144 0001754874 XXXXXXXX LIVE 0001441236 Clearwater Paper Corp 001-34146 601 WEST RIVERSIDE AVENUE SUITE 1100 SPOKANE WA 99201 509.344.5900 Bowden Steve M Officer Common Fidelity Brokerage Services LLC

900 Salem Street Smithfield RI 02917

8889 161253.35 16038337 11/28/2025 NYSE Common 10/01/2021 Restricted Stock Vesting Issuer N 490 10/01/2021 Compensation Common 02/28/2023 Restricted Stock Vesting Issuer N 1622 02/28/2023 Compensation Common 03/03/2023 Restricted Stock Vesting Issuer N 3313 03/03/2023 Compensation Common 03/04/2024 Restricted Stock Vesting Issuer N 2305 03/04/2024 Compensation Common 03/15/2024 Restricted Stock Vesting Issuer N 1159 03/15/2024 Compensation Y 11/28/2025 08/29/2025 /s/ Jared Cook, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Steve M. Bowden