of course, because as you already know that crypto has no regulation, so people can have an unlimited number of bitcoins, even in one wallet account, not only bitcoin, but all types of altcoins, this is what makes the whales able to control the market
there are no regulations governing ownership tax and others do take ownership of an unlimited number of crypto assets very possible.
even some whales that come usually keep their assets in several wallets. they have enough coins that they can make the market move with their abilities.
buy when it's cheap which makes the price go up. then sell when it goes up which results in a decline. We have seen situations like this many times before. especially in meme assets, they move very quickly. some get rich quickly but some are quick to lose.