FSTR

SEC source: 0000352825-24-000167 · wk-form4_1719947053.xml · nonDerivative · entry 1

Treacy William · CIK 0001717854 · EVP & Chief Growth Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 30,810

F1 · balance_after: Includes 3,621 Performance Restricted Stock Units earned under the 2022-2024 Long Term Incentive Plan granted on 02/17/2022; those 3,621 Performance Restricted Stock Units will settle at the end of the 2022-2024 performance period on December 31, 2024, upon certification by the Compensation Committee.

F2 · balance_after: Includes 7,101 Performance Restricted Stock Units earned under the 2023-2025 Long Term Incentive Plan granted on 2/14/2023; those 7,101 Performance Restricted Stock Units will settle at the end of the performance period on December 31, 2025, upon certification by the Compensation Committee.

SEC source: 0000352825-24-000147 · wk-form4_1716924460.xml · nonDerivative · entry 1

OWEN DIANE B · CIK 0001215505 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 71,376

F1 · shares: Shares withheld to pay taxes applicable to the vesting of stock related to the 2023 Annual Director Equity Award.

SEC source: 0000352825-24-000145 · wk-form4_1716924313.xml · nonDerivative · entry 1

Kunz John E · CIK 0001525580 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,647

F1 · shares: Shares withheld to pay taxes applicable to the vesting of stock related to the 2023 Annual Directors' Equity Award.

SEC source: 0000352825-24-000138 · wk-form4_1716573256.xml · nonDerivative · entry 1

Betler Raymond T · CIK 0001443222 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 25,893

F1 · shares: 2024 Annual Director Equity Award

SEC source: 0000352825-24-000136 · wk-form4_1716573165.xml · nonDerivative · entry 1

Kunz John E · CIK 0001525580 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,677

F1 · shares: 2024 Annual Director Equity Award

SEC source: 0000352825-24-000134 · wk-form4_1716573086.xml · nonDerivative · entry 1

LEE JANET · CIK 0001711671 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,384

F1 · shares: 2024 Annual Director Equity Award

SEC source: 0000352825-24-000132 · wk-form4_1716572987.xml · nonDerivative · entry 1

Meyer David J · CIK 0001542601 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,406

F1 · shares: 2024 Annual Director Equity Award

SEC source: 0000352825-24-000130 · wk-form4_1716572909.xml · nonDerivative · entry 1

OWEN DIANE B · CIK 0001215505 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 71,452

F1 · shares: 2024 Annual Director Equity Award

SEC source: 0000352825-24-000128 · wk-form4_1716572817.xml · nonDerivative · entry 1

Thompson Bruce Ernest · CIK 0001930473 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,726

F1 · shares: 2024 Annual Director Equity Award

SEC source: 0000352825-24-000126 · wk-form4_1716572694.xml · nonDerivative · entry 1

THALMAN WILLIAM M · CIK 0001104808 · EVP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 56,306

F1 · balance_after: Includes 6,392 Performance Restricted Stock Units earned under the 2022-2024 Long Term Incentive Plan granted on 02/17/2022; those 6,392 Performance Restricted Stock Units will settle at the end of the 2022-2024 performance period on December 31, 2024, upon certification by the Compensation Committee.

F2 · balance_after: Includes 9,942 Performance Restricted Stock Units earned under the 2023-2025 Long Term Incentive Plan granted on 2/14/2023; those 9,942 Performance Restricted Stock Units will settle at the end of the performance period on December 31, 2025, upon certification by the Compensation Committee.

SEC source: 0000352825-24-000122 · wk-form4_1716572479.xml · nonDerivative · entry 1

Ness Robert · CIK 0001888828 · SVP, Precast Concrete Products

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 22,565

F1 · balance_after: Includes 2,663 Performance Restricted Stock Units earned under the 2022-2024 Long Term Incentive Plan granted on 02/17/2022; those 2,663 Performance Restricted Stock Units will settle at the end of the 2022-2024 performance period on December 31, 2024, upon certification by the Compensation Committee.

F2 · balance_after: Includes 4,261 Performance Restricted Stock Units earned under the 2023-2025 Long Term Incentive Plan granted on 2/14/2023; those 4,261 Performance Restricted Stock Units will settle at the end of the performance period on December 31, 2025, upon certification by the Compensation Committee.

SEC source: 0000352825-24-000124 · wk-form4_1716572584.xml · nonDerivative · entry 1

REILLY SEAN M · CIK 0001284955 · Controller

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,543

F1 · balance_after: Includes 2,130 Performance Restricted Stock Units earned under the 2022-2024 Long Term Incentive Plan granted on 02/17/2022; those 2,130 Performance Restricted Stock Units will settle at the end of the 2022-2024 performance period on December 31, 2024, upon certification by the Compensation Committee.

F2 · balance_after: Includes 3,551 Performance Restricted Stock Units earned under the 2023-2025 Long Term Incentive Plan granted on 2/14/2023; those 3,551 Performance Restricted Stock Units will settle at the end of the performance period on December 31, 2025, upon certification by the Compensation Committee.

