(SEC); US security and exchange commission is a body in the United States that has 3 main part mission.
They maintain fair, orderly and efficient market,they also protect investors as well as facilitate capital formation.
SEC enforced some laws to companies that publicly sell stocks,this enforced laws covers the fact that broker dealers,public companies as well as certain insiders are all required to make a regular fillings with SEC. These financial professionals and investors solely rely on these fillings with SEC to get information about companies they are evaluating for the purpose of investment.