Who owns Polkadot?

I'm curious to know, who actually owns Polkadot? Is it a centralized entity, or is it more decentralized in nature? Polkadot seems to be gaining a lot of attention in the cryptocurrency world, and I'm wondering about its ownership structure. Could you provide some clarity on this matter? Is there a single individual or organization that holds the reins, or is it a collaborative effort among multiple stakeholders? I'm eager to understand the dynamics behind Polkadot's ownership and governance.