CLW

SEC source: 0001356114-26-000017 · wk-form4_1791234676.xml · derivative · entry 1

HILLMAN JEANNE M · CIK 0001356114 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,432.968

Underlying: Common Stock · 1,259.64 shares

Expires 2031-01-01

F1 · security: Phantom stock units are credited to the reporting person's account on the transaction date in accordance with the provisions of the Clearwater Paper Corporation Deferred Compensation Plan for Directors and will be converted to cash and paid on a 1-for-1 basis with the issuer's common stock.

F2 · derivative.exercise_date: Phantom stock units will be converted to cash and paid on the date previously elected by the reporting person in accordance with the provisions of the Clearwater Paper Corporation Deferred Compensation Plan for Directors.

F2 · derivative.expiration_date: Phantom stock units will be converted to cash and paid on the date previously elected by the reporting person in accordance with the provisions of the Clearwater Paper Corporation Deferred Compensation Plan for Directors.

F3 · derivative.underlying_shares: Phantom stock unit beneficial ownership represents phantom stock allocated to the reporting person's Deferred Compensation Account since the reporting person's last report. These phantom stock allocations represent deferred quarterly retainer meeting fees.

SEC source: 0001773142-26-000009 · wk-form4_1787087000.xml · nonDerivative · entry 1

Baker Sherri · CIK 0001773142 · SVP, CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 40,847

F1 · shares: Represents shares withheld by Clearwater Paper Corporation to satisfy tax withholding requirements due at settlement of the 2023 special grant of restricted stock units that vested August 15, 2026.

SEC source: 0002074750-26-000011 · wk-form4_1783372219.xml · nonDerivative · entry 1

Rome Marc D. · CIK 0002074750 · SVP, Gen. Counsel & Corp. Sec.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,874

F1 · shares: Represents shares withheld by Clearwater Paper Corporation to satisfy tax withholding requirements due at settlement of the 2025 grant of restricted stock units that vested July 1, 2026.

SEC source: 0001356114-26-000012 · wk-form4_1783372192.xml · derivative · entry 1

HILLMAN JEANNE M · CIK 0001356114 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,173.328

Underlying: Common Stock · 1,549.652 shares

Expires 2031-01-01

F1 · security: Phantom stock units are credited to the reporting person's account on the transaction date in accordance with the provisions of the Clearwater Paper Corporation Deferred Compensation Plan for Directors and will be converted to cash and paid on a 1-for-1 basis with the issuer's common stock.

F2 · derivative.exercise_date: Phantom stock units will be converted to cash and paid on the date previously elected by the reporting person in accordance with the provisions of the Clearwater Paper Corporation Deferred Compensation Plan for Directors.

F2 · derivative.expiration_date: Phantom stock units will be converted to cash and paid on the date previously elected by the reporting person in accordance with the provisions of the Clearwater Paper Corporation Deferred Compensation Plan for Directors.

F3 · derivative.underlying_shares: Phantom stock unit beneficial ownership represents phantom stock allocated to the reporting person's Deferred Compensation Account since the reporting person's last report. These phantom stock allocations represent deferred quarterly retainer meeting fees.

SEC source: 0001725657-26-000008 · wk-form4_1779225538.xml · nonDerivative · entry 1

Kitch Arsen S. · CIK 0001725657 · President, CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 403,029

F1 · security: Represents award of restricted stock units ("RSUs"). RSUs may be settled only for shares of common stock on a one-for-one basis.

F2 · shares: Represents award of RSUs that will vest 33%, 33%, 34% on March 15, 2027, 2028 and 2029, respectively, assuming continued employment. During the vesting period, an amount equal to the dividends that would have been paid on the RSUs had they been in the form of common stock will be converted into additional RSUs.

SEC source: 0001725657-26-000012 · wk-form4a_1780003343.xml · nonDerivative · entry 1

Kitch Arsen S. · CIK 0001725657 · President, CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 403,029

F1 · security: Represents award of restricted stock units ("RSUs"). RSUs may be settled only for shares of common stock on a one-for-one basis.

F2 · shares: Represents award of RSUs that will vest 33%, 33%, 34% on March 15, 2027, 2028 and 2029, respectively, assuming continued employment. During the vesting period, an amount equal to the dividends that would have been paid on the RSUs had they been in the form of common stock will be converted into additional RSUs.

