X0407 4 2023-05-17 0000861884 RELIANCE STEEL & ALUMINUM CO RS 0001311702 Stotlar Douglas C/O RELIANCE STEEL & ALUMINUM CO. 16100 N. 71ST STREET, SUITE 400 SCOTTSDALE AZ 85254 1 0 0 0 0 Common Stock 2023-05-17 4 A 0 615 0 A 8241 I Through Kivi Talo Holdings LLC The Reporting Person is the sole member of the limited liability company that owns the reported securities. The Reporting Person disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein. /s/ Douglas W. Stotlar by William A. Smith II as his Attorney-in-Fact 2023-05-18