Under Armour, Inc., a leading developer, marketer and distributor of branded performance apparel, footwear and accessories, announced the appointment of Carolyn Everson and Patrick Whitesell as members of its Board of Directors effective Feb. 1, 2023. In addition, longtime member Harvey Sanders will retire from Under Armour’s Board on March 31, 2023. As previously announced, Stephanie Linnartz will join the company as President, Chief Executive…