X0201 4 2004-02-02 0001103390 INTRABIOTICS PHARMACEUTICALS INC /DE IBPI 0001178579 TANG KEVIN C 4401 EASTGATE MALL SAN DIEGO CA 92121 1 0 1 0 0001191935 TANG CAPITAL PARTNERS LP 4401 EASTGATE MALL SAN DIEGO CA 92121 0 0 1 0 0001232621 TANG CAPITAL MANAGEMENT LLC 4401 EASTGATE MALL SAN DIEGO CA 92121 0 0 1 0 Common Stock 325715 I See Note Nonqualified Stock Option (right to buy) 16.49 2004-02-02 4 A 0 5000 0 A 2005-02-02 2014-02-02 Common Stock 5000 5000 D The reporting person may be deemed to be a member of a Section 13(d) group that owns more than 10% of the issuer's outstanding common stock. The shares (other than shares held by Mr. Tang as custodian for a minor child) may be deemed to be beneficially owned by Tang Capital Partners, LP, Tang Capital Management, LLC (the general partner of Tang Capital Partners, LP) and Kevin C. Tang, the sole manager of Tang Capital Management, LLC. Each of Tang Capital Management, LLC and Mr. Tang disclaims beneficial ownership of the shares except to the extent of its/his pecuniary interst therein. The reporting persons disclaim beneficial ownership of the securities held by Kevin C. Tang as custodian for his minor child, and this report shall not be deemed as an admission that the beneficial owners of such securities for purporses of Section 16 or for any other purpose. Includes 2,082 shares of common stock issued as a dividend on 12/31/03 and 583 shares held by Kevin C. Tang as custodian for his minor child. Option fully vests and becomes exercisable one year from date of grant on 2/2/2005. Dennis Calderon, Attorney-in-fact 2004-02-04