A few individuals hold a disproportionately large share of most cryptocurrencies. But holding such big positions in the coins is not the same thing as controlling their price.
Market price manipulation really embarrassing and it only ruin crypto. But we can't rid out those individuals involved into this since this is a free market and they have freedom to bring power into crypto. Mainly, they are huge investors in crypto and they are currently holding a large amount of crypto coins which could be easily for them to dump and pump prices anytime.