The Trade Desk data chief exits company
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   The Trade Desk (NASDAQ:TTD) Chief Data Officer Michelle Hulst is departing her role effective today.    The company and Hulst "agreed that Ms. Hulst will step down from her current position effective as of July 29, 2022."    The Trade Desk stock (TTD) is 8% lower premarket, caught up in an ad-tech downdraft after disappointing guidance from Roku, down 24.2% premarket itself.