375.500.  Distribution of assets. — 1.  Whenever any company has been or shall be adjudged insolvent, or shall be or has been dissolved, if a distribution of its assets among its policyholders and creditors is or shall be decreed, it shall be the duty of the director of the department of commerce and insurance to hold all securities on deposit for the benefit of all policyholders in such company, whether the claims of such policyholders are in judgment or not, to reduce such securities to money, and when so reduced, to apply the same, less the expenses herein provided for, to the liquidation of policy claims pro rata; in case there should be any surplus after the payment of all policy claims in full, such surplus shall become a part of the general assets of the company.

  2.  If the policy claimants are not paid in full out of the proceeds of said securities, they shall be entitled to share in the distribution of its general assets for the remainder of their claims, as is provided by law, and as to said remainder shall not be charged with the amount received by them on their policy claims out of the proceeds of said securities; provided, however, that when said securities have been deposited to secure registered policies or annuity bonds, as provided by sections 375.010 to 375.920, the proceeds of the securities so deposited shall be first applied to the payment of the registered policies and annuity bonds, for the security of which the same were deposited.