Since the amount was reported on your W-2, I'm assuming that you were granted RSU's that vested in 2019. When RSU's vest, their fair market value as of the vesting date is considered ordinary income and is reported on the employee's W-2. There usually will be an entry in Box 14 of the W-2 and the letters "RSU" may appear.
Post back if my assumptions are incorrect.
**Answers are correct to the best of my ability but do not constitute tax or legal advice.
