Henry Stafford, who has been with Under Armour for six years, plans to leave the company in July. He has been most recently UA's chief merchandising officer, and Kip Fulks, the global marketing manager, will take on his responsibilities on an interim basis. The chief digital officer of the group, Robin Thurston, is also set to leave in July. He will be replaced by Michael Lee, a co-founder of MyFitnessPal who is currently UA's senior vice president of digital operations for North America.