Meaning
Contractual equity acceleration provisions require both a corporate change of control and an involuntary termination of employment before unvested shares convert into fully owned assets. Enterprises use double-trigger vesting to protect executive equity stakes during mergers and acquisitions while ensuring management continuity for acquiring entities. The mechanism grants ownership acceleration only when an acquiring company dismisses the founder or material employee without cause within a specified time window following the transaction.
It stops applying if the employee voluntarily resigns without good reason or remains employed throughout the standard vesting period.
Concurrence Condition
Ownership acceleration remains inactive until two distinct contractual events occur in sequence. The first condition requires the closing of a qualified acquisition, asset sale, or major change in voting control. The second condition requires the acquirer to terminate the executive without cause or force a constructive termination through substantial salary reductions, role demotions, or mandatory office relocations.
Both events must materialize before unvested options vest immediately.
Retention Function
Acquiring corporations require double-trigger structures to retain critical technical and executive talent during post-merger integration periods. Single-trigger provisions create financial incentives for founders to exit immediately upon deal completion, draining operational leadership from the acquired business. Double-trigger vesting aligns executive retention with acquirer operational needs by preserving original vesting schedules as long as employment terms remain stable.
Acquisition Consequence
Acquirers avoid uncoordinated dilution and abrupt talent departures by negotiating double-trigger protections into early-stage shareholder agreements. For founders, the mechanism guarantees economic protection against opportunistic dismissals executed by new ownership groups seeking to reclaim unvested equity pools. Double-trigger vesting balances executive equity security against enterprise operational stability throughout major corporate transactions.
