Bitcoin is decentralized which means no one person or company can control it.Yes, bitcoin can be manipulated by directly or indirectly for example positive or negative news can trigger panic sell or pump, whales also affect bitcoins price like any other investment options.Every investment options can be manipulated. Bitcoin is just too volatile to predict where prices would go.
^ Definitely right, as the as other investments when it comes to the market price BTC is also can be manipulated when it comes to the price but if someone who will ask who controlled BTC, there is no single entity who is controlling BTC or even a company behind the BTC because BTC is decentralized and controlled on it. Some reason why whale takes such actions, making fake news that makes traders becomes FUD and FOMO in order to that new investors will be afraid and sell their holding coins that become too lowes the price.