Meaning
A conditional contractual commitment to grant or transfer company equity to an individual in the future, subject to the completion of specific service milestones, tenure requirements, or performance goals. An unvested share promise does not convey immediate legal ownership, voting power, or economic rights, serving instead as an executory right to earn shares over time. The operational framework of the promise ceases to apply when the recipient completes the vesting conditions to receive unrestricted shares or when the agreement terminates following a departure.
Vesting Schedule
The chronological structure of equity accrual defines the transition from an executory promise to actual ownership. Under a standard unvested share promise, an individual must provide continuous service across a multi-year vesting schedule, commonly structured as a four-year term with a one-year initial cliff. If the service provider departs before the cliff date, the entire promise lapses without any equity transferring to the individual.
Post-cliff service earns shares incrementally on a monthly or quarterly basis according to the underlying grant agreement. Acceleration provisions may alter this schedule upon specific corporate liquidity events or involuntary terminations.
Evidentiary Proof
Demonstrating the existence and specific terms of an equity commitment requires complete contemporaneous corporate records. An unvested share promise must be substantiated by an official stock plan, a signed grant agreement, and corresponding board consent minutes approving the award. Claimants who rely on informal emails, verbal assurances from founders, or unapproved offer letters struggle to establish enforceable vesting terms.
The paper trail must specify the grant date, the commencement date for vesting, the total number of underlying shares, and the strike price if options are used. Gaps in these core terms undermine the legal enforceability of the conditional grant.
Termination Consequence
The severance of the underlying service relationship immediately halts the ongoing accumulation of equity rights. When a participant leaves an enterprise, any outstanding unvested share promise expires automatically according to the plan terms, returning the unearned shares to the corporate pool. The company bears no legal obligation to compensate the departed individual for the unvested portion of the promised equity.
Disputes arise primarily when an individual claims wrongful termination designed specifically to prevent an impending vesting milestone from attaching. Robust stock agreements with clear forfeiture clauses prevent departed workers from asserting ongoing rights to enterprise value.
