A Study of LY4086940 in Healthy Participants and Participants With Overweight or Obesity, With or Without Type 2 Diabetes

Who May Qualify: - Have no significant body weight change for the 3 months prior to screening Part A and Part E: - Are considered healthy - Have a body mass index (BMI) of 22 to 35 kilograms per square meter (kg/m2) at screening Part B: - Have a BMI of 27 to 45 kg/m2 at screening Part C: - Have a BMI of 25 to 45 kg/m2 at screening Part D: - Have type 2 diabetes - Have hemoglobin A1C (HbA1c) ≥6.5% and ≤10.5% at screening - Have a BMI of 27 to 45 kg/m2 at screening Who Should NOT Join This Trial: - Have had an acute cardiovascular condition within the past 6 months prior to screening - Have liver disease or pancreatitis - Have used medications for weight loss within the 3 months prior to screening Parts A, B, C, E: - Have any form of diabetes Part D: - Have type 1 diabetes Always talk to your doctor about whether this trial is right for you.