Peter Lattman And Azam Ahmed The New York Times

Federal prosecutors are expected to file criminal charges on Wednesday against Rajat K. Gupta, the most prominent business executive ensnared in an aggressive insider trading investigation, according to people briefed on the case.

As Raj Rajaratnam and Anil Kumar, a McKinsey consultant, walked out of a fund-raiser in Manhattan, Mr. Rajaratnam pulled his old friend aside and made him an offer: would Mr. Kumar provide him with insights for $500,000 a year?"You have such good knowledge that is worth a lot of money to me," he said, according to Mr. Kumar.Mr. Kumar faced an agoni...

Federal prosecutors are expected to file criminal charges on Wednesday against Rajat K. Gupta, the most prominent business executive ensnared in an aggressive insider trading investigation, according to people briefed on the case.

As Raj Rajaratnam and Anil Kumar, a McKinsey consultant, walked out of a fund-raiser in Manhattan, Mr. Rajaratnam pulled his old friend aside and made him an offer: would Mr. Kumar provide him with insights for $500,000 a year?"You have such good knowledge that is worth a lot of money to me," he said, according to Mr. Kumar.Mr. Kumar faced an agoni...