Mediaplex, Inc. Increases Price Range for Initial Public Offering

Business Wire, Nov 19, 1999

SAN FRANCISCO--(BUSINESS WIRE)--Nov. 19, 1999--

Mediaplex, Inc. today announced it has increased the price range set forth in its registration statement filed with the Securities and Exchange Commission for an initial public offering of 6,000,000 shares of its common stock.

The price range was increased to a $10.00 to $12.00 range from an $8.00 to $10.00 range. The final price of the common stock will not be determined by the Company and the managing underwriters until the registration statement has been declared effective by the Securities and Exchange Commission.

All of the shares will be offered for the account of the company. The offering will be managed by Lehman Brothers Inc., SG Cowen Securities Corporation, U.S. Bancorp Piper Jaffray Inc. and Fidelity Capital Markets, division of National Financial Services Corporation. When available, a copy of the prospectus may be obtained from: -0-

       --     Lehman Brothers Inc. at
              3 World Financial Center
              New York, NY 10285
              Telephone: 212/526-7000

       --     SG Cowen Securities Corporation at
              One Financial Square
              New York, NY 10005
              Telephone: 212/495-6000

       --     U.S. Bancorp Piper Jaffray Inc. at
              222 South Ninth Street
              Minneapolis, MN 55402
              Telephone: 612/342-6000

       --     Fidelity Capital Markets,
              a division of National Financial Services Corporation
              World Trade Center, Z2H
              164 Northern Avenue
              New York, NY 02210
              Telephone:  800/544-5631
-0-

A registration statement relating to these securities has been filed with the Securities and Exchange Commission, but has not yet become effective. These securities may not be sold, nor may offers to buy be accepted prior to the time the registration becomes effective. This press release shall not constitute an offer to sell or the solicitation of an offer to buy, nor shall there be any sale of these securities in any state in which such offer, solicitation or sale would be unlawful prior to the registration or qualification under the securities laws of any such state.

Mediaplex, Inc. provides eBusiness marketing and technology solutions that enable companies to optimize Internet advertising for sales, direct marketing and brand building. The Company's campaign management services include online media planning and buying, ad serving, tracking and reporting, and return on investment analysis for advertising spending.