Wisconsin Statutes Transportation (Ch. 189 to 195) § 193.631. Restriction on transfer or registration of membership interests

(1) How imposed. A restriction on the transfer, including registration, of a membership interest may be imposed in the articles, in the bylaws, in a member control agreement, by a resolution adopted by the members, or by an agreement among or other written action by members or among them and the cooperative. A restriction imposed by a member control agreement or other written action of members is effective only against the parties to the agreement or written action or the members who assent pursuant to a member resolution. A restriction is not binding with respect to membership interests issued prior to the adoption of the restriction, unless the holders of those membership interests are parties to the agreement or voted in favor of the restriction.