X0306 4 2016-06-13 0 0000850261 Sorrento Therapeutics, Inc. SRNE 0001189020 SOON-SHIONG PATRICK 9922 JEFFERSON BOULEVARD CULVER CITY CA 90232 0 0 1 0 0001668335 Chan Soon-Shiong Family Foundation 9922 JEFFERSON BOULEVARD CULVER CITY CA 90232 0 0 1 0 0001629222 Cambridge Equities, LP 9922 JEFFERSON BOULEVARD CULVER CITY CA 90232 0 0 0 1 Reporting group member 0001629186 MP 13 Ventures, LLC 9922 JEFFERSON BOULEVARD CULVER CITY CA 90232 0 0 0 1 Reporting group member Common Stock 2016-06-13 4 S 0 37792 6.145 D 736146 D Common Stock 2016-06-14 4 S 0 15972 6.114 D 720174 D Common Stock 7188061 I Through The Chan Soon-Shiong Family Foundation Warrant 5.80 2014-12-22 2017-12-22 Common Stock 1724138 1724138 I Through Cambridge Equities, LP These shares of common stock were sold on the open market. The price reported in Column 4 is a weighted average sale price. Dr. Patrick Soon-Shiong undertakes to provide to Sorrento Therapeutics, Inc. (the "Company"), any securityholder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the price at which these shares were sold. These shares of common stock were sold on the open market. The price reported in Column 4 is a weighted average sale price. Dr. Patrick Soon-Shiong undertakes to provide to the Company, any securityholder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the price at which these shares were sold. Dr. Patrick Soon-Shiong is the Chairman of The Chan Soon-Shiong Family Foundation. The exercise price of the Warrant is subject to customary adjustment provisions for stock splits, stock dividends, recapitalizations and the like. Dr. Patrick Soon-Shiong is the sole member of MP 13 Ventures, LLC, which is the general partner of Cambridge Equities, LP. This Form 4 shall not be deemed to be an admission by any reporting person hereunder that it or he is the beneficial owner, for purposes of Section 16 of the Securities and Exchange Act of 1934, as amended (the "Exchange Act"), for purposes of Section 13 of the Exchange Act, or for any other purpose, of any of the securities reported herein. Without limiting the immediately preceding sentence, each reporting person hereunder expressly disclaims beneficial ownership, for purposes of Section 16 of the Exchange Act, of all securities reported herein, except to the extent of its or his pecuniary interest therein. /s/ Patrick Soon-Shiong on behalf of himself and each other reporting person 2016-06-15