(1) Any such stock life, disability, casualty, title or fidelity and surety insurer may by provision in its articles of incorporation or by amendment thereto made as in section 5215 provided authorized the reduction of its capital at any time and it may reduce its capital in conformity therewith. A certificate stating the fact that such reduction has been made in conformity with the articles of incorporation or amendments thereto, giving the wording of the resolution authorizing the same and the vote thereon, specifying the manner in and the extent to which the capital of the corporation is to be reduced, shall be made and filed as provided for certificates of amendment to the articles of incorporation.

  (2) No such reduction, however, shall be made in the capital of the insurer unless the assets of the insurer remaining after such reduction are sufficient to pay any debts of the insurer, the payment of which shall not have been otherwise provided for, nor if in the opinion of the commissioner to whom such certificate shall be submitted before being filed such reduction of capital shall endanger the protection of policyholders. Upon such certificate being so made and filed, the capital of the insurer shall thereby be so reduced.

  (3) Such reduction of the capital of the insurer may be effected by retiring or reducing the outstanding shares of any class or by drawing the necessary number of the outstanding shares of any class by lot for retirement or by the exchange by the holders of outstanding shares of any class of the shares of such class held by them for a decreased number of shares of stock of the same or of a different class of stock or by reducing in the manner herein provided the par value of the shares of any class of stock having par value, or where the amount of capital represented by shares of stock having par value exceeds such par value by reducing the amount of capital represented by such shares by an amount not greater than such excess, or in case the capital shall have been increased by the transfer thereto from surplus pursuant to any provision of law so authorizing and the transfer shall not have been made in respect of any designated class or classes of stock by retransferring to surplus all or any part of the amount by which capital shall have been so increased or by the purchase of shares for retirement either pro rata from all holders of shares of that class or stock or by purchasing such shares from time to time in the open market or at private sale in both cases at not exceeding such price or prices as may be fixed or approved by the stockholders entitled to vote upon the reduction of capital to be effected in that manner or by retiring shares owned by the corporation. If such reduction of capital of the corporation be effected by retiring shares then if the consent or resolution of stockholders above referred to shall so provide an amount not exceeding that part of the capital of the insurer represented by such shares may be charged against or paid out of the capital of the insurer in respect of such shares. If such reduction of capital shall have been effected by retiring or reducing the outstanding shares of any class in any manner above mentioned including the retirement of shares already owned by the insurer, the filing of said certificate as herein provided containing a recital of such fact shall constitute an amendment to the articles of incorporation effecting a reduction of the authorized capital stock of the insurer to the extent of the aggregate par value of such shares and if such shares constitute all the outstanding shares of any particular class shall have the effect of eliminating from the articles of incorporation all reference to said particular class of stock.