Who owns UMA Coin?

Could you please clarify who exactly owns UMA Coin? Is it a centralized entity or is it a decentralized network where multiple individuals hold a stake? Is there a specific foundation or group of individuals that manage the coin and its ecosystem? Additionally, is there a way for the general public to purchase UMA Coin and become part of the ownership structure? I'm interested in understanding the ownership dynamics of UMA Coin and how it differs from other cryptocurrencies.