Considering, what you have posted overnight, here is my view: IMHO Softbank has decided to take money from portfolio of its over hyped companies, for which many reputable commentators use an investment class term “dog shit”.
It is more/less public knowledge, that recent rise has been driven via deep OTM call option trading and has nothing to do with fundamentals. Quite possibly (just my opinion) Musk was notified of that intend and is selling his shares as well. Cannot sell it all, but enough to keep him happy (my other favourite of this class – DASH is taking dive too and its CEO is selling his position).
Should I be at least remotely right, then LAC will be taken down with TSLA, no question about that. I wish the regulator had a balls to dive into option trading over past few years to see what was going on there. Probably nothing criminal there and it is all just in my mind :-)