Gritstone amends IPO

Immuno-oncology company Gritstone Oncology Inc. (Emeryville, Calif.) amended on Sept. 17 its proposed IPO on NASDAQ and now plans to sell 6.1 million shares at $13-$15. At the midpoint, the company would raise $85 million and be valued at $395.3 million. The offering is underwritten by Goldman Sachs, Cowen, Barclays and BTIG...