HII

SEC source: 0001628280-25-008681 · wk-form4_1740691221.xml · derivative · entry 4

Powell Stephen R. · CIK 0002049877 · Corp VP & Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 775.738

Underlying: Restricted Stock Rights · 49.86 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: Each Restricted Stock Right ("RSR") represents a contingent right to receive an equivalent number of shares of Company common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock. The RSRs were granted under the 2022 Long-Term Incentive Stock Plan on 2/26/24 and vest ratably in three equal installments upon each of the first, second and third anniversaries of the grant date.

F2 · derivative.exercise_date: Each Restricted Stock Right ("RSR") represents a contingent right to receive an equivalent number of shares of Company common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock. The RSRs were granted under the 2022 Long-Term Incentive Stock Plan on 2/26/24 and vest ratably in three equal installments upon each of the first, second and third anniversaries of the grant date.

F2 · derivative.expiration_date: Each Restricted Stock Right ("RSR") represents a contingent right to receive an equivalent number of shares of Company common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock. The RSRs were granted under the 2022 Long-Term Incentive Stock Plan on 2/26/24 and vest ratably in three equal installments upon each of the first, second and third anniversaries of the grant date.

SEC source: 0001628280-25-008681 · wk-form4_1740691221.xml · nonDerivative · entry 2

Powell Stephen R. · CIK 0002049877 · Corp VP & Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 30.863

F1 · shares: Shares withheld by issuer for the payment of withholding taxes on restricted stock that vested on February 26, 2025.

SEC source: 0001628280-25-008681 · wk-form4_1740691221.xml · nonDerivative · entry 1

Powell Stephen R. · CIK 0002049877 · Corp VP & Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 49.86

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: 0001628280-25-008670 · wk-form4_1740691133.xml · derivative · entry 3

Borkey Todd A. · CIK 0001948701 · Ex VP & Chief Technology Offic

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,377.354

Underlying: Common Stock · 299.159 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: Each Restricted Stock Right ("RSR") represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock. The RSRs were granted under the 2022 Long-Term Incentive Stock Plan on 2/26/24 and vest ratably in three equal installments upon each of the first, second and third anniversaries of the grant date.

F2 · derivative.exercise_date: Each Restricted Stock Right ("RSR") represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock. The RSRs were granted under the 2022 Long-Term Incentive Stock Plan on 2/26/24 and vest ratably in three equal installments upon each of the first, second and third anniversaries of the grant date.

F2 · derivative.expiration_date: Each Restricted Stock Right ("RSR") represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock. The RSRs were granted under the 2022 Long-Term Incentive Stock Plan on 2/26/24 and vest ratably in three equal installments upon each of the first, second and third anniversaries of the grant date.

SEC source: 0001628280-25-008670 · wk-form4_1740691133.xml · nonDerivative · entry 2

Borkey Todd A. · CIK 0001948701 · Ex VP & Chief Technology Offic

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,028.907

F1 · shares: Shares withheld by the issuer for the payment of withholding taxes on restricted stock that vested on December 26, 2025.

SEC source: 0001628280-25-008670 · wk-form4_1740691133.xml · nonDerivative · entry 1

Borkey Todd A. · CIK 0001948701 · Ex VP & Chief Technology Offic

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,173.401

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: 0001628280-25-008675 · wk-form4_1740691176.xml · derivative · entry 4

Hughes Edmond E. Jr. · CIK 0001920500 · Ex VP & Chief HR Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,377.354

Underlying: Common Stock · 299.159 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: Each Restricted Stock Right ("RSR") represents a contingent right to receive an equivalent number of shares of Company common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock. The RSRs were granted under the 2022 Long-Term Incentive Stock Plan on 2/26/24 and vest ratably in three equal installments upon each of the first, second and third anniversaries of the grant date.

F2 · derivative.exercise_date: Each Restricted Stock Right ("RSR") represents a contingent right to receive an equivalent number of shares of Company common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock. The RSRs were granted under the 2022 Long-Term Incentive Stock Plan on 2/26/24 and vest ratably in three equal installments upon each of the first, second and third anniversaries of the grant date.

F2 · derivative.expiration_date: Each Restricted Stock Right ("RSR") represents a contingent right to receive an equivalent number of shares of Company common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock. The RSRs were granted under the 2022 Long-Term Incentive Stock Plan on 2/26/24 and vest ratably in three equal installments upon each of the first, second and third anniversaries of the grant date.

