Billionaire Cohen Cuts His Metro Bank Stake for Third Time (Bloomberg) The private investment vehicle of billionaire hedge fund manager Steven Cohen has cut its stake in Metro Bank Plc for the third time in less than a week. Cohen Private Ventures reduced its holding in Metro from 7.7% to 6.5% last week, according to a U.K. regulatory filing. The Connecticut-based tycoon’s vehicle remains the biggest investor in Metro, although its holding has dwindled from almost 10%.