F3 · price: The price previously reported in Column 4 represented the market price used to determine the number of restricted stock units granted and not consideration paid by the reporting person. The award was granted for no cash consideration. This amendment corrects the price reported in the original Form 4.

SEC source: 0002049395-26-000009 · wk-form4_1779225516.xml · nonDerivative · entry 1

Passarello Mathew D · CIK 0002049395 · Sr. V.P.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 26,214

F1 · security: Represents shares withheld by Clearwater Paper Corporation to satisfy tax withholding requirements due at settlement of the 2024 grant of restricted stock units that vested May 15, 2026.

SEC source: 0001811413-26-000003 · wk-form4_1778623508.xml · derivative · entry 1

Nelson Ann C · CIK 0001811413 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 30,593.613

Underlying: Common Stock · 8,391.608 shares

Expires not disclosed

F1 · security: Phantom stock units are credited to the reporting person's account on the transaction date in accordance with the provisions of the Clearwater Paper Corporation Deferred Compensation Plan for Directors and will be converted to cash and paid on a 1-for-1 basis with the issuer's common stock.

F2 · derivative.exercise_date: Phantom stock units will be converted to cash and paid upon the reporting person's termination from service with Clearwater Paper in accordance with the provisions of the Clearwater Paper Corporation Deferred Compensation Plan for Directors.

F2 · derivative.expiration_date: Phantom stock units will be converted to cash and paid upon the reporting person's termination from service with Clearwater Paper in accordance with the provisions of the Clearwater Paper Corporation Deferred Compensation Plan for Directors.

F3 · derivative.underlying_shares: Phantom stock unit beneficial ownership represents phantom stock allocated to the reporting person's Deferred Compensation Account since the reporting person's last report. These phantom stock allocations represent an annual award grant for service from May 1, 2026 through April 30, 2027. These phantom stock units will vest May 1, 2027.

SEC source: 0001860724-26-000004 · wk-form4_1778623626.xml · derivative · entry 1

Vickers Tucker Christine M. · CIK 0001860724 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 26,540.107

Underlying: Common Stock · 8,391.608 shares

Expires not disclosed

F1 · security: Phantom stock units are credited to the reporting person's account on the transaction date in accordance with the provisions of the Clearwater Paper Corporation Deferred Compensation Plan for Directors and will be converted to cash and paid on a 1-for-1 basis with the issuer's common stock.

F2 · derivative.exercise_date: Phantom stock units will be converted to cash and paid upon the reporting person's termination from service with Clearwater Paper in accordance with the provisions of the Clearwater Paper Corporation Deferred Compensation Plan for Directors.

F2 · derivative.expiration_date: Phantom stock units will be converted to cash and paid upon the reporting person's termination from service with Clearwater Paper in accordance with the provisions of the Clearwater Paper Corporation Deferred Compensation Plan for Directors.

F3 · derivative.underlying_shares: Phantom stock unit beneficial ownership represents phantom stock allocated to the reporting person's Deferred Compensation Account since the reporting person's last report. These phantom stock allocations represent an annual award grant for service from May 1, 2026 through April 30, 2027. These phantom stock units will vest May 1, 2027.

SEC source: 0001414260-26-000003 · wk-form4_1778623588.xml · derivative · entry 1

TOELDTE ALEXANDER · CIK 0001414260 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 46,856.445

Underlying: Common Stock · 8,391.608 shares

Expires not disclosed

F1 · security: Phantom stock units are credited to the reporting person's account on the transaction date in accordance with the provisions of the Clearwater Paper Corporation Deferred Compensation Plan for Directors and will be converted to cash and paid on a 1-for-1 basis with the issuer's common stock.

F2 · derivative.exercise_date: Phantom stock units will be converted to cash and paid upon the reporting person's termination from service with Clearwater Paper in accordance with the provisions of the Clearwater Paper Corporation Deferred Compensation Plan for Directors.

F2 · derivative.expiration_date: Phantom stock units will be converted to cash and paid upon the reporting person's termination from service with Clearwater Paper in accordance with the provisions of the Clearwater Paper Corporation Deferred Compensation Plan for Directors.

F3 · derivative.underlying_shares: Phantom stock unit beneficial ownership represents phantom stock allocated to the reporting person's Deferred Compensation Account since the reporting person's last report. These phantom stock allocations represent an annual award grant for service from May 1, 2026 through April 30, 2027. These phantom stock units will vest May 1, 2027.

