DENAULT LEO P

SEC source: 0001281986-26-000024 · wk-form4_1790972644.xml · nonDerivative · entry 1

DENAULT LEO P · CIK 0001281986 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,096.168

F1 · shares: Shares of common stock deferred into stock unit account pursuant to Huntington Ingalls Industries, Inc. 2022 Long-Term Incentive Stock Plan in an exempt transaction pursuant to Rule 16b-3.

SEC source: 0001281986-26-000022 · wk-form4_1790887746.xml · nonDerivative · entry 1

DENAULT LEO P · CIK 0001281986 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,919.168

F1 · shares: Shares of common stock issued in lieu of cash pursuant to the Huntington Ingalls Industries, Inc. 2022 Long-Term Incentive Stock Plan ("Plan") in an exempt transaction pursuant to Rule 16b-3.

SEC source: 0001628280-26-064523 · wk-form4_1790972179.xml · derivative · entry 1

DENAULT LEO P · CIK 0001281986 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,654.55

Underlying: Common Stock · 2,653.06 shares

Expires not disclosed

F1 · derivative.exercise_price: Each share of phantom stock is the economic equivalent of one share of common stock and becomes payable in cash upon the reporting person's termination of service as a director.

F2 · shares: Phantom stock acquired upon deferral of compensation under the Deferred Compensation Plan for Non-Employee Directors, exempt under Rule 16b-3(d).

F1 · derivative.exercise_date: Each share of phantom stock is the economic equivalent of one share of common stock and becomes payable in cash upon the reporting person's termination of service as a director.

F1 · derivative.expiration_date: Each share of phantom stock is the economic equivalent of one share of common stock and becomes payable in cash upon the reporting person's termination of service as a director.

F3 · balance_after: This total reflects the acquisition of 31.33 units of phantom stock acquired on 7/15/2026 pursuant to a dividend reinvestment feature of the Deferred Compensation Plan for Non-Employee Directors.

SEC source: 0001281986-26-000020 · wk-form4_1789416800.xml · nonDerivative · entry 1

DENAULT LEO P · CIK 0001281986 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,767.168

F1 · shares: Pursuant to the Huntington Ingalls Industries, Inc. 2012 and 2022 Long-Term Incentive Stock Plan (together, the "LTISPs"), dividend equivalents are credited on each director stock unit ("SUA") held by the Reporting Person following the payment of the Company's quarterly cash dividend. Each SUA represents a right to receive one share of Company common stock, which will generally become payable within 30 days following the date a non-employee director ceases to provide services as a member of the board of directors. The number of dividend equivalents acquired by the Reporting Person under the LTISPs is calculated by dividing the aggregate amount of the dividend paid on the total number of SUAs held by the Reporting Person by the closing price of a share of Company common stock on the dividend payment date.

SEC source: 0001281986-26-000018 · wk-form4_1783023366.xml · nonDerivative · entry 1

DENAULT LEO P · CIK 0001281986 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,743.763

F1 · shares: Shares of common stock deferred into stock unit account pursuant to Huntington Ingalls Industries, Inc. 2022 Long-Term Incentive Stock Plan in an exempt transaction pursuant to Rule 16b-3.

SEC source: 0001628280-26-046543 · wk-form4_1782936942.xml · derivative · entry 1

DENAULT LEO P · CIK 0001281986 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,970.16

Underlying: Common Stock · 1,932.22 shares

Expires not disclosed

F1 · derivative.exercise_price: Each share of phantom stock is the economic equivalent of one share of common stock and becomes payable in cash upon the reporting person's termination of service as a director.

F2 · shares: Phantom stock acquired upon deferral of compensation under the Deferred Compensation Plan for Non-Employee Directors, exempt under Rule 16b-3(d).

F1 · derivative.exercise_date: Each share of phantom stock is the economic equivalent of one share of common stock and becomes payable in cash upon the reporting person's termination of service as a director.

F1 · derivative.expiration_date: Each share of phantom stock is the economic equivalent of one share of common stock and becomes payable in cash upon the reporting person's termination of service as a director.

F3 · balance_after: This total includes 25.91 units of phantom stock acquired on 4/15/2026 pursuant to a dividend reinvestment feature of the Deferred Compensation Plan for Non-Employee Directors.

SEC source: 0001281986-26-000016 · wk-form4_1782936909.xml · nonDerivative · entry 1

DENAULT LEO P · CIK 0001281986 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,569.763

F1 · shares: Shares of common stock issued in lieu of cash pursuant to the Huntington Ingalls Industries, Inc. 2022 Long-Term Incentive Stock Plan ("Plan") in an exempt transaction pursuant to Rule 16b-3.