SEC source: 0000352825-24-000120 · wk-form4_1716572363.xml · nonDerivative · entry 1

LIPPARD GREGORY W · CIK 0001215503 · SVP -Rail

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 61,329

F1 · balance_after: Includes 4,261 Performance Restricted Stock Units earned under the 2022-2024 Long Term Incentive Plan granted on 02/17/2022; those 4,261 Performance Restricted Stock Units will settle at the end of the 2022-2024 performance period on December 31, 2024, upon certification by the Compensation Committee.

F2 · balance_after: Includes 7,101 Performance Restricted Stock Units earned under the 2023-2025 Long Term Incentive Plan granted on 2/14/2023; those 7,101 Performance Restricted Stock Units will settle at the end of the performance period on December 31, 2025, upon certification by the Compensation Committee.

SEC source: 0000352825-24-000118 · wk-form4_1716572231.xml · nonDerivative · entry 1

Kelly Brian H · CIK 0001375886 · EVP HR & Administration

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 76,131

F1 · balance_after: Includes 5,327 Performance Restricted Stock Units earned under the 2022-2024 Long Term Incentive Plan granted on 02/17/2022; those 5,327 Performance Restricted Stock Units will settle at the end of the 2022-2024 performance period on December 31, 2024, upon certification by the Compensation Committee.

F2 · balance_after: Includes 8,522 Performance Restricted Stock Units earned under the 2023-2025 Long Term Incentive Plan granted on 2/14/2023; those 8,522 Performance Restricted Stock Units will settle at the end of the performance period on December 31, 2025, upon certification by the Compensation Committee.

SEC source: 0000352825-24-000116 · wk-form4_1716572020.xml · nonDerivative · entry 1

Guinee Patrick J. · CIK 0001600919 · EVP General Counsel & Sec.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 69,351

F1 · balance_after: Includes 5,859 Performance Restricted Stock Units earned under the 2022-2024 Long Term Incentive Plan granted on 02/17/2022; those 5,859 Performance Restricted Stock Units will settle at the end of the 2022-2024 performance period on December 31, 2024, upon certification by the Compensation Committee.

F2 · balance_after: Includes 8,522 Performance Restricted Stock Units earned under the 2023-2025 Long Term Incentive Plan granted on 2/14/2023; those 8,522 Performance Restricted Stock Units will settle at the end of the performance period on December 31, 2025, upon certification by the Compensation Committee.

SEC source: 0000352825-24-000112 · wk-form4_1716571712.xml · nonDerivative · entry 1

Friedman Brian Hunter · CIK 0001888993 · SVP, Steel Prods & Spec Proj

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,961

F1 · balance_after: Includes 2,663 Performance Restricted Stock Units earned under the 2022-2024 Long Term Incentive Plan granted on 02/17/2022; those 2,663 Performance Restricted Stock Units will settle at the end of the 2022-2024 performance period on December 31, 2024, upon certification by the Compensation Committee.

F2 · balance_after: Includes 4,261 Performance Restricted Stock Units earned under the 2023-2025 Long Term Incentive Plan granted on 2/14/2023; those 4,261 Performance Restricted Stock Units will settle at the end of the performance period on December 31, 2025, upon certification by the Compensation Committee.

SEC source: 0000352825-24-000110 · wk-form4_1716571276.xml · nonDerivative · entry 1

KASEL JOHN F · CIK 0001228393 · Director · President & Chief Exec Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 172,343

F1 · balance_after: Includes 12,783 Performance Restricted Stock Units earned under the 2022-2024 Long Term Incentive Plan granted on 02/17/2022; those 12,783 Performance Restricted Stock Units will settle at the end of the 2022-2024 performance period on December 31, 2024, upon certification by the Compensation Committee.

F2 · balance_after: Includes 31,245 Performance Restricted Stock Units earned under the 2023-2025 Long Term Incentive Plan granted on 2/14/2023; those 31,245 Performance Restricted Stock Units will settle at the end of the performance period on December 31, 2025, upon certification by the Compensation Committee.

SEC source: 0000921895-24-001326 · form410680013_05282024.xml · nonDerivative · entry 1

Jones Alexander B · CIK 0001888602 · Director · See Explanation of Responses

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,117

F1 · security: The Reporting Person may be deemed to be a member of a Section 13(d) group that collectively beneficially owns more than 10% of the Issuer's outstanding Common Stock. The Reporting Person disclaims beneficial ownership of the securities of the Issuer owned directly by other members of the Section 13(d) group and this report shall not be deemed an admission that he is the beneficial owner of such securities for purposes of Section 16 or for any other purpose. The Reporting Person also serves as a director of the Issuer.

F2 · shares: Represents the Reporting Person's 2024 Annual Director Equity Award, such shares will vest on May 23, 2025.

