Who owns SEI?

Who exactly owns SEI? Is it a private company, a public entity, or perhaps a consortium of investors? Are there any individuals or groups with significant controlling interests? How transparent is the ownership structure of SEI? Is there any public information available about the shareholders or beneficiaries? I'm also curious about the legal status of SEI. Is it registered in a particular jurisdiction? And what kind of regulatory oversight does it fall under? Understanding the ownership and legal framework of SEI would greatly help in assessing its credibility and reliability in the cryptocurrency and finance industry.