Pershing Square Capital Management, the hedge fun run by Bill Ackman, has sold all of the almost 8 million Corrections Corp. of America shares it held early this year. Ackman, who dove into CCA late in the summer of 2009 and held almost 10 percent of the company, looks to have made some money on his prison management bet: CCA shares (Ticker: CXW) rose quickly as he was building his stake, but have lagged the S&P 500 by 20 points since.