SEC source: 0001281986-26-000014 · wk-form4_1781554850.xml · nonDerivative · entry 1

DENAULT LEO P · CIK 0001281986 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,424.763

F1 · shares: Pursuant to the Huntington Ingalls Industries, Inc. 2012 and 2022 Long-Term Incentive Stock Plan (together, the "LTISPs"), dividend equivalents are credited on each director stock unit ("SUA") held by the Reporting Person following the payment of the Company's quarterly cash dividend. Each SUA represents a right to receive one share of Company common stock, which will generally become payable within 30 days following the date a non-employee director ceases to provide services as a member of the board of directors. The number of dividend equivalents acquired by the Reporting Person under the LTISPs is calculated by dividing the aggregate amount of the dividend paid on the total number of SUAs held by the Reporting Person by the closing price of a share of Company common stock on the dividend payment date.

SEC source: 0001628280-26-038100 · wk-form4_1779826690.xml · nonDerivative · entry 1

DENAULT LEO P · CIK 0001281986 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 27,923.45

F1 · shares: Restricted Stock Units (RSUs) granted under the PG&E Corporation 2021 Long Term Incentive Plan (LTIP). RSUs are payable in shares of PG&E Corporation common stock on a one-for-one basis. As described in the LTIP, RSUs vest upon the earliest of one year from the date of grant; the last day of a director's elected term; a director's death, disability, or termination following a change in control; or a change in control in which the acquiror does not assume, continue, or substitute the award.

F2 · balance_after: This total reflects the acquisition of 20.34 RSUs on 7/15/2025, 15.88 RSUs on 10/15/2025, 33.62 RSUs on 1/15/2026, and 30.61 RSUs on 4/15/2026 pursuant to a dividend reinvestment feature of the PG&E Corporation 2021 LTIP.

SEC source: 0001281986-26-000011 · wk-form4_1775226108.xml · nonDerivative · entry 1

DENAULT LEO P · CIK 0001281986 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,404.344

F1 · shares: Shares of common stock deferred into stock unit account pursuant to Huntington Ingalls Industries, Inc. 2022 Long-Term Incentive Stock Plan in an exempt transaction pursuant to Rule 16b-3.

SEC source: 0001628280-26-022803 · wk-form4_1775074544.xml · derivative · entry 1

DENAULT LEO P · CIK 0001281986 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,012.03

Underlying: Common Stock · 1,849.74 shares

Expires not disclosed

F1 · derivative.exercise_price: Each share of phantom stock is the economic equivalent of one share of common stock and becomes payable in cash upon the reporting person's termination of service as a director.

F2 · shares: Phantom stock acquired upon deferral of compensation under the Deferred Compensation Plan for Non-Employee Directors, exempt under Rule 16b-3(d).

F1 · derivative.exercise_date: Each share of phantom stock is the economic equivalent of one share of common stock and becomes payable in cash upon the reporting person's termination of service as a director.

F1 · derivative.expiration_date: Each share of phantom stock is the economic equivalent of one share of common stock and becomes payable in cash upon the reporting person's termination of service as a director.

F3 · balance_after: This total includes 22.62 units of phantom stock acquired on 1/15/2026 pursuant to a dividend reinvestment feature of the Deferred Compensation Plan for Non-Employee Directors.

SEC source: 0001281986-26-000008 · wk-form4_1775074846.xml · nonDerivative · entry 1

DENAULT LEO P · CIK 0001281986 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,281.344

F1 · shares: Shares of common stock issued in lieu of cash pursuant to the Huntington Ingalls Industries, Inc. 2022 Long-Term Incentive Stock Plan ("Plan") in an exempt transaction pursuant to Rule 16b-3.

SEC source: 0001281986-26-000006 · wk-form4_1773692129.xml · nonDerivative · entry 1

DENAULT LEO P · CIK 0001281986 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,175.344

F1 · shares: Pursuant to the Huntington Ingalls Industries, Inc. 2012 and 2022 Long-Term Incentive Stock Plan (together, the "LTISPs"), dividend equivalents are credited on each director stock unit ("SUA") held by the Reporting Person following the payment of the Company's quarterly cash dividend. Each SUA represents a right to receive one share of Company common stock, which will generally become payable within 30 days following the date a non-employee director ceases to provide services as a member of the board of directors. The number of dividend equivalents acquired by the Reporting Person under the LTISPs is calculated by dividing the aggregate amount of the dividend paid on the total number of SUAs held by the Reporting Person by the closing price of a share of Company common stock on the dividend payment date.

