I'd ditch it.
You're waiting for it to maybe go back up. Do you know anything about the company that makes you think it will? Or, are you just hoping?
In the meantime, you are dealing with the opportunity cost of having this money wrapped up in that stock when it could be invested in something like VTSAX or used to max out a tax advantaged account.
So, you shouldn't be evaluating only the stock but rather, comparing the stock to all of the other potentially higher and better uses for that money.