KOP

SEC source: 0001209191-22-010654 · doc4a.xml · derivative · entry 2

Apostolou Stephanie L · CIK 0001806249 · General Counsel & Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,405

Underlying: Common Stock · 1,405 shares

Expires not disclosed

F1 · derivative.exercise_price: Restricted stock units represent the right to receive shares of common stock on a one-for-one basis and may be settled in cash or in shares of common stock.

F5 · shares: This Form 4 amendment is being filed to correct the number of performance share units awarded to the reporting person for the one-year performance period from January 1, 2021 through December 31, 2021.

F6 · derivative.exercise_date: On January 4, 2021, the reporting person was granted performance share units for which the performance criteria for the one-year performance period from January 1, 2021 through December 31, 2021 have been satisfied. All of the restricted stock units reported here are subject to vesting based on the continued service of the reporting person through January 5, 2024. If the Company's total shareholder return over the three-year period of January 1, 2021 through December 31, 2023 is negative, then the cumulative number of units that may vest for such three-year period will be capped at 150% of the target number.

F6 · derivative.expiration_date: On January 4, 2021, the reporting person was granted performance share units for which the performance criteria for the one-year performance period from January 1, 2021 through December 31, 2021 have been satisfied. All of the restricted stock units reported here are subject to vesting based on the continued service of the reporting person through January 5, 2024. If the Company's total shareholder return over the three-year period of January 1, 2021 through December 31, 2023 is negative, then the cumulative number of units that may vest for such three-year period will be capped at 150% of the target number.

SEC source: 0001209191-22-010654 · doc4a.xml · derivative · entry 1

Apostolou Stephanie L · CIK 0001806249 · General Counsel & Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,514

Underlying: Common Stock · 950 shares

Expires not disclosed

F1 · derivative.exercise_price: Restricted stock units represent the right to receive shares of common stock on a one-for-one basis and may be settled in cash or in shares of common stock.

F2 · shares: This Form 4 amendment is being filed to correct the number of performance share units awarded to the reporting person for the three-year performance period from January 1, 2019 through December 31, 2021.

F3 · derivative.exercise_date: On March 6, 2019, the reporting person was granted performance share units for which the performance criteria for the three-year performance period from January 1, 2019 through December 31, 2021 have been satisfied.

F3 · derivative.expiration_date: On March 6, 2019, the reporting person was granted performance share units for which the performance criteria for the three-year performance period from January 1, 2019 through December 31, 2021 have been satisfied.

F4 · balance_after: All of the restricted stock units reported here are subject to vesting based on the continued service of the reporting person through March 6, 2022.

SEC source: 0001209191-22-010674 · doc4a.xml · derivative · entry 2

Pearce Bradley A · CIK 0001776180 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 477

Underlying: Common Stock · 477 shares

Expires not disclosed

F1 · derivative.exercise_price: Restricted stock units represent the right to receive shares of common stock on a one-for-one basis and may be settled in cash or in shares of common stock.

F5 · shares: This Form 4 amendment is being filed to correct the number of performance share units awarded to the reporting person for the one-year performance period from January 1, 2021 through December 31, 2021.

F6 · derivative.exercise_date: On January 4, 2021, the reporting person was granted performance share units for which the performance criteria for the one-year performance period from January 1, 2021 through December 31, 2021 have been satisfied. All of the restricted stock units reported here are subject to vesting based on the continued service of the reporting person through January 5, 2024. If the Company's total shareholder return over the three-year period of January 1, 2021 through December 31, 2023 is negative, then the cumulative number of units that may vest for such three-year period will be capped at 150% of the target number.

F6 · derivative.expiration_date: On January 4, 2021, the reporting person was granted performance share units for which the performance criteria for the one-year performance period from January 1, 2021 through December 31, 2021 have been satisfied. All of the restricted stock units reported here are subject to vesting based on the continued service of the reporting person through January 5, 2024. If the Company's total shareholder return over the three-year period of January 1, 2021 through December 31, 2023 is negative, then the cumulative number of units that may vest for such three-year period will be capped at 150% of the target number.

SEC source: 0001209191-22-010674 · doc4a.xml · derivative · entry 1

Pearce Bradley A · CIK 0001776180 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,228

Underlying: Common Stock · 602 shares

Expires not disclosed

F1 · derivative.exercise_price: Restricted stock units represent the right to receive shares of common stock on a one-for-one basis and may be settled in cash or in shares of common stock.

