I'm not following why there is a tax bill. If the stocks are founder stock or RSU, then the employee should have done an 83b election to avoid paying tax as they vest. If they are options, then the employee is under no obligation to exercise them, and owes no tax until they are exercised. What am I missing?
If you do an 83b election on RSUs, you'd recognize the entire present value of the RSU grant as income in that year, and pay taxes on it. I believe you're then limited to claiming capital losses on that if you leave before it all vests, or it all ends up worthless. Stripe was already worth $9B in 2016. If you joined then, it could have been prohibitively expensive to do an 83b election. The whole point of RSUs is tha…
It depends on if you want to rank Foursquare as "successful", but they recently did that, and it was big news in the don't-let-RSUs-expire community.
https://www.theinformation.com/articles/the-private-tech-com...