I previously considered the possibility that if Adage was short its own shares and could not find enough to cover plus buy more to be net long again they could sell some (or deliver some of their own shares and do a filing) to cause others to sell, therefore freeing up shares for purchase. I looked into the insider short term swing trade rule. I don't believe it applies to Adage if it closed out a boxed short position, because it is a zero sum gain. Implication: they could rebuy whenever they want, with no penalty.