BALL M LEROY

SEC source: 0000950170-24-027388 · ownership.xml · derivative · entry 9

BALL M LEROY · CIK 0001229771 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 51,205

Underlying: Common Stock · 6,103 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.

F4 · derivative.exercise_date: Stock options vested in annual installments of 25 percent over four years.

SEC source: 0000950170-24-027388 · ownership.xml · nonDerivative · entry 7

BALL M LEROY · CIK 0001229771 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 323,080.4007

SEC source: 0000950170-24-027388 · ownership.xml · nonDerivative · entry 6

BALL M LEROY · CIK 0001229771 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 323,180.4007

F3 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $53.00 to $53.94, 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: 0000950170-24-027388 · ownership.xml · nonDerivative · entry 5

BALL M LEROY · CIK 0001229771 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 328,456.4007

F2 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $52.62 to $52.97, 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: 0000950170-24-027388 · ownership.xml · nonDerivative · entry 4

BALL M LEROY · CIK 0001229771 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 329,183.4007

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: 0000950170-24-027388 · ownership.xml · derivative · entry 8

BALL M LEROY · CIK 0001229771 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 57,308

Underlying: Common Stock · 5,000 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.

F4 · derivative.exercise_date: Stock options vested in annual installments of 25 percent over four years.

SEC source: 0000950170-24-027388 · ownership.xml · nonDerivative · entry 3

BALL M LEROY · CIK 0001229771 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 323,080.4007

F1 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $53.00 to $53.95, 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: 0000950170-24-027388 · ownership.xml · nonDerivative · entry 2

BALL M LEROY · CIK 0001229771 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 328,080.4007

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: 0000950170-24-027388 · ownership.xml · nonDerivative · entry 1

BALL M LEROY · CIK 0001229771 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 323,080.4007

SEC source: 0000950170-24-026161 · ownership.xml · derivative · entry 3

BALL M LEROY · CIK 0001229771 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 917

Underlying: Common Stock · 92 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 March 3, 2020. 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 March 3, 2020. 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 March 3, 2020. 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 March 3, 2020. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.

SEC source: 0000950170-24-026161 · ownership.xml · nonDerivative · entry 2

BALL M LEROY · CIK 0001229771 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 324,942.4007

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: 0000950170-24-026161 · ownership.xml · nonDerivative · entry 1

BALL M LEROY · CIK 0001229771 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 327,824.4007

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: 0000950170-24-003150 · ownership.xml · derivative · entry 10

BALL M LEROY · CIK 0001229771 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,009

Underlying: Common Stock · 746 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.

F10 · derivative.exercise_price: These DERs were released in connection with the vesting of RSUs and PSUs granted on January 4, 2021, January 4, 2022, and January 4, 2023. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.

F10 · shares: These DERs were released in connection with the vesting of RSUs and PSUs granted on January 4, 2021, January 4, 2022, and January 4, 2023. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.

F10 · derivative.exercise_date: These DERs were released in connection with the vesting of RSUs and PSUs granted on January 4, 2021, January 4, 2022, and January 4, 2023. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.

F10 · derivative.expiration_date: These DERs were released in connection with the vesting of RSUs and PSUs granted on January 4, 2021, January 4, 2022, and January 4, 2023. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.

SEC source: 0000950170-24-003150 · ownership.xml · derivative · entry 9

BALL M LEROY · CIK 0001229771 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 41,150 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.

F2 · derivative.exercise_price: Restricted stock units convert into common stock on a one-for-one basis.

F9 · derivative.exercise_date: Represents previously granted performance share units for which the performance criteria for the three-year performance period from January 1, 2021 through December 31, 2023 have been satisfied, as reported in Table II above.

F9 · derivative.expiration_date: Represents previously granted performance share units for which the performance criteria for the three-year performance period from January 1, 2021 through December 31, 2023 have been satisfied, as reported in Table II above.

SEC source: 0000950170-24-003150 · ownership.xml · nonDerivative · entry 4

BALL M LEROY · CIK 0001229771 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 327,732.4007

F4 · 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") and performance share units ("PSUs").

SEC source: 0000950170-24-003150 · ownership.xml · nonDerivative · entry 3

BALL M LEROY · CIK 0001229771 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 353,179.4007

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

F3 · price: Represents shares acquired upon release of dividend equivalent rights ("DERs"), as reported in Table II, on a one-for-one basis.

