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, and to the rights and restrictions in the articles of incorporation. The clause serves two functions. First, the clause warns the purchaser of these restrictions, giving them a chance to get information before purchasing the shares. Second, the shareholder agrees to be bound, and can’t later argue they knew nothing about the restrictions.