IP

SEC source: 0000051434-26-000137 · form4.xml · derivative · entry 1

Ryerkerk Lori · CIK 0001449522 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Plan

Disclosed balance after: 5,952

Underlying: Common Stock · 5,952 shares

Expires not disclosed

F1 · derivative.exercise_price: 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.

F1 · derivative.exercise_date: 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.

F1 · derivative.expiration_date: 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.

F2 · balance_after: Share numbers rounded.

F1 · ownership.nature: 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.

SEC source: 0000051434-26-000135 · form4.xml · derivative · entry 1

Collins Katherine · CIK 0002150547 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Plan

Disclosed balance after: 6,129

Underlying: Common Stock · 6,129 shares

Expires not disclosed

F1 · derivative.exercise_price: 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.

F1 · derivative.exercise_date: 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.

F1 · derivative.expiration_date: 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.

F2 · derivative.underlying_shares: Share numbers rounded.

F1 · ownership.nature: 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.

SEC source: 0000051434-26-000125 · form4.xml · derivative · entry 3

Hamic William Thomas · CIK 0001795088 · Exec. VP & President

10b5-1 filing: No plan indicated

Ownership: Indirect · By Plan

Disclosed balance after: 39,570

Underlying: Common Stock · 24,291 shares

Expires not disclosed

F4 · derivative.exercise_price: Represents an intra-plan transfer under the non-funded International Paper Company Deferred Compensation Savings Plan from another investment fund into the Company Stock Fund. The transaction does not involve an open-market purchase or sale of International Paper common stock. Each unit represents one share of International Paper common stock. The number of units will vary as the price of the issuer's common stock varies. The units will be settled in cash upon termination of employment. This information is based on a plan statement as of August 7, 2026.

F4 · derivative.exercise_date: Represents an intra-plan transfer under the non-funded International Paper Company Deferred Compensation Savings Plan from another investment fund into the Company Stock Fund. The transaction does not involve an open-market purchase or sale of International Paper common stock. Each unit represents one share of International Paper common stock. The number of units will vary as the price of the issuer's common stock varies. The units will be settled in cash upon termination of employment. This information is based on a plan statement as of August 7, 2026.

F4 · derivative.expiration_date: Represents an intra-plan transfer under the non-funded International Paper Company Deferred Compensation Savings Plan from another investment fund into the Company Stock Fund. The transaction does not involve an open-market purchase or sale of International Paper common stock. Each unit represents one share of International Paper common stock. The number of units will vary as the price of the issuer's common stock varies. The units will be settled in cash upon termination of employment. This information is based on a plan statement as of August 7, 2026.

F2 · derivative.underlying_shares: Share numbers rounded.

F2 · balance_after: Share numbers rounded.

SEC source: 0000051434-26-000125 · form4.xml · nonDerivative · entry 1

Hamic William Thomas · CIK 0001795088 · Exec. VP & President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 106,952

F1 · price: Represents the weighted average price for 24,500 shares purchased on August 7, 2026, at prices ranging from $41.0400 and $41.1999, 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.

F2 · balance_after: Share numbers rounded.

SEC source: 0000051434-26-000118 · form4.xml · nonDerivative · entry 1

Goughnour Holly G. · CIK 0001924937 · VP & Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 34,248

F1 · balance_after: Share numbers rounded.

SEC source: 0000051434-26-000097 · form4.xml · nonDerivative · entry 2

ROBBIE DAVID A. · CIK 0002056337 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,769

F1 · shares: Share numbers rounded.

F4 · shares: 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.

F1 · balance_after: Share numbers rounded.

SEC source: 0000051434-26-000097 · form4.xml · nonDerivative · entry 1

ROBBIE DAVID A. · CIK 0002056337 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,002

F1 · shares: Share numbers rounded.

F2 · shares: 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.

F1 · balance_after: Share numbers rounded.

F3 · balance_after: 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.

SEC source: 0000051434-26-000094 · form4.xml · nonDerivative · entry 2

Dorduncu Ahmet C · CIK 0001513254 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 44,207

F1 · shares: Share numbers rounded.

F3 · shares: 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.

F1 · balance_after: Share numbers rounded.

