Who owns Lmax group?

Could you please clarify who exactly owns the LMAX Group? Are they a publicly traded company with shareholders, or is there a single owner or a group of owners? I'm interested in understanding the ownership structure of this company, as it could provide valuable insights into their business strategy and potential future directions. Additionally, is there any information available about the background and experience of the owners or key executives at LMAX Group? This could help me better understand their vision for the company and their approach to the cryptocurrency and finance industry.