Actually, I think that trial results would most definitely be subject to disclosure in a timely manner because they could represent a "substantive change in the financial outlook" of the company.

Negotiations for mergers and partnerships and buyouts do not have to be disclosed until there is an actual offer on the table.

Things that must be disclosed:

Federal regulations require the disclosure of all relevant financial information by publicly-listed companies.

In addition to financial data, companies are required to reveal their analysis of their strengths, weaknesses, opportunities, and threats.

Substantive changes to their financial outlooks must be released in a timely fashion.