The most infamous case of this was Zynga pre-IPO where certain employees were pulled into a room and given the &quot;give up your unvested equity and keep your job, or lose both&quot;.<p>I&#x27;m not sure if it&#x27;s common, but it&#x27;s definitely not unheard of.<p>Anecdotally from conversations I&#x27;ve had with founders some are <i>very, very</i> keen on cycling options back into the pool as much as possible. More importantly I&#x27;ve heard some ideas on how to do this that made my skin crawl.