In August 2019, the Company effected a one-time option exchange, wherein certain employees were offered the opportunity to exchange eligible outstanding stock options with exercise prices that are significantly higher than the current fair market value of the Company’s common stock for the grant of a lesser number of restricted stock units (RSU). The participants received one new RSU for every two stock options tendered for exchange. As a result, 3,200,375 stock options were exchanged for 1,600,186 RSUs. The RSUs have a one-year vesting schedule or vest upon a Change of Control, an employee’s termination without Cause, or resignation for Good Reason as defined in the 2013 Incentive Award Plan. The one-time option exchange will result in additional stock compensation expense that is expected to be recorded over the one-year service term commencing August 1, 2019.