SEC source: 0001190844-26-000007 · wk-form4_1778623446.xml · derivative · entry 1

LAYMON JOE W · CIK 0001190844 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 35,818.273

Underlying: Common Stock · 8,391.608 shares

Expires not disclosed

F1 · security: Phantom stock units are credited to the reporting person's account on the transaction date in accordance with the provisions of the Clearwater Paper Corporation Deferred Compensation Plan for Directors and will be converted to cash and paid on a 1-for-1 basis with the issuer's common stock.

F2 · derivative.exercise_date: Phantom stock units will be converted to cash and paid upon the reporting person's termination from service with Clearwater Paper in accordance with the provisions of the Clearwater Paper Corporation Deferred Compensation Plan for Directors.

F2 · derivative.expiration_date: Phantom stock units will be converted to cash and paid upon the reporting person's termination from service with Clearwater Paper in accordance with the provisions of the Clearwater Paper Corporation Deferred Compensation Plan for Directors.

F3 · derivative.underlying_shares: Phantom stock unit beneficial ownership represents phantom stock allocated to the reporting person's Deferred Compensation Account since the reporting person's last report. These phantom stock allocations represent an annual award grant for service from May 1, 2026 through April 30, 2027. These phantom stock units will vest May 1, 2027.

SEC source: 0001356114-26-000009 · wk-form4_1778623401.xml · derivative · entry 1

HILLMAN JEANNE M · CIK 0001356114 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,324.556

Underlying: Common Stock · 8,391.608 shares

Expires not disclosed

F1 · security: Phantom stock units are credited to the reporting person's account on the transaction date in accordance with the provisions of the Clearwater Paper Corporation Deferred Compensation Plan for Directors and will be converted to cash and paid on a 1-for-1 basis with the issuer's common stock.

F2 · derivative.exercise_date: Phantom stock units will be converted to cash and paid upon the reporting person's termination from service with Clearwater Paper in accordance with the provisions of the Clearwater Paper Corporation Deferred Compensation Plan for Directors.

F2 · derivative.expiration_date: Phantom stock units will be converted to cash and paid upon the reporting person's termination from service with Clearwater Paper in accordance with the provisions of the Clearwater Paper Corporation Deferred Compensation Plan for Directors.

F3 · derivative.underlying_shares: Phantom stock unit beneficial ownership represents phantom stock allocated to the reporting person's Deferred Compensation Account since the reporting person's last report. These phantom stock allocations represent an annual award grant for service from May 1, 2026 through April 30, 2027. These phantom stock units will vest May 1, 2027.

SEC source: 0001416637-26-000003 · wk-form4_1778623546.xml · derivative · entry 1

O'Donnell John P · CIK 0001416637 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 43,574.528

Underlying: Common Stock · 8,391.608 shares

Expires not disclosed

F1 · security: Phantom stock units are credited to the reporting person's account on the transaction date in accordance with the provisions of the Clearwater Paper Corporation Deferred Compensation Plan for Directors and will be converted to cash and paid on a 1-for-1 basis with the issuer's common stock.

F2 · derivative.exercise_date: Phantom stock units will be converted to cash and paid upon the reporting person's termination from service with Clearwater Paper in accordance with the provisions of the Clearwater Paper Corporation Deferred Compensation Plan for Directors.

F2 · derivative.expiration_date: Phantom stock units will be converted to cash and paid upon the reporting person's termination from service with Clearwater Paper in accordance with the provisions of the Clearwater Paper Corporation Deferred Compensation Plan for Directors.

F3 · derivative.underlying_shares: Phantom stock unit beneficial ownership represents phantom stock allocated to the reporting person's Deferred Compensation Account since the reporting person's last report. These phantom stock allocations represent an annual award grant for service from May 1, 2026 through April 30, 2027. These phantom stock units will vest May 1, 2027.

SEC source: 0001431849-26-000003 · wk-form4_1778623352.xml · derivative · entry 1

Corkrean John J · CIK 0001431849 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 35,818.273

Underlying: Common Stock · 8,391.608 shares

Expires not disclosed

F1 · security: Phantom stock units are credited to the reporting person's account on the transaction date in accordance with the provisions of the Clearwater Paper Corporation Deferred Compensation Plan for Directors and will be converted to cash and paid on a 1-for-1 basis with the issuer's common stock.

