X0508 4 2026-03-01 false 0001856485 Sylvamo Corp SLVM 0001878541 Barron Matthew 6077 PRIMACY PARKWAY MEMPHIS TN 38119 false true false false SVP, Chief Admin & Legal false Common Stock 2026-03-01 4 A false 8868.00 0.00 A 44063.3245 D Common Stock 2026-03-01 4 A false 7853.9926 0.00 A 51917.3171 D Common Stock 2026-03-01 4 F false 3478.5954 46.30 D 48438.7217 D 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. The reported securities represent performance-based restricted stock units ("PSUs") that vested and settled one-for-one in common stock on March 1, 2026, rounded to four decimal places. The PSUs were granted on March 1, 2023 under the issuer's long-term incentive plan, with vesting contingent upon the achievement of financial performance criteria. 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). /s/ Maria St. John Daugherty, attorney in fact for Matthew L. Barron 2026-03-03