Atna Resources Ltd., which filed for bankruptcy protection in November, said its shares will no longer be traded and that its assets have been auctioned off. On Monday, the Golden mining company said its shares won't be traded after next week. "As the company has no present expectation that it will ever be in a position to remedy its failure to make its annual continuous disclosure filings, the company expects that (Canadian authorities), will proceed, within the next week, to issue a cease trade...