F2 · shares: This Form 4 amendment is being filed to correct the number of performance share units awarded to the reporting person for the three-year performance period from January 1, 2019 through December 31, 2021.

F3 · derivative.exercise_date: On March 6, 2019, the reporting person was granted performance share units for which the performance criteria for the three-year performance period from January 1, 2019 through December 31, 2021 have been satisfied.

F3 · derivative.expiration_date: On March 6, 2019, the reporting person was granted performance share units for which the performance criteria for the three-year performance period from January 1, 2019 through December 31, 2021 have been satisfied.

F4 · balance_after: All of the restricted stock units reported here are subject to vesting based on the continued service of the reporting person through March 6, 2022, provided, however, in the event the reporting person undergoes eligible retirement prior to such date, then all units shall vest.

SEC source: 0001209191-22-010677 · doc4a.xml · derivative · entry 1

Smith Jimmi Sue · CIK 0001684691 · CFO and Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,405

Underlying: Common Stock · 1,405 shares

Expires not disclosed

F1 · derivative.exercise_price: Restricted stock units represent the right to receive shares of common stock on a one-for-one basis and may be settled in cash or in shares of common stock.

F2 · shares: This Form 4 amendment is being filed to correct the number of performance share units awarded to the reporting person for the one-year performance period from January 1, 2021 through December 31, 2021.

F3 · derivative.exercise_date: On January 4, 2021, the reporting person was granted performance share units for which the performance criteria for the one-year performance period from January 1, 2021 through December 31, 2021 have been satisfied. All of the restricted stock units reported here are subject to vesting based on the continued service of the reporting person through January 5, 2024. If the Company's total shareholder return over the three-year period of January 1, 2021 through December 31, 2023 is negative, then the cumulative number of units that may vest for such three-year period will be capped at 150% of the target number.

F3 · derivative.expiration_date: On January 4, 2021, the reporting person was granted performance share units for which the performance criteria for the one-year performance period from January 1, 2021 through December 31, 2021 have been satisfied. All of the restricted stock units reported here are subject to vesting based on the continued service of the reporting person through January 5, 2024. If the Company's total shareholder return over the three-year period of January 1, 2021 through December 31, 2023 is negative, then the cumulative number of units that may vest for such three-year period will be capped at 150% of the target number.

SEC source: 0001209191-22-010668 · doc4a.xml · derivative · entry 2

GROVES DANIEL R · CIK 0001520797 · VP, Culture & Engagement

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,405

Underlying: Common Stock · 1,405 shares

Expires not disclosed

F1 · derivative.exercise_price: Restricted stock units represent the right to receive shares of common stock on a one-for-one basis and may be settled in cash or in shares of common stock.

F5 · shares: This Form 4 amendment is being filed to correct the number of performance share units awarded to the reporting person for the one-year performance period from January 1, 2021 through December 31, 2021.

F6 · derivative.exercise_date: On January 4, 2021, the reporting person was granted performance share units for which the performance criteria for the one-year performance period from January 1, 2021 through December 31, 2021 have been satisfied. All of the restricted stock units reported here are subject to vesting based on the continued service of the reporting person through January 5, 2024. If the Company's total shareholder return over the three-year period of January 1, 2021 through December 31, 2023 is negative, then the cumulative number of units that may vest for such three-year period will be capped at 150% of the target number.

F6 · derivative.expiration_date: On January 4, 2021, the reporting person was granted performance share units for which the performance criteria for the one-year performance period from January 1, 2021 through December 31, 2021 have been satisfied. All of the restricted stock units reported here are subject to vesting based on the continued service of the reporting person through January 5, 2024. If the Company's total shareholder return over the three-year period of January 1, 2021 through December 31, 2023 is negative, then the cumulative number of units that may vest for such three-year period will be capped at 150% of the target number.

SEC source: 0001209191-22-010668 · doc4a.xml · derivative · entry 1

GROVES DANIEL R · CIK 0001520797 · VP, Culture & Engagement

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,538

Underlying: Common Stock · 2,578 shares

Expires not disclosed

F1 · derivative.exercise_price: Restricted stock units represent the right to receive shares of common stock on a one-for-one basis and may be settled in cash or in shares of common stock.

F2 · shares: This Form 4 amendment is being filed to correct the number of performance share units awarded to the reporting person for the three-year performance period from January 1, 2019 through December 31, 2021.

