The lead money manager for Microsoft Corp co-founder Paul Allen is leaving his post this week, marking the latest in a round of high-level departures at the Seattle billionaire’s Vulcan Inc organization, which handles his $16 billion fortune. Paul Ghaffari, who has been chief investment officer of Vulcan Capital – Allen’s private investment unit – since 2010, will leave on Friday, Vulcan said in a statement on Monday. “We appreciate Paul’s service at Vulcan and the contributions he made to growing and expanding our investments across all stages of corporate development,” said Jody Allen, chief executive of Vulcan Inc and Paul Allen’s sister.