X0306 4 2013-05-28 0 0001409375 ORION ENERGY SYSTEMS, INC. OESX 0001440459 Jensen Scott R 2210 WOODLAND DRIVE MANITOWOC WI 54220 0 1 0 0 Chief Financial Officer Common Stock 2013-05-28 4 A 0 18594 0 A 43094 D Stock Options (right to buy) 2 2022-06-18 Common Stock 25000 25000 D Stock Options (right to buy) 2.25 2014-08-30 Common Stock 7000 7000 D Stock Options (right to buy) 2.20 2017-03-01 Common Stock 25000 25000 D Stock Options (right to buy) 5.35 2018-08-08 Common Stock 16502 16502 D Stock Options (right to buy) 3.78 2019-05-19 Common Stock 11759 11759 D Stock Options (right to buy) 5.44 2020-02-05 Common Stock 100000 100000 D Stock Options (right to buy) 3.46 2020-05-18 Common Stock 10329 10329 D Restricted stock granted to the reporting person under the 2004 Stock and Incentive Awards Plan. The restricted stock vests and becomes exercisable 1/3 per year on May 28, 2014, 2015 and 2016, respectively. Grant to reporting person of option to buy shares under the 2004 Stock and Incentive Awards Plan. This option, granted June 18, 2012, vests and becomes exercisable in 20% increments on June 18, 2013, 2014, 2015, 2016 and 2017, respectively. Grant to reporting person of option to buy shares under the 2003 Stock Option Plan. This option, granted August 30, 2004, vests as to 4,000 shares on each of March 31, 2008 and 2009, respectively. Grant to reporting person of option to buy shares under the 2004 Stock and Incentive Awards Plan. This option, granted March 1, 2007, vests and becomes exercisable in 20% increments on March 1, 2008, 2009, 2010, 2011 and 2012, respectively. Grant to reporting person of option to buy shares under the 2004 Stock and Incentive Awards Plan. This option, granted August 8, 2008, vests and becomes exercisable in 20% increments on August 8, 2009, 2010, 2011, 2012 and 2013, respectively. Grant to reporting person of option to buy shares under the 2004 Stock and Incentive Awards Plan. This option, granted May 19, 2009, vests and becomes exercisable in 20% increments on May 19, 2010, 2011, 2012, 2013 and 2014, respectively. Grant to reporting person of option to buy shares under the 2004 Stock and Incentive Awards Plan. This option, granted February 5, 2010, vests and becomes exercisable in 20% increments on February 5, 2011, 2012, 2013, 2014 and 2015, respectively. Grant to reporting person of option to buy shares under the 2004 Stock and Incentive Awards Plan. This option, granted May 18, 2010, vests and becomes exercisable in 20% increments on May 18, 2011, 2012, 2013, 2014 and 2015, respectively. /s/ Steven R. Barth, Attorney-in-Fact for Scott R. Jensen 2013-05-31