The selling was planned a long time ago right? I think the main problem here is a CEO owning stock in the first place. If he owns stock he will obviously sell it when he no longer thinks it’s a good investment. And if it’s planned some time ahead it’s not exactly inside knowledge. At least I don’t think that this is a bad case of insider trading.

How else do you want to handle a CEO owning stock? From his perspective: He sees hard times coming for Unity so he sells his stock. At the same time he tries to turn the situation around, uncertain if he will succeed.

And AFAIK the trades are public so everyone would know that the CEO is sceptical about the company’s future. There are obviously problems with the ToS changes but is the stock selling really all that relevant in this discussion?