SLVM · Sylvamo Corp

Consists of dividend equivalent units ("DEUs") accrued on restricted stock units ("RSUs") and/or deferred stock units ("DSUs") previously granted to the Reporting Person under the Sylvamo Corporation Restricted Stock and Deferred Compensation Plan for Non-Employee Directors ("Plan"), in connection with a dividend paid on shares of Sylvamo Corporation common stock. The DEUs will vest and be settled on the same terms and conditions as the original RSUs or DSUs to which they relate. Each DEU represents the right to receive, subject to vesting, one share of Sylvamo Corporation common stock. The number of DEUs has been rounded to 4 decimal points.

Consists of dividend equivalent units ("DEUs") accrued on restricted stock units ("RSUs") previously granted to the Reporting Person. The DEUs will vest and be settled on the same terms and conditions as the original RSUs to which they relate. Each DEU represents the right to receive, subject to vesting, one share of Sylvamo Corporation common stock. The number of DEUs has been rounded to 4 decimal points.

Consists of dividend equivalent units ("DEUs") accrued on restricted stock units ("RSUs") previously granted to the Reporting Person. The DEUs will vest and be settled on the same terms and conditions as the original RSUs to which they relate. Each DEU represents the right to receive, subject to vesting, one share of Sylvamo Corporation common stock. The number of DEUs has been rounded to 4 decimal points.

Consists of dividend equivalent units ("DEUs") accrued on restricted stock units ("RSUs") and/or deferred stock units ("DSUs") previously granted to the Reporting Person under the Sylvamo Corporation Restricted Stock and Deferred Compensation Plan for Non-Employee Directors ("Plan"), in connection with a dividend paid on shares of Sylvamo Corporation common stock. The DEUs will vest and be settled on the same terms and conditions as the original RSUs or DSUs to which they relate. Each DEU represents the right to receive, subject to vesting, one share of Sylvamo Corporation common stock. The number of DEUs has been rounded to 4 decimal points.

Consists of dividend equivalent units ("DEUs") accrued on restricted stock units ("RSUs") and/or deferred stock units ("DSUs") previously granted to the Reporting Person under the Sylvamo Corporation Restricted Stock and Deferred Compensation Plan for Non-Employee Directors ("Plan"), in connection with a dividend paid on shares of Sylvamo Corporation common stock. The DEUs will vest and be settled on the same terms and conditions as the original RSUs or DSUs to which they relate. Each DEU represents the right to receive, subject to vesting, one share of Sylvamo Corporation common stock. The number of DEUs has been rounded to 4 decimal points.

Consists of dividend equivalent units ("DEUs") accrued on restricted stock units ("RSUs") previously granted to the Reporting Person. The DEUs will vest and be settled on the same terms and conditions as the original RSUs to which they relate. Each DEU represents the right to receive, subject to vesting, one share of Sylvamo Corporation common stock. The number of DEUs has been rounded to 4 decimal points.

Consists of dividend equivalent units ("DEUs") accrued on restricted stock units ("RSUs") previously granted to the Reporting Person. The DEUs will vest and be settled on the same terms and conditions as the original RSUs to which they relate. Each DEU represents the right to receive, subject to vesting, one share of Sylvamo Corporation common stock. The number of DEUs has been rounded to 4 decimal points.

Consists of dividend equivalent units ("DEUs") accrued on restricted stock units ("RSUs") previously granted to the Reporting Person. The DEUs will vest and be settled on the same terms and conditions as the original RSUs to which they relate. Each DEU represents the right to receive, subject to vesting, one share of Sylvamo Corporation common stock. The number of DEUs has been rounded to 4 decimal points.

Consists of dividend equivalent units ("DEUs") accrued on restricted stock units ("RSUs") previously granted to the Reporting Person. The DEUs will vest and be settled on the same terms and conditions as the original RSUs to which they relate. Each DEU represents the right to receive, subject to vesting, one share of Sylvamo Corporation common stock. The number of DEUs has been rounded to 4 decimal points.

