Note 9 – Subsequent Events

Restricted Stock Units

On April 4, 2023, an aggregate of 51,000 RSUs granted to employees vested and resulted in the issuance of 32,364 shares of common stock and the remaining 18,636 shares of common stock were withheld for taxes and returned as authorized and unissued shares under the 2015 Plan.

On April 30, 2023, 23,000 RSUs previously granted to an employee were cancelled and returned as authorized and unissued shares under the 2015 Plan upon termination of employment prior to vesting.

On May 1, 2023, 50,000 RSUs granted to an employee vested and resulted in the issuance of 35,707 shares of common stock and the remaining 14,293 shares of common stock were withheld for taxes and returned as authorized and unissued shares under the 2015 Plan.

On May 5, 2023, 21,000 RSUs previously granted to an employee were cancelled and returned as authorized and unissued shares under the 2015 Plan upon termination of employment prior to vesting.