Who owns the Atlas Corporation?

Could you please clarify who exactly owns the Atlas Corporation? Are there any individuals or entities that hold a majority stake in the company? Are there any known shareholders or investors that have a significant influence on the corporation's operations and decision-making processes? Additionally, are there any publicly available financial statements or regulatory filings that provide more information about the company's ownership structure and management? Thank you for your assistance in helping me understand the ownership of the Atlas Corporation.