IP

The Restricted Stock Units (units) reported were awarded to the reporting person for service as a director for the 2026-2027 service year. The units held in the Restricted Stock and Deferred Compensation Plan for Non-Employee Directors represent one share of International Paper Company common stock. The units are settled in cash on January 1 following the year in which the reporting person terminates service as a director.

Share numbers rounded.

The total amount reported includes previously credited dividend equivalents. Dividend equivalents are acquired pursuant to a dividend reinvestment feature of the Company's Long-Term Incentive Plan. Dividends vest at the same time as the award to which they relate.

The Restricted Stock Units (units) reported were awarded to the reporting person for service as a director for the 2026-2027 service year. The units held in the Restricted Stock and Deferred Compensation Plan for Non-Employee Directors represent one share of International Paper Company common stock. The units are settled in cash on January 1 following the year in which the reporting person terminates service as a director.

Share numbers rounded.

The total amount reported includes previously credited dividend equivalents. Dividend equivalents are acquired pursuant to a dividend reinvestment feature of the Company's Long-Term Incentive Plan. Dividends vest at the same time as the award to which they relate.

Share numbers rounded.

The shares reported were awarded to the participant for service as a director for the 2026-2027 service year. Shares become free of restrictions and non-forfeitable on the earliest of: (i) May 12, 2027, (ii) death, (iii) disability, (iv) retirement or (v) resignation with the consent of the Board of Directors. In the event of a resignation, the award would be reduced pro rata based on length of service.

The total amount reported includes previously credited dividend equivalents. Dividend equivalents are acquired pursuant to a dividend reinvestment feature of the Company's Long-Term Incentive Plan. Dividends vest at the same time as the award to which they relate.

The Restricted Stock Units (units) reported were awarded to the reporting person for service as a director for the 2026-2027 service year. The units held in the Restricted Stock and Deferred Compensation Plan for Non-Employee Directors represent one share of International Paper Company common stock. The units are settled in cash on January 1 following the year in which the reporting person terminates service as a director.

Share numbers rounded.

The total amount reported includes previously credited dividend equivalents. Dividend equivalents are acquired pursuant to a dividend reinvestment feature of the Company's Long-Term Incentive Plan. Dividends vest at the same time as the award to which they relate.

Share numbers rounded.

Represents shares withheld for the payment of tax liability from the vesting of the award to the reporting person for service as a director for the 2025-2026 service year.

The Restricted Stock Units (units) reported were awarded to the reporting person for service as a director for the 2026-2027 service year. The units held in the Restricted Stock and Deferred Compensation Plan for Non-Employee Directors represent one share of International Paper Company common stock. The units are settled in cash on January 1 following the year in which the reporting person terminates service as a director.

Share numbers rounded.

The total amount reported includes previously credited dividend equivalents. Dividend equivalents are acquired pursuant to a dividend reinvestment feature of the Company's Long-Term Incentive Plan. Dividends vest at the same time as the award to which they relate.

Share numbers rounded.

The shares reported were awarded to the participant for service as a director for the 2026-2027 service year. Shares become free of restrictions and non-forfeitable on the earliest of: (i) May 12, 2027, (ii) death, (iii) disability, (iv) retirement or (v) resignation with the consent of the Board of Directors. In the event of a resignation, the award would be reduced pro rata based on length of service.

The total amount reported includes previously credited dividend equivalents. Dividend equivalents are acquired pursuant to a dividend investment feature of the Company's Long-Term Incentive Plan. Dividends vest at the same time as the award to which they relate.

Share numbers rounded.

The shares reported were awarded to the participant for service as a director for the 2026-2027 performance year. Shares become free of restrictions and non-forfeitable on the earliest of: (i) May 12, 2027, (ii) death, (iii) disability, (iv) retirement or (v) resignation with the consent of the Board of Directors. In the event of a resignation, the award would be reduced pro rata based on length of service.

The total amount reported includes previously credited dividend equivalents. Dividend equivalents are acquired pursuant to a dividend reinvestment feature of the Company's Long-Term Incentive Plan. Dividends vest at the same time as the award to which they relate.

Share numbers rounded.

The shares reported were awarded to the participant for service as a director for the 2026-2027 service year. Shares become free of restrictions and non-forfeitable on the earliest of: (i) May 12, 2027, (ii) death, (iii) disability, (iv) retirement or (v) resignation with the consent of the Board of Directors. In the event of a resignation, the award would be reduced pro rata based on length of service.

Share numbers rounded.

Represents shares withheld for the payment of tax liability from the vesting of the award to the reporting person for service as a director for the 2025-2026 service year.

The Restricted Stock Units (units) reported were awarded to the reporting person for service as a director for the 2026-2027 service year. The units held in the Restricted Stock and Deferred Compensation Plan for Non-Employee Directors represent one share of International Paper Company common stock. The units are settled in cash on January 1 following the year in which the reporting person terminates service as a director.