SEC source: 0000352825-24-000094 · wk-form4_1712688047.xml · derivative · entry 5

Treacy William · CIK 0001717854 · EVP & Chief Growth Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,667

Underlying: Common Stock · 1,666 shares

Expires 2026-02-28

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: Performance-based stock unit award which expires on 02/28/26, 5 years after the grant date. Fifty percent of the award, or 1,666 shares, may be earned when the consecutive 30 day average closing stock price per share of the Company's common stock on the Nasdaq Stock Market is $25.00 per share or more and is generally subject to continued employment with the Company until the third anniversary of the grant date. The remaining 50% of the award, or 1,667 shares, may be earned when the consecutive 30 day average closing stock price per share of the Company's common stock on the Nasdaq Stock Market is $30.00 per share or more and is generally subject to continued employment with the Company until the third anniversary of the grant date. If either or both of these measures are achieved after the third anniversary of the grant date, the shares will be issued upon attainment of such stock price goals and if the grantee is employed by the Company on the date of attainment of such goals.

F5 · shares: This amount represents fifty percent of the Performance-based stock unit award granted on 03/31/21 and earned on 04/05/24. The remaining fifty percent of the same award may be earned until 02/28/26, the award's expiration date.

F4 · derivative.exercise_date: Performance-based stock unit award which expires on 02/28/26, 5 years after the grant date. Fifty percent of the award, or 1,666 shares, may be earned when the consecutive 30 day average closing stock price per share of the Company's common stock on the Nasdaq Stock Market is $25.00 per share or more and is generally subject to continued employment with the Company until the third anniversary of the grant date. The remaining 50% of the award, or 1,667 shares, may be earned when the consecutive 30 day average closing stock price per share of the Company's common stock on the Nasdaq Stock Market is $30.00 per share or more and is generally subject to continued employment with the Company until the third anniversary of the grant date. If either or both of these measures are achieved after the third anniversary of the grant date, the shares will be issued upon attainment of such stock price goals and if the grantee is employed by the Company on the date of attainment of such goals.

SEC source: 0000352825-24-000094 · wk-form4_1712688047.xml · nonDerivative · entry 2

Treacy William · CIK 0001717854 · EVP & Chief Growth Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 33,955

F2 · balance_after: Includes 3,621 Performance Restricted Stock Units earned under the 2022-2024 Long Term Incentive Plan granted on 02/17/2022; those 3,621 Performance Restricted Stock Units will settle at the end of the 2022-2024 performance period on December 31, 2024, upon certification by the Compensation Committee.

F3 · balance_after: Includes 7,101 Performance Restricted Stock Units earned under the 2023-2025 Long Term Incentive Plan granted on 2/14/2023; those 7,101 Performance Restricted Stock Units will settle at the end of the performance period on December 31, 2025, upon certification by the Compensation Committee.

SEC source: 0000352825-24-000094 · wk-form4_1712688047.xml · nonDerivative · entry 1

Treacy William · CIK 0001717854 · EVP & Chief Growth Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 34,696

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: This amount represents fifty percent of the Performance-based stock unit award granted on 03/31/21 and earned on 04/05/24.

F2 · balance_after: Includes 3,621 Performance Restricted Stock Units earned under the 2022-2024 Long Term Incentive Plan granted on 02/17/2022; those 3,621 Performance Restricted Stock Units will settle at the end of the 2022-2024 performance period on December 31, 2024, upon certification by the Compensation Committee.

F3 · balance_after: Includes 7,101 Performance Restricted Stock Units earned under the 2023-2025 Long Term Incentive Plan granted on 2/14/2023; those 7,101 Performance Restricted Stock Units will settle at the end of the performance period on December 31, 2025, upon certification by the Compensation Committee.

SEC source: 0000352825-24-000088 · wk-form4_1712687560.xml · derivative · entry 5

Kelly Brian H · CIK 0001375886 · EVP HR & Administration

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,667

Underlying: Common Stock · 1,666 shares

Expires 2026-02-28

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: Performance-based stock unit award which expires on 02/28/26, 5 years after the grant date. Fifty percent of the award, or 1,666 shares, may be earned when the consecutive 30 day average closing stock price per share of the Company's common stock on the Nasdaq Stock Market is $25.00 per share or more and is generally subject to continued employment with the Company until the third anniversary of the grant date. The remaining 50% of the award, or 1,667 shares, may be earned when the consecutive 30 day average closing stock price per share of the Company's common stock on the Nasdaq Stock Market is $30.00 per share or more and is generally subject to continued employment with the Company until the third anniversary of the grant date. If either or both of these measures are achieved after the third anniversary of the grant date, the shares will be issued upon attainment of such stock price goals and if the grantee is employed by the Company on the date of attainment of such goals.

F5 · shares: This amount represents fifty percent of the Performance-based stock unit award granted on 03/31/21 and earned on 04/05/24. The remaining fifty percent of the same award may be earned until 02/28/26, the award's expiration date.

F4 · derivative.exercise_date: Performance-based stock unit award which expires on 02/28/26, 5 years after the grant date. Fifty percent of the award, or 1,666 shares, may be earned when the consecutive 30 day average closing stock price per share of the Company's common stock on the Nasdaq Stock Market is $25.00 per share or more and is generally subject to continued employment with the Company until the third anniversary of the grant date. The remaining 50% of the award, or 1,667 shares, may be earned when the consecutive 30 day average closing stock price per share of the Company's common stock on the Nasdaq Stock Market is $30.00 per share or more and is generally subject to continued employment with the Company until the third anniversary of the grant date. If either or both of these measures are achieved after the third anniversary of the grant date, the shares will be issued upon attainment of such stock price goals and if the grantee is employed by the Company on the date of attainment of such goals.

