I doubt it matters if his shares are private or not, it generally causes a drop, and as there's a lot of people in Tesla for the money. They will likely bail high to buy low, which will have a cascade effect of the stock. If you're playing a short game, then all you need to know is - will this have a negative or positive effect on the prices.
I voted yes, I've had my shares for a long time. I know it's going to hurt me, but it's about time some of this cash went into different things, even if we may not see any benefit this side of the pond.