Yes, you can buy shares in a company that has filed for bankruptcy. The shares are a fraction of what they once were. So buy them.
I think I would 'pump and dump' the shares though. I wouldn't look at it as a long term investment. A day by day strategy or week by week at the most. If you had bought the stocks yesterday, you would be up 20% right now and that is only with a 2.5 cent rise in the stock.
There is some disturbing news about the company though. $1.5 billion in debt, a new CEO, new restructuring expert, and there is no news of either an outright sale of the company or a merger with another company. They are trying to deal with their creditors right now but still no word about it either.
Did I mention they are 1.5 billion in debt? How could they pay that off without either selling the company outright or merging? They couldn't. But if they find either one of those, the stock would soar overnight. It is worth the risk in my opinion.