The Goldman Insider Trader Kept His Weekend Supermarket Job (3)

When Mohammed Zina landed himself a job at Goldman Sachs Group Inc., he also chose to keep working weekend shifts at British supermarket J. Sainsbury Plc.

It was an unusual side job for someone at the investment banking giant, but for Zina, it was a chance to stay grounded. Prosecutors saw him differently — an ambitious risk taker, who used privileged information at the bank to trade illegally.

On Thursday, the latter view won out, when a London jury found the 35-year-old former analyst in Goldman’s Conflict Resolution Group guilty of insider trading and fraud. He will be ...