F2 · derivative.exercise_date: Phantom stock units will be converted to cash and paid upon the reporting person's termination from service with Clearwater Paper in accordance with the provisions of the Clearwater Paper Corporation Deferred Compensation Plan for Directors.

F2 · derivative.expiration_date: Phantom stock units will be converted to cash and paid upon the reporting person's termination from service with Clearwater Paper in accordance with the provisions of the Clearwater Paper Corporation Deferred Compensation Plan for Directors.

F3 · derivative.underlying_shares: Phantom stock unit beneficial ownership represents phantom stock allocated to the reporting person's Deferred Compensation Account since the reporting person's last report. These phantom stock allocations represent an annual award grant for service from May 1, 2026 through April 30, 2027. These phantom stock units will vest May 1, 2027.

SEC source: 0001356114-26-000006 · wk-form4_1775251231.xml · derivative · entry 1

HILLMAN JEANNE M · CIK 0001356114 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,623.676

Underlying: Common Stock · 1,676.934 shares

Expires 2031-01-01

F1 · security: Phantom stock units are credited to the reporting person's account on the transaction date in accordance with the provisions of the Clearwater Paper Corporation Deferred Compensation Plan for Directors and will be converted to cash and paid on a 1-for-1 basis with the issuer's common stock.

F2 · derivative.exercise_date: Phantom stock units will be converted to cash and paid on the date previously elected by the reporting person in accordance with the provisions of the Clearwater Paper Corporation Deferred Compensation Plan for Directors.

F2 · derivative.expiration_date: Phantom stock units will be converted to cash and paid on the date previously elected by the reporting person in accordance with the provisions of the Clearwater Paper Corporation Deferred Compensation Plan for Directors.

F3 · derivative.underlying_shares: Phantom stock unit beneficial ownership represents phantom stock allocated to the reporting person's Deferred Compensation Account since the reporting person's last report. These phantom stock allocations represent deferred quarterly retainer meeting fees.

SEC source: 0002074750-26-000008 · wk-form4_1773781654.xml · nonDerivative · entry 2

Rome Marc D. · CIK 0002074750 · SVP, Gen. Counsel & Corp. Sec.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,100

F2 · security: Represents shares withheld by Clearwater Paper Corporation to satisfy tax withholding requirements due at settlement of the 2024 grant of restricted stock units that vested March 15, 2026.

SEC source: 0002074750-26-000008 · wk-form4_1773781654.xml · nonDerivative · entry 1

Rome Marc D. · CIK 0002074750 · SVP, Gen. Counsel & Corp. Sec.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,393

F1 · security: Represents shares withheld by Clearwater Paper Corporation to satisfy tax withholding requirements due at settlement of the 2025 grant of restricted stock units that vested March 15, 2026.

SEC source: 0002049395-26-000006 · wk-form4_1773781551.xml · nonDerivative · entry 1

Passarello Mathew D · CIK 0002049395 · Sr. V.P.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 26,393

F1 · security: Represents shares withheld by Clearwater Paper Corporation to satisfy tax withholding requirements due at settlement of the 2025 grant of restricted stock units that vested March 15, 2026.

SEC source: 0001504337-26-000006 · wk-form4_1773781290.xml · nonDerivative · entry 3

Barckley Rebecca Anne · CIK 0001504337 · VP, Controller

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,223

F3 · security: Represents shares withheld by Clearwater Paper Corporation to satisfy tax withholding requirements due at settlement of the 2023 grant of restricted stock units that vested March 15, 2026.

SEC source: 0001504337-26-000006 · wk-form4_1773781290.xml · nonDerivative · entry 2

Barckley Rebecca Anne · CIK 0001504337 · VP, Controller

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,346

F2 · security: Represents shares withheld by Clearwater Paper Corporation to satisfy tax withholding requirements due at settlement of the 2024 grant of restricted stock units that vested March 15, 2026.

SEC source: 0001504337-26-000006 · wk-form4_1773781290.xml · nonDerivative · entry 1

Barckley Rebecca Anne · CIK 0001504337 · VP, Controller

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,487

F1 · security: Represents shares withheld by Clearwater Paper Corporation to satisfy tax withholding requirements due at settlement of the 2025 grant of restricted stock units that vested March 15, 2026.