SEC source: 0001628280-25-008675 · wk-form4_1740691176.xml · nonDerivative · entry 2

Hughes Edmond E. Jr. · CIK 0001920500 · Ex VP & Chief HR Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,881.017

F1 · shares: Shares withheld by the issuer for the payment of withholding taxes on restricted stock that vested on February 26, 2025.

SEC source: 0001628280-25-008675 · wk-form4_1740691176.xml · nonDerivative · entry 1

Hughes Edmond E. Jr. · CIK 0001920500 · Ex VP & Chief HR Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,009.955

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: 0001628280-25-008669 · wk-form4_1740691122.xml · derivative · entry 3

Holmes Stewart H. · CIK 0001886377 · Ex. VP, Govt & Cust Relations

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,110.354

Underlying: Common Stock · 299.159 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: Each Restricted Stock Right ("RSR") represents a contingent right to receive an equivalent number of shares of Company common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock. The RSRs were granted under the 2022 Long-Term Incentive Stock Plan on 2/26/24 and vest ratably in three equal installments upon each of the first, second and third anniversaries of the grant date.

F2 · derivative.exercise_date: Each Restricted Stock Right ("RSR") represents a contingent right to receive an equivalent number of shares of Company common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock. The RSRs were granted under the 2022 Long-Term Incentive Stock Plan on 2/26/24 and vest ratably in three equal installments upon each of the first, second and third anniversaries of the grant date.

F2 · derivative.expiration_date: Each Restricted Stock Right ("RSR") represents a contingent right to receive an equivalent number of shares of Company common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock. The RSRs were granted under the 2022 Long-Term Incentive Stock Plan on 2/26/24 and vest ratably in three equal installments upon each of the first, second and third anniversaries of the grant date.

SEC source: 0001628280-25-008669 · wk-form4_1740691122.xml · nonDerivative · entry 2

Holmes Stewart H. · CIK 0001886377 · Ex. VP, Govt & Cust Relations

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,876.982

F1 · shares: Shares withheld by the issuer for the payment of withholding taxes on restricted stock that vested on February 26, 2025.

SEC source: 0001628280-25-008669 · wk-form4_1740691122.xml · nonDerivative · entry 1

Holmes Stewart H. · CIK 0001886377 · Ex. VP, Govt & Cust Relations

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,015.493

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: 0001628280-25-008684 · wk-form4_1740691240.xml · derivative · entry 3

Hart Brooke · CIK 0001886264 · Ex. VP, Communications

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,055.176

Underlying: Common Stock · 149.581 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: Each Restricted Stock Right ("RSR") represents a contingent right to receive an equivalent number of shares of Company common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock. The RSRs were granted under the 2022 Long-Term Incentive Stock Plan on 2/26/24 and vest ratably in three equal installments upon each of the first, second and third anniversaries of the grant date.

F2 · derivative.exercise_date: Each Restricted Stock Right ("RSR") represents a contingent right to receive an equivalent number of shares of Company common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock. The RSRs were granted under the 2022 Long-Term Incentive Stock Plan on 2/26/24 and vest ratably in three equal installments upon each of the first, second and third anniversaries of the grant date.

F2 · derivative.expiration_date: Each Restricted Stock Right ("RSR") represents a contingent right to receive an equivalent number of shares of Company common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock. The RSRs were granted under the 2022 Long-Term Incentive Stock Plan on 2/26/24 and vest ratably in three equal installments upon each of the first, second and third anniversaries of the grant date.

SEC source: 0001628280-25-008684 · wk-form4_1740691240.xml · nonDerivative · entry 2

Hart Brooke · CIK 0001886264 · Ex. VP, Communications

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,435.38

F1 · shares: Shares withheld by the issuer for the payment of withholding taxes on restricted stock that vested on February 26, 2025.

