Sienna Biopharmaceuticals Sees IPO Bump In First Day Of Trading

Westlake Village-based Sienna Biopharmaceuticals saw a healthy bump on its firs tday of trading as a public company, closing at $19.25 per share, or up 28.33 percent. Sienna, which debuted on Thursday as SNNA on the NASDAQ Global Market, had priced at $15.00 per share on Wednesday evening. Sienna Biopharmaceuticals is venture backed by ARCH Venture Partners, Partner Fund, and Fidelity. The company is developing aesthetic medicine products.