KOP

SEC source: 0001209191-23-002599 · doc4.xml · derivative · entry 4

Apostolou Stephanie L · CIK 0001806249 · General Counsel & Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,336

Underlying: Common Stock · 931 shares

Expires not disclosed

F4 · 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 · derivative.exercise_date: On January 4, 2021, the reporting person was granted performance share units ("PSUs") for which the two-year performance period from January 1, 2021 through December 31, 2022 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.

F5 · derivative.expiration_date: On January 4, 2021, the reporting person was granted performance share units ("PSUs") for which the two-year performance period from January 1, 2021 through December 31, 2022 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: 0001209191-23-002599 · doc4.xml · derivative · entry 3

Apostolou Stephanie L · CIK 0001806249 · General Counsel & Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 74

Underlying: Common Stock · 14 shares

Expires not disclosed

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.

F3 · derivative.exercise_price: These DERs were released in connection with the vesting of RSUs granted on January 4, 2021 and January 4, 2022. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.

F3 · shares: These DERs were released in connection with the vesting of RSUs granted on January 4, 2021 and January 4, 2022. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.

F3 · derivative.exercise_date: These DERs were released in connection with the vesting of RSUs granted on January 4, 2021 and January 4, 2022. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.

F3 · derivative.expiration_date: These DERs were released in connection with the vesting of RSUs granted on January 4, 2021 and January 4, 2022. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.

SEC source: 0001209191-23-002599 · doc4.xml · nonDerivative · entry 2

Apostolou Stephanie L · CIK 0001806249 · General Counsel & Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 29,298.8708

F2 · acquired: Shares surrendered to the issuer by the reporting person as payment for the tax withholding related to the vesting of time-based restricted stock units ("RSUs").

SEC source: 0001209191-23-002599 · doc4.xml · nonDerivative · entry 1

Apostolou Stephanie L · CIK 0001806249 · General Counsel & Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,209.8708

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.

F1 · shares: Represents shares acquired upon release of dividend equivalent rights ("DERs"), as reported in Table II, on a one-for-one basis.

F1 · price: Represents shares acquired upon release of dividend equivalent rights ("DERs"), as reported in Table II, on a one-for-one basis.

SEC source: 0001209191-23-002606 · doc4.xml · derivative · entry 6

Pearce Bradley A · CIK 0001776180 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 81

Underlying: Common Stock · 3 shares

Expires not disclosed

F8 · derivative.exercise_price: The DERs accrued with respect to additional PSUs credited to the reporting person with respect to PSUs granted on January 4, 2021 and January 4, 2022. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.

F8 · derivative.exercise_date: The DERs accrued with respect to additional PSUs credited to the reporting person with respect to PSUs granted on January 4, 2021 and January 4, 2022. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.

F8 · derivative.expiration_date: The DERs accrued with respect to additional PSUs credited to the reporting person with respect to PSUs granted on January 4, 2021 and January 4, 2022. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.

SEC source: 0001209191-23-002606 · doc4.xml · derivative · entry 5

Pearce Bradley A · CIK 0001776180 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 197

Underlying: Common Stock · 197 shares

Expires not disclosed

F5 · 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.

F7 · derivative.exercise_date: On January 4, 2022, the reporting person was granted PSUs for which the one-year performance period from January 1, 2022 through December 31, 2022 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, 2025. If the Company's total shareholder return over the three-year period of January 1, 2022 through December 31, 2024 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.

F7 · derivative.expiration_date: On January 4, 2022, the reporting person was granted PSUs for which the one-year performance period from January 1, 2022 through December 31, 2022 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, 2025. If the Company's total shareholder return over the three-year period of January 1, 2022 through December 31, 2024 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: 0001209191-23-002606 · doc4.xml · derivative · entry 4

Pearce Bradley A · CIK 0001776180 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 794

Underlying: Common Stock · 317 shares

Expires not disclosed

F5 · 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.