SEC source: 0001628280-25-008684 · wk-form4_1740691240.xml · nonDerivative · entry 1

Hart Brooke · CIK 0001886264 · Ex. VP, Communications

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,499.85

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: 0001628280-25-008683 · wk-form4_1740691231.xml · derivative · entry 3

Wilkinson Kara R. · CIK 0001852543 · Ex. VP and President, NNS

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,477.003

Underlying: Common Stock · 404.985 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: Each Restricted Stock Right ("RSR") represents a contingent right to receive an equivalent number of shares of Company common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock. The RSRs were granted under the 2022 Long-Term Incentive Stock Plan on 2/26/24 and vest ratably in three equal installments upon each of the first, second and third anniversaries of the grant date.

F2 · derivative.exercise_date: Each Restricted Stock Right ("RSR") represents a contingent right to receive an equivalent number of shares of Company common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock. The RSRs were granted under the 2022 Long-Term Incentive Stock Plan on 2/26/24 and vest ratably in three equal installments upon each of the first, second and third anniversaries of the grant date.

F2 · derivative.expiration_date: Each Restricted Stock Right ("RSR") represents a contingent right to receive an equivalent number of shares of Company common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock. The RSRs were granted under the 2022 Long-Term Incentive Stock Plan on 2/26/24 and vest ratably in three equal installments upon each of the first, second and third anniversaries of the grant date.

SEC source: 0001628280-25-008683 · wk-form4_1740691231.xml · nonDerivative · entry 2

Wilkinson Kara R. · CIK 0001852543 · Ex. VP and President, NNS

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,598.688

F1 · shares: Shares withheld by the issuer for the payment of withholding taxes on restricted stock that vested on February 26, 2025.

SEC source: 0001628280-25-008683 · wk-form4_1740691231.xml · nonDerivative · entry 1

Wilkinson Kara R. · CIK 0001852543 · Ex. VP and President, NNS

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,781.337

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: 0001628280-25-008671 · wk-form4_1740691144.xml · derivative · entry 4

Boudreaux Chad N. · CIK 0001808160 · Ex VP & Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,744.003

Underlying: Common Stock · 404.985 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: Each Restricted Stock Right ("RSR") represents a contingent right to receive an equivalent number of shares of Company common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock. The RSRs were granted under the 2022 Long-Term Incentive Stock Plan on 2/26/24 and vest ratably in three equal installments upon each of the first, second and third anniversaries of the grant date.

F2 · derivative.exercise_date: Each Restricted Stock Right ("RSR") represents a contingent right to receive an equivalent number of shares of Company common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock. The RSRs were granted under the 2022 Long-Term Incentive Stock Plan on 2/26/24 and vest ratably in three equal installments upon each of the first, second and third anniversaries of the grant date.

F2 · derivative.expiration_date: Each Restricted Stock Right ("RSR") represents a contingent right to receive an equivalent number of shares of Company common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock. The RSRs were granted under the 2022 Long-Term Incentive Stock Plan on 2/26/24 and vest ratably in three equal installments upon each of the first, second and third anniversaries of the grant date.

SEC source: 0001628280-25-008671 · wk-form4_1740691144.xml · nonDerivative · entry 2

Boudreaux Chad N. · CIK 0001808160 · Ex VP & Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,193.212

F1 · shares: Shares withheld by the issuer for the payment of withholding taxes on restricted stock that vested on February 26, 2025.

SEC source: 0001628280-25-008671 · wk-form4_1740691144.xml · nonDerivative · entry 1

Boudreaux Chad N. · CIK 0001808160 · Ex VP & Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,375.861

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: 0001628280-25-008663 · wk-form4_1740691071.xml · derivative · entry 3

Boykin Jennifer R. · CIK 0001706050 · Executive VP, Special Projects

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 812.003

Underlying: Common Stock · 404.985 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: Each Restricted Stock Right ("RSR") represents a contingent right to receive an equivalent number of shares of Company common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock. The RSRs were granted under the 2022 Long-Term Incentive Stock Plan on 2/26/24 and vest ratably in three equal installments upon each of the first, second and third anniversaries of the grant date.

F2 · derivative.exercise_date: Each Restricted Stock Right ("RSR") represents a contingent right to receive an equivalent number of shares of Company common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock. The RSRs were granted under the 2022 Long-Term Incentive Stock Plan on 2/26/24 and vest ratably in three equal installments upon each of the first, second and third anniversaries of the grant date.

F2 · derivative.expiration_date: Each Restricted Stock Right ("RSR") represents a contingent right to receive an equivalent number of shares of Company common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock. The RSRs were granted under the 2022 Long-Term Incentive Stock Plan on 2/26/24 and vest ratably in three equal installments upon each of the first, second and third anniversaries of the grant date.