Consists of dividend equivalent units ("DEUs") accrued on restricted stock units ("RSUs") and/or deferred stock units ("DSUs") previously granted to the Reporting Person under the Sylvamo Corporation Restricted Stock and Deferred Compensation Plan for Non-Employee Directors ("Plan"), in connection with a dividend paid on shares of Sylvamo Corporation common stock. The DEUs will vest and be settled on the same terms and conditions as the original RSUs or DSUs to which they relate. Each DEU represents the right to receive, subject to vesting, one share of Sylvamo Corporation common stock. The number of DEUs has been rounded to 4 decimal points.

Consists of dividend equivalent units ("DEUs") accrued on restricted stock units ("RSUs") and/or deferred stock units ("DSUs") previously granted to the Reporting Person under the Sylvamo Corporation Restricted Stock and Deferred Compensation Plan for Non-Employee Directors ("Plan"), in connection with a dividend paid on shares of Sylvamo Corporation common stock. The DEUs will vest and be settled on the same terms and conditions as the original RSUs or DSUs to which they relate. Each DEU represents the right to receive, subject to vesting, one share of Sylvamo Corporation common stock. The number of DEUs has been rounded to 4 decimal points.

Consists of dividend equivalent units ("DEUs") accrued on restricted stock units ("RSUs") and/or deferred stock units ("DSUs") previously granted to the Reporting Person under the Sylvamo Corporation Restricted Stock and Deferred Compensation Plan for Non-Employee Directors ("Plan"), in connection with a dividend paid on shares of Sylvamo Corporation common stock. The DEUs will vest and be settled on the same terms and conditions as the original RSUs or DSUs to which they relate. Each DEU represents the right to receive, subject to vesting, one share of Sylvamo Corporation common stock. The number of DEUs has been rounded to 4 decimal points.

Consists of dividend equivalent units ("DEUs") accrued on restricted stock units ("RSUs") previously granted to the Reporting Person. The DEUs will vest and be settled on the same terms and conditions as the original RSUs to which they relate. Each DEU represents the right to receive, subject to vesting, one share of Sylvamo Corporation common stock. The number of DEUs has been rounded to 4 decimal points.

Consists of dividend equivalent units ("DEUs") accrued on restricted stock units ("RSUs") previously granted to the Reporting Person. The DEUs will vest and be settled on the same terms and conditions as the original RSUs to which they relate. Each DEU represents the right to receive, subject to vesting, one share of Sylvamo Corporation common stock. The number of DEUs has been rounded to 4 decimal points.

Consists of dividend equivalent units ("DEUs") accrued on restricted stock units ("RSUs") and/or deferred stock units ("DSUs") previously granted to the Reporting Person under the Sylvamo Corporation Restricted Stock and Deferred Compensation Plan for Non-Employee Directors ("Plan"), in connection with a dividend paid on shares of Sylvamo Corporation common stock. The DEUs will vest and be settled on the same terms and conditions as the original RSUs or DSUs to which they relate. Each DEU represents the right to receive, subject to vesting, one share of Sylvamo Corporation common stock. The number of DEUs has been rounded to 4 decimal points.

Consists of dividend equivalent units ("DEUs") accrued on restricted stock units ("RSUs") and/or deferred stock units ("DSUs") previously granted to the Reporting Person under the Sylvamo Corporation Restricted Stock and Deferred Compensation Plan for Non-Employee Directors ("Plan"), in connection with a dividend paid on shares of Sylvamo Corporation common stock. The DEUs will vest and be settled on the same terms and conditions as the original RSUs or DSUs to which they relate. Each DEU represents the right to receive, subject to vesting, one share of Sylvamo Corporation common stock. The number of DEUs has been rounded to 4 decimal points.