F6 · derivative.exercise_date: On January 4, 2021, the reporting person was granted performance share units ("PSUs") for which the two-year performance period from January 1, 2021 through December 31, 2022 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 ("PSUs") for which the two-year performance period from January 1, 2021 through December 31, 2022 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: 0001209191-23-002606 · doc4.xml · derivative · entry 3

Pearce Bradley A · CIK 0001776180 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 78

Underlying: Common Stock · 18 shares

Expires not disclosed

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.

F4 · derivative.exercise_price: These DERs were released in connection with the vesting of RSUs granted on January 4, 2021 and January 4, 2022. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.

F4 · shares: These DERs were released in connection with the vesting of RSUs granted on January 4, 2021 and January 4, 2022. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.

F4 · derivative.exercise_date: These DERs were released in connection with the vesting of RSUs granted on January 4, 2021 and January 4, 2022. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.

F4 · derivative.expiration_date: These DERs were released in connection with the vesting of RSUs granted on January 4, 2021 and January 4, 2022. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.

SEC source: 0001209191-23-002606 · doc4.xml · nonDerivative · entry 2

Pearce Bradley A · CIK 0001776180 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 33,111.7059

F3 · acquired: Shares surrendered to the issuer by the reporting person as payment for the tax withholding related to the vesting of time-based restricted stock units ("RSUs").

SEC source: 0001209191-23-002606 · doc4.xml · nonDerivative · entry 1

Pearce Bradley A · CIK 0001776180 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 34,244.7059

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.

F1 · shares: Represents shares acquired upon release of dividend equivalent rights ("DERs"), as reported in Table II, on a one-for-one basis.

F1 · price: Represents shares acquired upon release of dividend equivalent rights ("DERs"), as reported in Table II, on a one-for-one basis.

F2 · balance_after: Includes 34 shares of Koppers Holdings Inc. common stock acquired pursuant to the Koppers Holdings Inc. Employee Stock Purchase Plan on December 31, 2022. These acquisitions were exempt under both Rule 16b-3(c) and Rule 16b-3(d).

SEC source: 0001209191-23-002612 · doc4.xml · derivative · entry 6

Smith Jimmi Sue · CIK 0001684691 · CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 86

Underlying: Common Stock · 12 shares

Expires not disclosed

F8 · derivative.exercise_price: The DERs accrued with respect to additional PSUs credited to the reporting person with respect to PSUs granted on January 4, 2021 and January 4, 2022. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.

F8 · derivative.exercise_date: The DERs accrued with respect to additional PSUs credited to the reporting person with respect to PSUs granted on January 4, 2021 and January 4, 2022. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.

F8 · derivative.expiration_date: The DERs accrued with respect to additional PSUs credited to the reporting person with respect to PSUs granted on January 4, 2021 and January 4, 2022. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.

SEC source: 0001209191-23-002612 · doc4.xml · derivative · entry 5

Smith Jimmi Sue · CIK 0001684691 · CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 881

Underlying: Common Stock · 881 shares

Expires not disclosed

F5 · 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.

F7 · derivative.exercise_date: On January 4, 2022, the reporting person was granted PSUs for which the one-year performance period from January 1, 2022 through December 31, 2022 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, 2025. If the Company's total shareholder return over the three-year period of January 1, 2022 through December 31, 2024 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.

F7 · derivative.expiration_date: On January 4, 2022, the reporting person was granted PSUs for which the one-year performance period from January 1, 2022 through December 31, 2022 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, 2025. If the Company's total shareholder return over the three-year period of January 1, 2022 through December 31, 2024 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: 0001209191-23-002612 · doc4.xml · derivative · entry 4

Smith Jimmi Sue · CIK 0001684691 · CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,336

Underlying: Common Stock · 931 shares

Expires not disclosed

F5 · 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.

F6 · derivative.exercise_date: On January 4, 2021, the reporting person was granted performance share units ("PSUs") for which the two-year performance period from January 1, 2021 through December 31, 2022 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 ("PSUs") for which the two-year performance period from January 1, 2021 through December 31, 2022 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: 0001209191-23-002612 · doc4.xml · derivative · entry 3

Smith Jimmi Sue · CIK 0001684691 · CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 74

Underlying: Common Stock · 15 shares

Expires not disclosed

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.

