Then coast. Just do the minimum to keep your job until your vesting date.
The way to signal that you're unhappy is to give your notice the day of your vesting date. (Or give your notice so that you leave on your vesting date.)
I've seen worse. One CTO that I know of, after acquisition into a public company, got stuck with an idea guy who just monopolized his time pushing for dumb ideas that had nothing to do with what the company wanted. From reading between the lines, it sounds like there was a lot of verbal abuse going on.
The way to signal that you're unhappy is to give your notice the day of your vesting date. (Or give your notice so that you leave on your vesting date.)
I've seen worse. One CTO that I know of, after acquisition into a public company, got stuck with an idea guy who just monopolized his time pushing for dumb ideas that had nothing to do with what the company wanted. From reading between the lines, it sounds like there was a lot of verbal abuse going on.