Share numbers rounded.

The total amount reported includes previously credited dividend equivalents. Dividend equivalents are acquired pursuant to a dividend reinvestment feature of the Company's Long-Term Incentive Plan. Dividends vest at the same time as the award to which they relate

Share numbers rounded.

The shares reported were awarded to the participant for service as a director for the 2026-2027 service year. Shares become free of restrictions and non-forfeitable on the earliest of: (i) May 12, 2027, (ii) death, (iii) disability, (iv) retirement or (v) resignation with the consent of the Board of Directors. In the event of a resignation, the award would be reduced pro rata based on length of service.

Represents the weighted average price for 10,000 shares purchased on May 1, 2026 at prices ranging from $31.165 and $31.35, 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.

Shares withheld to cover tax obligations related to the vesting of the 2024 Recognition Restricted Stock Unit Award granted on June 14, 2024.

Share numbers rounded.

Shares withheld to cover tax obligations related to the vesting of the first tranche of the 2025 Inducement Restricted Stock Unit Award granted on April 1, 2025.

Share numbers rounded.

Shares withheld to cover tax obligations related to the vesting of the first tranche of the 2025 Retention Recognition Restricted Stock Unit Award granted on April 1, 2025.

Share numbers rounded.

Shares are held in a joint brokerage account with the reporting person's spouse.

Represents the weighted average price for 13,217 shares purchased in multiple transactions at prices ranging from $37.5450 and $38.2500, 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.

Shares are held in a joint brokerage account with the reporting person's spouse.

Represents the weighted average price for 12,875 shares purchased in multiple transactions at prices ranging from $38.6300 and $38.9900, 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.

Performance Share Units ("PSUs") earned (including accrued dividend equivalents) are based on the achievement of pre-established performance goals pursuant to a January 1, 2023 grant of PSUs made under the 2023-2025 Long-Term Incentive Plan.

Share numbers rounded.

Shares withheld to cover tax obligations.

Share numbers rounded.

Performance Share Units ("PSUs") earned (including accrued dividend equivalents) are based on the achievement of pre-established performance goals pursuant to a January 1, 2023 grant of PSUs made under the 2023-2025 Long-Term Incentive Plan.

Share numbers rounded.

Shares withheld to cover tax obligations.

Share numbers rounded.

Performance Share Units ("PSUs") earned (including accrued dividend equivalents) are based on the achievement of pre-established performance goals pursuant to a January 1, 2023 grant of PSUs made under the 2023-2025Long-Term Incentive Plan.

Share numbers rounded.

Shares withheld to cover tax obligations.

Share numbers rounded.

Shares withheld to cover tax obligations.

Share numbers rounded.

Performance Share Units ("PSUs") earned (including accrued dividend equivalents) are based on the achievement of pre-established performance goals pursuant to a January 1, 2023 grant of PSUs made under the 2023-2025 Long-Term Incentive Plan.

Share numbers rounded.

Shares withheld to cover tax obligations related to the vesting of the third tranche of the 2023 Restricted Stock Unit Award granted on January 1, 2023.

Share numbers rounded.

Additional shares were withheld to cover tax obligations arising from the vesting of the 2024 Restricted Stock Unit Award that vested on February 1, 2026. Because the reporting person is on an expatriate assignment, federal taxes were not initially withheld in error. Once the correct tax rates were applied, additional shares were withheld for the required tax obligations.

Share numbers rounded.

Shares withheld to cover tax obligations related to the vesting of the second tranche of the 2024 Restricted Stock Unit Award granted on January 1, 2024.

Share numbers rounded.

Shares withheld to cover tax obligations related to the vesting of the third tranche of the 2023 Restricted Stock Unit Award granted on January 1, 2023.

Share numbers rounded.

The total amount reported includes?previously credited dividends and dividend equivalents acquired in 2025. Dividends and dividend equivalents are acquired pursuant to a dividend reinvestment feature of the Company's Long-Term Incentive Plan. Dividend equivalents vest at the same time as the award to which they relate.

Shares withheld to cover tax obligations related to the vesting of the third tranche of the 2023 Restricted Stock Unit Award granted on January 1, 2023.

The total amount reported includes?previously credited dividends and dividend equivalents acquired in 2025. Dividends and dividend equivalents are acquired pursuant to a dividend reinvestment feature of the Company's Long-Term Incentive Plan. Dividend equivalents vest at the same time as the award to which they relate.

Share numbers rounded.

Additional shares were withheld to cover tax obligations arising from the vesting of the 2023 Restricted Stock Unit Award that vested on February 1, 2026. Because the reporting person is on an expatriate assignment, federal taxes were not initially withheld in error. Once the correct tax rates were applied, additional shares were withheld for the required tax obligations.

Share numbers rounded.

