David howson announces executive changes

Cboe global markets, inc. announced that mark hemsley, executive vice president at cboe global markets and president of cboe europe, is planning to retire from the company at the end of february 2020. david howson, chief operating officer of cboe europe has been named his successor and plans to assume the role of executive vice president at cboe global markets and president of cboe europe beginning january 1, 2020.
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