Public companies now own over 1 million BTC, which is roughly 5% of all Bitcoin in existence. At the forefront is Strategy, holding a whopping 636,505 BTC. Bitcoin is becoming scarcer, and the accumulation by big players is only heating up the market.
This may likely not be so much of a great news to those who are core believers in decentralization and all, and another potential issue is the fact that if this companies acquiring bitcoin manages to buy up 30 to 50% of the entire bitcoin circulating supply, they likely can one day team up to manipulate the price of Bitcoin, the situation can even be worser if it's possible for them to acquire 100% of the bitcoin circulating supply, but I believe this is likely impossible to happen since the price of Bitcoin may have become extremely expensive..
But lets assume this companies were or are able to achieve such a goal, its going to be very bad because what ever price they choose is exactly the price we all will be forced to be buying bitcoin at.