Planned sales help in regards to non public material information (NPMI) concerns, but they are not required. Elon had planned and unplanned sales last year.Re: Elon selling Tesla to pay for Twitter - I thought he had to plan his purchases / sales of Tesla stock well in advance to avoid any insider trading concerns, so it seems unlikely that he'd be able to move that fast after the plan was approved by Twitter board, and if it really isn't going to finalize until end of year, no need to dump stock now. Seems more likely someone is big mad and getting out, or getting in (shorting)?