Airtel Uganda plans to raise as much as 800-billion shillings ($216-million) in an initial public offering, making it the nation’s biggest share sale. The company priced its IPO at 100 shillings apiece valuing the nation’s second-biggest telecommunications carrier at four-trillion shillings. The unit of billionaire Sunil Mittal’s Airtel Africa Plc is selling a 20% stake, or 8 billion shares, on the Uganda Securities Exchange to fulfill a regulatory requirement.