X0202 4 2006-06-14 0 0001103390 INTRABIOTICS PHARMACEUTICALS INC /DE IBPI 0001178579 TANG KEVIN C 4401 EASTGATE MALL SAN DIEGO CA 92121 1 0 1 0 0001232621 TANG CAPITAL MANAGEMENT LLC 4401 EASTGATE MALL SAN DIEGO CA 92121 0 0 1 0 0001191935 TANG CAPITAL PARTNERS LP 4401 EASTGATE MALL SAN DIEGO CA 92121 0 0 1 0 Common Stock 2006-06-14 4 P 0 10000 3.52 A 789305 I By LP Common Stock 2006-06-14 4 P 0 12100 3.52 A 801405 I By LP Common Stock 2006-06-15 4 P 0 1750 3.52 A 803155 I By LP Common Stock 2006-06-16 4 P 0 150 3.52 A 803305 I By LP Common Stock 90994 I As Trustee Common Stock 15089 D The shares are held by Tang Capital Partners, LP. The reporting person is the sole manager of Tang Capital Management, LLC, which is the general partner of Tang Capital Partners, LP. The reporting person disclaims beneficial ownership fo the securities except to the extent of his pecuniary interest therein. The securities are owned by Kevin C. Tang as custodian for his minor children, as Trustee of the Tang Family Trust and as Trustee of the Tang Advisors LLC Profit Sharing Plan, for which the reporting person serves as Trustee and in which the reporting person is a participant. The reporting person disclaims beneficial ownership of such securities except of this pecuniary interest therein. The securities are owned by the reporting person's IRA. /s/ Kevin C. Tang 2006-06-16 Kevin C. Tang Managing Member 2006-06-16 Kevin C. Tang as the Managing Member of Tang Capital Management, LLC, General Partner 2006-06-16