X0306 4 2013-03-07 0 0000944480 GSE SYSTEMS INC GVP 0001449744 Bryant Quinn Jane Ellen GSE SYSTEMS, INC. 1332 LONDONTOWN BLVD. SYKESVILLE MD 21784 1 0 0 0 Employee Stock Option 2.15 2013-03-07 4 A 0 10000 0.00 A 2020-03-07 Common Stock 10000 10000 D Employee Stock Option 2.45 2019-05-17 Common Stock 10000 10000 D Employee Stock Option 2.06 2018-08-18 Common Stock 10000 10000 D Employee Stock Option 4.63 2017-05-21 Common Stock 10000 10000 D Employee Stock Option 6.00 2016-04-10 Common Stock 10000 10000 D Employee Stock Option 5.95 2018-10-23 Common Stock 5833 5833 D Exercisable as follows: 4,000 3/7/2014; 3,000 3/7/2015; 3,000 3/7/2016 Exercisable as follows: 4,000 5/17/2013; 3,000 5/17/2014; 3,000 5/17/2015 Exercisable as follows: 4,000 8/18/2012; 3,000 8/18/2013; 3,000 8/18/2014 Exercisable as follows: 4,000 5/21/2011; 3,000 5/21/2012; 3,000 5/21/2013 Exercisable as follows: 4,000 4/10/2010; 3,000 4/10/2011; 3,000 4/10/2012 Exercisable as follows: 833 10/23/2009; 833 10/23/2010; 833 10/23/2011; 834 10/23/2012; 833 10/23/2013; 833 10/23/2014; 834 10/23/2015 /s/ Jane Bryant Quinn 2013-03-13