This is an attempt at share price manipulation plain and simple.
The seller is hoping to lower the price per share so as to increase the value of their margin account.
It is a bummer we have this lone shorter and we unfortunately will need to continuously fight their attempt to steal money from the company and the investors with thier insidious attempt.
But it is what it is and we need to keep taking out the ASK or hitting the ASK when they 'ping us down' with $3 worth of shares.