Ask HN: What financial info is one entitled to as a stockholder in a private co?

I exercised some stock options as I left my last job. What financial information about the health of the company would I be entitled to? What is typically shared with stockholders, and how regularly? As an employee, I had some insights about what was going on with regards to revenues, profitability, etc. But I haven't received (nor asked, mind you) anything since. So I'm wondering what is typical, and what is required. Thanks!