Question: Name the American author and former stockbrocker who pleaded guilty to fraud in 1999 after his brokerage house, Stratton Oakmont, defrauded many of its shareholders?

Context articles: The Wolf of Wall Street (2013 film)
Bob Ney
Stratton Oakmont
William J. Toye
Laura Pendergest-Holt
Jordan Belfort
Marc Dreier
Paul Greenwood (money manager)
Danny Porush
Michael Williamson (Australian unionist)

The Wolf of Wall Street is a 2013 American biographical black comedy crime film directed by Martin Scorsese and written by Terence Winter, based on the memoir of the same name by Jordan Belfort.
 It recounts Belfort's perspective on his career as a stockbroker in New York City and how his firm Stratton Oakmont engaged in rampant corruption and fraud on Wall Street that ultimately led to his downfall.
 Leonardo DiCaprio (who was also a producer) stars as Belfort, with Jonah Hill as his business partner and friend Donnie Azoff, Margot Robbie as his wife Naomi Lapaglia and Kyle Chandler as Patrick Denham, the FBI agent who tries to bring him down.
 Matthew McConaughey, Rob Reiner, Jon Favreau, Joanna Lumley and Jean Dujardin also star.
 The film marks the director's fifth collaboration with DiCaprio, after "Gangs of New York" (2002), "The Aviator" (2004), "The Departed" (2006) and "Shutter Island" (2010), as well as his second collaboration with Winter after the television series "Boardwalk Empire" (2010–14).
Robert William Ney (born July 5, 1954) is an American politician from the U.S. state of Ohio.
 In 2007, he was convicted on charges of corruption and sentenced to 30 months in jail.
 A Republican, Ney represented Ohio's 18th congressional district in the U.S. House of Representatives from 1995 until November 3, 2006, when he resigned.
 Ney's resignation took place after he pleaded guilty to charges of conspiracy and making false statements in relation to the Jack Abramoff Indian lobbying scandal.
 Before he pleaded guilty, Ney was identified in the guilty pleas of Jack Abramoff, former Tom DeLay deputy chief of staff Tony Rudy, former DeLay press secretary Michael Scanlon and former Ney chief of staff Neil Volz for receiving lavish gifts in exchange for political favors.
Stratton Oakmont, Inc. was a Long Island, New York, "over-the-counter" brokerage house founded by Jordan Belfort.
 It defrauded many shareholders leading to the arrest and incarceration of several executives, and the closing of the firm.
William James Toye (born August 15, 1931) is an art forger in Baton Rouge, Louisiana.
 He paints in styles copied from Paul Gauguin, Pierre-Auguste Renoir and Alfred Sisley; Toye has also copied the style of Claude Monet.
 Toye, his wife, and Robert E. Lucky, a New Orleans art dealer, were indicted on charges of conspiracy to commit mail fraud in 2010.
 On June 6, 2011, Toye pleaded guilty to conspiracy to sell counterfeit Clementine Hunter paintings, to misrepresenting the authenticity and origin of the paintings, and to painting the counterfeited Hunter artwork.
 William and Beryl Toye plead guilty to mail fraud charges in 2011 and were sentenced to two-years probation and ordered to pay $426,393 in restitution to the victims of the fraud.
 Robert Lucky was also convicted of mail fraud in January 2012 and was sentenced to 25 months in prison.
Laura Pendergest-Holt (born July 23, 1973) is a convicted Ponzi scheme artist, financier, and former Chief Investment Officer of Stanford Financial Group, who was charged with a civil charge of fraud on February 17, 2009.
 On May 12, 2009, Pendergest-Holt was indicted by a federal grand jury on two counts of a criminal complaint of obstructing a fraud investigation and conspiracy to obstruct justice.
 In early 2009, Stanford Financial became the subject of several fraud investigations, and on February 17, 2009, Pendergest-Holt was charged by the U.S. Securities and Exchange Commission with fraud and multiple violations of U.S. securities laws for alleged "massive ongoing fraud" involving $8 billion in certificates of deposits.
 The FBI raided three of Stanford's offices in Houston, Memphis, and Tupelo, Mississippi.
 On February 27, 2009, the SEC amended its complaint to describe the alleged fraud as a "massive Ponzi scheme".
 On June 21, 2012, she pleaded guilty to obstructing a U.S. Securities and Exchange Commission investigation into Stanford International Bank, the Antiguan offshore bank owned by Robert Allen Stanford.
 On September 13, 2012, Holt was sentenced to three years in prison, followed by three years of supervised probation.
 She was released on April 23, 2015.
Jordan Ross Belfort ( ; born July 9, 1962) is an American author, motivational speaker, and former stockbroker.
 In 1999, he pleaded guilty to fraud and related crimes in connection with stock-market manipulation and running a boiler room as part of a penny-stock scam.
 Belfort spent 22 months in prison as part of an agreement under which he gave testimony against numerous partners and subordinates in his fraud scheme.
 He published the memoir "The Wolf of Wall Street", which was adapted into a film and released in 2013.
Marc Stuart Dreier (born May 12, 1950) is a former American lawyer who was sentenced to 20 years in federal prison in 2009 for committing investment fraud using a Ponzi scheme.
 He is scheduled to be released from FCI Sandstone on October 26, 2026.
 On May 11, 2009, he pleaded guilty in the United States District Court for the Southern District of New York to eight charges of fraud, which included one count of conspiracy to commit securities fraud and wire fraud, one count of money laundering, one count of securities fraud, and five counts of wire fraud in a scheme to sell $700 million in fictitious promissory notes. Civil charges, filed in December 2008 by the U.S. Securities and Exchange Commission, are pending.
Paul Greenwood (born 1947) is an American money manager who was convicted of securities fraud with business partner Stephen Walsh.
 He was arrested with Walsh on February 24, 2009.
 The total fraud is estimated at between $550 million and $670 million.
 On July 28, 2010, he pleaded guilty to securities fraud.
 On December 3, 2014 he was sentenced to a decade in Federal prison by Manhattan U.S. District Judge Miriam Goldman Cedarbaum, who told him "many people today lost many thousands of dollars as a result of your fraud."
 Greenwood is a Federal prison inmate (# 61989-054), incarcerated at the Federal medium security prison in Butner, NC.
 His scheduled release date is 11/30/2023.
Daniel Mark Porush (born February 1957) is an American entrepreneur and former stock broker who is known for his supervision of a "pump and dump" stock fraud scheme in the 1990s.
 In 1999, as the president of Stratton Oakmont brokerage house, Porush was convicted of securities fraud and money laundering, for which he served 39 months in prison.
 The character of Donnie Azoff in the popular 2013 film "The Wolf of Wall Street" was loosely based on Porush.
Michael Alexander Williamson (born 26 June 1953) is an Australian former trade union official implicated in the Health Services Union of Australia (HSU) expenses scandal.
 In October 2013 Williamson pleaded guilty to two charges of fraud totaling nearly A$ 1 million, one charge of fabricating invoices and another charge of recruiting others to hinder a police investigation.
 The same day that he pleaded guilty, Williamson declared himself bankrupt.
 An earlier independent report commissioned by the union detailed that companies associated with Williamson and his family had allegedly fraudulently received more than $5 million from the union in period from 2006 to 2011.
 In the NSW District Court in March 2014, Williamson was sentenced to sevenandahalf years of imprisonment; with a nonparole period of five years.