I don't see a quote as to how much he personally put in. $500M went in so far in total; the rest is milestone-based. I recently saw an 8-figure round in which

I don't see a quote as to how much he personally put in. $500M went in so far in total; the rest is milestone-based. I recently saw an 8-figure round in which the lead put in $25K. But they did the legwork to arrange the round and get everyone else in, so they were the lead. Sam's the board chair, an early investor, and super connected, so he's certainly able to lead a round whether or not he puts in the majority of the cash.