, 2013
$411,000,000
March 15, 2013
$201,000,000
Convertible Senior NotesCo-Manager
August 18, 2011
$84,500,000
Common Stock Offering Co-Manager
January 11, 2011
December 16, 2010
$56,100,000