ALX Oncology Holdings, Inc. operates as a clinical stage company, which engages in the research and development of therapies for cancer patients. Its objective is to provide clinical therapies for the treatment of myelodysplastic syndromes, acute myeloid leukemia, and a range of solid tumor indications. The company was founded by Corey Goodman, Jaume Pons, and K. Christopher Garcia in March 2015 and is headquartered in South San Francisco, CA.