You lose your unvested RSUs when you leave (so divide your RSU calculations by 2 to start with), and the later grants would be at higher prices and thus have experienced less growth, so your envelope math is off by enough to not be good envelope math.

On the other hand, $100k is by no means the largest RSU grant you can get, so, basically, we have no damn idea. Overall it’s pretty silly to speculate about someone’s net worth unless they’re excited to talk about it.

But the larger point that high performing senior engineers at megacorps can make way more than people outside the megacorp world imagine is true and surprisingly contoversial on HN.