When a venture-backed startup structures its founding team equity, one of the most commercially and legally significant decisions is how to handle a founder’s departure. Vesting schedules determine when founders earn their equity over time; good leaver and bad leaver provisions determine what happens to that equity when a founder exits. These mechanisms are borrowed largely from US venture practice, but their implementation in European jurisdictions raises specific legal challenges that practitioners and founders must address carefully.
The Purpose of Founder Vesting
Institutional investors require founder vesting for a straightforward economic reason: they are investing in the founding team’s future contribution, not merely compensating founders for past work. If a founder holds fifty percent of a company’s equity and leaves after six months, the departing founder captures value created by the continuing founder and by the investor’s capital and support, without having contributed to it. Vesting schedules align incentives by making the founder earn their equity through continued service.
The typical US-derived vesting schedule involves a four-year vesting period with a one-year cliff. This means no shares vest during the first year; at the one-year anniversary, twenty-five percent of the total allocation vests in a single tranche; and thereafter vesting occurs monthly or quarterly over the remaining three years. The four-year cliff-vesting model has become a market standard in European venture deals, though many European term sheets negotiate variations including two-year schedules for founders who joined the company several years before the investment.
How Founder Vesting Works in European Corporate Law
In the United States, founder vesting is typically implemented through restricted stock agreements under which the founder holds the shares subject to a repurchase right by the company at the original issue price. As the vesting schedule progresses, the company’s repurchase right lapses over unvested shares. This mechanism works cleanly under Delaware law because shares can be issued and repurchased with significant flexibility.
In European jurisdictions, the mechanisms for achieving economically equivalent results are more varied and often more complex. In the UK, founders frequently hold shares from incorporation; vesting is implemented through drag-along rights, put options, or compulsory transfer provisions in the articles of association or shareholders’ agreement that give the company or remaining shareholders the right to acquire unvested shares at a nominal or cost price on departure. The Companies Act 2006 permits significant flexibility in designing these mechanisms within the articles.
In France, the BSPCE (bons de souscription de parts de créateurs d’entreprise) scheme provides a tax-efficient warrant mechanism for founder and employee equity, but it applies to subscription rights rather than existing shares. True vesting on existing founder shares in French SAS companies is typically implemented through statutory put and call options (promesses d’achat and promesses de vente) and compulsory transfer provisions. The SAS (Société par Actions Simplifiée) structure is highly flexible and can accommodate complex vesting mechanics, but the options must be carefully drafted to be enforceable under French civil law principles governing penalty clauses and lesionary contracts.
In Germany, the GmbH structure creates particular challenges. GmbH share transfers require notarial involvement, and the mechanics of compulsory transfer and option exercise must be structured through notarially authenticated agreements. Some German startups use virtual equity programmes (virtual stock option plans or VSOPs) that provide economic exposure to equity value without actual share transfers, allowing vesting mechanics to be implemented contractually without triggering notarial requirements at each vesting milestone.
Good Leaver and Bad Leaver Definitions
The good leaver / bad leaver distinction determines the price at which a departing founder’s unvested shares are acquired and, in some frameworks, whether partially vested shares are also clawed back. The definitions are the most heavily negotiated aspect of leaver provisions because they determine the financial consequences of almost every departure scenario.
A bad leaver is typically defined to include a founder who resigns without good reason within the vesting period, is dismissed for cause (gross misconduct, fraud, material breach of the shareholder agreement or service agreement), commits an act that brings the company into reputational disrepute, or violates non-compete or non-solicitation obligations. Bad leavers generally forfeit their unvested shares at nominal value or original cost price, sometimes also losing a portion of their vested shares if the departure occurs within a specified window.
A good leaver is typically defined to include a founder who leaves due to serious illness or disability, dies, is made redundant through no fault of their own, or in some formulations is constructively dismissed. Good leavers generally retain their vested shares and may receive fair market value for any unvested shares that are subject to compulsory transfer. Some agreements create intermediate categories — such as a neutral leaver who does not meet the criteria for either — who receive fair market value for unvested shares without any penalty element.
The definitions matter enormously because the facts of most real departures are ambiguous. A founder who is pushed out by co-founders or investors following a strategic disagreement may technically resign (bad leaver) but argue they were constructively dismissed (good leaver). A founder dismissed on performance grounds may challenge whether the grounds constitute cause for bad leaver treatment. European courts, particularly in civil law jurisdictions, have shown a willingness to scrutinise these provisions under general contract law principles including prohibition of abusive clauses, reasonableness requirements, and labour law protections that may apply where the founder’s service agreement is characterised as an employment contract.