SEC source: 0000352825-24-000088 · wk-form4_1712687560.xml · nonDerivative · entry 2

Kelly Brian H · CIK 0001375886 · EVP HR & Administration

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 70,872

F2 · balance_after: Includes 5,327 Performance Restricted Stock Units earned under the 2022-2024 Long Term Incentive Plan granted on 02/17/2022; those 5,327 Performance Restricted Stock Units will settle at the end of the 2022-2024 performance period on December 31, 2024, upon certification by the Compensation Committee.

F3 · balance_after: Includes 8,522 Performance Restricted Stock Units earned under the 2023-2025 Long Term Incentive Plan granted on 2/14/2023; those 8,522 Performance Restricted Stock Units will settle at the end of the performance period on December 31, 2025, upon certification by the Compensation Committee.

SEC source: 0000352825-24-000088 · wk-form4_1712687560.xml · nonDerivative · entry 1

Kelly Brian H · CIK 0001375886 · EVP HR & Administration

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 71,579

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: This amount represents fifty percent of the Performance-based stock unit award granted on 03/31/21 and earned on 04/05/24.

F2 · balance_after: Includes 5,327 Performance Restricted Stock Units earned under the 2022-2024 Long Term Incentive Plan granted on 02/17/2022; those 5,327 Performance Restricted Stock Units will settle at the end of the 2022-2024 performance period on December 31, 2024, upon certification by the Compensation Committee.

F3 · balance_after: Includes 8,522 Performance Restricted Stock Units earned under the 2023-2025 Long Term Incentive Plan granted on 2/14/2023; those 8,522 Performance Restricted Stock Units will settle at the end of the performance period on December 31, 2025, upon certification by the Compensation Committee.

SEC source: 0000352825-24-000092 · wk-form4_1712687907.xml · derivative · entry 4

THALMAN WILLIAM M · CIK 0001104808 · EVP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,667

Underlying: Common Stock · 1,666 shares

Expires 2026-02-28

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: Performance-based stock unit award which expires on 02/28/26, 5 years after the grant date. Fifty percent of the award, or 1,666 shares, may be earned when the consecutive 30 day average closing stock price per share of the Company's common stock on the Nasdaq Stock Market is $25.00 per share or more and is generally subject to continued employment with the Company until the third anniversary of the grant date. The remaining 50% of the award, or 1,667 shares, may be earned when the consecutive 30 day average closing stock price per share of the Company's common stock on the Nasdaq Stock Market is $30.00 per share or more and is generally subject to continued employment with the Company until the third anniversary of the grant date. If either or both of these measures are achieved after the third anniversary of the grant date, the shares will be issued upon attainment of such stock price goals and if the grantee is employed by the Company on the date of attainment of such goals.

F5 · shares: This amount represents fifty percent of the Performance-based stock unit award granted on 03/31/21 and earned on 04/05/24. The remaining fifty percent of the same award may be earned until 02/28/26, the award's expiration date.

F4 · derivative.exercise_date: Performance-based stock unit award which expires on 02/28/26, 5 years after the grant date. Fifty percent of the award, or 1,666 shares, may be earned when the consecutive 30 day average closing stock price per share of the Company's common stock on the Nasdaq Stock Market is $25.00 per share or more and is generally subject to continued employment with the Company until the third anniversary of the grant date. The remaining 50% of the award, or 1,667 shares, may be earned when the consecutive 30 day average closing stock price per share of the Company's common stock on the Nasdaq Stock Market is $30.00 per share or more and is generally subject to continued employment with the Company until the third anniversary of the grant date. If either or both of these measures are achieved after the third anniversary of the grant date, the shares will be issued upon attainment of such stock price goals and if the grantee is employed by the Company on the date of attainment of such goals.

SEC source: 0000352825-24-000092 · wk-form4_1712687907.xml · nonDerivative · entry 2

THALMAN WILLIAM M · CIK 0001104808 · EVP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 50,143

F2 · balance_after: Includes 6,392 Performance Restricted Stock Units earned under the 2022-2024 Long Term Incentive Plan granted on 02/17/2022; those 6,392 Performance Restricted Stock Units will settle at the end of the 2022-2024 performance period on December 31, 2024, upon certification by the Compensation Committee.

F3 · balance_after: Includes 9,942 Performance Restricted Stock Units earned under the 2023-2025 Long Term Incentive Plan granted on 2/14/2023; those 9,942 Performance Restricted Stock Units will settle at the end of the performance period on December 31, 2025, upon certification by the Compensation Committee.

SEC source: 0000352825-24-000092 · wk-form4_1712687907.xml · nonDerivative · entry 1

THALMAN WILLIAM M · CIK 0001104808 · EVP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 50,858

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: This amount represents fifty percent of the Performance-based stock unit award granted on 03/31/21 and earned on 04/05/24.

F2 · balance_after: Includes 6,392 Performance Restricted Stock Units earned under the 2022-2024 Long Term Incentive Plan granted on 02/17/2022; those 6,392 Performance Restricted Stock Units will settle at the end of the 2022-2024 performance period on December 31, 2024, upon certification by the Compensation Committee.