F3 · derivative.exercise_date: On March 6, 2019, the reporting person was granted performance share units for which the performance criteria for the three-year performance period from January 1, 2019 through December 31, 2021 have been satisfied.

F3 · derivative.expiration_date: On March 6, 2019, the reporting person was granted performance share units for which the performance criteria for the three-year performance period from January 1, 2019 through December 31, 2021 have been satisfied.

F4 · balance_after: All of the restricted stock units reported here are subject to vesting based on the continued service of the reporting person through March 6, 2022, provided, however, in the event the reporting person undergoes eligible retirement prior to such date, then all units shall vest.

SEC source: 0001209191-22-010679 · doc4a.xml · derivative · entry 2

Sullivan James A. · CIK 0001450800 · EVP, Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,685

Underlying: Common Stock · 4,685 shares

Expires not disclosed

F1 · derivative.exercise_price: Restricted stock units represent the right to receive shares of common stock on a one-for-one basis and may be settled in cash or in shares of common stock.

F5 · shares: This Form 4 amendment is being filed to correct the number of performance share units awarded to the reporting person for the one-year performance period from January 1, 2021 through December 31, 2021.

F6 · derivative.exercise_date: On January 4, 2021, the reporting person was granted performance share units for which the performance criteria for the one-year performance period from January 1, 2021 through December 31, 2021 have been satisfied. All of the restricted stock units reported here are subject to vesting based on the continued service of the reporting person through January 5, 2024. If the Company's total shareholder return over the three-year period of January 1, 2021 through December 31, 2023 is negative, then the cumulative number of units that may vest for such three-year period will be capped at 150% of the target number.

F6 · derivative.expiration_date: On January 4, 2021, the reporting person was granted performance share units for which the performance criteria for the one-year performance period from January 1, 2021 through December 31, 2021 have been satisfied. All of the restricted stock units reported here are subject to vesting based on the continued service of the reporting person through January 5, 2024. If the Company's total shareholder return over the three-year period of January 1, 2021 through December 31, 2023 is negative, then the cumulative number of units that may vest for such three-year period will be capped at 150% of the target number.

SEC source: 0001209191-22-010679 · doc4a.xml · derivative · entry 1

Sullivan James A. · CIK 0001450800 · EVP, Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,581

Underlying: Common Stock · 5,561 shares

Expires not disclosed

F1 · derivative.exercise_price: Restricted stock units represent the right to receive shares of common stock on a one-for-one basis and may be settled in cash or in shares of common stock.

F2 · shares: This Form 4 amendment is being filed to correct the number of performance share units awarded to the reporting person for the three-year performance period from January 1, 2019 through December 31, 2021.

F3 · derivative.exercise_date: On March 6, 2019, the reporting person was granted performance share units for which the performance criteria for the three-year performance period from January 1, 2019 through December 31, 2021 have been satisfied.

F3 · derivative.expiration_date: On March 6, 2019, the reporting person was granted performance share units for which the performance criteria for the three-year performance period from January 1, 2019 through December 31, 2021 have been satisfied.

F4 · balance_after: All of the restricted stock units reported here are subject to vesting based on the continued service of the reporting person through March 6, 2022.

SEC source: 0001209191-22-010659 · doc4a.xml · derivative · entry 2

BALL M LEROY · CIK 0001229771 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,152

Underlying: Common Stock · 12,152 shares

Expires not disclosed

F1 · derivative.exercise_price: Restricted stock units represent the right to receive shares of common stock on a one-for-one basis and may be settled in cash or in shares of common stock.

F5 · shares: This Form 4 amendment is being filed to correct the number of performance share units awarded to the reporting person for the one-year performance period from January 1, 2021 through December 31, 2021.

F6 · derivative.exercise_date: On January 4, 2021, the reporting person was granted performance share units for which the performance criteria for the one-year performance period from January 1, 2021 through December 31, 2021 have been satisfied. All of the restricted stock units reported here are subject to vesting based on the continued service of the reporting person through January 5, 2024. If the Company's total shareholder return over the three-year period of January 1, 2021 through December 31, 2023 is negative, then the cumulative number of units that may vest for such three-year period will be capped at 150% of the target number.

