Actually there's no one should control the price of Bitcoin due to the fact that it was decentralized unlike Fiat, however, those persons who own a large portion of Bitcoin which is basically the whales do have a big impact on the market price. Like if they choose to hold their coins, of course, the demand will go up and that would make the price goes up as well, and it will be the same if they choose to sell-off. The next thing I believed that has a major influence on the price is the crypto influencers, remember when Elon mentioned Bitcoin in his Twitter account it surely made hype in the market.