SEC source: 0000950170-24-003150 · ownership.xml · nonDerivative · entry 2

BALL M LEROY · CIK 0001229771 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 352,433.4007

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 · price: Restricted stock units convert into common stock on a one-for-one basis.

SEC source: 0000950170-24-003150 · ownership.xml · derivative · entry 8

BALL M LEROY · CIK 0001229771 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,755

Underlying: Common Stock · 842 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, January 4, 2022, and January 4, 2023. 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, January 4, 2022, and January 4, 2023. 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, January 4, 2022, and January 4, 2023. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.

SEC source: 0000950170-24-003150 · ownership.xml · derivative · entry 7

BALL M LEROY · CIK 0001229771 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 28,726

Underlying: Common Stock · 28,726 shares

Expires not disclosed

F2 · derivative.exercise_price: Restricted stock units convert into common stock on a one-for-one basis.

F7 · derivative.exercise_date: On January 4, 2023, the reporting person was granted PSUs for which the performance criteria for the one-year performance period from January 1, 2023 through December 31, 2023 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, 2026. If the Company's total shareholder return over the three-year period of January 1, 2023 through December 31, 2025 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, 2023, the reporting person was granted PSUs for which the performance criteria for the one-year performance period from January 1, 2023 through December 31, 2023 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, 2026. If the Company's total shareholder return over the three-year period of January 1, 2023 through December 31, 2025 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: 0000950170-24-003150 · ownership.xml · derivative · entry 6

BALL M LEROY · CIK 0001229771 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 32,012

Underlying: Common Stock · 26,155 shares

Expires not disclosed

F2 · derivative.exercise_price: Restricted stock units convert into common stock on a one-for-one basis.

F6 · derivative.exercise_date: On January 4, 2022, the reporting person was granted PSUs for which the performance criteria for the two-year performance period from January 1, 2022 through December 31, 2023 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 performance criteria for the two-year performance period from January 1, 2022 through December 31, 2023 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: 0000950170-24-003150 · ownership.xml · derivative · entry 5

BALL M LEROY · CIK 0001229771 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 41,150

Underlying: Common Stock · 20,945 shares

Expires not disclosed

F2 · derivative.exercise_price: Restricted stock units convert into common stock on a one-for-one basis.

F5 · derivative.exercise_date: On January 4, 2021, the reporting person was granted PSUs for which the performance criteria for the three-year performance period from January 1, 2021 through December 31, 2023 have been satisfied.

F5 · derivative.expiration_date: On January 4, 2021, the reporting person was granted PSUs for which the performance criteria for the three-year performance period from January 1, 2021 through December 31, 2023 have been satisfied.

SEC source: 0000950170-24-003150 · ownership.xml · nonDerivative · entry 1

BALL M LEROY · CIK 0001229771 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 311,283.4007

F1 · security: The reporting person was awarded time-based restricted stock units on January 4, 2024, which will vest in annual installments of one-third each over three years.

SEC source: 0000950170-23-072222 · ownership.xml · derivative · entry 3

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 62,308

Underlying: Common Stock · 7,000 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: 0000950170-23-072222 · ownership.xml · nonDerivative · entry 2

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 296,421.4007

F1 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $49.04 to $49.64, 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: 0000950170-23-072222 · ownership.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 303,421.4007

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: 0000950170-23-070476 · ownership.xml · derivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 913

Underlying: Common Stock · 499 shares

Expires not disclosed

F1 · derivative.exercise_price: The dividend equivalent rights ("DERs") accrued with respect to additional time-based and performance-based restricted stock units ("RSUs" and "PSUs", respectively) credited to the reporting person. Of this total, 330 DERs accrued with respect to RSUs granted on March 3, 2020, January 4, 2021, January 4, 2022, and January 4, 2023, and 169 DERs accrued 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.

F1 · derivative.exercise_date: The dividend equivalent rights ("DERs") accrued with respect to additional time-based and performance-based restricted stock units ("RSUs" and "PSUs", respectively) credited to the reporting person. Of this total, 330 DERs accrued with respect to RSUs granted on March 3, 2020, January 4, 2021, January 4, 2022, and January 4, 2023, and 169 DERs accrued 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.