F6 · derivative.expiration_date: On January 4, 2021, the reporting person was granted performance share units for which the performance criteria for the one-year performance period from January 1, 2021 through December 31, 2021 have been satisfied. All of the restricted stock units reported here are subject to vesting based on the continued service of the reporting person through January 5, 2024. If the Company's total shareholder return over the three-year period of January 1, 2021 through December 31, 2023 is negative, then the cumulative number of units that may vest for such three-year period will be capped at 150% of the target number.

SEC source: 0001209191-22-010659 · doc4a.xml · derivative · entry 1

BALL M LEROY · CIK 0001229771 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 79,187

Underlying: Common Stock · 21,397 shares

Expires not disclosed

F1 · derivative.exercise_price: Restricted stock units represent the right to receive shares of common stock on a one-for-one basis and may be settled in cash or in shares of common stock.

F2 · shares: This Form 4 amendment is being filed to correct the number of performance share units awarded to the reporting person for the three-year performance period from January 1, 2019 through December 31, 2021.

F3 · derivative.exercise_date: On March 6, 2019, the reporting person was granted performance share units for which the performance criteria for the three-year performance period from January 1, 2019 through December 31, 2021 have been satisfied.

F3 · derivative.expiration_date: On March 6, 2019, the reporting person was granted performance share units for which the performance criteria for the three-year performance period from January 1, 2019 through December 31, 2021 have been satisfied.

F4 · balance_after: All of the restricted stock units reported here are subject to vesting based on the continued service of the reporting person through March 6, 2022.

SEC source: 0001209191-22-010671 · doc4a.xml · derivative · entry 2

Hyde Leslie S · CIK 0001349675 · SVP, Chief Sustainability Offi

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,903

Underlying: Common Stock · 1,903 shares

Expires not disclosed

F1 · derivative.exercise_price: Restricted stock units represent the right to receive shares of common stock on a one-for-one basis and may be settled in cash or in shares of common stock.

F5 · shares: This Form 4 amendment is being filed to correct the number of performance share units awarded to the reporting person for the one-year performance period from January 1, 2021 through December 31, 2021.

F6 · derivative.exercise_date: On January 4, 2021, the reporting person was granted performance share units for which the performance criteria for the one-year performance period from January 1, 2021 through December 31, 2021 have been satisfied. All of the restricted stock units reported here are subject to vesting based on the continued service of the reporting person through January 5, 2024. If the Company's total shareholder return over the three-year period of January 1, 2021 through December 31, 2023 is negative, then the cumulative number of units that may vest for such three-year period will be capped at 150% of the target number.

F6 · derivative.expiration_date: On January 4, 2021, the reporting person was granted performance share units for which the performance criteria for the one-year performance period from January 1, 2021 through December 31, 2021 have been satisfied. All of the restricted stock units reported here are subject to vesting based on the continued service of the reporting person through January 5, 2024. If the Company's total shareholder return over the three-year period of January 1, 2021 through December 31, 2023 is negative, then the cumulative number of units that may vest for such three-year period will be capped at 150% of the target number.

SEC source: 0001209191-22-010671 · doc4a.xml · derivative · entry 1

Hyde Leslie S · CIK 0001349675 · SVP, Chief Sustainability Offi

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,305

Underlying: Common Stock · 2,785 shares

Expires not disclosed

F1 · derivative.exercise_price: Restricted stock units represent the right to receive shares of common stock on a one-for-one basis and may be settled in cash or in shares of common stock.

F2 · shares: This Form 4 amendment is being filed to correct the number of performance share units awarded to the reporting person for the three-year performance period from January 1, 2019 through December 31, 2021.

F3 · derivative.exercise_date: On March 6, 2019, the reporting person was granted performance share units for which the performance criteria for the three-year performance period from January 1, 2019 through December 31, 2021 have been satisfied.

F3 · derivative.expiration_date: On March 6, 2019, the reporting person was granted performance share units for which the performance criteria for the three-year performance period from January 1, 2019 through December 31, 2021 have been satisfied.

F4 · balance_after: All of the restricted stock units reported here are subject to vesting based on the continued service of the reporting person through March 6, 2022, provided, however, in the event the reporting person undergoes eligible retirement prior to such date, then all units shall vest.

SEC source: 0001209191-22-010664 · doc4a.xml · derivative · entry 2

Dowd Joseph P · CIK 0001553647 · Global VP, Zero Harm

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,370

Underlying: Common Stock · 1,370 shares

Expires not disclosed

F1 · derivative.exercise_price: Restricted stock units represent the right to receive shares of common stock on a one-for-one basis and may be settled in cash or in shares of common stock.

