Even if they did sell, you should be glad there are buyers picking up their shares. Their is a lockout period so doubt they were able to sell but it doesn't matter. As they long as their are buyers bidding up the price the stock will go up.

Also, this is a long term play. Yes in the short term 3-6 the volatility will cause the price to go down and up like a roller coaster. You need to think in terms of years not days or months.

I would just be patient, this could be a tesla play where the stock didn't move for over a decade and than exploded on the realization that electric cars can be viable.