A shareholder of a professional corporation may sell or transfer shares in the professional corporation only to another individual licensed to render the same professional service as that for which the professional corporation was formed. The articles of incorporation may provide specifically for restraints on the alienation of shares and may require the purchase, redemption, or retirement of shares by the corporation at a price and in a manner set out in the articles. The articles may authorize the corporation's board of directors or its shareholders to adopt bylaws restraining the alienation of shares and providing for their purchase, redemption, or retirement by the corporation.