SEC source: 0000051434-26-000094 · form4.xml · nonDerivative · entry 1

Dorduncu Ahmet C · CIK 0001513254 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 45,393

F1 · shares: Share numbers rounded.

F2 · shares: 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.

F1 · balance_after: Share numbers rounded.

SEC source: 0000051434-26-000092 · form4.xml · nonDerivative · entry 1

Hinman Jacqueline C. · CIK 0001434505 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 77,512

F1 · shares: Share numbers rounded.

F2 · shares: 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.

F1 · balance_after: Share numbers rounded.

F3 · balance_after: 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.

SEC source: 0000051434-26-000090 · form4.xml · nonDerivative · entry 1

GUSTAFSSON ANDERS · CIK 0001129136 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 66,746

F1 · shares: Share numbers rounded.

F2 · shares: 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.

F1 · balance_after: Share numbers rounded.

SEC source: 0000051434-26-000088 · form4.xml · nonDerivative · entry 1

SULLIVAN KATHRYN D · CIK 0001185566 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 53,777

F1 · shares: Share numbers rounded.

F2 · shares: 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.

F1 · balance_after: Share numbers rounded.

F3 · balance_after: 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.

SEC source: 0000051434-26-000086 · form4.xml · derivative · entry 1

Vincent Anton V. · CIK 0001848348 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Plan

Disclosed balance after: 54,013

Underlying: Common Stock · 10,203 shares

Expires not disclosed

F1 · derivative.exercise_price: 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.

F1 · derivative.exercise_date: 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.

F1 · derivative.expiration_date: 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.

F2 · derivative.underlying_shares: Share numbers rounded.

F2 · balance_after: Share numbers rounded.

F3 · balance_after: 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.

F1 · ownership.nature: 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.

SEC source: 0000051434-26-000084 · form4.xml · derivative · entry 1

Tozier Scott · CIK 0001511133 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Plan

Disclosed balance after: 21,655

Underlying: Common Stock · 5,298 shares

Expires not disclosed

F1 · derivative.exercise_price: 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.

F1 · derivative.exercise_date: 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.

F1 · derivative.expiration_date: 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.

F2 · derivative.underlying_shares: Share numbers rounded.

F2 · balance_after: Share numbers rounded.

F3 · balance_after: 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.

SEC source: 0000051434-26-000082 · form4.xml · derivative · entry 1

Lewis Clinton A. Jr. · CIK 0001567831 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Plan

Disclosed balance after: 87,679

Underlying: Common Stock · 10,809 shares

Expires not disclosed

F1 · derivative.exercise_price: 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.

F1 · derivative.exercise_date: 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.

F1 · derivative.expiration_date: 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.

F2 · derivative.underlying_shares: Share numbers rounded.

F2 · balance_after: Share numbers rounded.

F3 · balance_after: 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.

SEC source: 0000051434-26-000079 · form4.xml · derivative · entry 1

Connor Christopher M · CIK 0001181680 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Plan

Disclosed balance after: 94,749

Underlying: Common Stock · 11,414 shares

Expires not disclosed

F1 · derivative.exercise_price: 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.

F1 · derivative.exercise_date: 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.

F1 · derivative.expiration_date: 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.

F2 · derivative.underlying_shares: Share numbers rounded.

F2 · balance_after: Share numbers rounded.

F3 · balance_after: 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.

SEC source: 0000051434-26-000077 · form4.xml · derivative · entry 1

Beggs Jamie A. · CIK 0001821820 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Plan

Disclosed balance after: 26,863

Underlying: Common Stock · 10,506 shares

Expires not disclosed

F1 · derivative.exercise_date: 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.

F1 · derivative.expiration_date: 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.

F2 · derivative.underlying_shares: Share numbers rounded.

F2 · balance_after: Share numbers rounded.

F3 · balance_after: 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

SEC source: 0000051434-26-000070 · form4.xml · nonDerivative · entry 1

Tozier Scott · CIK 0001511133 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,025

F1 · price: 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.

SEC source: 0000051434-26-000064 · form4.xml · nonDerivative · entry 1

Goughnour Holly G. · CIK 0001924937 · VP & Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 37,748

F1 · shares: 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.

