Nah we can see the transaction if one occurs. However we don’t know how big the bid is or how many shares on the ask.
Also really can’t tell where the bid and ask are. Of course some of the people in this forum have access to delay quotes. However in real time when bid and ask can change in moments notice in EM we will be lagging behind on that update.
And I'm a little confused about your question so I'm going to re-write it the way I understand it even if my grammar is crappy....hopefully it's the way you meant it: Are you saying that trades are being made in EM that us retail investors are in the dark about?
But a concise answer to your question seems to be "No". "Trades in Expert Market Securities that are not deemed “Restricted Securities” by FINRA1, are reported and distributed through normal market data distribution channels."
Also note that it is my understanding that insiders are prohibited from trading their restricted securities. This fact may be important to those who feel the Expert Market was entered willingly for reasons that I find unclear or just due to their inability to get their filing act together (that's my sense of it).