Consists of dividend equivalent units ("DEUs") accrued on restricted stock units ("RSUs") previously granted to the Reporting Person. The DEUs will vest and be settled on the same terms and conditions as the original RSUs to which they relate. Each DEU represents the right to receive, subject to vesting, one share of Sylvamo Corporation common stock. The number of DEUs has been rounded to 4 decimal points.

Represents shares withheld for taxes in connection with vesting of RSUs. The deemed disposition of the withheld shares is exempt pursuant to Rule 16b-3(e).

Represents shares withheld for taxes in connection with vesting of RSUs. The deemed disposition of the withheld shares is exempt pursuant to Rule 16b-3(e).

Represents shares withheld for taxes in connection with vesting of RSUs. The deemed disposition of the withheld shares is exempt pursuant to Rule 16b-3(e).

The reported securities represent time-based restricted stock units ("RSUs") that were granted to the reporting person for service as a director for the 2026-2027 performance year and that will vest upon the earlier of May 13, 2027, or the next annual shareowners meeting. The reporting person has elected to defer settlement of vested RSUs until the first to occur of May 13, 2032, or the termination of her service as a director.

The reported securities represent time-based restricted stock units ("RSUs") that were granted to the reporting person for service as a director for the 2026-2027 performance year. The RSUs will vest and settle one-for-one in common stock upon the earlier of May 13, 2027, or the next annual shareowners meeting.

The reported securities represent time-based restricted stock units ("RSUs") that were granted to the reporting person for service as a director for the 2026-2027 performance year. The RSUs will vest and settle one-for-one in common stock upon the earlier of May 13, 2027, or the next annual shareowners meeting.

The reported securities represent time-based restricted stock units ("RSUs") that were granted to the reporting person for service as a director for the 2026-2027 performance year. The RSUs will vest and settle one-for-one in common stock upon the earlier of May 13, 2027, or the next annual shareowners meeting.

The reported securities represent time-based restricted stock units ("RSUs") that were granted to the reporting person for service as a director for the 2026-2027 performance year and that will vest upon the earlier of May 13, 2027, or the next annual shareowners meeting.

The reported securities represent 3,876 time-based restricted stock units ("RSUs") and 3,747 RSUs that the reporting person elected to receive in lieu of a cash retainer. The RSUs will vest one-for-one in common stock on the earlier of May 13, 2027, or the next annual shareowners meeting. The reporting person has elected to defer the settlement of vested RSUs until the first to occur of May 13, 2032, or the termination of his service as a director. The RSUs were granted to the reporting person on May 15, 2026, for service as a director for the 2026-2027 performance year.

This Form 4/A amends the Form 4 originally filed on May 19, 2026, to correct the number of shares reported as acquired. The number of shares originally reported was understated due to administrative error. The corrected number of shares acquired is 10,207.

The reported securities represent 3,876 time-based restricted stock units ("RSUs") and 6,331 RSUs that the reporting person elected to receive in lieu of a cash retainer. The RSUs will vest one-for-one in common stock on the earlier of May 13, 2027, or the next annual shareowners meeting. The reporting person has elected to defer the settlement of vested RSUs until the first to occur of May 13, 2032, or the termination of his service as a director. The RSUs were granted to the reporting person on May 15, 2026, for service as a director for the 2026-2027 performance year.

Consists of dividend equivalent units ("DEUs") accrued on restricted stock units ("RSUs") previously granted to the Reporting Person. The DEUs will vest and be settled on the same terms and conditions as the original RSUs to which they relate. Each DEU represents the right to receive, subject to vesting, one share of Sylvamo Corporation common stock. The number of DEUs has been rounded to 4 decimal points.

Consists of dividend equivalent units ("DEUs") accrued on restricted stock units ("RSUs") and/or deferred stock units ("DSUs") previously granted to the Reporting Person under the Sylvamo Corporation Restricted Stock and Deferred Compensation Plan for Non-Employee Directors ("Plan"), in connection with a dividend paid on shares of Sylvamo Corporation common stock. The DEUs will vest and be settled on the same terms and conditions as the original RSUs or DSUs to which they relate. Each DEU represents the right to receive, subject to vesting, one share of Sylvamo Corporation common stock. The number of DEUs has been rounded to 4 decimal points.

