The Cancer Immunology Working Group (CIMM) hosted a variety of sessions and events at the AACR Annual Meeting on April 2, 2017. This Cancer Immunology Working Group Town Meeting co-sponsored by CIMM and the Society for Immunotherapy of Cancer (SITC) focused on SITC initiatives and immunotherapy. Special guest speakers included Lisa H. Butterfield, PhD and Marcus W. Bosenberg, MD. Chairpersons: