If the shareholders have entered into a unanimous shareholders agreement, then all future shareholders must also agree to enter into this agreement. This clause specifies that the purchaser agrees that the shares will be subject to a shareholders’ agreement if such an agreement exists, and that such agreement will supercede the rights and restrictions in the articles of incorporation. The clause warns the purchaser of these potential restrictions, giving such shareholder the chance to ask for information on the shareholders' agreement before purchasing the shares.