(a) Reduction of the capital stock of a domestic stock insurer shall be by amendment of its articles of incorporation. No such reduction shall be made which results in capital stock less in amount than the minimum required by this title for the kinds of insurance thereafter to be transacted by the insurer.
(b) No surplus funds of the insurer resulting from a reduction of its capital stock shall be distributed to stockholders, except as a stock dividend on a subsequent increase of capital stock, or upon dissolution of the insurer, or upon approval by the Commissioner of a distribution upon proof satisfactory to him that the distribution will not impair the interests of policyholders or the insurer's solvency.
(c) Upon such reduction of capital stock, the insurer's directors shall call in any outstanding stock certificates required to be changed pursuant thereto, and issue proper certificates in their stead.