F4 · derivative.exercise_price: These DERs were released in connection with the vesting of RSUs granted on January 4, 2021 and January 4, 2022. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.

F4 · shares: These DERs were released in connection with the vesting of RSUs granted on January 4, 2021 and January 4, 2022. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.

F4 · derivative.exercise_date: These DERs were released in connection with the vesting of RSUs granted on January 4, 2021 and January 4, 2022. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.

F4 · derivative.expiration_date: These DERs were released in connection with the vesting of RSUs granted on January 4, 2021 and January 4, 2022. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.

SEC source: 0001209191-23-002612 · doc4.xml · nonDerivative · entry 2

Smith Jimmi Sue · CIK 0001684691 · CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 23,161

F3 · acquired: Shares surrendered to the issuer by the reporting person as payment for the tax withholding related to the vesting of time-based restricted stock units ("RSUs").

SEC source: 0001209191-23-002612 · doc4.xml · nonDerivative · entry 1

Smith Jimmi Sue · CIK 0001684691 · CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 24,172

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.

F1 · shares: Represents shares acquired upon release of dividend equivalent rights ("DERs"), as reported in Table II, on a one-for-one basis.

F1 · price: Represents shares acquired upon release of dividend equivalent rights ("DERs"), as reported in Table II, on a one-for-one basis.

F2 · balance_after: Includes 236 shares of Koppers Holdings Inc. common stock acquired pursuant to the Koppers Holdings Inc. Employee Stock Purchase Plan on December 31, 2022. These acquisitions were exempt under both Rule 16b-3(c) and Rule 16b-3(d).

SEC source: 0001209191-23-002614 · doc4.xml · derivative · entry 6

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 182

Underlying: Common Stock · 36 shares

Expires not disclosed

F7 · derivative.exercise_price: The DERs accrued with respect to additional PSUs credited to the reporting person with respect to PSUs granted on January 4, 2021 and January 4, 2022. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.

F7 · derivative.exercise_date: The DERs accrued with respect to additional PSUs credited to the reporting person with respect to PSUs granted on January 4, 2021 and January 4, 2022. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.

F7 · derivative.expiration_date: The DERs accrued with respect to additional PSUs credited to the reporting person with respect to PSUs granted on January 4, 2021 and January 4, 2022. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.

SEC source: 0001209191-23-002614 · doc4.xml · derivative · entry 5

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,936

Underlying: Common Stock · 1,936 shares

Expires not disclosed

F4 · 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.

F6 · derivative.exercise_date: On January 4, 2022, the reporting person was granted PSUs for which the one-year performance period from January 1, 2022 through December 31, 2022 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, 2025. If the Company's total shareholder return over the three-year period of January 1, 2022 through December 31, 2024 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, 2022, the reporting person was granted PSUs for which the one-year performance period from January 1, 2022 through December 31, 2022 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, 2025. If the Company's total shareholder return over the three-year period of January 1, 2022 through December 31, 2024 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: 0001209191-23-002614 · doc4.xml · derivative · entry 4

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,791

Underlying: Common Stock · 3,106 shares

Expires not disclosed

F4 · 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 · derivative.exercise_date: On January 4, 2021, the reporting person was granted performance share units ("PSUs") for which the two-year performance period from January 1, 2021 through December 31, 2022 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.

F5 · derivative.expiration_date: On January 4, 2021, the reporting person was granted performance share units ("PSUs") for which the two-year performance period from January 1, 2021 through December 31, 2022 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: 0001209191-23-002614 · doc4.xml · derivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 146

Underlying: Common Stock · 26 shares

Expires not disclosed

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.

F3 · derivative.exercise_price: These DERs were released in connection with the vesting of RSUs granted on January 4, 2021 and January 4, 2022. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.

F3 · shares: These DERs were released in connection with the vesting of RSUs granted on January 4, 2021 and January 4, 2022. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.

F3 · derivative.exercise_date: These DERs were released in connection with the vesting of RSUs granted on January 4, 2021 and January 4, 2022. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.

