R. Allen Stanford

R. Allen Stanford was sentenced on June 14 to 110 years in prison. The former chairman of Stanford Financial Group was indicted on 21 counts in March for a $7 billion fraud. The charges included conspiracy to launder money, fraud, and obstruction of justice.

Photo: Robert Allen Stanford arrives for a bond hearing on June 25, 2009 in Houston, Texas.

L. Dennis Kozlowski

L. Dennis Kozlowski is currently living at a minimum-security prison in Manhattan. He moved as part of a work-release program in January. Kozlowski won't appear before the parole board again until April 2014. The former Tyco CEO was convicted in 2005 of grand larceny, conspiracy and fraud. He was sentenced to 8.33 years to 25 years in prison. Kozlowski initially was at the Mid-State Correctional Facility in New York, a medium security prison. While there, he shared space with rapper Ja Rule and former New York State Comptroller Alan D. Hevesi.

Photo: Former Tyco chief executive L. Dennis Kozlowski, center, leaves the Manhattan Criminal Court after being found guilty on all but one charge June 17, 2005 in New York City.

Raj Rajaratnam

Raj Rajaratnam is currently serving prison time at the Federal Medical Center Devens in Ayer, Mass. The former hedge fund manager and founder of the Galleon Group, a New York hedge fund, was convicted of securities fraud and conspiracy in May 2011. He was sentenced to 11 years in prison, the longest for an insider-trading case.

Photo: Galleon Group founder Raj Rajaratnam, center, exits Manhattan Federal Court after a sentencing hearing on October 13, 2011 in New York City.

Jeffrey Skilling

Jeffrey Skilling, former CEO of Enron, is currently serving a 24-year sentence at the Federal Correctional Institution in Englewood, Colo. Recently he was joined by former Illinois Governor Rod Blagojevich who was convicted in June 2011 on 18 counts of corruption. In 2005, Skilling was convicted on 19 counts, including fraud and insider trading and conspiracy. Last year, Skilling tried to get the decision overturned on possible errors in his trials, but a U.S. court of appeals upheld the decision.

Photo: Former Enron CEO Jeff Skilling, center, walks to the Bob Casey U.S. Courthouse with his attorney Daniel Petrocelli, right, for his fraud and conspiracy trial May 25, 2006 in Houston.

Bernard Madoff

Bernie Madoff is currently in prison at the Butner Federal Correction Complex in North Carolina. He was sentenced to 150 years in prison in 2009 for operating a $65 billion Ponzi scheme, the largest in American history through his firm, Bernard L. Madoff Investment Securities LLC. His convictions included charges of fraud, money laundering and perjury. Some of his victims started receiving money back in October 2011.

Photo: Bernard Madoff arrives at Manhattan Federal court on March 12, 2009 in New York City.

Joseph Nacchio

Joseph Nacchio is currently serving his six-year sentence at a federal prison in Minersville, Penn. The former Qwest Communications CEO was convicted for insider training in 2007. After failed attempts at appealing the decision, he reported to Federal Correctional Institution Schuylkill in 2009.

Photo: Former Qwest Communications CEO Joseph Nacchio, left, talks to the media as he leaves the federal courthouse in Denver with his attorney Herbert Stern, right, after being released on $2 million bond on Dec. 20, 2005.

Bernie Ebbers

Bernie Ebbers is currently serving a 25-year sentence at the Oakdale Federal Correctional Institution in Louisiana. The former WorldCom CEO was convicted in 2005 of conspiracy, securities fraud and filing false documents with regulators after his involvement in an $11 billion fraud within the company.

Photo: Former WorldCom executive Bernie Ebbers, center, leaves the federal building for an arraignment in custody March 3, 2004 in New York City.

Sam Waksal

Sam Waksal is currently the founder and CEO of Kadmon Pharmaceuticals, a new venture he started after his after his release from jail in January 2009. The former ImClone CEO was convicted in 2002 for insider trading, bank fraud and perjury. He was sentenced to seven years in prison, but served just over five years for participating in a prison rehab program for substance abusers and was released in 2008.

Photo: Sam Waksal leaves Federal Court after being sentenced for the insider trading scandal on June 10, 2003, in New York.