It could be a number of reasons. Typically these yield signs stem from questions by the various SROs. It could be DTCC asking about the recent, rapid increase of the OS. It could be a question that the SEC or FINRA has regarding their filings. Only they and the company would know. As to the OS and AS. IF they have enough funding, they'll have no need to sell or place more stock. I think it all boils down to the IB firm raising the capital they need to launch their various projects.