F3 · derivative.expiration_date: These DERs were released in connection with the vesting of RSUs granted on January 4, 2021 and January 4, 2022. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.

SEC source: 0001209191-23-002614 · doc4.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 90,393.191

F2 · acquired: Shares surrendered to the issuer by the reporting person as payment for the tax withholding related to the vesting of time-based restricted stock units ("RSUs").

SEC source: 0001209191-23-002614 · doc4.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 92,150.191

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.

F1 · shares: Represents shares acquired upon release of dividend equivalent rights ("DERs"), as reported in Table II, on a one-for-one basis.

F1 · price: Represents shares acquired upon release of dividend equivalent rights ("DERs"), as reported in Table II, on a one-for-one basis.

SEC source: 0001209191-23-002601 · doc4.xml · derivative · entry 6

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 495

Underlying: Common Stock · 103 shares

Expires not disclosed

F7 · derivative.exercise_price: The DERs accrued with respect to additional PSUs credited to the reporting person with respect to PSUs granted on January 4, 2021 and January 4, 2022. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.

F7 · derivative.exercise_date: The DERs accrued with respect to additional PSUs credited to the reporting person with respect to PSUs granted on January 4, 2021 and January 4, 2022. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.

F7 · derivative.expiration_date: The DERs accrued with respect to additional PSUs credited to the reporting person with respect to PSUs granted on January 4, 2021 and January 4, 2022. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.

SEC source: 0001209191-23-002601 · doc4.xml · derivative · entry 5

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,857

Underlying: Common Stock · 5,857 shares

Expires not disclosed

F4 · 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.

F6 · derivative.exercise_date: On January 4, 2022, the reporting person was granted PSUs for which the one-year performance period from January 1, 2022 through December 31, 2022 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, 2025. If the Company's total shareholder return over the three-year period of January 1, 2022 through December 31, 2024 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, 2022, the reporting person was granted PSUs for which the one-year performance period from January 1, 2022 through December 31, 2022 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, 2025. If the Company's total shareholder return over the three-year period of January 1, 2022 through December 31, 2024 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: 0001209191-23-002601 · doc4.xml · derivative · entry 4

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,205

Underlying: Common Stock · 8,053 shares

Expires not disclosed

F4 · 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 · derivative.exercise_date: On January 4, 2021, the reporting person was granted performance share units ("PSUs") for which the two-year performance period from January 1, 2021 through December 31, 2022 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.

F5 · derivative.expiration_date: On January 4, 2021, the reporting person was granted performance share units ("PSUs") for which the two-year performance period from January 1, 2021 through December 31, 2022 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: 0001209191-23-002601 · doc4.xml · derivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 392

Underlying: Common Stock · 68 shares

Expires not disclosed

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.

F3 · derivative.exercise_price: These DERs were released in connection with the vesting of RSUs granted on January 4, 2021 and January 4, 2022. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.

F3 · shares: These DERs were released in connection with the vesting of RSUs granted on January 4, 2021 and January 4, 2022. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.

F3 · derivative.exercise_date: These DERs were released in connection with the vesting of RSUs granted on January 4, 2021 and January 4, 2022. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.

F3 · derivative.expiration_date: These DERs were released in connection with the vesting of RSUs granted on January 4, 2021 and January 4, 2022. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.

SEC source: 0001209191-23-002601 · doc4.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 308,854.2224

F2 · acquired: Shares surrendered to the issuer by the reporting person as payment for the tax withholding related to the vesting of time-based restricted stock units ("RSUs").

SEC source: 0001209191-23-002601 · doc4.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 313,045.2224

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.

F1 · shares: Represents shares acquired upon release of dividend equivalent rights ("DERs"), as reported in Table II, on a one-for-one basis.

F1 · price: Represents shares acquired upon release of dividend equivalent rights ("DERs"), as reported in Table II, on a one-for-one basis.

