0001810182 2022-04-11 2022-04-11 0001810182 false 8-K 2022-04-11 ALX ONCOLOGY HOLDINGS INC. DE 001-39386 85-0642577 323 Allerton Avenue South San Francisco CA 94080 650 466-7125 false false false false Common Stock, $0.001 par value per share ALXO NASDAQ false