definiens: means, with respect to a Party or any of its Affiliates, Licensees or Sublicensees, ( a ) any sale, transfer, assignment, or other disposition, whether by operation of law o r otherwise, of the voting stock or other securities, which results in any single Th ird Party owning directly or indirectly a majority of voting stock or other securities ; ( b ) the sale of substantially all asset s in one or a series of transactions to a Third Party buyer ; ( c ) a merger o r consolidation with any Third Party, as a result of w hich the equity holders of a Party or any of its Affiliates, Licensees or Sublicensees immedi ately prior to such event hold less than a majority of the outstanding capital stock of the surviving entity or parent of the surviving entity ; or ( d ) the acquisit ion by a Third Party of the right to nominate a control ling majority of members of the board of directors