SEC source: 0001209191-23-002608 · doc4.xml · derivative · entry 6

Skrovanek Daniel J · CIK 0001915043 · VP, Growth & Innovation

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 68

Underlying: Common Stock · 2 shares

Expires not disclosed

F7 · derivative.exercise_price: The DERs accrued with respect to additional PSUs credited to the reporting person with respect to PSUs granted on January 4, 2021 and January 4, 2022. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.

F7 · derivative.exercise_date: The DERs accrued with respect to additional PSUs credited to the reporting person with respect to PSUs granted on January 4, 2021 and January 4, 2022. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.

F7 · derivative.expiration_date: The DERs accrued with respect to additional PSUs credited to the reporting person with respect to PSUs granted on January 4, 2021 and January 4, 2022. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.

SEC source: 0001209191-23-002608 · doc4.xml · derivative · entry 5

Skrovanek Daniel J · CIK 0001915043 · VP, Growth & Innovation

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 151

Underlying: Common Stock · 151 shares

Expires not disclosed

F4 · 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.

F6 · derivative.exercise_date: On January 4, 2022, the reporting person was granted PSUs for which the one-year performance period from January 1, 2022 through December 31, 2022 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, 2025. If the Company's total shareholder return over the three-year period of January 1, 2022 through December 31, 2024 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, 2022, the reporting person was granted PSUs for which the one-year performance period from January 1, 2022 through December 31, 2022 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, 2025. If the Company's total shareholder return over the three-year period of January 1, 2022 through December 31, 2024 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: 0001209191-23-002608 · doc4.xml · derivative · entry 4

Skrovanek Daniel J · CIK 0001915043 · VP, Growth & Innovation

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 608

Underlying: Common Stock · 243 shares

Expires not disclosed

F4 · 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 · derivative.exercise_date: On January 4, 2021, the reporting person was granted performance share units ("PSUs") for which the two-year performance period from January 1, 2021 through December 31, 2022 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.

F5 · derivative.expiration_date: On January 4, 2021, the reporting person was granted performance share units ("PSUs") for which the two-year performance period from January 1, 2021 through December 31, 2022 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: 0001209191-23-002608 · doc4.xml · derivative · entry 3

Skrovanek Daniel J · CIK 0001915043 · VP, Growth & Innovation

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 66

Underlying: Common Stock · 14 shares

Expires not disclosed

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.

F3 · derivative.exercise_price: These DERs were released in connection with the vesting of RSUs granted on January 4, 2021 and January 4, 2022. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.

F3 · shares: These DERs were released in connection with the vesting of RSUs granted on January 4, 2021 and January 4, 2022. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.

F3 · derivative.exercise_date: These DERs were released in connection with the vesting of RSUs granted on January 4, 2021 and January 4, 2022. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.

F3 · derivative.expiration_date: These DERs were released in connection with the vesting of RSUs granted on January 4, 2021 and January 4, 2022. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.

SEC source: 0001209191-23-002608 · doc4.xml · nonDerivative · entry 2

Skrovanek Daniel J · CIK 0001915043 · VP, Growth & Innovation

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,940.3

F2 · acquired: Shares surrendered to the issuer by the reporting person as payment for the tax withholding related to the vesting of time-based restricted stock units ("RSUs").

SEC source: 0001209191-23-002608 · doc4.xml · nonDerivative · entry 1

Skrovanek Daniel J · CIK 0001915043 · VP, Growth & Innovation

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 31,828.3

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.

F1 · shares: Represents shares acquired upon release of dividend equivalent rights ("DERs"), as reported in Table II, on a one-for-one basis.

F1 · price: Represents shares acquired upon release of dividend equivalent rights ("DERs"), as reported in Table II, on a one-for-one basis.

SEC source: 0001209191-23-002604 · doc4.xml · derivative · entry 6

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 90

Underlying: Common Stock · 9 shares

Expires not disclosed

F8 · derivative.exercise_price: The DERs accrued with respect to additional PSUs credited to the reporting person with respect to PSUs granted on January 4, 2021 and January 4, 2022. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.

F8 · derivative.exercise_date: The DERs accrued with respect to additional PSUs credited to the reporting person with respect to PSUs granted on January 4, 2021 and January 4, 2022. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.