SEC source: 0001628280-25-008663 · wk-form4_1740691071.xml · nonDerivative · entry 2

Boykin Jennifer R. · CIK 0001706050 · Executive VP, Special Projects

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,863.124

F1 · shares: Shares withheld by the issuer for the payment of withholding taxes on restricted stock that vested on February 26, 2025.

SEC source: 0001628280-25-008663 · wk-form4_1740691071.xml · nonDerivative · entry 1

Boykin Jennifer R. · CIK 0001706050 · Executive VP, Special Projects

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,045.773

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: 0001628280-25-008679 · wk-form4_1740691208.xml · derivative · entry 4

Green Edgar A III · CIK 0001691442 · Ex VP, Pres. HII Mission Tech

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,477.003

Underlying: Common Stock · 404.985 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: Each Restricted Stock Right ("RSR") represents a contingent right to receive an equivalent number of shares of Company common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock. The RSRs were granted under the 2022 Long-Term Incentive Stock Plan on 2/26/24 and vest ratably in three equal installments upon each of the first, second and third anniversaries of the grant date.

F2 · derivative.exercise_date: Each Restricted Stock Right ("RSR") represents a contingent right to receive an equivalent number of shares of Company common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock. The RSRs were granted under the 2022 Long-Term Incentive Stock Plan on 2/26/24 and vest ratably in three equal installments upon each of the first, second and third anniversaries of the grant date.

F2 · derivative.expiration_date: Each Restricted Stock Right ("RSR") represents a contingent right to receive an equivalent number of shares of Company common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock. The RSRs were granted under the 2022 Long-Term Incentive Stock Plan on 2/26/24 and vest ratably in three equal installments upon each of the first, second and third anniversaries of the grant date.

SEC source: 0001628280-25-008679 · wk-form4_1740691208.xml · nonDerivative · entry 2

Green Edgar A III · CIK 0001691442 · Ex VP, Pres. HII Mission Tech

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,256.187

F1 · shares: Shares withheld by the issuer for the payment of withholding taxes on restricted stock that vested on February 26, 2025.

SEC source: 0001628280-25-008679 · wk-form4_1740691208.xml · nonDerivative · entry 1

Green Edgar A III · CIK 0001691442 · Ex VP, Pres. HII Mission Tech

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,438.836

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: 0001628280-25-008674 · wk-form4_1740691165.xml · nonDerivative · entry 1

WELCH JOHN K · CIK 0001222207 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,545

F1 · shares: Represents the weighted average purchase price of $174.923 rounded to the nearest hundredth. The highest price at which the shares were purchased was $175.245 and the lowest price at which the shares were purchased was $174.69. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote in this Form 4.

SEC source: 0001628280-25-008676 · wk-form4_1740691187.xml · derivative · entry 3

Soong Christopher W. · CIK 0001971852 · Ex VP & CIO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,489.3

Underlying: Common Stock · 211.65 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: Each Restricted Stock Right ("RSR") represents a contingent right to receive an equivalent number of shares of Company common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock. The RSRs were granted under the 2022 Long-Term Incentive Stock Plan on 2/26/24 and vest ratably in three equal installments upon each of the first, second and third anniversaries of the grant date.

F2 · derivative.exercise_date: Each Restricted Stock Right ("RSR") represents a contingent right to receive an equivalent number of shares of Company common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock. The RSRs were granted under the 2022 Long-Term Incentive Stock Plan on 2/26/24 and vest ratably in three equal installments upon each of the first, second and third anniversaries of the grant date.

F2 · derivative.expiration_date: Each Restricted Stock Right ("RSR") represents a contingent right to receive an equivalent number of shares of Company common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock. The RSRs were granted under the 2022 Long-Term Incentive Stock Plan on 2/26/24 and vest ratably in three equal installments upon each of the first, second and third anniversaries of the grant date.

SEC source: 0001628280-25-008676 · wk-form4_1740691187.xml · nonDerivative · entry 2

Soong Christopher W. · CIK 0001971852 · Ex VP & CIO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,825.044

F1 · shares: Shares withheld by the issuer for the payment of withholding taxes on restricted stock that vested on February 26, 2025.

