Briefs

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The data-mining strategy yielded one of its first cases in February, when the SEC and U.S. prosecutors charged takeover advisers at UBS AG and Blackstone Group LP with taking part in an $8 million insider-trading case, people familiar with the inquiry said. Authorities used a "novel" technique to detect the scheme, the SEC�s lead investigator on the case, Daniel Hawke, said at the time, without elaborating.

While the investigation of Rajaratnam didn�t stem from the data-mining project, it did start with the SEC�s identification of suspicious trades, people with knowledge of the case said.

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