"Combination," when used in reference to any resident domestic corporation and any interested stockholder of the resident domestic corporation, means any of the following:
under any agreement, arrangement or understanding, whether or not in writing, with the interested stockholder or any affiliate or associate of the interested stockholder, which has the immediate and proximate effect of increasing the proportionate share of the outstanding shares of any class or series of voting shares or securities convertible into voting shares of the resident domestic corporation or any subsidiary of the resident domestic corporation which is beneficially owned by the interested stockholder or any affiliate or associate of the interested stockholder, except as a result of immaterial changes because of adjustments of fractional shares.
NRS 78.416