My husband was an early employee in a privately-held games company that was purchased for a similar amount. Only the founders and a couple of employees from day

My husband was an early employee in a privately-held games company that was purchased for a similar amount. Only the founders and a couple of employees from day one were made rich, in the "FU money" sense. OTOH, it was a games company so no one went in expecting a payoff. The retention bonuses were also extremely generous. The reality in almost every startup is that only the founders are going to see a payoff, no matter how big the acquisition is. Calibrate your behavior accordingly.