Wisconsin Agent for Issuer U4 Supplemental Information (U-4S) is a registration form that must be completed by individuals who wish to register to conduct securities activities in the state of Wisconsin. The form is used to collect information regarding the individual’s background, skills, and experience in the securities' industry. There are two types of Wisconsin Agent for Issuer U4 Supplemental Information (U-4S): 1) Initial Registration and 2) Renewal Registration. The Initial Registration form is used for initial applications for registration, while the Renewal Registration form is used for renewing a registration. Both forms require the individual to provide detailed information regarding their background, skills, and experience. This information is then reviewed by the Wisconsin Division of Securities to determine if the individual is qualified to conduct securities activities in the state.