F2 · balance_after: Share numbers rounded.

SEC source: 0000051434-26-000062 · form4.xml · nonDerivative · entry 1

Loeffler Lance · CIK 0001759163 · Senior VP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 29,162

F1 · shares: 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.

F2 · balance_after: Share numbers rounded.

SEC source: 0000051434-26-000060 · form4.xml · nonDerivative · entry 1

Hamic William Thomas · CIK 0001795088 · Exec. VP & President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 131,452

F1 · shares: Shares withheld to cover tax obligations related to the vesting of the 2024 Recognition Restricted Stock Unit Award granted on June 14, 2024.

F2 · balance_after: Share numbers rounded.

SEC source: 0000051434-26-000058 · form4.xml · nonDerivative · entry 2

GUSTAFSSON ANDERS · CIK 0001129136 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 26,092

F1 · shares: Shares are held in a joint brokerage account with the reporting person's spouse.

F3 · price: 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.

SEC source: 0000051434-26-000058 · form4.xml · nonDerivative · entry 1

GUSTAFSSON ANDERS · CIK 0001129136 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,875

F1 · shares: Shares are held in a joint brokerage account with the reporting person's spouse.

F2 · price: 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.

SEC source: 0000051434-26-000044 · form4.xml · nonDerivative · entry 2

Nicholls Timothy S · CIK 0001406890 · Exec. VP & President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 276,986

F3 · shares: Shares withheld to cover tax obligations.

F2 · balance_after: Share numbers rounded.

SEC source: 0000051434-26-000044 · form4.xml · nonDerivative · entry 1

Nicholls Timothy S · CIK 0001406890 · Exec. VP & President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 295,873

F1 · shares: 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.

F2 · balance_after: Share numbers rounded.

SEC source: 0000051434-26-000040 · form4.xml · nonDerivative · entry 2

Saab Joseph R. · CIK 0001934438 · SVP, GC and Corp. Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 43,613

F3 · shares: Shares withheld to cover tax obligations.

F2 · balance_after: Share numbers rounded.

SEC source: 0000051434-26-000040 · form4.xml · nonDerivative · entry 1

Saab Joseph R. · CIK 0001934438 · SVP, GC and Corp. Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 50,881

F1 · shares: 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.

F2 · balance_after: Share numbers rounded.

SEC source: 0000051434-26-000038 · form4.xml · nonDerivative · entry 2

Hamic William Thomas · CIK 0001795088 · Exec. VP & President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 144,118

F3 · shares: Shares withheld to cover tax obligations.

F2 · balance_after: Share numbers rounded.

SEC source: 0000051434-26-000038 · form4.xml · nonDerivative · entry 1

Hamic William Thomas · CIK 0001795088 · Exec. VP & President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 159,430

F1 · shares: 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.

F2 · balance_after: Share numbers rounded.

SEC source: 0000051434-26-000036 · form4.xml · nonDerivative · entry 2

Goughnour Holly G. · CIK 0001924937 · VP & Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 39,021

F3 · shares: Shares withheld to cover tax obligations.

F2 · balance_after: Share numbers rounded.

SEC source: 0000051434-26-000036 · form4.xml · nonDerivative · entry 1

Goughnour Holly G. · CIK 0001924937 · VP & Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 40,564

F1 · shares: 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.

F2 · balance_after: Share numbers rounded.

SEC source: 0000051434-26-000034 · form4.xml · nonDerivative · entry 2

Saab Joseph R. · CIK 0001934438 · SVP, GC and Corp. Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 27,424

F4 · shares: 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.

F2 · balance_after: Share numbers rounded.

SEC source: 0000051434-26-000034 · form4.xml · nonDerivative · entry 1

Saab Joseph R. · CIK 0001934438 · SVP, GC and Corp. Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 26,567

F1 · shares: 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.

F2 · balance_after: Share numbers rounded.

F3 · balance_after: 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.

SEC source: 0000051434-26-000032 · form4.xml · nonDerivative · entry 2

Nicholls Timothy S · CIK 0001406890 · Exec. VP & President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 246,285

F3 · shares: 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.

