1 EXHIBIT 10.4 CONFIDENTIAL TREATMENT REQUESTED -- EDITED COPY REGISTRATION RIGHTS AGREEMENT REGISTRATION RIGHTS AGREEMENT, dated as of October 26, 2000, by and between SciClone Pharmaceuticals, Inc., a California corporation (the "Company"), and UBS...Registration Rights Agreement • August 3rd, 2001 • Sciclone Pharmaceuticals Inc • Pharmaceutical preparations • New York
1 EXHIBIT 4.6 CONFIDENTIAL TREATMENT REQUESTED -- EDITED COPY AMENDMENT NO. 1 TO 6% CONVERTIBLE NOTE DUE 2005 AND AMENDMENT NO. 2 TO OPTION AGREEMENTConvertible Note and Option Agreement Amendment • August 3rd, 2001 • Sciclone Pharmaceuticals Inc • Pharmaceutical preparations
