A lot of people forget that for every sell there is a buy! Buys at the bid show up as sells so the matrix that you are using doesn't take that into consideration and paints orders incorrectly by using the price at the time as the variable.
I can tell you where 4.2 million of those shares went the past few trading dayz, as for the rest I'm pretty sure they found a good home. I decided to put off buying the wifey another car until the fall so if our players take this any lower I may take a few moe.