X0508 4 2026-01-30 0000051434 INTERNATIONAL PAPER CO /NEW/ IP 0001485532 Silvernail Andrew K C/O INTERNATIONAL PAPER COMPANY 6400 POPLAR AVENUE MEMPHIS TN 38197 1 Chief Executive Officer 0 Common Stock 2026-01-30 4 P 0 50000 39.9793 A 50000 D Shares are held by the Andrew K Silvernail 2014 Declaration of Trust, a revocable trust for which the reporting person serves as trustee and retains the power to revoke. Represents the weighted average price for 50,000 shares sold in multiple transactions at prices ranging from $39.80 and $40.26, inclusive. The reporting person undertakes to provide to International Paper Company, any security holder of International Paper Company, or the staff of the U.S. Securities and Exchange Commission, upon request, full information regarding the number of shares sold as reported in this Form 4. Power of Attorney on file. /s/ Vincent T. Smith, attorney-in-fact for Mr. Silvernail 2026-01-30