We identified 137 patients with KRAS-mutant NSCLC treated with chemo-immunotherapy: 45% (62/137) had mutations in KRAS-G12C and 55% harbored non-G12C mutations (17% G12V, 15% G12D, 4% G12A, 4% G12S, 3% G13D). The median OS was 21 and 14 months for G12C and non-G12C patients, respectively (p = 0.24).