Gritstone Oncology Completes $92.7 Million Series B


EMERYVILLE – Gritstone Oncology, a personalized cancer immunotherapy company,has completed a $92.7 million Series B preferred stock financing. Proceeds from the financing will be used to advance Gritstone’s tumor antigen identification platform and pipeline of personalized cancer immunotherapies. The company’s lead program, targeting tumor-specific neoantigens, is expected to enter clinical trials in mid-2018, initially in patients with non-small cell lung cancer and gastric cancer.

The round was led by new investor Lilly Asia Ventures, with participation from GV (formerly Google Ventures), Trinitas Capital (Beijing) and Alexandria Venture Investments, all new investors. All existing investors are also all participating in the round, including Versant Ventures, The Column Group, Clarus Funds and Frazier Healthcare Partners.

The new investment will also support the ongoing construction and completion of Gritstone’s 43,000 square foot industrialized manufacturing facility in Pleasanton, CA. This state-of-the-art facility is being built in compliance with current Good Manufacturing Practices (cGMP) standards and will form the nucleus of Gritstone’s manufacturing program for personalized cancer therapeutics. The first investigational products for clinical research are expected to be manufactured in this facility in 2018.

“We are excited to expand our investor base with leading investors from the U.S. and Asia, and to continue driving Gritstone’s best-in-class approach to develop personalized immunotherapies,” said Andrew Allen, M.D., Ph.D., co-founder, president and chief executive officer of Gritstone Oncology. “Since the formation of the company two years ago, Gritstone has made significant progress leveraging extensive human tumor molecular analysis and machine learning to develop and optimize the proprietary Gritstone EDGE tumor antigen identification platform. We have matched our breakthrough accuracy in tumor neoantigen identification with an antigen delivery system that builds on human immunity insights from infectious disease experts, culminating in an extremely potent neoantigen delivery platform expected to drive best-in-class cytotoxic T cell responses.”

Gritstone launched in October 2015.

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