This study will assess the pharmacokinetics and relative Bioavailability of risankizumab following subcutaneous (SC) administration with on-body Injector in Healthy Adult Participants.

Inclusion Criteria:

• Body Mass Index (BMI) ≥ 18.0 to ≤ 32.0 kg/m^2 after rounding to the tenths decimal at the time of screening. BMI is calculated as weight in kg divided by the square of height measured in meters.
• Body weight greater than 40 kg and less than 100 kg at screening.
• A condition of general good health, based upon the results of a medical history, physical examination, vital signs, laboratory profile, and a 12-lead ECG

Exclusion Criteria:

• Previous exposure to any anti-interleukin-12/23 or anti interleukin-23 treatment for at least one year prior to Screening.
• Intention to perform strenuous exercise to which the participant is unaccustomed within one week prior to administration of first dose of study drug and during the study.