SEC Filing Summary

This filing details transactions made by Arsen S. Kitch, President and CEO of Clearwater Paper Corp, on March 15, 2026. Mr. Kitch disposed of shares of Common Stock, with 5388 shares disposed at a price of $13.11, followed by 4965 shares at the same price, and then 3170 shares also at $13.11. These transactions were to satisfy tax withholding requirements related to the vesting of restricted stock units from grants in 2023, 2024, and 2025. Following these transactions, the post-transaction share ownership figures were 402,010, 397,045, and 393,875 shares, respectively. The filing is Form 4, indicating a change in beneficial ownership.