February 5, 2025

Equity structures for founding teams in tech startups

Analysis of vesting models, good/bad leaver clauses and founder protection mechanisms against dilution in subsequent investment rounds.

Startups

Designing the right equity structure from day one

Equity distribution among founders is one of the most critical decisions in a startup’s life. A poorly designed structure can generate conflicts, block investment rounds, or cause the premature departure of key talent.

Vesting models for founders

Vesting establishes that founders’ shares vest progressively, incentivizing long-term commitment and permanence.

Standard structure (4+1):

  • Vesting period: 4 years
  • Cliff: 1 year (if a founder leaves before, they lose all unvested shares)
  • Monthly vesting post-cliff: Shares vest monthly during the remaining 3 years

Common variants:

  • Accelerated vesting upon acquisition (single/double trigger acceleration)
  • Differentiated vesting by founder based on contribution
  • Reverse vesting for founders who already hold shares

Good Leaver / Bad Leaver clauses

These clauses determine what happens to a departing partner’s shares:

  • Good leaver: Departure for justified causes (illness, retirement, mutual agreement). The partner retains vested shares, and unvested shares are repurchased at market value.
  • Bad leaver: Voluntary departure without cause, dismissal for serious misconduct, or unfair competition. Shares are repurchased at nominal value or a significantly reduced value.

Anti-dilution protection for founders

In subsequent investment rounds, founders can see their stake significantly reduced. Protection mechanisms:

  1. Weighted average anti-dilution clauses — Proportional adjustment of the price per share
  2. Preemption rights — Right to participate in new issuances
  3. Reserved share pool — Reserve a percentage of the cap table for the team
  4. Pay-to-play — Require investors to participate in subsequent rounds to maintain their rights

Cap table: the essential management tool

A well-maintained cap table should reflect at all times:

  • Distribution of shares among founders
  • Stock options granted and exercised
  • Pending convertible notes and SAFEs
  • Voting rights and liquidation preferences

At A2 Estudio Legal we design equity structures that protect founders while facilitating investment. Book a call to review your cap table.

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