Vesting Schedule
When Robin and Antje started Zipcar, they decided to split ownership 50/50. Fair and simple. At first, it seemed like a success story: the company grew, became highly profitable, and eventually went public.
But within a year and a half, conflicts caused Robin to fire Antje. Except, Antje kept her 50% stake in the company. Robin was stuck working around the clock for virtually no pay.
This is exactly why vesting exists. Without it, a cofounder can walk away with a huge slice of the company without putting in the work, leaving the remaining cofounders carrying the burden. Vesting means you earn your equity over time by building the company.
I acknowledge that if a cofounder dies, becomes permanently disabled, or is otherwise incapacitated, their unvested shares are automatically forfeited and returned to the company.