- Stock Option
- A contractual right granted to an individual to purchase a set number of company shares at a fixed price within a defined period.
- Grant Date
- The specific calendar date on which the company formally awards the option, establishing the exercise price and starting the vesting clock.
- Exercise Price
- The price per share at which the option holder may purchase shares, set at or above fair market value on the grant date.
- Vesting Schedule
- The timetable that determines when portions of the option become exercisable β commonly monthly or annual tranches over a four-year period.
- Cliff Vesting
- A vesting structure in which no options vest until a defined initial period β typically 12 months β has passed, after which a lump tranche becomes exercisable.
- ISO (Incentive Stock Option)
- A stock option that qualifies for favorable US tax treatment under IRC Β§422, available only to employees and subject to strict IRS limits.
- NSO (Non-Qualified Stock Option)
- A stock option that does not qualify for ISO tax treatment; the spread on exercise is taxed as ordinary income and can be granted to employees, directors, and consultants.
- Expiration Date
- The last date on which an option can be exercised; unexercised options typically expire 10 years from the grant date or earlier upon termination.
- Equity Incentive Plan
- The overarching company plan that governs all stock option and equity award grants, approved by the board and typically by shareholders.
- Fair Market Value (FMV)
- The price at which a share would change hands between a willing buyer and a willing seller, determined by a 409A valuation for private companies.
- 409A Valuation
- An independent appraisal of a private company's common stock fair market value required under IRC Β§409A to set defensible option exercise prices.