SEC Form 4: Wills Stephen T disposed of 10,000 units of Stock Option granted 6/27/2013, disposed of 6,000 units of Stock Option granted 6/25/2014, disposed of 10,800 units of Stock Option granted 6/11/2015, disposed of 15,840 units of Stock Option granted 9/7/2016, disposed of 37,900 units of Stock Option granted 12/12/2017, disposed of 18,160 units of Stock Option granted 6/26/2018 and disposed of 25,520 units of Stock Option granted 6/24/2019, decreasing direct ownership by 33% to 257,101 units