A form of stock-based compensation that allows recipients to participate in company stock performance. RSUs often give employees value in the company but are often issued with a vesting schedule that must be met for the employee to receive the shares. Often upon vesting, the full FMV of the units are taxed as ordinary income, units are withheld to cover tax, and the remaining value is deposited as shares into a brokerage account. Describing availability, vesting schedules, tax treatments, maximum grants, 83(b) eligibility, termination agreements, and detailed cash flow considerations is beyond the scope of this glossary.