SEC source: 0001725657-26-000005 · wk-form4_1773781457.xml · nonDerivative · entry 3

Kitch Arsen S. · CIK 0001725657 · President, CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 393,875

F3 · security: Represents shares withheld by Clearwater Paper Corporation to satisfy tax withholding requirements due at settlement of the 2023 grant of restricted stock units that vested March 15, 2026.

SEC source: 0001725657-26-000005 · wk-form4_1773781457.xml · nonDerivative · entry 2

Kitch Arsen S. · CIK 0001725657 · President, CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 397,045

F2 · security: Represents shares withheld by Clearwater Paper Corporation to satisfy tax withholding requirements due at settlement of the 2024 grant of restricted stock units that vested March 15, 2026.

SEC source: 0001725657-26-000005 · wk-form4_1773781457.xml · nonDerivative · entry 1

Kitch Arsen S. · CIK 0001725657 · President, CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 402,010

F1 · security: Represents shares withheld by Clearwater Paper Corporation to satisfy tax withholding requirements due at settlement of the 2025 grant of restricted stock units that vested March 15, 2026.

SEC source: 0002103766-26-000007 · wk-form4_1773781509.xml · nonDerivative · entry 3

Krajnik Sean M. · CIK 0002103766 · Senior Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,873

F3 · security: Represents shares withheld by Clearwater Paper Corporation to satisfy tax withholding requirements due at settlement of the 2023 grant of restricted stock units that vested March 15, 2026.

SEC source: 0002103766-26-000007 · wk-form4_1773781509.xml · nonDerivative · entry 2

Krajnik Sean M. · CIK 0002103766 · Senior Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 25,066

F2 · security: Represents shares withheld by Clearwater Paper Corporation to satisfy tax withholding requirements due at settlement of the 2024 grant of restricted stock units that vested March 15, 2026.

SEC source: 0002103766-26-000007 · wk-form4_1773781509.xml · nonDerivative · entry 1

Krajnik Sean M. · CIK 0002103766 · Senior Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 25,600

F1 · security: Represents shares withheld by Clearwater Paper Corporation to satisfy tax withholding requirements due at settlement of the 2025 grant of restricted stock units that vested March 15, 2026.

SEC source: 0001754874-26-000005 · wk-form4_1773781396.xml · nonDerivative · entry 3

Bowden Steve M · CIK 0001754874 · Sr. V.P.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 80,307

F3 · security: Represents shares withheld by Clearwater Paper Corporation to satisfy tax withholding requirements due at settlement of the 2023 grant of restricted stock units that vested March 15, 2026.

SEC source: 0001754874-26-000005 · wk-form4_1773781396.xml · nonDerivative · entry 2

Bowden Steve M · CIK 0001754874 · Sr. V.P.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 80,757

F2 · security: Represents shares withheld by Clearwater Paper Corporation to satisfy tax withholding requirements due at settlement of the 2024 grant of restricted stock units that vested March 15, 2026.

SEC source: 0001754874-26-000005 · wk-form4_1773781396.xml · nonDerivative · entry 1

Bowden Steve M · CIK 0001754874 · Sr. V.P.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 81,254

F1 · security: Represents shares withheld by Clearwater Paper Corporation to satisfy tax withholding requirements due at settlement of the 2025 grant of restricted stock units that vested March 15, 2026.

SEC source: 0001773142-26-000006 · wk-form4_1773781228.xml · nonDerivative · entry 2

Baker Sherri · CIK 0001773142 · SVP, CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 45,481

F2 · security: Represents shares withheld by Clearwater Paper Corporation to satisfy tax withholding requirements due at settlement of the 2024 grant of restricted stock units that vested March 15, 2026.

SEC source: 0001773142-26-000006 · wk-form4_1773781228.xml · nonDerivative · entry 1

Baker Sherri · CIK 0001773142 · SVP, CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 46,005

F1 · security: Represents shares withheld by Clearwater Paper Corporation to satisfy tax withholding requirements due at settlement of the 2025 grant of restricted stock units that vested March 15, 2026.

SEC source: 0002103881-26-000009 · wk-form4_1773781160.xml · nonDerivative · entry 1

Aulin Virginia L. · CIK 0002103881 · Senior Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,919

F1 · security: Represents shares withheld by Clearwater Paper Corporation to satisfy tax withholding requirements due at settlement of the 2025 grant of restricted stock units that vested March 15, 2026.

