By Leah Montebello In a quest to keep staff happy, TikTok’s parent firm ByteDance is reportedly initiating a second stock option buyback for staff at a higher price than the previous one. The Chinese company told staff via email that those eligible can apply to cash out their Restricted Stock Units (RSUs), ByteDance’s stock option programme. It offered $155 per unit, up from the $142 price set in the buyback earlier this year, two of the employees told Reuters. ByteDance, which is one of the most valuable private tech firms in the world and has around 110,000 employees, said the higher price w…