X0607 3 2026-05-05 0 0001073404 GERDAU S.A. GGB GGBR 0002134175 de Franca Gustavo Silva true AVENUE DOUTORA RUTH DE CARDOSO, 8501. 8TH FLOOR, PINHEIROS SAO PAULO SAO PAULO D5 05425-070 0 1 0 0 Officer Preferred shares 25729 D Restricted Stock Units 19.5 2027-02-12 2027-02-12 Preferred shares 3570 D Restricted Stock Units 19.06 2027-08-01 2027-08-01 Preferred shares 50221 D Restricted Stock Units 18.32 2028-02-12 2028-02-12 Preferred shares 4117 D Restricted Stock Units 20.83 2029-02-12 2029-02-12 Preferred shares 4038 D Restricted stock units vest on February 12, 2027. Exercise price denominated in Brazilian reais (R$). Restricted stock units vest on August 1, 2027. Exercise price denominated in Brazilian reais (R$). Restricted stock units vest on February 12, 2028. Exercise price denominated in Brazilian reais (R$). Restricted stock units vest on February 12, 2029. Exercise price denominated in Brazilian reais (R$). /s/ Gustavo Silva de Franca 2026-05-08