An individual or group tried to cellar box the stock because they thought it was left for dead to be delisted. Management has come through for shareholders and the surprise attack by management on the long term short position most likely initiated by a hedge fund is going to lead to financial death for shorty.
Keep accumulating against the box as it is most likely additionally shorted shares that are trying to contain the absolutely strong retail accumulation that has been taking place.
The first knife to be stuck in the shorts back will be the uplisting to Pink current and managements commitment to not reverse the stock. The shorts better start buying or they will soon transfer their wealth to the retail $PVSP shareholder.