"The term restricted stock unit (RSU) refers to a form of compensation issued by an employer to an employee in the form of company shares. Restricted stock units are issued to employees through a vesting plan and distribution schedule after they achieve required performance milestones or upon remaining with their employer for a particular length of time. RSUs give employees interest in company stock but no tangible value until vesting is complete. The RSUs are assigned a fair market value (FMV) when they vest. They are considered income once vested, and a portion of the shares is withheld to pay income taxes. The employee receives the remaining shares and can sell them at their discretion."