They are matched orders ... most likely a short position trying desperately to exit their position ... MM's control these trades and it was clear that they were trying their best to keep the price under $10.32 on Friday, which represents the 200 day mvg avg.
The volume of shorted shares is so overwhelming that the market makers have an olympic size task ahead of them to keep a lid on the price. Good luck with that. The kitd shorts remind me of chum that has been spread in the ocean with the traders and longs circling to get their fill of the very wounded shorts. All good!
I will tell you exactly what those after hour prints are about. When a institution is in the market during the course of any given day their traders are accumulating or selling shares. When market closes they print there shares with a average price.