F8 · derivative.expiration_date: The DERs accrued with respect to additional PSUs credited to the reporting person with respect to PSUs granted on January 4, 2021 and January 4, 2022. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.

SEC source: 0001209191-23-002604 · doc4.xml · derivative · entry 5

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 562

Underlying: Common Stock · 562 shares

Expires not disclosed

F5 · 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.

F7 · derivative.exercise_date: On January 4, 2022, the reporting person was granted PSUs for which the one-year performance period from January 1, 2022 through December 31, 2022 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, 2025. If the Company's total shareholder return over the three-year period of January 1, 2022 through December 31, 2024 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.

F7 · derivative.expiration_date: On January 4, 2022, the reporting person was granted PSUs for which the one-year performance period from January 1, 2022 through December 31, 2022 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, 2025. If the Company's total shareholder return over the three-year period of January 1, 2022 through December 31, 2024 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: 0001209191-23-002604 · doc4.xml · derivative · entry 4

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,279

Underlying: Common Stock · 909 shares

Expires not disclosed

F5 · 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.

F6 · derivative.exercise_date: On January 4, 2021, the reporting person was granted performance share units ("PSUs") for which the two-year performance period from January 1, 2021 through December 31, 2022 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 ("PSUs") for which the two-year performance period from January 1, 2021 through December 31, 2022 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: 0001209191-23-002604 · doc4.xml · derivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 81

Underlying: Common Stock · 17 shares

Expires not disclosed

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.

F4 · derivative.exercise_price: These DERs were released in connection with the vesting of RSUs granted on January 4, 2021 and January 4, 2022. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.

F4 · shares: These DERs were released in connection with the vesting of RSUs granted on January 4, 2021 and January 4, 2022. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.

F4 · derivative.exercise_date: These DERs were released in connection with the vesting of RSUs granted on January 4, 2021 and January 4, 2022. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.

F4 · derivative.expiration_date: These DERs were released in connection with the vesting of RSUs granted on January 4, 2021 and January 4, 2022. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.

SEC source: 0001209191-23-002604 · doc4.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 38,621.8633

F3 · acquired: Shares surrendered to the issuer by the reporting person as payment for the tax withholding related to the vesting of time-based restricted stock units ("RSUs").

SEC source: 0001209191-23-002604 · doc4.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 39,737.8633

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.

F1 · shares: Represents shares acquired upon release of dividend equivalent rights ("DERs"), as reported in Table II, on a one-for-one basis.

F1 · price: Represents shares acquired upon release of dividend equivalent rights ("DERs"), as reported in Table II, on a one-for-one basis.

F2 · balance_after: Includes 37 shares of Koppers Holdings Inc. common stock acquired pursuant to the Koppers Holdings Inc. Employee Stock Purchase Plan on December 31, 2022. These acquisitions were exempt under both Rule 16b-3(c) and Rule 16b-3(d).

SEC source: 0001209191-23-002597 · doc4.xml · derivative · entry 6

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 73

Underlying: Common Stock · 13 shares

Expires not disclosed

F7 · derivative.exercise_price: The DERs accrued with respect to additional PSUs credited to the reporting person with respect to PSUs granted on January 4, 2021 and January 4, 2022. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.

F7 · derivative.exercise_date: The DERs accrued with respect to additional PSUs credited to the reporting person with respect to PSUs granted on January 4, 2021 and January 4, 2022. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.

F7 · derivative.expiration_date: The DERs accrued with respect to additional PSUs credited to the reporting person with respect to PSUs granted on January 4, 2021 and January 4, 2022. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.

SEC source: 0001209191-23-002597 · doc4.xml · derivative · entry 5

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 787

Underlying: Common Stock · 787 shares

Expires not disclosed

F4 · 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.

