GMAB ▲ +16.1% - Genmab A/S $GMAB Genmab Announces Statistically Significant, Clinically Meaningful Improvement in Overall Survival and Objective Response with Petosemtamab Combination at First Interim Analysis in First-Line R/M Patients with PD-L1+ Head and Neck Cancer 28-OCT-2026 09:40 AM ET