SEC rule is that the company cannot purchase more than 25% the stock's rolling 4 week average daily trading volume.

Do the calculation yourself.. http://finance.yahoo.com/q/hp?s=PTSC&a=10&b=01&c=2012&d=10&e=28&f=2012&g=d

As to Ron's post .. IF ANY of these are company trades, I don't believe they are from a prearranged schedule of automatic buybacks. By my recollection, the previous Buyback acquisitions, which must be disclosed in the Qs, are of dissimiliar quantities (taking into account minor price differences during the Q periods), indicating to me that those buybacks were not initiated from a set Dollar or Quantity schedule.

That said, I do NOT believe any significant Share acquisitions are occurring by the company, they are just not in the financial position to speculate and further deplete our dwindling Treasury; even if they feel a successful Markman will result. Unfortunately, I also don't believe they can at this late stage retire enough stock to make the kind of major dent in the float that Shareholder have needed and might have been achieved if doing so rose to the level of a concerted corporate goal over the past 2-4 years.

Like their long history of faulty business decisions, the Leadership of this company is usually too late and too slow to make impacts which lead to increasing Shareholder value.