F5 · shares: This Form 4 amendment is being filed to correct the number of performance share units awarded to the reporting person for the one-year performance period from January 1, 2021 through December 31, 2021.

F6 · derivative.exercise_date: On January 4, 2021, the reporting person was granted performance share units for which the performance criteria for the one-year performance period from January 1, 2021 through December 31, 2021 have been satisfied. All of the restricted stock units reported here are subject to vesting based on the continued service of the reporting person through January 5, 2024. If the Company's total shareholder return over the three-year period of January 1, 2021 through December 31, 2023 is negative, then the cumulative number of units that may vest for such three-year period will be capped at 150% of the target number.

F6 · derivative.expiration_date: On January 4, 2021, the reporting person was granted performance share units for which the performance criteria for the one-year performance period from January 1, 2021 through December 31, 2021 have been satisfied. All of the restricted stock units reported here are subject to vesting based on the continued service of the reporting person through January 5, 2024. If the Company's total shareholder return over the three-year period of January 1, 2021 through December 31, 2023 is negative, then the cumulative number of units that may vest for such three-year period will be capped at 150% of the target number.

SEC source: 0001209191-22-010664 · doc4a.xml · derivative · entry 1

Dowd Joseph P · CIK 0001553647 · Global VP, Zero Harm

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,745

Underlying: Common Stock · 2,633 shares

Expires not disclosed

F1 · derivative.exercise_price: Restricted stock units represent the right to receive shares of common stock on a one-for-one basis and may be settled in cash or in shares of common stock.

F2 · shares: This Form 4 amendment is being filed to correct the number of performance share units awarded to the reporting person for the three-year performance period from January 1, 2019 through December 31, 2021.

F3 · derivative.exercise_date: On March 6, 2019, the reporting person was granted performance share units for which the performance criteria for the three-year performance period from January 1, 2019 through December 31, 2021 have been satisfied.

F3 · derivative.expiration_date: On March 6, 2019, the reporting person was granted performance share units for which the performance criteria for the three-year performance period from January 1, 2019 through December 31, 2021 have been satisfied.

F4 · balance_after: All of the restricted stock units reported here are subject to vesting based on the continued service of the reporting person through March 6, 2022.

SEC source: 0001209191-22-002113 · doc4.xml · derivative · entry 2

Apostolou Stephanie L · CIK 0001806249 · General Counsel & Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,868

Underlying: Common Stock · 5,868 shares

Expires 2032-01-04

F3 · derivative.exercise_date: The reporting person was granted stock options on January 4, 2022, which will vest in annual installments of 25 percent over four years.

SEC source: 0001209191-22-002113 · doc4.xml · nonDerivative · entry 1

Apostolou Stephanie L · CIK 0001806249 · General Counsel & Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,547.8708

F1 · security: The reporting person was awarded time-based restricted stock units on January 4, 2022, which will vest in annual installments of 25 percent over four years.

F2 · balance_after: Includes 736 shares of Koppers Holdings Inc. common stock acquired pursuant to the Koppers Holdings Inc. Employee Stock Purchase Plan on June 30, 2021 and September 30, 2021. These acquisitions were exempt under both Rule 16b-3(c) and Rule 16b-3(d).

SEC source: 0001209191-22-002126 · doc4.xml · nonDerivative · entry 1

Pearce Bradley A · CIK 0001776180 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,918.7059

F1 · security: The reporting person was awarded time-based restricted stock units on January 4, 2022, which will vest in annual installments of 25 percent over four years.

SEC source: 0001209191-22-002129 · doc4.xml · derivative · entry 2

Smith Jimmi Sue · CIK 0001684691 · CFO and Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,664

Underlying: Common Stock · 6,664 shares

Expires 2032-01-04

F2 · derivative.exercise_date: The reporting person was granted stock options on January 4, 2022, which will vest in annual installments of 25 percent over four years.

SEC source: 0001209191-22-002129 · doc4.xml · nonDerivative · entry 1

Smith Jimmi Sue · CIK 0001684691 · CFO and Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,855

F1 · security: The reporting person was awarded time-based restricted stock units on January 4, 2022, which will vest in annual installments of 25 percent over four years.

