X0204 3 2011-08-02 0 0000728331 SUTRON CORP STRN 0001530535 Raval Ashish R. 13124 WESTBROOK DRIVE FAIRFAX VA 22030 1 1 0 0 Sr VP Option - Sutron Corp Common Stock .68 2003-01-06 2013-01-05 Common Stock 25000 D Option - Sutron Corp Common Stock 6.9 2007-02-27 2017-02-26 Common Stock 50000 D Option - Sutron Corp Common Stock 6.47 2010-05-19 2020-05-18 Common Stock 25000 D /s/ Ashish R. Raval 2011-09-19