Press Release

NantKwest – $238 Million IPO

August 14, 2015

San Diego – August 14, 2015 – Cooley advised the underwriters on NantKwest, Inc.'s $238.3 million initial public offering. NantKwest is a clinical-stage immunotherapy company focused on harnessing the power of the innate immune system by using the natural killer cell to treat cancer, infectious diseases and inflammatory diseases. The company now trades on The NASDAQ Global Select Market under the symbol "NK."

BofA Merrill Lynch, Citigroup Global Markets Inc., Jefferies LLC and Piper Jaffray acted as joint book-running managers for the offering, and MLV & Co. LLC acted as co-manager.

The Cooley corporate securities team advising the underwriters was comprised of partners Charlie Kim and Sean Clayton and associates Kristin VanderPas, Carlos Ramirez, Susan Walker, Adrienne Directo and Sunny Chang.

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