> He can sell his shares when he feels like it.

I thought that as a corporate officer he kind of can't sell his shares when he feels like it?

My layperson's understanding is that people like him have to decide in advance when they're going to sell shares and tell the SEC (by filing a 10b5-1 with a preset sales schedule and cooling-off period before sales start). I thought that the most control he would get is choosing to suspend the plan (i.e. keep shares instead of selling them on the pre-decided date).

Are there other ways he can sell his shares whenever he wants? Can he borrow using them as collateral whenever he likes, for example?