Anyone got stats on the acquisition split between owning parties (founders/investors/employees)?
To the limited extent that having rough numbers helps improve your estimation of what the payoff matrix is if you build a business to where it is worth $800 million: typically, the founders would split several hundred million, most employees would get $X0,000 to $Y00,000, and exceptionally early employees plus key executives (CEO, etc) walk away with a few million. The remainder (several hundred million) goes to the investors.
Braintree's numbers might be different due to their bootstrapped pre-funding trajectory or due to choices made by the founders, but ultimately their numbers are their numbers.