Each company will be able to trade via the stock market up to 49% of the company shares (Company choise).
This way, a big company will not be able to buy a smaller one, and if a company goes bankrupt, the value of the stock goes to zero and the investors lose money. (or maybe the central bank will buy the shares back at 10% of the last value).
Also it is not a cash transfer since a company which chooses to go public is actually giving a proportion of its future profits into other companies (investors).