F3 · balance_after: Includes 9,942 Performance Restricted Stock Units earned under the 2023-2025 Long Term Incentive Plan granted on 2/14/2023; those 9,942 Performance Restricted Stock Units will settle at the end of the performance period on December 31, 2025, upon certification by the Compensation Committee.

SEC source: 0000352825-24-000090 · wk-form4_1712687724.xml · derivative · entry 5

LIPPARD GREGORY W · CIK 0001215503 · SVP -Rail

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,667

Underlying: Common Stock · 1,666 shares

Expires 2026-02-28

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: Performance-based stock unit award which expires on 02/28/26, 5 years after the grant date. Fifty percent of the award, or 1,666 shares, may be earned when the consecutive 30 day average closing stock price per share of the Company's common stock on the Nasdaq Stock Market is $25.00 per share or more and is generally subject to continued employment with the Company until the third anniversary of the grant date. The remaining 50% of the award, or 1,667 shares, may be earned when the consecutive 30 day average closing stock price per share of the Company's common stock on the Nasdaq Stock Market is $30.00 per share or more and is generally subject to continued employment with the Company until the third anniversary of the grant date. If either or both of these measures are achieved after the third anniversary of the grant date, the shares will be issued upon attainment of such stock price goals and if the grantee is employed by the Company on the date of attainment of such goals.

F5 · shares: This amount represents fifty percent of the Performance-based stock unit award granted on 03/31/21 and earned on 04/05/24. The remaining fifty percent of the same award may be earned until 02/28/26, the award's expiration date.

F4 · derivative.exercise_date: Performance-based stock unit award which expires on 02/28/26, 5 years after the grant date. Fifty percent of the award, or 1,666 shares, may be earned when the consecutive 30 day average closing stock price per share of the Company's common stock on the Nasdaq Stock Market is $25.00 per share or more and is generally subject to continued employment with the Company until the third anniversary of the grant date. The remaining 50% of the award, or 1,667 shares, may be earned when the consecutive 30 day average closing stock price per share of the Company's common stock on the Nasdaq Stock Market is $30.00 per share or more and is generally subject to continued employment with the Company until the third anniversary of the grant date. If either or both of these measures are achieved after the third anniversary of the grant date, the shares will be issued upon attainment of such stock price goals and if the grantee is employed by the Company on the date of attainment of such goals.

SEC source: 0000352825-24-000090 · wk-form4_1712687724.xml · nonDerivative · entry 2

LIPPARD GREGORY W · CIK 0001215503 · SVP -Rail

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 56,810

F2 · balance_after: Includes 4,261 Performance Restricted Stock Units earned under the 2022-2024 Long Term Incentive Plan granted on 02/17/2022; those 4,261 Performance Restricted Stock Units will settle at the end of the 2022-2024 performance period on December 31, 2024, upon certification by the Compensation Committee.

F3 · balance_after: Includes 7,101 Performance Restricted Stock Units earned under the 2023-2025 Long Term Incentive Plan granted on 2/14/2023; those 7,101 Performance Restricted Stock Units will settle at the end of the performance period on December 31, 2025, upon certification by the Compensation Committee.

SEC source: 0000352825-24-000090 · wk-form4_1712687724.xml · nonDerivative · entry 1

LIPPARD GREGORY W · CIK 0001215503 · SVP -Rail

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 57,543

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: This amount represents fifty percent of the Performance-based stock unit award granted on 03/31/21 and earned on 04/05/24.

F2 · balance_after: Includes 4,261 Performance Restricted Stock Units earned under the 2022-2024 Long Term Incentive Plan granted on 02/17/2022; those 4,261 Performance Restricted Stock Units will settle at the end of the 2022-2024 performance period on December 31, 2024, upon certification by the Compensation Committee.

F3 · balance_after: Includes 7,101 Performance Restricted Stock Units earned under the 2023-2025 Long Term Incentive Plan granted on 2/14/2023; those 7,101 Performance Restricted Stock Units will settle at the end of the performance period on December 31, 2025, upon certification by the Compensation Committee.

SEC source: 0000352825-24-000084 · wk-form4_1712687166.xml · derivative · entry 4

Guinee Patrick J. · CIK 0001600919 · EVP General Counsel & Sec.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,667

Underlying: Common Stock · 1,666 shares

Expires 2026-02-28

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: Performance-based stock unit award which expires on 02/28/26, 5 years after the grant date. Fifty percent of the award, or 1,666 shares, may be earned when the consecutive 30 day average closing stock price per share of the Company's common stock on the Nasdaq Stock Market is $25.00 per share or more and is generally subject to continued employment with the Company until the third anniversary of the grant date. The remaining 50% of the award, or 1,667 shares, may be earned when the consecutive 30 day average closing stock price per share of the Company's common stock on the Nasdaq Stock Market is $30.00 per share or more and is generally subject to continued employment with the Company until the third anniversary of the grant date. If either or both of these measures are achieved after the third anniversary of the grant date, the shares will be issued upon attainment of such stock price goals and if the grantee is employed by the Company on the date of attainment of such goals.

