system
A chat on subreddit /r/wallstreetbets
human
Yeah, for remaining shares on hand. But, when they go public, lots of founding employees/venture funds/late stage investors/seed investors/etc. are able to cash out significant stakes in order to create the IPO float. If your founding team owns 5%, that means that heavily cashed out during or in the months leading to the IPO.

gpt
where would you find information like that on future IPO's? 
 Did Uber founding employees already cash out as well?