Nike Inc. NKE, -0.64% said late Tuesday Chief Executive Mark Parker will step down in 2020, and its board has appointed board member John J. Donahoe II as president and chief executive officer effective Jan. 13. Donahoe will continue to serve as a board member. Parker will become executive chairman of the board on that date. Donahoe has been a director of the company since June 2014, and has been president and chief executive officer of ServiceNow, Inc. NOW, -5.21% since 2017. Donahoe also serves as a board member of ServiceNow and held executive positions with PayPal Holdings, Inc. PYPL, -4.02% and eBay Inc. EBAY, -0.82%. Nike shares were flat in the extended session after ending the regular trading day down 0.6%.