SEC source: 0002074750-26-000005 · wk-form4_1772494151.xml · nonDerivative · entry 1

Rome Marc D. · CIK 0002074750 · SVP, Gen. Counsel & Corp. Sec.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,748

F1 · security: Represents award of restricted stock units ("RSUs"). RSUs may be settled only for shares of common stock on a one-for-one basis.

F2 · shares: Represents award of RSUs that will vest 33%, 33%, 34% on March 15, 2027, 2028 and 2029, respectively, assuming continued employment. During the vesting period, an amount equal to the dividends that would have been paid on the RSUs had they been in the form of common stock will be converted into additional RSUs.

SEC source: 0002049395-26-000003 · wk-form4_1772494121.xml · nonDerivative · entry 1

Passarello Mathew D · CIK 0002049395 · Sr. V.P.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 26,783

F1 · security: Represents award of restricted stock units ("RSUs"). RSUs may be settled only for shares of common stock on a one-for-one basis.

F2 · shares: Represents award of RSUs that will vest 33%, 33%, 34% on March 15, 2027, 2028 and 2029, respectively, assuming continued employment. During the vesting period, an amount equal to the dividends that would have been paid on the RSUs had they been in the form of common stock will be converted into additional RSUs.

SEC source: 0001725657-26-000003 · wk-form4_1772494058.xml · nonDerivative · entry 1

Kitch Arsen S. · CIK 0001725657 · President, CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 407,398

F1 · security: Represents award of restricted stock units ("RSUs"). RSUs may be settled only for shares of common stock on a one-for-one basis.

F2 · shares: Represents award of RSUs that will vest 33%, 33%, 34% on March 15, 2027, 2028 and 2029, respectively, assuming continued employment. During the vesting period, an amount equal to the dividends that would have been paid on the RSUs had they been in the form of common stock will be converted into additional RSUs.

SEC source: 0002103766-26-000005 · wk-form4_1772494093.xml · nonDerivative · entry 1

Krajnik Sean M. · CIK 0002103766 · Senior Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 26,223

F1 · security: Represents award of restricted stock units ("RSUs"). RSUs may be settled only for shares of common stock on a one-for-one basis.

F2 · shares: Represents award of RSUs that will vest 33%, 33%, 34% on March 15, 2027, 2028 and 2029, respectively, assuming continued employment. During the vesting period, an amount equal to the dividends that would have been paid on the RSUs had they been in the form of common stock will be converted into additional RSUs.

SEC source: 0001754874-26-000003 · wk-form4_1772494029.xml · nonDerivative · entry 1

Bowden Steve M · CIK 0001754874 · Sr. V.P.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 81,794

F1 · security: Represents award of restricted stock units ("RSUs"). RSUs may be settled only for shares of common stock on a one-for-one basis.

F2 · shares: Represents award of RSUs that will vest 33%, 33%, 34% on March 15, 2027, 2028 and 2029, respectively, assuming continued employment. During the vesting period, an amount equal to the dividends that would have been paid on the RSUs had they been in the form of common stock will be converted into additional RSUs.

SEC source: 0001504337-26-000003 · wk-form4_1772493999.xml · nonDerivative · entry 1

Barckley Rebecca Anne · CIK 0001504337 · VP, Controller

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,646

F1 · security: Represents award of restricted stock units ("RSUs"). RSUs may be settled only for shares of common stock on a one-for-one basis.

F2 · shares: Represents award of RSUs that will vest 33%, 33%, 34% on March 15, 2027, 2028 and 2029, respectively, assuming continued employment. During the vesting period, an amount equal to the dividends that would have been paid on the RSUs had they been in the form of common stock will be converted into additional RSUs.

SEC source: 0001773142-26-000003 · wk-form4_1772493968.xml · nonDerivative · entry 1

Baker Sherri · CIK 0001773142 · SVP, CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 46,574

F1 · security: Represents award of restricted stock units ("RSUs"). RSUs may be settled only for shares of common stock on a one-for-one basis.

F2 · shares: Represents award of RSUs that will vest 33%, 33%, 34% on March 15, 2027, 2028 and 2029, respectively, assuming continued employment. During the vesting period, an amount equal to the dividends that would have been paid on the RSUs had they been in the form of common stock will be converted into additional RSUs.

