Who owns Bitfinex?

I'm curious to know, could you elaborate on the ownership structure of Bitfinex? Who exactly are the individuals or entities that hold the reins of this cryptocurrency exchange? Is it a publicly traded company, or is it privately owned? I'm also interested in knowing if there have been any changes in ownership over the years, and if so, what were the reasons behind those changes? It would be great to gain a clearer understanding of the corporate landscape that governs Bitfinex.