If you work at the company you have almost certainly signed an agreement not to disclose such information; if you do so, you are violating the agreement. But that isn't insider trading.

If you hold a position of fiduciary responsibility within the company (or gain information from someone who does) that's a different matter. But the analogy there would be hacking into the company to read internal records, not just looking over a fence. in both cases, it's a crime.