F5 · shares: This amount represents fifty percent of the Performance-based stock unit award granted on 03/31/21 and earned on 04/05/24. The remaining fifty percent of the same award may be earned until 02/28/26, the award's expiration date.

F4 · derivative.exercise_date: Performance-based stock unit award which expires on 02/28/26, 5 years after the grant date. Fifty percent of the award, or 1,666 shares, may be earned when the consecutive 30 day average closing stock price per share of the Company's common stock on the Nasdaq Stock Market is $25.00 per share or more and is generally subject to continued employment with the Company until the third anniversary of the grant date. The remaining 50% of the award, or 1,667 shares, may be earned when the consecutive 30 day average closing stock price per share of the Company's common stock on the Nasdaq Stock Market is $30.00 per share or more and is generally subject to continued employment with the Company until the third anniversary of the grant date. If either or both of these measures are achieved after the third anniversary of the grant date, the shares will be issued upon attainment of such stock price goals and if the grantee is employed by the Company on the date of attainment of such goals.

SEC source: 0000352825-24-000084 · wk-form4_1712687166.xml · nonDerivative · entry 2

Guinee Patrick J. · CIK 0001600919 · EVP General Counsel & Sec.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 65,681

F2 · balance_after: Includes 5,859 Performance Restricted Stock Units earned under the 2022-2024 Long Term Incentive Plan granted on 02/17/2022; those 5,859 Performance Restricted Stock Units will settle at the end of the 2022-2024 performance period on December 31, 2024 upon certification by the Compensation Committee.

F3 · balance_after: Includes 8,522 Performance Restricted Stock Units earned under the 2023-2025 Long Term Incentive Plan granted on 2/14/2023; those 8,522 Performance Restricted Stock Units will settle at the end of the performance period on December 31, 2025, upon certification by the Compensation Committee.

SEC source: 0000352825-24-000084 · wk-form4_1712687166.xml · nonDerivative · entry 1

Guinee Patrick J. · CIK 0001600919 · EVP General Counsel & Sec.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 66,395

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: This amount represents fifty percent of the Performance-based stock unit award granted on 03/31/21 and earned on 04/05/24.

F2 · balance_after: Includes 5,859 Performance Restricted Stock Units earned under the 2022-2024 Long Term Incentive Plan granted on 02/17/2022; those 5,859 Performance Restricted Stock Units will settle at the end of the 2022-2024 performance period on December 31, 2024 upon certification by the Compensation Committee.

F3 · balance_after: Includes 8,522 Performance Restricted Stock Units earned under the 2023-2025 Long Term Incentive Plan granted on 2/14/2023; those 8,522 Performance Restricted Stock Units will settle at the end of the performance period on December 31, 2025, upon certification by the Compensation Committee.

SEC source: 0000352825-24-000086 · wk-form4_1712687373.xml · derivative · entry 5

KASEL JOHN F · CIK 0001228393 · Director · President & Chief Exec Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,667

Underlying: Common Stock · 1,666 shares

Expires 2026-02-28

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: Performance-based stock unit award which expires on 02/28/26, 5 years after the grant date. Fifty percent of the award, or 1,666 shares, may be earned when the consecutive 30 day average closing stock price per share of the Company's common stock on the Nasdaq Stock Market is $25.00 per share or more and is generally subject to continued employment with the Company until the third anniversary of the grant date. The remaining 50% of the award, or 1,667 shares, may be earned when the consecutive 30 day average closing stock price per share of the Company's common stock on the Nasdaq Stock Market is $30.00 per share or more and is generally subject to continued employment with the Company until the third anniversary of the grant date. If either or both of these measures are achieved after the third anniversary of the grant date, the shares will be issued upon attainment of such stock price goals and if the grantee is employed by the Company on the date of attainment of such goals.

F5 · shares: This amount represents fifty percent of the Performance-based stock unit award granted on 03/31/21 and earned on 04/05/24. The remaining fifty percent of the same award may be earned until 02/28/26, the award's expiration date.

F4 · derivative.exercise_date: Performance-based stock unit award which expires on 02/28/26, 5 years after the grant date. Fifty percent of the award, or 1,666 shares, may be earned when the consecutive 30 day average closing stock price per share of the Company's common stock on the Nasdaq Stock Market is $25.00 per share or more and is generally subject to continued employment with the Company until the third anniversary of the grant date. The remaining 50% of the award, or 1,667 shares, may be earned when the consecutive 30 day average closing stock price per share of the Company's common stock on the Nasdaq Stock Market is $30.00 per share or more and is generally subject to continued employment with the Company until the third anniversary of the grant date. If either or both of these measures are achieved after the third anniversary of the grant date, the shares will be issued upon attainment of such stock price goals and if the grantee is employed by the Company on the date of attainment of such goals.

SEC source: 0000352825-24-000086 · wk-form4_1712687373.xml · nonDerivative · entry 2

KASEL JOHN F · CIK 0001228393 · Director · President & Chief Exec Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 152,622

F2 · balance_after: Includes 12,783 Performance Restricted Stock Units earned under the 2022-2024 Long Term Incentive Plan granted on 02/17/2022; those 12,783 Performance Restricted Stock Units will settle at the end of the 2022-2024 performance period on December 31, 2024, upon certification by the Compensation Committee.

