Greed isn't always rational. Scott Kupor [managing partner at VC firm Andreessen Horowitz] wrote an article [1] suggesting that a 10 year exercise window for e

Greed isn't always rational. Scott Kupor [managing partner at VC firm Andreessen Horowitz] wrote an article [1] suggesting that a 10 year exercise window for employees who leave: " is really a direct wealth transfer from the employees who choose to remain at the company and build future shareholder value, to former employees who are no longer contributing to building the business/ its ultimate value." This seems to suggest that the "investment" by early employees who leave shouldn't be treated like the early investments from VC's who decline to keep investing at some point. [1] http://a16z.com/2016/06/23/options-timing/ http://a16z.com/2016/06/23/options-timing/