SEC source: 0002103881-26-000006 · wk-form4_1772493938.xml · nonDerivative · entry 1

Aulin Virginia L. · CIK 0002103881 · Senior Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,300

F1 · security: Represents award of restricted stock units ("RSUs"). RSUs may be settled only for shares of common stock on a one-for-one basis.

F2 · shares: Represents award of RSUs that will vest 33%, 33%, 34% on March 15, 2027, 2028 and 2029, respectively, assuming continued employment. During the vesting period, an amount equal to the dividends that would have been paid on the RSUs had they been in the form of common stock will be converted into additional RSUs.

SEC source: 0002074750-26-000002 · wk-form4_1768945713.xml · nonDerivative · entry 1

Rome Marc D. · CIK 0002074750 · SVP, Gen. Counsel & Corp. Sec.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,326

F1 · security: Represents shares withheld by Clearwater Paper Corporation to satisfy tax withholding requirements due at settlement of the 2024 grant of restricted stock units that vested January 15, 2026.

SEC source: 0001356114-26-000003 · wk-form4_1767652704.xml · derivative · entry 1

HILLMAN JEANNE M · CIK 0001356114 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,946.742

Underlying: Common Stock · 1,384.181 shares

Expires 2031-01-01

F1 · security: Phantom stock units are credited to the reporting person's account on the transaction date in accordance with the provisions of the Clearwater Paper Corporation Deferred Compensation Plan for Directors and will be converted to cash and paid on a 1-for-1 basis with the issuer's common stock.

F2 · derivative.exercise_date: Phantom stock units will be converted to cash and paid on the date previously elected by the reporting person in accordance with the provisions of the Clearwater Paper Corporation Deferred Compensation Plan for Directors.

F2 · derivative.expiration_date: Phantom stock units will be converted to cash and paid on the date previously elected by the reporting person in accordance with the provisions of the Clearwater Paper Corporation Deferred Compensation Plan for Directors.

F3 · derivative.underlying_shares: Phantom stock unit beneficial ownership represents phantom stock allocated to the reporting person's Deferred Compensation Account since the reporting person's last report. These phantom stock allocations represent deferred quarterly retainer meeting fees.

SEC source: 0001754874-25-000004 · wk-form4_1764712423.xml · nonDerivative · entry 1

Bowden Steve M · CIK 0001754874 · Sr. V.P.

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 68,516

F1 · security: This transaction was executed pursuant to a sale in accordance with a 10b5-1 Trading Plan for taxes.

F2 · price: This price represents the weighted average purchase price for multiple transactions reported on this line. The price of the transactions reported on this line range between $18.10 to $18.29 per share. Upon request by the Commission staff, the issuer or a security holder of the issuer, the reporting person will undertake to provide full information regarding the number of shares purchased at each separate price within the range.

SEC source: 0001356114-25-000007 · wk-form4_1759504891.xml · derivative · entry 1

HILLMAN JEANNE M · CIK 0001356114 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,562.561

Underlying: Common Stock · 1,197.458 shares

Expires 2031-01-01

F1 · security: Phantom stock units are credited to the reporting person's account on the transaction date in accordance with the provisions of the Clearwater Paper Corporation Deferred Compensation Plan for Directors and will be converted to cash and paid on a 1-for-1 basis with the issuer's common stock.

F2 · derivative.exercise_date: Phantom stock units will be converted to cash and paid on the date previously elected by the reporting person in accordance with the provisions of the Clearwater Paper Corporation Deferred Compensation Plan for Directors.

F2 · derivative.expiration_date: Phantom stock units will be converted to cash and paid on the date previously elected by the reporting person in accordance with the provisions of the Clearwater Paper Corporation Deferred Compensation Plan for Directors.

F3 · derivative.underlying_shares: Phantom stock unit beneficial ownership represents phantom stock allocated to the reporting person's Deferred Compensation Account since the reporting person's last report. These phantom stock allocations represent deferred quarterly retainer meeting fees.

SEC source: 0002008545-25-000043 · wk-form4_1751576266.xml · nonDerivative · entry 1

Rome Marc D. · CIK 0002074750 · SVP, Gen. Counsel & Corp. Sec.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,407

F1 · security: Represents award of restricted stock units ("RSUs"). RSUs may be settled only for shares of common stock on a one-for-one basis.