SEC source: 0001628280-25-008676 · wk-form4_1740691187.xml · nonDerivative · entry 1

Soong Christopher W. · CIK 0001971852 · Ex VP & CIO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,920.499

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: 0001628280-25-008672 · wk-form4_1740691155.xml · derivative · entry 5

Kastner Christopher D · CIK 0001569904 · Director · Director, President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,693.127

Underlying: Common Stock · 2,293.554 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: Each Restricted Stock Right ("RSR") represents a contingent right to receive an equivalent number of shares of Company common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock. The RSRs were granted under the 2022 Long-Term Incentive Stock Plan ("LTISP") on 2/26/24 and vest ratably in three equal installments upon each of the first, second and third anniversaries of the grant date.

F2 · derivative.exercise_date: Each Restricted Stock Right ("RSR") represents a contingent right to receive an equivalent number of shares of Company common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock. The RSRs were granted under the 2022 Long-Term Incentive Stock Plan ("LTISP") on 2/26/24 and vest ratably in three equal installments upon each of the first, second and third anniversaries of the grant date.

F2 · derivative.expiration_date: Each Restricted Stock Right ("RSR") represents a contingent right to receive an equivalent number of shares of Company common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock. The RSRs were granted under the 2022 Long-Term Incentive Stock Plan ("LTISP") on 2/26/24 and vest ratably in three equal installments upon each of the first, second and third anniversaries of the grant date.

SEC source: 0001628280-25-008672 · wk-form4_1740691155.xml · nonDerivative · entry 2

Kastner Christopher D · CIK 0001569904 · Director · Director, President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 30,449.065

F1 · shares: Shares withheld by issuer for the payment of withholding taxes on restricted stock that vested on February 26, 2025.

SEC source: 0001628280-25-008672 · wk-form4_1740691155.xml · nonDerivative · entry 1

Kastner Christopher D · CIK 0001569904 · Director · Director, President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 31,483.458

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: 0001628280-25-008666 · wk-form4_1740691093.xml · derivative · entry 3

Schuck Nicolas G · CIK 0001651056 · Corp VP, Controller & CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,099.176

Underlying: Common Stock · 149.581 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: Each Restricted Stock Right ("RSR") represents a contingent right to receive an equivalent number of shares of Company common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock. The RSRs were granted under the 2022 Long-Term Incentive Stock Plan on 2/26/24 and vest ratably in three equal installments upon each of the first, second and third anniversaries of the grant date.

F2 · derivative.exercise_date: Each Restricted Stock Right ("RSR") represents a contingent right to receive an equivalent number of shares of Company common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock. The RSRs were granted under the 2022 Long-Term Incentive Stock Plan on 2/26/24 and vest ratably in three equal installments upon each of the first, second and third anniversaries of the grant date.

F2 · derivative.expiration_date: Each Restricted Stock Right ("RSR") represents a contingent right to receive an equivalent number of shares of Company common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock. The RSRs were granted under the 2022 Long-Term Incentive Stock Plan on 2/26/24 and vest ratably in three equal installments upon each of the first, second and third anniversaries of the grant date.

SEC source: 0001628280-25-008666 · wk-form4_1740691093.xml · nonDerivative · entry 2

Schuck Nicolas G · CIK 0001651056 · Corp VP, Controller & CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,634.132

F1 · shares: Shares withheld by the issuer for the payment of withholding taxes on restricted stock that vested on February 26, 2025.

SEC source: 0001628280-25-008666 · wk-form4_1740691093.xml · nonDerivative · entry 1

Schuck Nicolas G · CIK 0001651056 · Corp VP, Controller & CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,701.594

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: 0001628280-25-008668 · wk-form4_1740691113.xml · derivative · entry 3

Stiehle Thomas E. · CIK 0001846302 · Ex. VP and CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,256.25

Underlying: Common Stock · 529.126 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: Each Restricted Stock Right ("RSR") represents a contingent right to receive an equivalent number of shares of Company common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock. The RSRs were granted under the 2022 Long-Term Incentive Stock Plan on 2/26/24 and vest ratably in three equal installments upon each of the first, second and third anniversaries of the grant date.

