A former McKinsey & Co partner who assisted Goldman Sachs Group, Inc. on its recent purchase of a financial technology company has been sentenced to 24 months in prison for insider trading on the takeover. Puneet Dikshit, 41, was sentenced in federal court in Manhattan on Wednesday by U.S. District Judge Colleen McMahon. He had pleaded guilty on Dec. 15 to one count of securities fraud in connection with his scheme to commit insider trading based on material, nonpublic information regarding the upcoming public announcement that the Goldman Sachs Group, Inc—which he and his management consulting firm were advising—would be acquiring fintech lender GreenSky Inc. Dikshit, who was one of the McKinsey partners leading the engagements, was also ordered by McMahon to forfeit $455,017, representing his illegal profit. The defendant admitted that he bought GreenSky call options, a bet that the company’s stock price would rise, shortly before the $2.24 …