Who is the biggest shareholder of IAG?

I'm curious to know, who holds the largest stake in IAG, the parent company of British Airways and Iberia? Are there any individuals or entities that stand out as the primary shareholder, or is the ownership spread out among multiple parties? Additionally, has there been any notable changes in the shareholder structure of IAG in recent years that might indicate a shift in control or influence? Understanding the makeup of the company's ownership can provide valuable insights into its strategic direction and potential for future growth.