F2 · derivative.exercise_date: Each Restricted Stock Right ("RSR") represents a contingent right to receive an equivalent number of shares of Company common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock. The RSRs were granted under the 2022 Long-Term Incentive Stock Plan on 2/26/24 and vest ratably in three equal installments upon each of the first, second and third anniversaries of the grant date.

F2 · derivative.expiration_date: Each Restricted Stock Right ("RSR") represents a contingent right to receive an equivalent number of shares of Company common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock. The RSRs were granted under the 2022 Long-Term Incentive Stock Plan on 2/26/24 and vest ratably in three equal installments upon each of the first, second and third anniversaries of the grant date.

SEC source: 0001628280-25-008668 · wk-form4_1740691113.xml · nonDerivative · entry 2

Stiehle Thomas E. · CIK 0001846302 · Ex. VP and CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,934.578

F1 · shares: Shares withheld by the issuer for the payment of withholding taxes on restricted stock that vested on February 26, 2025.

SEC source: 0001628280-25-008668 · wk-form4_1740691113.xml · nonDerivative · entry 1

Stiehle Thomas E. · CIK 0001846302 · Ex. VP and CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,173.214

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: 0001628280-25-008664 · wk-form4_1740691082.xml · derivative · entry 3

Chewning Eric D. · CIK 0001964855 · Ex VP, Strategy & Development

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,377.354

Underlying: Common Stock · 299.159 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: Each Restricted Stock Right ("RSR") represents a contingent right to receive an equivalent number of shares of Company common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock. The RSRs were granted under the 2022 Long-Term Incentive Stock Plan on 2/26/24 and vest ratably in three equal installments upon each of the first, second and third anniversaries of the grant date.

F2 · derivative.exercise_date: Each Restricted Stock Right ("RSR") represents a contingent right to receive an equivalent number of shares of Company common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock. The RSRs were granted under the 2022 Long-Term Incentive Stock Plan on 2/26/24 and vest ratably in three equal installments upon each of the first, second and third anniversaries of the grant date.

F2 · derivative.expiration_date: Each Restricted Stock Right ("RSR") represents a contingent right to receive an equivalent number of shares of Company common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock. The RSRs were granted under the 2022 Long-Term Incentive Stock Plan on 2/26/24 and vest ratably in three equal installments upon each of the first, second and third anniversaries of the grant date.

SEC source: 0001628280-25-008664 · wk-form4_1740691082.xml · nonDerivative · entry 2

Chewning Eric D. · CIK 0001964855 · Ex VP, Strategy & Development

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 193.256

F1 · shares: Shares withheld by the issuer for the payment of withholding taxes on restricted stock that vested on February 26, 2025.

SEC source: 0001628280-25-008664 · wk-form4_1740691082.xml · nonDerivative · entry 1

Chewning Eric D. · CIK 0001964855 · Ex VP, Strategy & Development

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 299.159

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: 0001628280-25-007797 · wk-form4_1740520240.xml · derivative · entry 3

Harris Paul C. · CIK 0001918481 · Ex VP & Chief Sustainability

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,275.213

Underlying: Common Stock · 799 shares

Expires not disclosed

F3 · derivative.exercise_price: Each restricted stock rights ("RSR") represents a contingent right to receive an equivalent number of shares of Company common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock. The RSRs were granted under the 2022 Long-Term Incentive Stock Plan on 2/24/25 and vest ratably in three equal installments upon each of the first, second and third anniversaries of the grant date.

F3 · shares: Each restricted stock rights ("RSR") represents a contingent right to receive an equivalent number of shares of Company common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock. The RSRs were granted under the 2022 Long-Term Incentive Stock Plan on 2/24/25 and vest ratably in three equal installments upon each of the first, second and third anniversaries of the grant date.

F3 · derivative.exercise_date: Each restricted stock rights ("RSR") represents a contingent right to receive an equivalent number of shares of Company common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock. The RSRs were granted under the 2022 Long-Term Incentive Stock Plan on 2/24/25 and vest ratably in three equal installments upon each of the first, second and third anniversaries of the grant date.

F3 · derivative.expiration_date: Each restricted stock rights ("RSR") represents a contingent right to receive an equivalent number of shares of Company common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock. The RSRs were granted under the 2022 Long-Term Incentive Stock Plan on 2/24/25 and vest ratably in three equal installments upon each of the first, second and third anniversaries of the grant date.

