Lyell Immunopharma, Inc. operates as a holding company, which engages in the development of cell-based immunotherapies for human diseases. The company is headquartered in South San Francisco, California and currently employs 300 full-time employees. The company went IPO on 2021-06-17. The Company’s product candidates include LYL314 and LYL273. Its LYL314, which is in Phase I/II clinical development, is a dual-targeting CD19/CD20 CAR T-cell product candidate designed to increase complete response rates and prolong the duration of response as compared to the approved CD19-targeted CAR T-cell therapies and is under evaluation trial for the treatment of patients with relapsed and/or refractory large B-cell lymphoma. The firm has acquired the global rights to LYL273 (formerly GCC19CART), a novel autologous guanylyl cyclase-C (GCC)-targeted CAR T-cell product candidate for the treatment of metastatic colorectal cancer (mCRC) and other GCC-expressing cancers.