SEC source: 0001209191-22-002131 · doc4.xml · derivative · entry 2

Sullivan James A. · CIK 0001450800 · EVP, Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,648

Underlying: Common Stock · 14,648 shares

Expires 2032-01-04

F2 · derivative.exercise_date: The reporting person was granted stock options on January 4, 2022, which will vest in annual installments of 25 percent over four years.

SEC source: 0001209191-22-002131 · doc4.xml · nonDerivative · entry 1

Sullivan James A. · CIK 0001450800 · EVP, Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 66,274.191

F1 · security: The reporting person was awarded time-based restricted stock units on January 4, 2022, which will vest in annual installments of 25 percent over four years.

SEC source: 0001209191-22-002117 · doc4.xml · derivative · entry 2

BALL M LEROY · CIK 0001229771 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 53,180

Underlying: Common Stock · 53,180 shares

Expires 2032-01-04

F3 · derivative.exercise_date: The reporting person was granted stock options on January 4, 2022, which will vest in annual installments of 25 percent over four years.

SEC source: 0001209191-22-002117 · doc4.xml · nonDerivative · entry 1

BALL M LEROY · CIK 0001229771 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 258,181.2224

F1 · security: The reporting person was awarded time-based restricted stock units on January 4, 2022, which will vest in annual installments of 25 percent over four years.

F2 · balance_after: Includes 741 shares of Koppers Holdings Inc. common stock acquired pursuant to the Koppers Holdings Inc. Employee Stock Purchase Plan on June 30, 2021 and September 30, 2021. These acquisitions were exempt under both Rule 16b-3(c) and Rule 16b-3(d).

SEC source: 0001209191-22-002123 · doc4.xml · derivative · entry 2

Hyde Leslie S · CIK 0001349675 · SVP, Chief Sustainability Offi

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,952

Underlying: Common Stock · 5,952 shares

Expires 2032-01-04

F2 · derivative.exercise_date: The reporting person was granted stock options on January 4, 2022, which will vest in annual installments of 25 percent over four years.

SEC source: 0001209191-22-002123 · doc4.xml · nonDerivative · entry 1

Hyde Leslie S · CIK 0001349675 · SVP, Chief Sustainability Offi

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 42,787.4181

F1 · security: The reporting person was awarded time-based restricted stock units on January 4, 2022, which will vest in annual installments of 25 percent over four years.

SEC source: 0001209191-22-002121 · doc4.xml · nonDerivative · entry 1

Dowd Joseph P · CIK 0001553647 · Global VP, Zero Harm

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 36,913.8633

F1 · security: The reporting person was awarded time-based restricted stock units on January 4, 2022, which will vest in annual installments of 25 percent over four years.

F2 · balance_after: Includes 578 shares of Koppers Holdings Inc. common stock acquired pursuant to the Koppers Holdings Inc. Employee Stock Purchase Plan on March 31, 2021, June 30, 2021 and September 30, 2021. These acquisitions were exempt under both Rule 16b-3(c) and Rule 16b-3(d).

SEC source: 0001209191-22-000403 · doc4.xml · nonDerivative · entry 2

ZUGAY MICHAEL · CIK 0001260399 · CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 64,689

F3 · kind: This reported disposition involved a forfeiture of restricted stock units in connection with the retirement of the reporting person.

SEC source: 0001209191-22-000403 · doc4.xml · nonDerivative · entry 1

ZUGAY MICHAEL · CIK 0001260399 · CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 68,635

F1 · acquired: Shares surrendered to the issuer by the reporting person as payment for tax withholding related to the vesting of time-based restricted stock units.

F2 · balance_after: Includes 659 shares of Koppers Holdings Inc. common stock acquired pursuant to the Koppers Holdings Inc. Employee Stock Purchase Plan on June 30, 2021 and September 30, 2021. These acquisitions were exempt under both Rule 16b-3(c) and Rule 16b-3(d).

SEC source: 0001209191-22-004843 · doc5.xml · nonDerivative · entry 4

BALL M LEROY · CIK 0001229771 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 251,626.2224

SEC source: 0001209191-21-033445 · doc4.xml · derivative · entry 5

GROVES DANIEL R · CIK 0001520797 · VP, Culture & Engagement

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,105

Underlying: Common Stock · 2,854 shares

Expires 2026-03-01

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: Stock options vested in annual installments of 25 percent over 4 years.

