Investors use registration rights to force a company to register shares of common stock publicly.
Federal and state securities laws place certain limitations on the transfer of shares that have not been registered. Rule 144 of the Securities Act of 1933 requires that securities be held for at least one year before being sold. Rule 144 also requires that certain current public information about the company be available and limits the volume of shares that can be sold, unless the seller has held the securities for at least two years and is not an affiliate of the company or a director on the board.