A former associate with Goldman Sachs was sentenced last week to four years and nine months after being accused of masterminding a broad insider-trading conspiracy, according to the New York Times.

Eugene Plotkin, 28, was arrested in April 2006 in the first of many insider-trading cases brought by the Securities and Exchange Commission.

Working with David Pajcin, a former co-worker, Plotkin was able to reap about $6.5 million through the use of illegal market tips from a former Merrill Lynch analyst, a New Jersey postal worker who served on a grand jury and two workers at a BusinessWeek printing press in Wisconsin .

Plotkin and Pajcin were accused of passing information to a number of other people, including Plotkin’s father and several international investors.

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