Not a bad guess. Could also be selling enough to have free shares. Or maybe someone trying to free up a little cash for what they perceive as a more immediate opportunity. Bottom line is that since the name change and R/M, everyone should know what they're holding.
Still thinking about the .25 seller. Maybe they were trying to sell @ ask and after they selected "sell", they neglected to change the price. TDA always defaults to the bid price. Otherwise, they could have easily dropped the ask.