(1)    Voting, filing and approval requirements. A bank may amend its articles of incorporation in any manner not inconsistent with law. The amendment may be made at any time, by a vote of its shareholders owning a majority of the stock of the bank who are entitled to vote, unless the articles of incorporation or bylaws require a greater number of affirmative votes of the capital stock. The vote shall be taken at a meeting called for that purpose. The bank shall submit the amendment to the division. The amendment is not effective unless approved by the division.

   (2)   Filing. The amendment, certified by an officer of the bank, shall be filed with the division, as required for the articles of incorporation.

   (3)   Increase of capital. An increase of the capital of the bank, by amending the bank’s articles of incorporation, is not valid until the amount of the increase has been subscribed and actually paid in. The entire surplus fund of a bank, or as much as may be required, may be declared and paid out as a stock dividend to apply on, and be converted into, an increase of capital.

   (4)   Reduction of capital. An amendment of the articles of incorporation may not reduce the capital of the bank to an amount less than that required under this chapter. A bank may not cancel stock certificates pursuant to an amendment to the bank’s articles of incorporation reducing the bank’s capital, until the amendment has been approved by the division. Any reduction in capital must be a proportional reduction of all outstanding shares, unless the division determines that a reduction in a different manner is in the best interests of the depositors.