F3 · balance_after: Includes 31,245 Performance Restricted Stock Units earned under the 2023-2025 Long Term Incentive Plan granted on 2/14/2023; those 31,245 Performance Restricted Stock Units will settle at the end of the performance period on December 31, 2025, upon certification by the Compensation Committee.

SEC source: 0000352825-24-000086 · wk-form4_1712687373.xml · nonDerivative · entry 1

KASEL JOHN F · CIK 0001228393 · Director · President & Chief Exec Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 153,348

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: This amount represents fifty percent of the Performance-based stock unit award granted on 03/31/21 and earned on 04/05/24.

F2 · balance_after: Includes 12,783 Performance Restricted Stock Units earned under the 2022-2024 Long Term Incentive Plan granted on 02/17/2022; those 12,783 Performance Restricted Stock Units will settle at the end of the 2022-2024 performance period on December 31, 2024, upon certification by the Compensation Committee.

F3 · balance_after: Includes 31,245 Performance Restricted Stock Units earned under the 2023-2025 Long Term Incentive Plan granted on 2/14/2023; those 31,245 Performance Restricted Stock Units will settle at the end of the performance period on December 31, 2025, upon certification by the Compensation Committee.

SEC source: 0000352825-24-000073 · wk-form4_1709669162.xml · nonDerivative · entry 1

THALMAN WILLIAM M · CIK 0001104808 · EVP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 49,192

F1 · balance_after: Includes 6,392 Performance Restricted Stock Units earned under the 2022-2024 Long Term Incentive Plan granted on 02/17/2022; those 6,392 Performance Restricted Stock Units will settle at the end of the 2022-2024 performance period on December 31, 2024, upon certification by the Compensation Committee.

F2 · balance_after: Includes 9,942 Performance Restricted Stock Units earned under the 2023-2025 Long Term Incentive Plan granted on 2/14/2023; those 9,942 Performance Restricted Stock Units will settle at the end of the performance period on December 31, 2025, upon certification by the Compensation Committee.

SEC source: 0000352825-24-000068 · wk-form4_1709582947.xml · nonDerivative · entry 3

Jones Peter David Vaughan · CIK 0001888834 · SVP, UK Services & Solutions

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,081

SEC source: 0000352825-24-000068 · wk-form4_1709582947.xml · nonDerivative · entry 2

Jones Peter David Vaughan · CIK 0001888834 · SVP, UK Services & Solutions

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,874

SEC source: 0000352825-24-000068 · wk-form4_1709582947.xml · nonDerivative · entry 1

Jones Peter David Vaughan · CIK 0001888834 · SVP, UK Services & Solutions

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,667

F1 · balance_after: Includes 2,663 Performance Restricted Stock Units earned under the 2022-2024 Long Term Incentive Plan granted on 02/17/2022; those 2,663 Performance Restricted Stock Units will settle at the end of the 2022-2024 performance period on December 31, 2024, upon certification by the Compensation Committee.

F2 · balance_after: Includes 4,261 Performance Restricted Stock Units earned under the 2023-2025 Long Term Incentive Plan granted on 2/14/2023; those 4,261 Performance Restricted Stock Units will settle at the end of the performance period on December 31, 2025, upon certification by the Compensation Committee.

SEC source: 0000352825-24-000066 · wk-form4_1709072082.xml · nonDerivative · entry 1

Treacy William · CIK 0001717854 · EVP & Chief Growth Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 33,030

F1 · balance_after: Includes 3,621 Performance Restricted Stock Units earned under the 2022-2024 Long Term Incentive Plan granted on 02/17/2022; those 3,621 Performance Restricted Stock Units will settle at the end of the 2022-2024 performance period on December 31, 2024, upon certification by the Compensation Committee.

F2 · balance_after: Includes 7,101 Performance Restricted Stock Units earned under the 2023-2025 Long Term Incentive Plan granted on 2/14/2023; those 7,101 Performance Restricted Stock Units will settle at the end of the performance period on December 31, 2025, upon certification by the Compensation Committee.

SEC source: 0000352825-24-000064 · wk-form4_1709071912.xml · nonDerivative · entry 1

THALMAN WILLIAM M · CIK 0001104808 · EVP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 51,356

F1 · balance_after: Includes 6,392 Performance Restricted Stock Units earned under the 2022-2024 Long Term Incentive Plan granted on 02/17/2022; those 6,392 Performance Restricted Stock Units will settle at the end of the 2022-2024 performance period on December 31, 2024, upon certification by the Compensation Committee.

F2 · balance_after: Includes 9,942 Performance Restricted Stock Units earned under the 2023-2025 Long Term Incentive Plan granted on 2/14/2023; those 9,942 Performance Restricted Stock Units will settle at the end of the performance period on December 31, 2025, upon certification by the Compensation Committee.

SEC source: 0000352825-24-000062 · wk-form4_1709071690.xml · nonDerivative · entry 1

Kelly Brian H · CIK 0001375886 · EVP HR & Administration

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 69,913

F1 · balance_after: Includes 5,327 Performance Restricted Stock Units earned under the 2022-2024 Long Term Incentive Plan granted on 02/17/2022; those 5,327 Performance Restricted Stock Units will settle at the end of the 2022-2024 performance period on December 31, 2024, upon certification by the Compensation Committee.

