What Reverse Vesting Is and How It Differs from Traditional Vesting
Reverse vesting is a contractual mechanism whereby founders initially acquire the full amount of their shares, but agree that, should they leave the company before a specified period has elapsed, the company or the remaining shareholders may repurchase the portion of the shares that has not yet been consolidated.
Unlike traditional vesting, in which shares or rights are progressively acquired as certain conditions are met, in reverse vesting the founder already holds the shares from the outset, but their definitive consolidation is conditional upon the founder’s continued presence in and commitment to the project.
This mechanism usually includes a cliff period, that is, a minimum term (typically one year) during which, if the founder leaves the company, no shares are consolidated and the entirety of the shares may be repurchased. Once the cliff has been passed, the shares consolidate progressively, usually on a monthly or quarterly basis, until the total vesting period is completed, which generally ranges between three and four years.
The main purpose of reverse vesting is to protect the company and the other shareholders against a founder’s early departure, preventing that founder from retaining a significant percentage of the capital without having contributed to the development of the project throughout the originally envisaged period.
Why Investors Require Reverse Vesting from Founders
When a startup receives external funding, investors typically require the implementation of reverse vesting clauses as a condition for investing. The reasoning is straightforward: investors are placing their trust not only in the business idea, but in the founding team that will execute it. If one of the founders leaves the project shortly after the investment is received, keeping their shareholding intact would create a clear imbalance between the risk assumed by the other shareholders and investors and the actual contribution made by the departing founder.
Reverse vesting therefore makes it possible to align the incentives of all parties involved, ensuring that ownership of the company reflects each founder’s commitment and effective dedication over time.
Key Clauses: Share Repurchase and Good Leaver / Bad Leaver
Implementing reverse vesting requires precisely regulating certain aspects in the shareholders’ agreement or in the company’s bylaws. Among the most relevant clauses are:
- Repurchase clause: establishes the mechanism through which the company or the shareholders may acquire the departing founder’s unconsolidated shares, as well as the price applicable to that repurchase.
- Good leaver / bad leaver: distinguishes between circumstances in which the founder leaves the company for justified reasons (good leaver) or unjustified reasons (bad leaver), which typically determines more or less favourable repurchase conditions for the departing founder.
- Cliff period and vesting schedule: defines the minimum required length of service and the pace at which shares will be consolidated once that period has elapsed.
The effectiveness of reverse vesting largely depends on how its contractual provisions are drafted. It is therefore essential to carefully negotiate its content and tailor it to the specific characteristics of each transaction, since a poorly drafted agreement can give rise to future conflicts between the founders, the company and investors.

Beatriz Núñez es abogada especialista en derecho mercantil, reestructuración societaria y fusiones y adquisiciones.
Cuenta con una sólida experiencia en asesoramiento jurídico a empresas nacionales e internacionales, especialmente en planificación de rondas de inversión, contratación mercantil e inmobiliaria y gestión integral de la secretaría de sociedades. Es graduada en Derecho por la Universidad Complutense y posee un doble máster en acceso a la abogacía y asesoría jurídica de empresas por el Centro de Estudios Garrigues, además de un diploma en relaciones internacionales por la Universidad Villanueva.






