INSIDER TRADING

Federal prosecutors investigated Galleon Group hedge fund founder Raj Rajaratnam on suspicions of insider trading more than a decade before he was charged with securities fraud, the Wall Street Journal reported, citing legal filings.

U.S. securities regulators have stepped up their probes of hedge funds and are asking some firms to hand over information about their performance and trades, a source familiar with the matter said on Wednesday.

The internal watchdog for the U.S. Securities and Exchange Commission is probing whether enforcement staff committed acts of negligence in conducting an insider trading investigation.

U.S. regulators are increasingly looking beyond stocks in their insider trading investigations to examine derivatives and credit default swaps, a top Securities and Exchange Commission official said.

Federal securities regulators won an insider trading case when a jury in Boston ruled that a former Fidelity employee illegally profited from trading stocks that the mutual fund giant was buying for itself.

Galleon Group hedge fund founder Raj Rajaratnam attacked a U.S. regulator's lawsuit on Tuesday, denying insider trading charges and saying government wiretaps violated his constitutional rights.

Galleon Group hedge fund founder Raj Rajaratnam, accused in one of the biggest insider trading cases ever, on Tuesday gave a detailed denial of the charges and said government wiretaps violated his constitutional rights.

Raj Rajaratnam, the billionaire founder of hedge fund firm Galleon Group, denied federal insider trading charges and accused the government of violating his constitutional rights with its use of wiretaps.

Raj Rajaratnam, the billionaire founder of Galleon Group, on Tuesday rejected federal insider trading charges, and accused the government of violating his constitutional rights with its use of wiretaps.

Galleon Group founder Raj Rajaratnam denies SEC insider trading charges, according to a court filing by his lawyers on Tuesday with the U.S. District Court for the Southern District of New York:

In a filing with the U.S. District Court for the Southern District of New York on Tuesday:

Roomy Khan, one of several former traders cooperating with the prosecution of the biggest U.S. hedge fund insider trading case, told a judge she provided confidential information to several co-conspirators, according to a court document made public on Thursday.

Roomy Khan, one of several former traders cooperating with the prosecution of the biggest U.S. hedge fund insider trading case, told a judge she tipped several people at hedge funds with inside information on companies to make money from trades, according to a court document.

A top U.S. securities regulator said some funds may now view insider trading as a central tenet of their business models, rather than as a one-time opportunity for big rewards as sometimes happened in the 1980s.

Fourteen people were charged with fraud and conspiracy in a dramatic widening of an insider trading scandal that has ensnared hedge fund managers, top Silicon Valley executives and a bevy of white-shoe advisers.

Widespread recovery doubts; More Caught in Trading Scandal; Microsoft-Yahoo Pact May Go Global

Fourteen people were charged with fraud and conspiracy in a dramatic widening of an insider trading scandal that has ensnared hedge fund managers, top Silicon Valley executives and a bevy of white-shoe advisers.

Nine more people have been arrested in the Galleon Group insider-trading scandal, bringing to 15 the number charged in the biggest hedge fund-related case in history.

McKinsey & Co and Akamai Technologies Inc launched investigations on Wednesday into accusations by the U.S. government that some of their employees were linked to the Galleon Group insider-trading scandal.

Insider traders may have taken the greed-is-good mantra to heart, but it's not the only thing that motivates them.

The linking of Advanced Micro Device's former top executive to the largest U.S. insider trading scheme in decades may raise questions about its business practices -- and that of the chipmaking venture, Globalfoundries, that it spun off.