X0508 4 2024-05-03 0001732845 WestRock Co WRK 0001653265 Kivits Patrick M. 1000 ABERNATHY ROAD NE SUITE 125 ATLANTA GA 30328 0 1 0 0 President, Corrugated Pkg 0 Common Stock 2024-05-03 4 S 0 6000 51.44 D 51502 D The price reported in Column 4 is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $51.33 to $51.51, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. Includes dividend reinvestments and dividend equivalent units not previously reported that are exempt from Section 16. Steph W. Bignon (attorney-in-fact pursuant to power of attorney previously filed with the SEC) 2024-05-06