Stock sales are kinda weird when youre talking about large sales like that, because some will hit the dark pools making them less likely to affect the price.
However, that is usually reserved for institutions, not private sales.
On top of that, youd have to assume that only one sale would occur, and he wouldnt need to piecemeal his transactions by selling blocks of shares instead of the whole lot.
Its really tough to predict, but id like to imagine nobody even wants his POS company.
Nothing tiktok is doing is different from the FAANG and other tech companies. The only difference is they are keeping their data within US borders (or at least 5eyes) whereas tiktok is sending data back to China.
So as we can see, its not whether or not data collection and privacy invasion is BAD, its just a matter of who is privvy to it.