SEC source: 0001209191-21-033445 · doc4.xml · derivative · entry 4

GROVES DANIEL R · CIK 0001520797 · VP, Culture & Engagement

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 14,357 shares

Expires 2025-03-03

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: Stock options vested in annual installments of 25 percent over 4 years.

SEC source: 0001209191-21-033445 · doc4.xml · nonDerivative · entry 3

GROVES DANIEL R · CIK 0001520797 · VP, Culture & Engagement

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 16,454.8695

F1 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $35.25 to $35.38, inclusive. The reporting person undertakes to provide to the Securities and Exchange Commission, the issuer or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price.

SEC source: 0001209191-21-033445 · doc4.xml · nonDerivative · entry 2

GROVES DANIEL R · CIK 0001520797 · VP, Culture & Engagement

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 33,665.8695

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001209191-21-033445 · doc4.xml · nonDerivative · entry 1

GROVES DANIEL R · CIK 0001520797 · VP, Culture & Engagement

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,811.8695

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001209191-21-032266 · doc4.xml · nonDerivative · entry 1

GROVES DANIEL R · CIK 0001520797 · VP, Culture & Engagement

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 16,454.8695

SEC source: 0001209191-21-030842 · doc4.xml · nonDerivative · entry 1

Feng Xudong · CIK 0001463649 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 35,270

F1 · security: The reporting person was awarded time-based restricted stock units.

SEC source: 0001209191-21-030854 · doc4.xml · nonDerivative · entry 1

Tritch Stephen R · CIK 0001463204 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 41,295

F1 · security: The reporting person was awarded time-based restricted stock units.

SEC source: 0001209191-21-030857 · doc4.xml · nonDerivative · entry 1

WILKERSON SONJA MICHELLE · CIK 0001245155 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,216

F1 · security: The reporting person was awarded time-based restricted stock units.

SEC source: 0001209191-21-030850 · doc4.xml · nonDerivative · entry 1

NEUPAVER ALBERT J · CIK 0001190210 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 69,014

F1 · security: The reporting person was awarded time-based restricted stock units.

SEC source: 0001209191-21-030852 · doc4.xml · nonDerivative · entry 1

TESTONI LOUIS L · CIK 0001576713 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 35,786

F1 · security: The reporting person was awarded time-based restricted stock units.

SEC source: 0001209191-21-030848 · doc4.xml · nonDerivative · entry 1

MOTLEY DAVID L · CIK 0001584601 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,216

F1 · security: The reporting person was awarded time-based restricted stock units.

SEC source: 0001209191-21-030846 · doc4.xml · nonDerivative · entry 1

JENSEN TRACI L · CIK 0001533627 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,216

F1 · security: The reporting person was awarded time-based restricted stock units.

SEC source: 0001209191-22-004843 · doc5.xml · nonDerivative · entry 3

BALL M LEROY · CIK 0001229771 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 252,333.2224

SEC source: 0001209191-22-004843 · doc5.xml · nonDerivative · entry 2

BALL M LEROY · CIK 0001229771 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 253,271.2224

SEC source: 0001209191-22-004843 · doc5.xml · nonDerivative · entry 1

BALL M LEROY · CIK 0001229771 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 255,271.2224

SEC source: 0001209191-21-018948 · doc4.xml · nonDerivative · entry 1

Apostolou Stephanie L · CIK 0001806249 · General Counsel & Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 18,607.8708

F1 · acquired: Shares surrendered to the issuer by the reporting person as payment for tax withholding related to the vesting of time-based restricted stock units.

SEC source: 0001209191-21-018990 · doc4.xml · nonDerivative · entry 1

Pearce Bradley A · CIK 0001776180 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,022.7059

F1 · acquired: Shares surrendered to the issuer by the reporting person as payment for tax withholding related to the vesting of time-based restricted stock units.

SEC source: 0001209191-21-018974 · doc4.xml · nonDerivative · entry 1

GROVES DANIEL R · CIK 0001520797 · VP, Culture & Engagement

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,454.8695

F1 · acquired: Shares surrendered to the issuer by the reporting person as payment for tax withholding related to the vesting of time-based restricted stock units.

SEC source: 0001209191-21-019000 · doc4.xml · nonDerivative · entry 1

Sullivan James A. · CIK 0001450800 · EVP, Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 58,274.191

F1 · acquired: Shares surrendered to the issuer by the reporting person as payment for tax withholding related to the vesting of time-based restricted stock units.