Who is AIA owned by?

Could you please clarify who the owner of AIA is? I'm interested in understanding the company's ownership structure and who ultimately holds the reins. Is it a publicly traded company with shareholders, or is it privately owned by a single entity or group of individuals? Additionally, if there have been any significant changes in ownership over the years, I would appreciate an overview of those developments as well. Thank you for your assistance in shedding light on this matter.