35-1-426. Vacancy on board. (1) Unless the articles of incorporation provide otherwise, if a vacancy occurs on a board of directors, including a vacancy resulting from an increase in the number of directors:

(a) the shareholders may fill the vacancy;

(b) the board of directors may fill the vacancy; or

(c) if the members of the board of directors remaining in office constitute fewer than a quorum of the board, they may fill the vacancy by the affirmative vote of a majority of all the directors remaining in office.

(2) If the vacant office was held by a director elected by a voting group of shareholders, only the holders of shares of that voting group are entitled to vote to fill the vacancy if it is filled by the shareholders.

(3) A vacancy that will occur at a specific later date, by reason of a resignation effective at a later date under 35-1-423 or otherwise, may be filled before the vacancy occurs. However, the new director may not take office until the vacancy occurs.