Q3 2018 hasn't started yet. We're still in Q2.
The former management team would not have been able to liquidate their stock without filing publicly. On top of that, there is not a single broker on this planet who will accept private placement shares after the company stopped filing audited financials. Even in 2015, it was next to impossible to find a broker who would accept private placement unless the stock was .02+ per share. Why do you think half O/S is still restricted? No one will take the stock unless the company becomes current.
The info in Bloomberg Terminal or w/e financial terminal you're using for this stock is likely inaccurate given that it's showing former management as not owning stock. Their shares are in PP form, and still restricted.