Ryan Dofflemeyer, Portfolio Manager of the Sponsor since January 3, 2011, a registered associated person and an NFA associate member of the Sponsor since October 26, 2010. In these roles, Mr. Dofflemeyer’s responsibilities include day-to-day portfolio management of the Commodity Index Funds, the VIX Funds and certain other series of the Trust.

Mr. Dofflemeyer has been registered as an associated person of PFA since December 5, 2012. Mr. Dofflemeyer also serves as a Portfolio Manager of PFA since August 2007 and was a Portfolio Analyst between October 2003 and August 2007. In addition, Mr. Dofflemeyer also serves as a Portfolio Manager for Horizon BetaPro Funds (investment funds) since May 2008 and served as a Portfolio Manager of PSA from March 2010 through September 2013.

Mr. Dofflemeyer worked as a Research Assistant for the Investment Company Institute (investment funds trade organization) from September 2001 to August 2003.