Cooley advised underwriters on IGM Biosciences’ $201.3 million initial public offering of 12,578,125 shares of common stock, including full exercise of the underwriters’ option to purchase additional shares. Jefferies, Piper Jaffray, Stifel, Nicolaus & Company and Guggenheim Securities acted as joint book-running managers for the offering. IGM Biosciences’ securities now trade on the Nasdaq Global Select Market under the symbol “IGMS.” Partners Jonie Kondracki, Charlie Kim, Dave Peinsipp and Will Cai led the Cooley team.