I do not think you understand what happened.
Dan did not sell billions of shares. When traditional funding dried up, including advances on credit lines and the import/export bank line he borrowed money - LOANS- that were convertible into stock. Because the price dropped dramatically the stock was convertible into billions of shares.
When I first started following it we had 2.2 or so billion shares back in 2015/2016. Now there are 4.5 billion or so shares.
For that 2.3 billion shares added, DAN Got ZERO money from then to now they are just conversions.
Everything I post is my own opinion and people should always do their own research and due diligence on any company they are looking at