Shares withheld to cover tax obligations related to the vesting of the second tranche of the 2024 Restricted Stock Unit Award granted on January 1, 2024.

Share numbers rounded.

Shares withheld to cover tax obligations related to the vesting of the second tranche of the 2024 Restricted Stock Unit Award granted on January 1, 2024.

Share numbers rounded.

Shares withheld to cover tax obligations related to the vesting of the first tranche of the 2025 Restricted Stock Unit Award granted on January 1, 2025.

Share numbers rounded.

The total amount reported includes previously credited dividends and dividend equivalents acquired in 2025. Dividends and dividend equivalents are acquired pursuant to a dividend reinvestment feature of the Company's Long-Term Incentive Plan. Dividend equivalents vest at the same time as the award to which they relate.

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.

Shares are held by the Christopher M. Connor Trust, a revocable trust for which the reporting person serves as trustee and retains the power to revoke.

2026 Inducement Restricted Stock Unit Award granted on January 5, 2026. One-third of the award vests on each of January 5, 2027, January 5, 2028, and January 5, 2029, subject to continued employment through such date.

Share numbers rounded.

2026 Restricted Stock Unit Award granted on January 1, 2026. One third of the grant vests on each of February 1, 2027, February 1, 2028, and February 1, 2029.

Share numbers rounded.

Shares withheld for taxes for the 2024 Retention Restricted Share Unit Award granted on January 1, 2024 that fully vested on January 1, 2026.

Share numbers rounded.

As part of the International Paper Company's (the "Company's") planned divestiture of its Global Cellulose Fibers business to American Industrial Partners ("AIP"), the Company liquidated International Paper common stock held in the Company stock fund of the International Paper Company Salaried Savings Plan and transitioned the resulting cash value for reinvestment in a new savings plan. This transition was an administrative step carried out as part of the broader divestment process and followed established procedures, rather than any discretionary action by eligible contributing employees in the SSP. As a consequence of this liquidation and reinvestment, there was a disposition of units of Shares attributable to Clayton R. Ellis.

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $45.50 to $45.58, inclusive. The reporting person undertakes to provide to International Paper Company, any security holder of International Paper Company, 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 ranges set forth in this footnote.

Share numbers rounded.

Represents shares withheld for the payment of tax liability from the vesting of the award to the reporting person for service as a director for the 2024-2025 service year.

Share numbers rounded.

Represents shares withheld for the payment of tax liability from the vesting of the award to the reporting person for service as a director for the 2024-2025 service year.

Share numbers rounded.

The shares reported were awarded to the participant for service as a director for the 2025-2026 service year. Shares become free of restrictions and non-forfeitable on the earliest of: (1) May 12, 2026, (ii) death, (iii) disability, (iv) retirement or (v) resignation with the consent of the Board of Directors. In the event of a resignation, the award would be reduced pro rata based on length of service.

Share numbers rounded.

The shares reported were awarded to the participant for service as a director for the 2025-2026 service year. Shares become free of restrictions and non-forfeitable on the earliest of: (1) May 12, 2026, (ii) death, (iii) disability, (iv) retirement or (v) resignation with the consent of the Board of Directors. In the event of a resignation, the award would be reduced pro rata based on length of service.

The units reported were awarded to the reporting person for service as a director for the 2025-2026 service year. Restricted stock units (units) held in the Restricted Stock and Deferred Compensation Plan for Non-Employee Directors represent one share of International Paper Company common stock. The units are settled in cash on January 1 following the year in which the reporting person terminates service as a director.

Share numbers rounded.

The total amount reported includes previously credited dividend equivalents. Dividend equivalents are acquired pursuant to a dividend reinvestment feature of the Company's Long-Term Incentive Plan. Dividends vest at the same time as the award to which they relate.

The units reported were awarded to the reporting person for service as a director for the 2025-2026 service year. Restricted stock units (units) held in the Restricted Stock and Deferred Compensation Plan for Non-Employee Directors represent one share of International Paper Company common stock. The units are settled in cash on January 1 following the year in which the reporting person terminates service as a director.

Share numbers rounded.

The total amount reported includes previously credited dividend equivalents. Dividend equivalents are acquired pursuant to a dividend reinvestment feature of the Company's Long-Term Incentive Plan. Dividends vest at the same time as the award to which they relate.

Share numbers rounded.

The shares reported were awarded to the participant for service as a director for the 2025-2026 service year. Shares become free of restrictions and non-forfeitable on the earliest of: (1) May 12, 2026, (ii) death, (iii) disability, (iv) retirement or (v) resignation with the consent of the Board of Directors. In the event of a resignation, the award would be reduced pro rata based on length of service.

The total amount reported includes previously credited dividend equivalents. Dividend equivalents are acquired pursuant to a dividend reinvestment feature of the Company's Long-Term Incentive Plan. Dividends vest at the same time as the award to which they relate.