Because putting more items into filings costs money and creates the possibility of liability if anything is off. Think of your tax return. Rigorous legal and fi

Because putting more items into filings costs money and creates the possibility of liability if anything is off. Think of your tax return. Rigorous legal and financial document preparation is expensive. Large corporations can afford the bloat of thousands of regulatory requirements, smaller companies not so much. These added costs are borne by society in the long run, similar to how airline security regulations sometimes cause tickets to cost nearly two times what the original fare would be. This regulation isn't vital for informing investors of the performance of a company (this kind of ratio can be done by anyone who cares to do so using already available information).