UnitedHealth Group Appoints New CFO


John Rex, formerly executive vice president, chief financial officer, Optum, has been appointed chief financial officer of UnitedHealth Group, effective immediately, succeeding David S. Wichmann who will now devote his full energy and attention to his duties as president of the company, according to a press release from UnitedHealth Group.  Rex has also been named a member of the Office of the Chief Executive.

Tami Reller, currently executive vice president and chief marketing officer of Optum, has been named chief financial officer, Optum, effective also immediately.  Before joining Optum she had chief financial officer experience within Microsoft and at Great Plains Software.

As chief financial officer of UnitedHealth Group, Rex assumes oversight responsibilities for Treasury, mergers and acquisitions, and venture and private equity investment activity.  All finance, audit and financial compliance functions report directly to him within UnitedHealth Group and functionally across the enterprise.

Wichmann said, “The deep bench of our leadership team has long been a hallmark of UnitedHealth Group. John Rex has been an exceptional leader at Optum and a highly valued contributor to the enterprise overall, so our company will be very well served with him in his new role.”


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