F1 · derivative.expiration_date: The dividend equivalent rights ("DERs") accrued with respect to additional time-based and performance-based restricted stock units ("RSUs" and "PSUs", respectively) credited to the reporting person. Of this total, 330 DERs accrued with respect to RSUs granted on March 3, 2020, January 4, 2021, January 4, 2022, and January 4, 2023, and 169 DERs accrued 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: 0000950170-23-067768 · ownership.xml · derivative · entry 4

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 69,308

Underlying: Common Stock · 13,102 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.

F3 · derivative.exercise_date: Stock options vested in annual installments of 25 percent over 4 years.

SEC source: 0000950170-23-067768 · ownership.xml · nonDerivative · entry 3

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 296,421.4007

F2 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $44.96 to $45.13, 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: 0000950170-23-067768 · ownership.xml · nonDerivative · entry 2

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 300,523.4007

F1 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $43.87 to $44.83, 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: 0000950170-23-067768 · ownership.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 309,523.4007

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: 0000950170-23-064508 · ownership.xml · derivative · entry 7

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Commmon Stock · 9,167 shares

Expires 2024-02-18

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: 0000950170-23-064508 · ownership.xml · nonDerivative · entry 5

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 296,421.4007

F3 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $43.43 to $43.76, inclusive. The reporting person undertakes to provide to the Securities and Exchange Commission, the issuer or any security holder, upon request, full information regarding the number of shares sold at each separate price.

SEC source: 0000950170-23-064508 · ownership.xml · nonDerivative · entry 4

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 297,261.4007

F2 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $42.38 to $43.38, inclusive. The reporting person undertakes to provide to the Securities and Exchange Commission, the issuer or any security holder, upon request, full information regarding the number of shares sold at each separate price.

SEC source: 0000950170-23-064508 · ownership.xml · nonDerivative · entry 3

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 305,588.4007

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: 0000950170-23-063749 · ownership.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 296,421.4007

SEC source: 0000950170-23-064508 · ownership.xml · derivative · entry 6

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 82,410

Underlying: Common Stock · 10,000 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.

F4 · derivative.exercise_date: The reporting person was granted stock options on March 3, 2015, which vested in annual installments of 25 percent over four years.

SEC source: 0000950170-23-064508 · ownership.xml · nonDerivative · entry 2

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 296,421.4007

F1 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $41.95 to $42.56, 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: 0000950170-23-064508 · ownership.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 306,421.4007

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: 0001209191-23-047866 · doc4.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 298,921.4007

F1 · balance_after: Includes 313 shares of Koppers Holdings Inc. common stock acquired pursuant to the Koppers Holdings Inc. Employee Stock Purchase Plan on June 30, 2023. These acquisitions were exempt under both Rule 16b-3(c) and Rule 16b-3(d).

SEC source: 0001209191-23-036339 · doc4.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 300,608.4007

SEC source: 0001209191-23-033350 · doc4.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 301,364.4007

F1 · balance_after: Includes 495 shares of Koppers Holdings Inc. common stock acquired pursuant to the Koppers Holdings Inc. Employee Stock Purchase Plan on March 31, 2023. These acquisitions were exempt under both Rule 16b-3(c) and Rule 16b-3(d).

SEC source: 0001209191-23-030058 · doc4.xml · nonDerivative · entry 1

BALL M LEROY · CIK 0001229771 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 31,138

F1 · shares: Annual award of restricted stock granted under the Issuer's 2022 Incentive Plan as part of the Issuer's Director compensation program. The award vests on the first anniversary of the grant date.

F2 · price: Annual award granted under the Issuer's 2022 Incentive Plan as part of the Issuer's Director compensation program.

SEC source: 0001209191-23-016846 · doc4.xml · derivative · entry 6

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 414

Underlying: Common Stock · 32 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 March 6, 2019. 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 March 6, 2019. 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 March 6, 2019. 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 March 6, 2019. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.

SEC source: 0001209191-23-016846 · doc4.xml · nonDerivative · entry 4

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 301,669.4007

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: 0001209191-23-016846 · doc4.xml · nonDerivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 303,524.4007

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: 0001209191-23-016846 · doc4.xml · derivative · entry 5

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 446

Underlying: Common Stock · 49 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 March 3, 2020. 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 March 3, 2020. 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 March 3, 2020. 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 March 3, 2020. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.

SEC source: 0001209191-23-016846 · doc4.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 303,492.4007

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: 0001209191-23-016846 · doc4.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 306,344.4007

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.