Who is Coinbase owned by?

Could you please elaborate on the ownership structure of Coinbase? Who are the primary shareholders or stakeholders in this cryptocurrency exchange giant? I'm curious to know if it's privately held or publicly traded, and if there are any significant investors or venture capital firms with a controlling stake. Additionally, is there any information available regarding the founders' or key executives' ownership percentages? I'm interested in understanding the overall financial landscape and governance of Coinbase to get a better sense of its operations and strategic direction.