 HOUSTON, March 15, 2021 PRNewswire -- Marker Therapeutics, Inc. NASDAQ:MRKR, a clinical-stage immuno-oncology company specializing in the development of next-generation T cell-based immunotherapies for the treatment of hematological malignancies and solid tumor indications, today announced that its President and Chief Executive Officer, Peter L. Hoang, will present at the upcoming Virtual Oppenheimer 31st Annual Healthcare Conference on Wednesday, March 17, 2021 at 3:10 p.m. 