Consists of dividend equivalent units ("DEUs") accrued on restricted stock units ("RSUs") previously granted to the Reporting Person. The DEUs will vest and be settled on the same terms and conditions as the original RSUs to which they relate. Each DEU represents the right to receive, subject to vesting, one share of Sylvamo Corporation common stock. The number of DEUs has been rounded to 4 decimal points.

Consists of dividend equivalent units ("DEUs") accrued on restricted stock units ("RSUs") and/or deferred stock units ("DSUs") previously granted to the Reporting Person under the Sylvamo Corporation Restricted Stock and Deferred Compensation Plan for Non-Employee Directors ("Plan"), in connection with a dividend paid on shares of Sylvamo Corporation common stock. The DEUs will vest and be settled on the same terms and conditions as the original RSUs or DSUs to which they relate. Each DEU represents the right to receive, subject to vesting, one share of Sylvamo Corporation common stock. The number of DEUs has been rounded to 4 decimal points.

Consists of dividend equivalent units ("DEUs") accrued on restricted stock units ("RSUs") previously granted to the Reporting Person. The DEUs will vest and be settled on the same terms and conditions as the original RSUs to which they relate. Each DEU represents the right to receive, subject to vesting, one share of Sylvamo Corporation common stock. The number of DEUs has been rounded to 4 decimal points.

Consists of dividend equivalent units ("DEUs") accrued on restricted stock units ("RSUs") previously granted to the Reporting Person. The DEUs will vest and be settled on the same terms and conditions as the original RSUs to which they relate. Each DEU represents the right to receive, subject to vesting, one share of Sylvamo Corporation common stock. The number of DEUs has been rounded to 4 decimal points.

Consists of dividend equivalent units ("DEUs") accrued on restricted stock units ("RSUs") and/or deferred stock units ("DSUs") previously granted to the Reporting Person under the Sylvamo Corporation Restricted Stock and Deferred Compensation Plan for Non-Employee Directors ("Plan"), in connection with a dividend paid on shares of Sylvamo Corporation common stock. The DEUs will vest and be settled on the same terms and conditions as the original RSUs or DSUs to which they relate. Each DEU represents the right to receive, subject to vesting, one share of Sylvamo Corporation common stock. The number of DEUs has been rounded to 4 decimal points.

Consists of dividend equivalent units ("DEUs") accrued on restricted stock units ("RSUs") and/or deferred stock units ("DSUs") previously granted to the Reporting Person under the Sylvamo Corporation Restricted Stock and Deferred Compensation Plan for Non-Employee Directors ("Plan"), in connection with a dividend paid on shares of Sylvamo Corporation common stock. The DEUs will vest and be settled on the same terms and conditions as the original RSUs or DSUs to which they relate. Each DEU represents the right to receive, subject to vesting, one share of Sylvamo Corporation common stock. The number of DEUs has been rounded to 4 decimal points.

Consists of dividend equivalent units ("DEUs") accrued on restricted stock units ("RSUs") previously granted to the Reporting Person. The DEUs will vest and be settled on the same terms and conditions as the original RSUs to which they relate. Each DEU represents the right to receive, subject to vesting, one share of Sylvamo Corporation common stock. The number of DEUs has been rounded to 4 decimal points.

Consists of dividend equivalent units ("DEUs") accrued on restricted stock units ("RSUs") and/or deferred stock units ("DSUs") previously granted to the Reporting Person under the Sylvamo Corporation Restricted Stock and Deferred Compensation Plan for Non-Employee Directors ("Plan"), in connection with a dividend paid on shares of Sylvamo Corporation common stock. The DEUs will vest and be settled on the same terms and conditions as the original RSUs or DSUs to which they relate. Each DEU represents the right to receive, subject to vesting, one share of Sylvamo Corporation common stock. The number of DEUs has been rounded to 4 decimal points.

