"They are much stingier than you might think. The true award amounts are much smaller than they would like the world to believe. It varies substantially depending on the impact the team and the individual have had, and it can be anywhere from $20K to $100K, with the occasional $1M reportedly given to very senior employees (e.g. the team's director). The awards are typically paid as RSUs and vest over 4 or 5 years."

i.e. not much makes it past the layers of VPs, directors, and front-line managers (all of whom like money very much) to the people who actually made it happen.