Who owns Iris Energy?

Could you please clarify for me the ownership structure of Iris Energy? I understand that they are a prominent player in the renewable energy and cryptocurrency mining sectors, but I'm curious about who exactly holds the controlling interest in the company. Are they a publicly traded company, or are they privately owned? If they are publicly traded, what's their ticker symbol, and on which exchange can I find their shares? Alternatively, if they're privately held, who are the primary stakeholders and investors in the company? I'm particularly interested in gaining a deeper understanding of their corporate governance and ownership dynamics.