SEC source: 0001628280-25-007797 · wk-form4_1740520240.xml · nonDerivative · entry 2

Harris Paul C. · CIK 0001918481 · Ex VP & Chief Sustainability

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,477.344

F2 · shares: Shares withheld by issuer for payment of withholding taxes on RPSRs.

SEC source: 0001628280-25-007797 · wk-form4_1740520240.xml · nonDerivative · entry 1

Harris Paul C. · CIK 0001918481 · Ex VP & Chief Sustainability

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,622.98

F1 · shares: Shares issued upon settlement of restricted performance stock rights ("RPSRs") for the performance period that ended on 12/31/2024.

SEC source: 0001628280-25-007801 · wk-form4_1740520269.xml · derivative · entry 4

Blanchette Brian D. · CIK 0002049633 · Ex VP and President, Ingalls

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,946.861

Underlying: Restricted Stock Rights · 2,665 shares

Expires not disclosed

F3 · derivative.exercise_price: Each restricted stock rights ("RSR") represents a contingent right to receive an equivalent number of shares of Company common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock. The RSRs were granted under the 2022 Long-Term Incentive Stock Plan on 2/24/25 and vest ratably in three equal installments upon each of the first, second and third anniversaries of the grant date.

F3 · shares: Each restricted stock rights ("RSR") represents a contingent right to receive an equivalent number of shares of Company common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock. The RSRs were granted under the 2022 Long-Term Incentive Stock Plan on 2/24/25 and vest ratably in three equal installments upon each of the first, second and third anniversaries of the grant date.

F3 · derivative.exercise_date: Each restricted stock rights ("RSR") represents a contingent right to receive an equivalent number of shares of Company common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock. The RSRs were granted under the 2022 Long-Term Incentive Stock Plan on 2/24/25 and vest ratably in three equal installments upon each of the first, second and third anniversaries of the grant date.

F3 · derivative.expiration_date: Each restricted stock rights ("RSR") represents a contingent right to receive an equivalent number of shares of Company common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock. The RSRs were granted under the 2022 Long-Term Incentive Stock Plan on 2/24/25 and vest ratably in three equal installments upon each of the first, second and third anniversaries of the grant date.

SEC source: 0001628280-25-007801 · wk-form4_1740520269.xml · nonDerivative · entry 2

Blanchette Brian D. · CIK 0002049633 · Ex VP and President, Ingalls

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,162.183

F2 · shares: Shares withheld by issuer for payment of withholding taxes on RPSRs.

SEC source: 0001628280-25-007801 · wk-form4_1740520269.xml · nonDerivative · entry 1

Blanchette Brian D. · CIK 0002049633 · Ex VP and President, Ingalls

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,831.599

F1 · shares: Shares issued upon settlement of restricted performance stock rights ("RPSRs") for the performance period that ended on 12/31/2024.

SEC source: 0001628280-25-007800 · wk-form4_1740520259.xml · derivative · entry 2

Powell Stephen R. · CIK 0002049877 · Corp VP & Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 825.598

Underlying: Restricted Stock Rights · 675 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Restricted Stock Right ("RSR") represents a contingent right to receive an equivalent number of shares of Company common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock. The RSRs were granted under the 2022 Long-Term Incentive Stock Plan on 2/24/25 and vest ratably in three equal installments upon each of the first, second and third anniversaries of the grant date.

F1 · shares: Each Restricted Stock Right ("RSR") represents a contingent right to receive an equivalent number of shares of Company common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock. The RSRs were granted under the 2022 Long-Term Incentive Stock Plan on 2/24/25 and vest ratably in three equal installments upon each of the first, second and third anniversaries of the grant date.

F1 · derivative.exercise_date: Each Restricted Stock Right ("RSR") represents a contingent right to receive an equivalent number of shares of Company common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock. The RSRs were granted under the 2022 Long-Term Incentive Stock Plan on 2/24/25 and vest ratably in three equal installments upon each of the first, second and third anniversaries of the grant date.

F1 · derivative.expiration_date: Each Restricted Stock Right ("RSR") represents a contingent right to receive an equivalent number of shares of Company common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock. The RSRs were granted under the 2022 Long-Term Incentive Stock Plan on 2/24/25 and vest ratably in three equal installments upon each of the first, second and third anniversaries of the grant date.