Sienna Biopharmaceuticals Names CFO

Westlake Village-based Sienna Biopharmaceuticals said Friday that it has named Richard Peterson as the company's new Chief Financial Officer. Peterson was most recent at Novan, where he also served as Chief Financial Officer, and also has served as CFO and Treasurer at Medicis Pharmaceutical Corporation, in addition to serving as an auditor at PricewaterhouseCoopers. Sienna says that Peterson will take over from John Smither, who is retiring, but will remain as an advisor.