It's possible. The earnings report of Tesla is due in a week.Now if Elon knew that Tesla's earnings report is going to be good or great we would see a 5-10+ percent rally in Tesla stock. And when 5-10% surplus is observed in scale of billions, that's 50-100+ million dollars per billion dollars. Now Elon sold nearly 6+ billion dollars in past 2 weeks. There was nothing of very urgent sorts which caused him to liquidate 6+ billion dollars from his Tesla stake. Currently Elon is worth around 150 Billion dollars. Liquidation of 6 billion dollars is 4% of his net worth. And a promotor diluting his own stake is never a good sign.Now it is possible that Elon may've needed funds for his Germany factory. It may Also be possible that he loaned some of it to Cathie and she'll bought stakes in Tesla from this. Now directly sending her money would be criminal. So following the money trail from one person to another may end to Cathie indeed.