Wis. Stat. § 180.1005: Amendment before issuance of shares.

If a corporation has not yet issued shares, its incorporators or board of directors may adopt one or more amendments to the corporation’s articles of incorporation. Unless the amendment has been approved by the affirmative vote or the written consent of not less than two-thirds of the shares subscribed for, any subscriber or shareholder who has not voted in favor of or consented to the amendment is released from his or her subscription and is entitled to repayment of any consideration paid for his or her shares upon application to the corporation within 10 days after notice, under s. 180.0141, of the amendment.