F2 · balance_after: Includes 8,522 Performance Restricted Stock Units earned under the 2023-2025 Long Term Incentive Plan granted on 2/14/2023; those 8,522 Performance Restricted Stock Units will settle at the end of the performance period on December 31, 2025, upon certification by the Compensation Committee.

SEC source: 0000352825-24-000060 · wk-form4_1709071500.xml · nonDerivative · entry 1

Ness Robert · CIK 0001888828 · SVP, Precast Concrete Products

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,278

F1 · balance_after: Includes 2,663 Performance Restricted Stock Units earned under the 2022-2024 Long Term Incentive Plan granted on 02/17/2022; those 2,663 Performance Restricted Stock Units will settle at the end of the 2022-2024 performance period on December 31, 2024, upon certification by the Compensation Committee.

F2 · balance_after: Includes 4,261 Performance Restricted Stock Units earned under the 2023-2025 Long Term Incentive Plan granted on 2/14/2023; those 4,261 Performance Restricted Stock Units will settle at the end of the performance period on December 31, 2025, upon certification by the Compensation Committee.

SEC source: 0000352825-24-000058 · wk-form4_1709071303.xml · nonDerivative · entry 1

Jones Peter David Vaughan · CIK 0001888834 · SVP, UK Services & Solutions

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,118

F1 · balance_after: Includes 2,663 Performance Restricted Stock Units earned under the 2022-2024 Long Term Incentive Plan granted on 02/17/2022; those 2,663 Performance Restricted Stock Units will settle at the end of the 2022-2024 performance period on December 31, 2024, upon certification by the Compensation Committee.

F2 · balance_after: Includes 4,261 Performance Restricted Stock Units earned under the 2023-2025 Long Term Incentive Plan granted on 2/14/2023; those 4,261 Performance Restricted Stock Units will settle at the end of the performance period on December 31, 2025, upon certification by the Compensation Committee.

SEC source: 0000352825-24-000056 · wk-form4_1709071114.xml · nonDerivative · entry 1

LIPPARD GREGORY W · CIK 0001215503 · SVP -Rail

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 55,877

F1 · balance_after: Includes 4,261 Performance Restricted Stock Units earned under the 2022-2024 Long Term Incentive Plan granted on 02/17/2022; those 4,261 Performance Restricted Stock Units will settle at the end of the 2022-2024 performance period on December 31, 2024, upon certification by the Compensation Committee.

F2 · balance_after: Includes 7,101 Performance Restricted Stock Units earned under the 2023-2025 Long Term Incentive Plan granted on 2/14/2023; those 7,101 Performance Restricted Stock Units will settle at the end of the performance period on December 31, 2025, upon certification by the Compensation Committee.

SEC source: 0000352825-24-000054 · wk-form4_1709070934.xml · nonDerivative · entry 1

Guinee Patrick J. · CIK 0001600919 · EVP General Counsel & Sec.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 64,729

F1 · balance_after: Includes 5,859 Performance Restricted Stock Units earned under the 2022-2024 Long Term Incentive Plan granted on 02/17/2022; those 5,859 Performance Restricted Stock Units will settle at the end of the 2022-2024 performance period on December 31, 2024, upon certification by the Compensation Committee.

F2 · balance_after: Includes 8,522 Performance Restricted Stock Units earned under the 2023-2025 Long Term Incentive Plan granted on 2/14/2023; those 8,522 Performance Restricted Stock Units will settle at the end of the performance period on December 31, 2025, upon certification by the Compensation Committee.

SEC source: 0000352825-24-000052 · wk-form4_1709070728.xml · nonDerivative · entry 2

KASEL JOHN F · CIK 0001228393 · Director · President & Chief Exec Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 151,173

SEC source: 0000352825-24-000052 · wk-form4_1709070728.xml · nonDerivative · entry 1

KASEL JOHN F · CIK 0001228393 · Director · President & Chief Exec Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 151,614

F1 · balance_after: Includes 12,783 Performance Restricted Stock Units earned under the 2022-2024 Long Term Incentive Plan granted on 02/17/2022; those 12,783 Performance Restricted Stock Units will settle at the end of the 2022-2024 performance period on December 31, 2024, upon certification by the Compensation Committee.

F2 · balance_after: Includes 31,245 Performance Restricted Stock Units earned under the 2023-2025 Long Term Incentive Plan granted on 2/14/2023; those 31,245 Performance Restricted Stock Units will settle at the end of the performance period on December 31, 2025, upon certification by the Compensation Committee.

SEC source: 0000352825-24-000082 · wk-form4a_1709928832.xml · nonDerivative · entry 2

KASEL JOHN F · CIK 0001228393 · Director · President & Chief Exec Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 151,682

F1 · balance_after: Total adjusted by 509 shares to reflect correction of error on Form 4 originally filed on 2/15/2024 and amended on 3/8/2024; and Form 4 originally filed on 2/21/2024 and amended on 3/8/2024; and Form 4 originally filed on 2/27/2024.