F6 · derivative.exercise_date: On January 4, 2022, the reporting person was granted PSUs for which the one-year performance period from January 1, 2022 through December 31, 2022 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, 2025. If the Company's total shareholder return over the three-year period of January 1, 2022 through December 31, 2024 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, 2022, the reporting person was granted PSUs for which the one-year performance period from January 1, 2022 through December 31, 2022 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, 2025. If the Company's total shareholder return over the three-year period of January 1, 2022 through December 31, 2024 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: 0001209191-23-002597 · doc4.xml · derivative · entry 4

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,165

Underlying: Common Stock · 1,262 shares

Expires not disclosed

F4 · 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 · derivative.exercise_date: On January 4, 2021, the reporting person was granted performance share units ("PSUs") for which the two-year performance period from January 1, 2021 through December 31, 2022 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.

F5 · derivative.expiration_date: On January 4, 2021, the reporting person was granted performance share units ("PSUs") for which the two-year performance period from January 1, 2021 through December 31, 2022 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: 0001209191-23-002597 · doc4.xml · derivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 60

Underlying: Common Stock · 11 shares

Expires not disclosed

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.

F3 · derivative.exercise_price: These DERs were released in connection with the vesting of RSUs granted on January 4, 2021 and January 4, 2022. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.

F3 · shares: These DERs were released in connection with the vesting of RSUs granted on January 4, 2021 and January 4, 2022. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.

F3 · derivative.exercise_date: These DERs were released in connection with the vesting of RSUs granted on January 4, 2021 and January 4, 2022. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.

F3 · derivative.expiration_date: These DERs were released in connection with the vesting of RSUs granted on January 4, 2021 and January 4, 2022. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.

SEC source: 0001209191-23-002597 · doc4.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 52,596.4181

F2 · acquired: Shares surrendered to the issuer by the reporting person as payment for the tax withholding related to the vesting of time-based restricted stock units ("RSUs").

SEC source: 0001209191-23-002597 · doc4.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 53,305.4181

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.

F1 · shares: Represents shares acquired upon release of dividend equivalent rights ("DERs"), as reported in Table II, on a one-for-one basis.

F1 · price: Represents shares acquired upon release of dividend equivalent rights ("DERs"), as reported in Table II, on a one-for-one basis.

SEC source: 0001209191-23-002069 · doc4.xml · nonDerivative · entry 1

Apostolou Stephanie L · CIK 0001806249 · General Counsel & Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,195.8708

F1 · security: The reporting person was awarded time-based restricted stock units on January 4, 2023, which will vest in annual installments of one-third each over three years.

F2 · balance_after: Includes 825 shares of Koppers Holdings Inc. common stock acquired pursuant to the Koppers Holdings Inc. Employee Stock Purchase Plan on March 31, 2022 and June 30, 2022. These acquisitions were exempt under both Rule 16b-3(c) and Rule 16b-3(d).

SEC source: 0001209191-23-002094 · doc4.xml · nonDerivative · entry 1

Pearce Bradley A · CIK 0001776180 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 34,192.7059

F1 · security: The reporting person was awarded time-based restricted stock units on January 4, 2023, which will vest in annual installments of one-third each over three years.

F2 · balance_after: Includes 73 shares of Koppers Holdings Inc. common stock acquired pursuant to the Koppers Holdings Inc. Employee Stock Purchase Plan on June 30, 2022 and September 30, 2022. These acquisitions were exempt under both Rule 16b-3(c) and Rule 16b-3(d).

SEC source: 0001209191-23-002074 · doc4.xml · nonDerivative · entry 1

Smith Jimmi Sue · CIK 0001684691 · CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 23,921

F1 · security: The reporting person was awarded time-based restricted stock units on January 4, 2023, which will vest in annual installments of one-third each over three years.

F2 · balance_after: Includes 719 shares of Koppers Holdings Inc. common stock acquired pursuant to the Koppers Holdings Inc. Employee Stock Purchase Plan on March 31, 2022, June 30, 2022 and September 30, 2022. These acquisitions were exempt under both Rule 16b-3(c) and Rule 16b-3(d).

SEC source: 0001209191-23-002101 · doc4.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 92,124.191

F1 · security: The reporting person was awarded time-based restricted stock units on January 4, 2023, which will vest in annual installments of one-third each over three years.