This is all positive for Bitcoin price and I expect more companies to join soon, but I also see potential danger in most of this companies that have their own shareholders who will want to see profits in dollars during this year and only way for that would be selling good amount of BTC.
If we exclude MicroStrategy and Michael Saylor with few other companies who are true believers in Bitcoin, others are mostly not true believers and I expect that at the end of this year we may see a big correction for Bitcoin and all crypto markets after they make some profits.
Some companies buy bitcoin on behalf of their customers and not all of their customers will have demand to take profit at the same time. Bitcoin are traded and changed hands on the market and on those publicly traded companies too.
Sellers sell their bitcoin to buyers and if they are from the same companies, the amount of bitcoin is hold by one company will not change too much.
They take profit and will join again later with corrections as they know how good bitcoin is as an investment and the next halving will make bitcoin scarcity is higher and higher. As rules of demand and supply, price will be higher.