Filed by Valicert, Inc.
Pursuant to Rule 425 under the Securities Act of 1933
and deemed filed pursuant to Rule 14a-12
of the Securities Exchange Act of 1934
Subject Corporation: Valicert, Inc.
Commission File No.: 000-31109
ADDITIONAL INFORMATION AND WHERE TO FIND IT
Tumbleweed intends to file a registration statement on Form S-4 in connection with the transaction, and Tumbleweed and Valicert intend to mail a joint proxy statement/prospectus to their respective stockholders in connection with the transaction. Investors and security holders of Tumbleweed and Valicert are urged to read the joint proxy statement/prospectus when it becomes available because it will contain important information about Tumbleweed, Valicert and the transaction. Investors and security holders may obtain a free copy of the joint proxy statement/prospectus (when it is available) at the SEC’s web site at www.sec.gov. A free copy of the joint proxy statement/prospectus may also be obtained from Tumbleweed or Valicert. Tumbleweed and its executive officers and directors may be deemed to be participants in the solicitation of proxies from the stockholders of Tumbleweed and Valicert in favor of the transaction. Information regarding the interests of Tumbleweed’s officers and directors in the transaction will be included in the joint proxy statement/prospectus. Valicert and its executive officers and directors also may be deemed to be participants in the solicitation of proxies from the stockholders of Tumbleweed and Valicert in favor of the transaction. Information regarding the interests of Valicert’s officers and directors in the transaction will be included in the joint proxy statement/prospectus. In addition to the registration statement on Form S-4 to be filed by Tumbleweed in connection with the transaction, and the joint proxy statement/prospectus to be mailed to the stockholders of Tumbleweed and Valicert in connection with the transaction, each of Tumbleweed and Valicert file annual, quarterly and special reports, proxy and information statements, and other information with the SEC. Investors may read and copy any of these reports, statements and other information at the SEC’s public reference rooms located at 450 5th Street, N.W., Washington, D.C., 20549, or any of the SEC’s other public reference rooms located in New York and Chicago. Investors should call the SEC at 1-800-SEC-0330 for further information on these public reference rooms. The reports, statements and other information filed by Tumbleweed and Valicert with the SEC are also available for free at the SEC’s web site at www.sec.gov. A free copy of these reports, statements and other information may also be obtained from Tumbleweed at their website www.tumbleweed.com or Valicert at their website at www.valicert.com.