Lost Job Due to High Performance?

Ok, here goes, I haven't ever asked a lawyer this, but I wanted to see what others thought. I will try and make it short.

I was with a company for almost 3 years. I received two perfect performance reviews, and promoted three times, given several thousand pre ipo stock options. The end of last year I was given a corrective action for Grammar. The facts are as follows:

Received correction action for Grammar
1 month earlier received perfect performace review resulting in raise and pre ipo stock options (worth more than 300,000 face value) and over 600,000 at this point from the current COO.
I was given a conversation report 1 month later for organizatoin in my job, such as follow up, etc.

Two degress, one in elementary education
1 year in a Masters program where I received a 4.0

Now my question is this? I was not the only one that was come after before the IPO becaue of my options in the company. I was told directly by the HR Director that "he was surprised I made it this far". This company has a documented record of trying to push people out, afterall I was a manager also, so I know how they work.

Do I have a case? Can I sue? Who would I contact?

PS: I resigned under the pressure because of the nasty things that were being said to me, so I was not fired.

big mistake, NEVER EVER resign in America....

You are presumed guilty, like pleading no contest.

Plus you lose you unemployment benefits, no different from quitting....

ALWAYS get fired and even escorted out by an armed security guard, you have a better chance that way to sue and get even.

You resigned? No, you don't have a case. If you'd been fired, maybe you might have, I'm not even 100% sure of that (not based on the little information available.) But any case you might have had was lost when you resigned.

You resigned because you received a corrective action for poor grammar and then a conversation report over your organizational skills? I must be missing something. A bit embarassing maybe but it doesn't seem worth quitting a job over.

In any event, no, you don't remotely have a case.