Joanne M. Maguire (57), Executive Vice President – Space Systems Kenneth R. Possenriede (51), Vice President and Treasurer Robert J. Stevens (60), Chairman and Chief Executive Officer Bruce L. Tanner (52), Executive Vice President and Chief Financial Officer 18 Ms. Maguire has served as Executive Vice President – Space Systems since July 2006. She previously served as Vice President and Deputy of Lockheed Martin Space Systems Company from July 2003 to June 2006. Mr. Possenriede has served as Vice President and Treasurer since July 2011. He previously served as Vice President of Finance and Business Operations for Electronic Systems from July 2008 to June 2011 and as Vice President of Finance and Business Operations for Space Systems from September 2007 to June 2008. Mr. Stevens has served as Chairman of the Board since April 2005 and Chief Executive Officer since August 2004, and previously served as President from October 2000 to December 2009. Mr. Tanner has served as Executive Vice President and Chief Financial Officer since September 2007. He previously served as Vice President of Finance and Business Operations for Aeronautics from April 2006 to August 2007, and Vice President of Finance and Business Operations for Electronic Systems from May 2002 to March 2006.