What you suggest makes sense, but I believe the lenders are limited in the amount of shares they may hold/sell at any one time, assuming they have coverted some amouts of debt to shares for sale.  Even so, I think the level of bids in recent weeks suggests that something more may be going on.  How much more is the question, IMO.

As to CAs, I'm not sure what you are asking.  The company has let us know that they have multiple confidentialy agreements under their belt.  We can't know from whom, nor can we know if/when any of these will result in an offer of any sort that we will know about.  A lot of talk can happen off the record, including rejections of proposals.  Having said that, "reasonable" written offers much be disclosed per SEC rules. 

Does this help?