Like many of the other comments here you don't have to quit to sell. But you likely need to pre-announce. Usually the broker where your options are held knows h

Like many of the other comments here you don't have to quit to sell. But you likely need to pre-announce. Usually the broker where your options are held knows how to set these up. You can mostly choose any sell strategy you want. I once set up a once a month sale across a year ahead of time to spread the risk out. You do probably want to consult a lawyer who is working for you rather than the company to advise on this.