Consists of dividend equivalent units ("DEUs") accrued on restricted stock units ("RSUs") and/or deferred stock units ("DSUs") previously granted to the Reporting Person under the Sylvamo Corporation Restricted Stock and Deferred Compensation Plan for Non-Employee Directors ("Plan"), in connection with a dividend paid on shares of Sylvamo Corporation common stock. The DEUs will vest and be settled on the same terms and conditions as the original RSUs or DSUs to which they relate. Each DEU represents the right to receive, subject to vesting, one share of Sylvamo Corporation common stock. The number of DEUs has been rounded to 4 decimal points.

Consists of dividend equivalent units ("DEUs") accrued on restricted stock units ("RSUs") previously granted to the Reporting Person. The DEUs will vest and be settled on the same terms and conditions as the original RSUs to which they relate. Each DEU represents the right to receive, subject to vesting, one share of Sylvamo Corporation common stock. The number of DEUs has been rounded to 4 decimal points.

Consists of dividend equivalent units ("DEUs") accrued on restricted stock units ("RSUs") previously granted to the Reporting Person. The DEUs will vest and be settled on the same terms and conditions as the original RSUs to which they relate. Each DEU represents the right to receive, subject to vesting, one share of Sylvamo Corporation common stock. The number of DEUs has been rounded to 4 decimal points.

Consists of dividend equivalent units ("DEUs") accrued on restricted stock units ("RSUs") previously granted to the Reporting Person. The DEUs will vest and be settled on the same terms and conditions as the original RSUs to which they relate. Each DEU represents the right to receive, subject to vesting, one share of Sylvamo Corporation common stock. The number of DEUs has been rounded to 4 decimal points.

Consists of dividend equivalent units ("DEUs") accrued on restricted stock units ("RSUs") previously granted to the Reporting Person. The DEUs will vest and be settled on the same terms and conditions as the original RSUs to which they relate. Each DEU represents the right to receive, subject to vesting, one share of Sylvamo Corporation common stock. The number of DEUs has been rounded to 4 decimal points.

Consists of dividend equivalent units ("DEUs") accrued on restricted stock units ("RSUs") and/or deferred stock units ("DSUs") previously granted to the Reporting Person under the Sylvamo Corporation Restricted Stock and Deferred Compensation Plan for Non-Employee Directors ("Plan"), in connection with a dividend paid on shares of Sylvamo Corporation common stock. The DEUs will vest and be settled on the same terms and conditions as the original RSUs or DSUs to which they relate. Each DEU represents the right to receive, subject to vesting, one share of Sylvamo Corporation common stock. The number of DEUs has been rounded to 4 decimal points.

average sale price, rounded

average sale price, rounded

The price reported in Column 4 is a weighted average price, rounded to the nearest cent. These shares were sold in multiple transactions at prices ranging from $46.4605 to $46.5400, inclusive. The Reporting Person undertakes to provide to Sylvamo Corporation, any security holder of Sylvamo Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold in each transaction at each separate price within the ranges set forth herein.

Represents shares withheld for taxes in connection with vesting of RSUs and PSUs, rounded to four decimal places. The deemed disposition of the withheld shares is exempt pursuant to Rule 16b-3(e).

The reported securities represent time-based restricted stock units ("RSUs") that settle one-for-one in common stock upon vesting. The RSUs will vest, subject to the reporting person's continued service, one-third on each of March 1, 2027, March 1, 2028, and March 1, 2029. Accelerated vesting of a prorated number of the RSUs would occur, based upon length of service during the RSU vesting period and subject to the RSU award terms and conditions, upon employment termination resulting in severance rights, resulting from a business divestiture, or due to death, disability or retirement.

Represents shares withheld for taxes in connection with vesting of RSUs, rounded to four decimal places. The deemed disposition of the withheld shares is exempt pursuant to Rule 16b-3(e).