Mo. Rev. Stat. § 375.430

Whenever any judgment shall be obtained in any of the courts of this state against any insurance company doing business in this state, and said judgment shall remain unsatisfied for fifteen days after execution shall have been lawfully issued thereon, the certificate of authority or license to do business issued or granted to such insurance company shall immediately be suspended or revoked by the director of the department of commerce and insurance, upon said director being notified thereof, and such insurance company shall, after such suspension or revocation, be prohibited from transacting any business in this state until such judgment shall be satisfied.