A new underwritten public offering of about 3.25 million shares of common stock by Mirati Therapeutics Inc. will support the company’s Phase I/II push for cancer candidates MGCD265 and MGCD516, as well as an open-label, dose-confirmation trial of its late-stage candidate mocetinostat. Mirati will price the stock at $17.50 per share, and expects gross proceeds of about $56.9 million.