What Is Single Trigger/Double Trigger Acceleration?
Single-trigger and double-trigger acceleration are mechanisms that speed up the vesting of share options or equity when certain events occur, such as an exit or termination.
Single Trigger/Double Trigger Acceleration Meaning
The single trigger/double trigger acceleration centres on protecting employees and founders during major company events. To define single-trigger acceleration in practice, vesting accelerates upon one event, usually a company sale, allowing equity to vest immediately at exit. Double-trigger acceleration requires two events, typically a company sale and the individual being terminated without cause, before accelerated vesting applies.
A clear single vs double trigger definition helps balance incentives: single trigger favours employees, while double trigger is often preferred by investors to prevent misalignment pre-exit. These mechanisms stand for fairness, protection and clarity around equity treatment in high-stakes situations.
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