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Westlake Village biotechnology company Sienna Biopharmaceuticals closed with a big gain after it raised $65 million in its initial public offering July 27. Sienna priced the 4.33 million shares it offered at $15. Shares had reached $21 around noon before ending at $19.25, a 28.3 percent premium on its opening price. The company operates in Read More →
Westlake Village biotechnology company Sienna Biopharmaceuticals filed for an initial public offering with the Securities and Exchange Commission on June 3, stating expectations to raise up to $74.75 million. Founded in 2010, the company develops clinical-stage topical therapies for inflammatory skin diseases and other conditions. ARCH Venture Partners and Venvest Capital led a $40 million Read More →