F2 · shares: Represents award of RSUs that will vest 33%, 33%, 34% on July 1, 2026, 2027 and 2028, respectively, assuming continued employment. During the vesting period, an amount equal to the dividends that would have been paid on the RSUs had they been in the form of common stock will be converted into additional RSUs.

SEC source: 0002008545-25-000044 · wk-form4_1751576401.xml · derivative · entry 1

HILLMAN JEANNE M · CIK 0001356114 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,365.103

Underlying: Common Stock · 847.751 shares

Expires 2031-01-01

F1 · security: Phantom stock units are credited to the reporting person's account on the transaction date in accordance with the provisions of the Clearwater Paper Corporation Deferred Compensation Plan for Directors and will be converted to cash and paid on a 1-for-1 basis with the issuer's common stock.

F2 · derivative.exercise_date: Phantom stock units will be converted to cash and paid on the date previously elected by the reporting person in accordance with the provisions of the Clearwater Paper Corporation Deferred Compensation Plan for Directors.

F2 · derivative.expiration_date: Phantom stock units will be converted to cash and paid on the date previously elected by the reporting person in accordance with the provisions of the Clearwater Paper Corporation Deferred Compensation Plan for Directors.

F3 · derivative.underlying_shares: Phantom stock unit beneficial ownership represents phantom stock allocated to the reporting person's Deferred Compensation Account since the reporting person's last report. These phantom stock allocations represent deferred quarterly retainer meeting fees.

SEC source: 0002008545-25-000041 · wk-form4_1747691691.xml · nonDerivative · entry 1

Passarello Mathew D · CIK 0002049395 · Sr. V.P.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,361

F1 · security: Represents shares withheld by Clearwater Paper Corporation to satisfy tax withholding requirements due at settlement of the 2024 grant of restricted stock units that vested March 15, 2025.

SEC source: 0002011383-25-000012 · wk-form4_1747170768.xml · derivative · entry 1

Nelson Ann C · CIK 0001811413 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 22,202.005

Underlying: Common Stock · 4,743.083 shares

Expires not disclosed

F1 · security: Phantom stock units are credited to the reporting person's account on the transaction date in accordance with the provisions of the Clearwater Paper Corporation Deferred Compensation Plan for Directors and will be converted to cash and paid on a 1-for-1 basis with the issuer's common stock.

F2 · derivative.exercise_date: Phantom stock units will be converted to cash and paid upon the reporting person's termination from service with Clearwater Paper in accordance with the provisions of the Clearwater Paper Corporation Deferred Compensation Plan for Directors.

F2 · derivative.expiration_date: Phantom stock units will be converted to cash and paid upon the reporting person's termination from service with Clearwater Paper in accordance with the provisions of the Clearwater Paper Corporation Deferred Compensation Plan for Directors.

F3 · derivative.underlying_shares: Phantom stock unit beneficial ownership represents phantom stock allocated to the reporting person's Deferred Compensation Account since the reporting person's last report. These phantom stock allocations represent an annual award grant for service from May 1, 2025 through April 30, 2026. These phantom stock units will vest May 1, 2026.

SEC source: 0002011383-25-000009 · wk-form4_1747170736.xml · derivative · entry 1

Vickers Tucker Christine M. · CIK 0001860724 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,148.499

Underlying: Common Stock · 4,743.083 shares

Expires not disclosed

F1 · security: Phantom stock units are credited to the reporting person's account on the transaction date in accordance with the provisions of the Clearwater Paper Corporation Deferred Compensation Plan for Directors and will be converted to cash and paid on a 1-for-1 basis with the issuer's common stock.

F2 · derivative.exercise_date: Phantom stock units will be converted to cash and paid upon the reporting person's termination from service with Clearwater Paper in accordance with the provisions of the Clearwater Paper Corporation Deferred Compensation Plan for Directors.

F2 · derivative.expiration_date: Phantom stock units will be converted to cash and paid upon the reporting person's termination from service with Clearwater Paper in accordance with the provisions of the Clearwater Paper Corporation Deferred Compensation Plan for Directors.

F3 · derivative.underlying_shares: Phantom stock unit beneficial ownership represents phantom stock allocated to the reporting person's Deferred Compensation Account since the reporting person's last report. These phantom stock allocations represent an annual award grant for service from May 1, 2025 through April 30, 2026. These phantom stock units will vest May 1, 2026.