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Ex-Banker’s Girlfriend Says Trades on Tips Showed Trust

Jessica Mang, one of the ex-girlfriends of former Mizuho International Plc investment banker Thomas Ammann, said she bought shares at his request because she wanted to show that she trusted him.

Mang invested her own money because Ammann demanded it and said they could go on a vacation together afterward, she testified today at a London criminal court. Mang is on trial for insider trading along with Christina Weckwerth, another woman with whom Ammann simultaneously had a relationship.