MRK ▼ -2.4% - Merck & Co., Inc. $MRK Sacituzumab Tirumotecan (Sac-TMT) Reduced the Risk of Death by 32% and the Risk of Disease Progression or Death by 41% Compared to Chemotherapy in Certain Patients With Advanced or Recurrent Endometrial Cancer 26-OCT-2026 11:30 AM ET