Brief notes after spending 10 minutes figuring out how to get this, not nitpicking or saying you got anything wrong. Source was page with "54" at the bottom

- Unvested grants over 4 years vs. buybacks this year - #s are for 2020, not 2023 - # excludes tax witholdings (i.e. shares they'll never grant). - For 2020, grants of 15.539 - 10.273 witholding = ~5B, matching sibling comment's correction - $2.324B is one of 4 columns, real number is $50.274 B - so for 2020, real #s are 5.26B in unvested grants over 4 years versus 50.274B in buybacks that year. - for 2023, 22.578 - 10.164 = 12.4B in unvested grants over 4 years, versus 62B in buybacks that year