What Tesla did with bitcoin could be considered market manipulation, and that's a serious crime considered by the US government. The fact that the company invested $1.5B and make it public that bring a lot of investors to bitcoin, and after that, we see how bitcoin has a crazy jump in the prize, and now they sold the 10% when bitcoin was on its ATH.
As a reference, I will leave this link:
https://www.fbi.gov/scams-and-safety/common-scams-and-crimes/market-manipulation-pump-and-dump-fraudSo, the question is, did tesla make market manipulation and you think the company will be charged for it?
The tesla had done the action of the whales in the market.It was a quite common factor in most of trading platform.Which includes the stock market investment.I don't think,they will charged for this action.They will had a capacity to defend themselves.Investment of 10% of bitcoin on their altcoin will be the master move of them,which should be appreciated.