Table of Contents Table of Contents 3 List of Tables 4 List of Figures 4 Sienna Biopharmaceuticals Inc, Medical Equipment, Deals By Year, 2012 to YTD 2018 5 Sienna Biopharmaceuticals Inc, Medical Equipment Deals By Type, 2012 to YTD 2018 6 Sienna Biopharmaceuticals Inc, Medical Equipment, Deals By Region, 2012 to YTD 2018 7 Sienna Biopharmaceuticals Inc, Medical Equipment, Deals By Market, 2012 to YTD 2018 8 Sienna Biopharmaceuticals Inc, Medical Equipment, Deals Summary, 2012 to YTD 2018 9 Sienna Biopharmaceuticals Inc, Medical Equipment, Deal Details 10 Venture Financing 10 Sienna Biopharma Raises USD40 million in Series B Financing 10 Equity Offering 12 Sienna Biopharma Plans to Raise up to USD75 Million in Public Offering of Shares 12 Sienna Biopharma Raises USD74.7 Million in IPO 13 Sienna Biopharma Raises USD0.6 Million in Private Placement of Shares 15 Sienna Biopharmaceuticals Inc - Key Competitors 16 Sienna Biopharmaceuticals Inc - Key Employees 17 Sienna Biopharmaceuticals Inc - Locations And Subsidiaries 18 Head Office 18 Other Locations & Subsidiaries 18 Recent Developments 19 Financial Announcements 19 Aug 09, 2018: Sienna Biopharmaceuticals reports second quarter 2018 financial results 19 May 14, 2018: Sienna Biopharmaceuticals Reports First Quarter 2018 Financial Results 21 Mar 15, 2018: Sienna Biopharmaceuticals Reports Fourth Quarter and Full Year 2017 Financial Results 22 Nov 09, 2017: Sienna Biopharmaceuticals Reports Third Quarter 2017 Financial Results 24 Corporate Communications 25 Aug 02, 2018: Sienna Biopharmaceuticals Appoints Finance Veteran, James M. Hindman, to Board of Directors 25 Jul 02, 2018: Sienna Biopharmaceuticals Enters $40 Million Term Loan Agreement 26 Mar 22, 2018: Sienna Biopharmaceuticals Appoints Caroline Van Hove as Chief Commercial Officer 27 Mar 21, 2018: Sienna Biopharmaceuticals Appoints John W. Smither as Chief Financial Officer 28 Dec 12, 2017: Sienna Biopharmaceuticals Establishes Corporate Advisory Board 29 Jun 14, 2017: Sienna Biopharmaceuticals Appoints Erle Mast, Former CFO and Co-Founder of Clovis Oncology, to Board of Directors 30 Mar 24, 2017: Richard Peterson Joins Sienna Biopharmaceuticals As Chief Financial Officer 31 Feb 28, 2017: Former Allergan Chief David Pyott Signs on as Special Advisor to Sienna Biopharmaceuticals 32 Legal and Regulatory 33 May 07, 2018: Sebacia Announces Favorable Ruling by U.S. Court of Appeals for the Federal Circuit Regarding Patent Interference Proceedings with Sienna Biopharmaceuticals 33 Appendix 34 Methodology 34 About 34 Contact Us 34 Disclaimer 34

List of Tables Sienna Biopharmaceuticals Inc, Medical Equipment, Key Facts, 2017 2 Sienna Biopharmaceuticals Inc, Medical Equipment, Deals Summary, 2012 to YTD 2018 2 Sienna Biopharmaceuticals Inc, Medical Equipment, Deals By Year, 2012 to YTD 2018 5 Sienna Biopharmaceuticals Inc, Medical Equipment Deals By Type, 2012 to YTD 2018 6 Sienna Biopharmaceuticals Inc, Medical Equipment, Deals By Region, 2012 to YTD 2018 7 Sienna Biopharmaceuticals Inc, Deals By Market, 2012 to YTD 2018 8 Sienna Biopharmaceuticals Inc, Medical Equipment, Deals Summary, 2012 to YTD 2018 9 Sienna Biopharma Raises USD40 million in Series B Financing 10 Sienna Biopharma Plans to Raise up to USD75 Million in Public Offering of Shares 12 Sienna Biopharma Raises USD74.7 Million in IPO 13 Sienna Biopharma Raises USD0.6 Million in Private Placement of Shares 15 Sienna Biopharmaceuticals Inc, Key Competitors 16 Sienna Biopharmaceuticals Inc, Key Employees 17 Sienna Biopharmaceuticals Inc, Subsidiaries 18List of Figures Sienna Biopharmaceuticals Inc, Medical Equipment, Deals by Type, 2012 to YTD 2018 2 Sienna Biopharmaceuticals Inc, Medical Equipment, Deals By Year, 2012 to YTD 2018 2 Sienna Biopharmaceuticals Inc, Medical Equipment, Deals By Region, 2012 to YTD 2018 2 Sienna Biopharmaceuticals Inc, Medical Equipment, Deals By Market, 2012 to YTD 2018 2 Sienna Biopharmaceuticals Inc, Medical Equipment, Deals By Year, 2012 to YTD 2018 5 Sienna Biopharmaceuticals Inc, Medical Equipment, Deals by Type, 2012 to YTD 2018 6 Sienna Biopharmaceuticals Inc, Medical Equipment, Deals By Region, 2012 to YTD 2018 7 Sienna Biopharmaceuticals Inc, Medical Equipment, Deals by Market, 2012 to YTD 2018 8