F2 · balance_after: Share numbers rounded.

F4 · balance_after: 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.

SEC source: 0000051434-26-000032 · form4.xml · nonDerivative · entry 1

Nicholls Timothy S · CIK 0001406890 · Exec. VP & President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 246,421

F1 · shares: 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.

F2 · balance_after: Share numbers rounded.

SEC source: 0000051434-26-000030 · form4.xml · nonDerivative · entry 2

Hamic William Thomas · CIK 0001795088 · Exec. VP & President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 117,476

F4 · shares: 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.

F3 · balance_after: Share numbers rounded.

SEC source: 0000051434-26-000030 · form4.xml · nonDerivative · entry 1

Hamic William Thomas · CIK 0001795088 · Exec. VP & President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 116,205

F1 · shares: 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.

F2 · balance_after: 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.

F3 · balance_after: Share numbers rounded.

SEC source: 0000051434-26-000028 · form4.xml · nonDerivative · entry 3

Goughnour Holly G. · CIK 0001924937 · VP & Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 34,229

F4 · shares: 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.

F2 · balance_after: Share numbers rounded.

F5 · balance_after: 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.

SEC source: 0000051434-26-000028 · form4.xml · nonDerivative · entry 2

Goughnour Holly G. · CIK 0001924937 · VP & Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 34,488

F3 · shares: 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.

F2 · balance_after: Share numbers rounded.

SEC source: 0000051434-26-000028 · form4.xml · nonDerivative · entry 1

Goughnour Holly G. · CIK 0001924937 · VP & Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 34,930

F1 · shares: 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.

F2 · balance_after: Share numbers rounded.

SEC source: 0000051434-26-000042 · form4a.xml · nonDerivative · entry 2

Nicholls Timothy S · CIK 0001406890 · Exec. VP & President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 243,643

F3 · shares: 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.

F2 · balance_after: Share numbers rounded.

SEC source: 0000051434-26-000042 · form4a.xml · nonDerivative · entry 1

Nicholls Timothy S · CIK 0001406890 · Exec. VP & President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 244,914

F1 · shares: 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.

F2 · balance_after: Share numbers rounded.

SEC source: 0000051434-26-000019 · form4.xml · nonDerivative · entry 1

Silvernail Andrew K · CIK 0001485532 · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 50,000

F1 · security: 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.

F2 · price: 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.

SEC source: 0000051434-26-000021 · form4.xml · nonDerivative · entry 1

Connor Christopher M · CIK 0001181680 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 25,000

F1 · security: 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.

SEC source: 0000051434-26-000011 · form4.xml · nonDerivative · entry 1

Flores Melissa S · CIK 0001842788 · SVP & CHRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,845

F1 · shares: 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.

F2 · balance_after: Share numbers rounded.

SEC source: 0000051434-26-000004 · form4.xml · nonDerivative · entry 1

Goughnour Holly G. · CIK 0001924937 · VP & Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 35,410

F1 · shares: 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.

F2 · balance_after: Share numbers rounded.

SEC source: 0000051434-26-000006 · form4.xml · nonDerivative · entry 1

Ellis Clay R · CIK 0001795221 · Senior Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 63,106

F1 · shares: Shares withheld for taxes for the 2024 Retention Restricted Share Unit Award granted on January 1, 2024 that fully vested on January 1, 2026.

F2 · balance_after: Share numbers rounded.

SEC source: 0000051434-25-000079 · form4.xml · nonDerivative · entry 1

Ellis Clay R · CIK 0001795221 · Senior Vice President

10b5-1 filing: No plan indicated

Ownership: Indirect · By Plan

Disclosed balance after: 0

F1 · shares: 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.

SEC source: 0000051434-25-000063 · form4.xml · nonDerivative · entry 1

Saab Joseph R. · CIK 0001934438 · SVP, GC and Corp. Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 27,673

F1 · price: 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.

SEC source: 0001127602-25-014232 · form4.xml · nonDerivative · entry 2

ROBBIE DAVID A. · CIK 0002056337 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,547

F1 · shares: Share numbers rounded.

F4 · shares: 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.

F1 · balance_after: Share numbers rounded.