X0306 4 2017-02-03 0 0000850261 Sorrento Therapeutics, Inc. SRNE 0001638744 Ng George K C/O SORRENTO THERAPEUTICS, INC. 9380 JUDICIAL DRIVE SAN DIEGO CA 92121 0 1 0 0 See Remarks Common Stock 2017-02-03 4 S 0 40000 5.15 D 49338 D Common Stock 3448 I Through Peng Ventures, LLC Common Stock 11453 I By Ng Cha Family Trust The Reporting Person's sale of 40,000 shares of common stock of the Issuer reported herein was matchable under Section 16(b) of the Securities Exchange Act of 1934, as amended, to the extent of 40,000 shares, with the Reporting Person's receipt of 89,338 shares of common stock of the Issuer in exchange for 1,800,000 shares of common stock of Scilex Pharmaceuticals Inc. ("Scilex") on November 8, 2016 pursuant to a stock purchase agreement by and among the Issuer, Scilex, the stockholders of Scilex party thereto (the "Scilex Stockholders") and SPI Shareholders Representative, LLC, as representative of the Scilex Stockholders (the "Stock Purchase Agreement"). The Stock Purchase Agreement placed a value on the Issuer's common stock of $6.33 per share. (Continued from Footnote 1) These transactions did not result in short-swing profits, as the price per share of the shares received by the Reporting Person pursuant to the Stock Purchase Agreement exceeded the price per share of the shares sold. In the event these transactions were determined to have resulted in short-swing profits, the Reporting Person has agreed to pay to the Issuer the full amount of any profit realized in connection with the transaction, less transaction costs. The total number of shares reported as directly beneficially owned by the Reporting Person has been reduced by 888 shares due to prior over-reporting of such shares as being directly beneficially owned by the Reporting Person. The total number of shares reported as indirectly beneficially owned by the Reporting Person through Peng Ventures, LLC has been reduced by 11,453 shares as such shares should have been reported as indirectly beneficially owned by the Reporting Person's family trust. Shares are held in a family trust of which the Reporting Person is a co-trustee with his wife. Executive Vice President & Chief Legal Officer Exhibit 24 - Power of Attorney /s/ George Ng 2017-02-03