TikTok logo is displayed on the screen of a smartphone. The exercise is optional. U.S. employees were given the same deal earlier this year. ByteDance, which owns popular short video app TikTok, on Wednesday told employees outside of the U.S. that it is willing to purchase restricted stock units (RSU) or options from them for $160 each, up from the $155 price it was offering in April, a person familiar with the matter, who was not authorized to speak publicly, told CNBC. Chinese technology giant ByteDance is offering to buy back stock options from employees at a higher price than...