By Associated Press, Published: May 26 ALEXANDRIA, Va. â A former NASDAQ manager pleaded guilty Thursday to stock fraud after admitting that he made more than $600,000 on insider trading. Donald L. Johnson, 56, of Ashburn, Va., was a managing director on NASDAQâs market intelligence desk until he retired in 2009. Johnson admitted to eight trades between 2006 and 2009 in which he profited roughly $641,000 from information that hadnât been publicly disclosed, prosecutor Justin Goodyear said. In some cases, he bought company shares to capitalize on favorable news; in other cases he used short sales to profit on bad news that sent shares tumbling. The trades were done in his wifeâs name, Goodyear said. Prosecutors estimate that Johnson actually earned more than $750,000 from insider trading, but Johnson denies anything improper regarding a trade that earned him $114,000 profit. Johnson said little during a hearing and declined through his attorney to comment afterward. The lawyer, Jonathan Simms, said Johnson accepts responsibility for his actions. âThis is not a man who was living lavishly, living on yachts,â Simms said. In one 2007 trade, Johnson made $175,000 by purchasing shares of United Therapeutics before successful trial results were announced for one of its drugs â Viveta, now called Tyvaso. In 2009, Johnson admitted using insider information to purchase additional shares of United Therapeutics ahead of federal approval for Tyvaso. Johnson profited by nearly $111,000 on that transaction. Johnson also earned $34,000 in 2006 by trading ahead of the announcement of Digene Corp.âs president by short-selling the companyâs shares. Other companies in which Johnson used insider information to profit include Central Garden and Pet Co., Idexx Laboratories Inc. and Pharmaceutical Product Development Inc. There is no indication that United Therapeutics or any other company did anything wrong by providing insider info to Johnson. In his job at NASDAQ, Johnson was entitled to receive such information, but was barred by federal law and NASDAQâs rules from profiting on the information. NASDAQ spokesman Joe Christinat said the market was cooperating with authorities and declined further comment. In a conference call with reporters, Assistant Attorney General Lanny Breuer said the market intelligence desk Johnson worked for provided client relations for companies traded on the NASDAQ. Companies that might have news that would move financial markets or affect sharesâ trading levels could consult with the market intelligence desk to help understand how markets would react to the news. âMr. Johnson was in fact a fox in a henhouse,â Breuer said. âMr. Johnsonâs actions were a brazen abuse of power. He cheated the system to line his own pockets.â The case was brought in the Eastern District of Virginia, which has an aggressive fraud unit. Johnson agreed to have the case heard in Virginia. âDon Johnson used sensitive, confidential information as an executive at NASDAQ to pad his retirement by more than $600,000,â said Neil MacBride, U.S. attorney for the Eastern District of Virginia. âHe thought he could get away with it by using his wifeâs account and making relatively small trades just a few times a year. But he learned what every other trader on Wall Street must now realize: Weâre watching.â Johnson faces up to 20 years in prison when he is sentenced Aug. 12. Also Thursday, the Securities and Exchange Commission filed related civil charges against Johnson in federal court in New York. Copyright 2011 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed. http://www.washingtonpost.com/busin...nsider-trading/2011/05/26/AGMY7CCH_story.html