X0609 4 2026-08-18 0001850270 PROKIDNEY CORP. PROK 0001298146 Pereira Brian JG false C/O PROKIDNEY CORP 2000 FRONTIS PLAZA BLVD, SUITE 250 WINSTON SALEM NC 27103 true false false false false Class A Common Stock 2026-08-18 4 S false 229338 1.3712 D 445897 I By Brian J. G. Pereira 2012 Irrevocable Trust Class A Common Stock 2026-08-18 4 S false 27826 1.3712 D 54103 D Class A Common Stock 2026-08-19 4 S false 222949 1.4407 D 222948 I By Brian J. G. Pereira 2012 Irrevocable Trust Class A Common Stock 2026-08-19 4 S false 27051 1.4407 D 27052 D Class A Common Stock 2026-08-20 4 S false 222948 1.4199 D 0 I By Brian J. G. Pereira 2012 Irrevocable Trust Class A Common Stock 2026-08-20 4 S false 27052 1.4199 D 0 D The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $1.345 to $1.40, inclusive. The reporting person undertakes to provide to ProKidney Corp., any security holder of ProKidney Corp., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $1.38 to $1.50, inclusive. The reporting person undertakes to provide to ProKidney Corp., any security holder of ProKidney Corp., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $1.38 to $1.47, inclusive. The reporting person undertakes to provide to ProKidney Corp., any security holder of ProKidney Corp., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. /s/ Todd Girolamo, attorney in fact 2026-08-20