EXHIBIT 32
CERTIFICATION OF THE CHIEF EXECUTIVE OFFICER AND CHIEF FINANCIAL OFFICER
PURSUANT TO
18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002
I certify pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that the Quarterly Report of Ciphergen Biosystems, Inc. on Form 10-Q/A for the quarterly period ended March 31, 2004 fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 and that information contained in such Form 10-Q/A fairly presents in all material respects the financial condition and results of operations of Ciphergen Biosystems, Inc.
Date: May 20, 2004 |
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| /s/ William E. Rich, Ph.D. |
| President and Chief Executive Officer |
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| /s/ Matthew J. Hogan |
| Senior Vice President and Chief Financial Officer |
