SINGER CHILDREN’S MANAGEMENT TRUST c/o 212 Vaccaro Drive Cresskill, NJ 07626Stock Ownership Agreement • September 5th, 2008 • Singer Karen • Services-business services, nec
Contract Type FiledSeptember 5th, 2008 Company IndustryReference is made to the Stock Ownership Agreement, dated as of May 30, 2008 (the “Stock Ownership Agreement”), among Arbinet-thexchange, Inc. (the “Company”), the Singer Children’s Management Trust (the “Trust”), Gary Singer (“GS”) and Karen Singer (“KS, and together with the Trust and GS, the “Singer Entities”). (Terms defined in the Stock Ownership Agreement shall, unless otherwise herein defined, have the meaning given to such terms in the Stock Ownership Agreement.) As you are aware, the Trust currently owns 4,030,273 shares of Common Stock, $.001 par value (“Common Stock”), of Arbinet-thexchange, Inc. (the “Company”). To the Trust’s knowledge, its current holdings of Common Stock represent 16.80% of the Company’s outstanding voting stock.