More important than a 10-K is the S-4. The 10-K is just a filing and doesn't need approval, regardless of what many of you "think". It's similar to your tax filings and the IRS. They don't approve them but will hold it against you if there's an issue or problem.
An S-4, though, has to be reviewed and deemed effective by the SEC. EDGAR shows nothing yet.
An 8-K is just a material report of events occurring between quarterly filings, such as a merger or anything else that should be communicated publicly. Unaudited financials from a private corp in them don't really mean much of anything.
The most valuable commodity I know of is information