Under Armour, Micron Technology and more

Shoppers pass an Under Armor store in White Plains, New York.
Scott Mill | CNBC
Check out the companies making headlines by the hour:
Micron technology — The semiconductor stock fell about 2% in after-market trading after earnings and revenue for the fiscal first quarter fell short of Wall Street expectations. Micron Technology also said it expects a wider-than-expected adjusted loss of 62 cents per share for the current period.
Under Armour — Under Armour̵[ads1]7;s shares were seen in extended trading following news that Marriott International President Stephanie Linnartz will join the athletic apparel company as its next CEO. The shares were last traded around 1% lower.
MillerKnoll — Shares of MillerKnoll jumped 6% in extended trading after the office furniture maker beat top- and bottom-line estimates for its fiscal second quarter. Guidance for the current quarter fell roughly in line with expectations from analysts surveyed by StreetAccount.