N.D. Cent. Code § 26.1-12.1-11
A membership interest in a domestic mutual insurance holding company does not constitute a security as defined in section 10-04-02. No member of a mutual insurance holding company may transfer or pledge membership in the mutual insurance holding company or any right arising from the membership except as attendant to the valid transfer or assignment of the member's policy in any reorganized insurer which gave rise to the member's membership interest. A member of a mutual insurance holding company is not, as a member, personally liable for the acts, debts, liabilities, or obligations of the reorganized insurer. No assessment of any kind may be imposed upon the members of a mutual insurance holding company by the directors or members, or because of any liability of any company owned or controlled by the mutual insurance holding company, or because of any act, debt, or liability of the reorganized company. A member's interest in the mutual insurance holding company automatically terminates upon cancellation, nonrenewal, expiration, or termination of the member's policy in any reorganized company which gave rise to the member's membership interest.
N.D.C.C. § 26.1-12.1-11