NEW YORK ( TheStreet) -- Two former traders from hedge fund Galleon Group pleaded guilty today to insider trading charges Wednesday, Bloombergreported.

Adam Smith is the seventh person who has agreed to plead guilty and help the government in its case against Galleon co-founder Raj Rajaratnam. Another trader, Michael Cardillo, will assist in a related case, according to Bloomberg. Associated Press reports that there have been 15 guilty pleas in the case.

The Galleon case is the centerpiece to a broad insider trading investigation by the Justice Deptartment.

Earlier this month it was reported that a Morgan Stanley ( MS) investment banker is being investigated for allegedly leaking market-sensitive to Galleon. Separately, a former associate of the firm changed her plea from not guilty to guilty of three counts of conspiracy in regards to the case.

-- Written by Dan Freed in New York.
Disclosure: TheStreet's editorial policy prohibits staff editors, reporters and analysts from holding positions in any individual stocks.

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