Exhibit 4.3 DIADEXUS, INC. INVESTOR'S RIGHTS AGREEMENT JULY 11, 2001 TABLE OF CONTENTSInvestor's Rights Agreement • December 21st, 2001 • Diadexus Inc • Services-commercial physical & biological research • California
Contract Type FiledDecember 21st, 2001 Company Industry Jurisdiction
ICNT, INC.Investors Rights Agreement • April 27th, 2000 • Internetconnect Inc • California
Contract Type FiledApril 27th, 2000 Company Jurisdiction
RECITALS --------Investors' Rights Agreement • January 12th, 2000 • Blaze Software Inc • California
Contract Type FiledJanuary 12th, 2000 Company Jurisdiction