Mo. Rev. Stat. § 379.560
If the assent be obtained as provided in section 379.535, but there be any stockholders or policyholders who have not at such meeting given their assent to such propositions to reorganize and extend and continue the corporate existence of the company under the general insurance statutes of the state, and such stockholders or policyholders shall not thereafter and prior to the expiration of the time herein provided for the filing of the petition of said company in the circuit court have delivered to such company their written assent or ratification of such propositions, then such equitable interests or proportions, if any, as such stockholders or policyholders not so assenting or ratifying such propositions have in the net assets which such company had at the time originally limited by law or its charter for the termination of its corporate existence shall be ascertained and paid and distributed to them as herein provided.
§ 379.560, RSMo