Labour Law Complications in Continental Europe
One of the most significant differences between US and European founder equity practice is the interaction with labour law. In many European jurisdictions, founders who provide services to their own company may be characterised as employees under applicable labour law, particularly if they receive a salary, work exclusively for the company, and are subject to the direction of the board. If a founder is characterised as an employee, labour law may impose constraints on the enforceability of bad leaver provisions.
In France, for instance, courts have held that provisions requiring a departing employee-founder to transfer shares at below-market value can constitute a penalty clause (clause pénale) or a lesionary provision if the difference between the transfer price and fair market value is disproportionate to the breach. Belgian labour courts have similarly scrutinised clauses that effectively penalise departing employees financially as a substitute for lawful termination procedures. Drafters of European shareholder agreements must therefore calibrate bad leaver provisions to be commercially effective without straying into territory that courts may void or modify.
In the Netherlands, the distinction between a managing director (bestuurder) and an employee is relevant because a managing director of a BV can be dismissed by the shareholders’ meeting with relative ease, whereas an employee may only be dismissed through a UWV procedure or court proceedings. Where a founder occupies both roles, departure mechanics must address both the corporate law dimension (removal as director) and the contractual dimension (triggering the leaver provision in the shareholders’ agreement).
Acceleration: Single-Trigger and Double-Trigger
Acceleration provisions determine whether a founder’s unvested equity vests on certain triggering events. Single-trigger acceleration causes vesting to accelerate on a change of control alone. Double-trigger acceleration requires both a change of control and a subsequent adverse employment event — such as termination without cause or a material reduction in responsibility — within a specified period after the transaction.
Investors generally prefer double-trigger acceleration because it preserves the acquirer’s ability to use unvested founder equity as a retention tool following an acquisition. Single-trigger acceleration can complicate M&A processes because it immediately converts unvested equity to vested, reducing the acquirer’s leverage over founders and potentially inflating the acquisition price. Founders, understandably, prefer the certainty of single-trigger acceleration because it ensures they receive the full benefit of their equity in any liquidity event regardless of what happens after the transaction closes.
The market standard in European institutional venture deals has migrated toward double-trigger acceleration, though the specifics of what constitutes a qualifying adverse event after the change of control remain negotiated. Founders should pay close attention to whether the double-trigger requirement is defined broadly enough to capture scenarios where they are effectively sidelined even if formally retained in a nominal role.
Anti-Dilution and the Vesting Interaction
Vesting provisions interact with anti-dilution mechanics in ways that are sometimes overlooked. If a down round occurs during a founder’s vesting period, the vesting schedule typically continues as agreed — vesting is based on time and service, not on the per-share value of equity. However, where the down round triggers anti-dilution adjustments for preferred shareholders, the effective percentage of the company held by the vesting founder at full vest will be lower than anticipated at the time the vesting schedule was agreed. Founders should model the cap table impact of anti-dilution scenarios when negotiating vesting terms and consider whether the aggregate equity allocation at full vest remains sufficient incentive under realistic dilution scenarios.
Practical Recommendations
For founders, the most important negotiation points in vesting provisions are the good leaver definition (which should be broad enough to capture realistic departure scenarios that are not the founder’s fault), the price at which unvested shares are acquired from a good leaver (which should be fair market value or at worst cost price, not nominal value), and the interaction with labour law protections in the relevant jurisdiction. Founders should also ensure that the vesting mechanics are consistent with their local corporate and tax law and that any option or compulsory transfer mechanism is formally valid and enforceable.
For investors, the most important considerations are ensuring that the vesting schedule is long enough to provide genuine alignment, that the bad leaver definition is specific enough to capture genuine misconduct without being so broad that it applies to ordinary departures, and that the clawback or transfer mechanism is legally robust in the jurisdiction where the operating company is incorporated. Investors should also consider the interaction between vesting and their own exit timeline, ensuring that founders have sufficient incentive to remain engaged through the expected holding period.
Conclusion
Founder vesting and leaver provisions are foundational tools for aligning long-term incentives in venture-backed companies, but their implementation in European jurisdictions requires careful attention to local corporate law, labour law, and tax constraints. The US-derived model does not import seamlessly into continental European legal systems, and provisions drafted without regard to local law may be unenforceable or subject to judicial modification. Founders and investors alike should insist on jurisdiction-specific legal advice when structuring these provisions and should model the financial consequences of realistic departure scenarios before signing.