SEC source: 0001281986-26-000004 · wk-form4_1767647821.xml · nonDerivative · entry 1

DENAULT LEO P · CIK 0001281986 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,161.529

F1 · shares: Shares of common stock deferred into stock unit account pursuant to Huntington Ingalls Industries, Inc. 2022 Long-Term Incentive Stock Plan in an exempt transaction pursuant to Rule 16b-3.

SEC source: 0001281986-26-000002 · wk-form4_1767388961.xml · nonDerivative · entry 1

DENAULT LEO P · CIK 0001281986 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,022.529

F1 · shares: Shares of common stock issued in lieu of cash pursuant to the Huntington Ingalls Industries, Inc. 2022 Long-Term Incentive Stock Plan ("Plan") in an exempt transaction pursuant to Rule 16b-3.

SEC source: 0001628280-26-000429 · wk-form4_1767647706.xml · derivative · entry 1

DENAULT LEO P · CIK 0001281986 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,139.66

Underlying: Common Stock · 2,022.4 shares

Expires not disclosed

F1 · derivative.exercise_price: Each share of phantom stock is the economic equivalent of one share of common stock and becomes payable in cash upon the reporting person's termination of service as a director.

F2 · shares: Phantom stock acquired upon deferral of compensation under the Deferred Compensation Plan for Non-Employee Directors, exempt under Rule 16b-3(d).

F1 · derivative.exercise_date: Each share of phantom stock is the economic equivalent of one share of common stock and becomes payable in cash upon the reporting person's termination of service as a director.

F1 · derivative.expiration_date: Each share of phantom stock is the economic equivalent of one share of common stock and becomes payable in cash upon the reporting person's termination of service as a director.

F3 · balance_after: This total includes 7.66 units of phantom stock acquired on 10/15/2025 pursuant to a dividend reinvestment feature of the Deferred Compensation Plan for Non-Employee Directors.

SEC source: 0001281986-25-000008 · wk-form4_1765833677.xml · nonDerivative · entry 1

DENAULT LEO P · CIK 0001281986 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,910.529

F1 · shares: Pursuant to the Huntington Ingalls Industries, Inc. 2012 and 2022 Long-Term Incentive Stock Plan (together, the "LTISPs"), dividend equivalents are credited on each director stock unit ("SUA") held by the Reporting Person following the payment of the Company's quarterly cash dividend. Each SUA represents a right to receive one share of Company common stock, which will generally become payable within 30 days following the date a non-employee director ceases to provide services as a member of the board of directors. The number of dividend equivalents acquired by the Reporting Person under the LTISPs is calculated by dividing the aggregate amount of the dividend paid on the total number of SUAs held by the Reporting Person by the closing price of a share of Company common stock on the dividend payment date.

SEC source: 0001281986-25-000006 · wk-form4_1759436374.xml · nonDerivative · entry 2

DENAULT LEO P · CIK 0001281986 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,894.09

F2 · shares: Shares of common stock deferred into stock unit account pursuant to the Plan in an exempt transaction pursuant to Rule 16b-3.

SEC source: 0001628280-25-043743 · wk-form4_1759437035.xml · derivative · entry 1

DENAULT LEO P · CIK 0001281986 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,109.6

Underlying: Common Stock · 2,155.17 shares

Expires not disclosed

F1 · derivative.exercise_price: Each share of phantom stock is the economic equivalent of one share of common stock and becomes payable in cash following the reporting person's termination of service as a director.

F2 · shares: Phantom stock acquired upon deferral of compensation under the Deferred Compensation Plan for Non-Employee Directors, exempt under Rule 16b-3(d).

F1 · derivative.exercise_date: Each share of phantom stock is the economic equivalent of one share of common stock and becomes payable in cash following the reporting person's termination of service as a director.

F1 · derivative.expiration_date: Each share of phantom stock is the economic equivalent of one share of common stock and becomes payable in cash following the reporting person's termination of service as a director.

F3 · balance_after: This total includes 5.67 units of phantom stock acquired on 7/15/2025 pursuant to a dividend reinvestment feature of the Deferred Compensation Plan for Non-Employee Directors.

SEC source: 0001281986-25-000006 · wk-form4_1759436374.xml · nonDerivative · entry 1

DENAULT LEO P · CIK 0001281986 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,750.09

F1 · shares: Shares of common stock issued in lieu of cash pursuant to the Huntington Ingalls Industries, Inc. 2022 Long-Term Incentive Stock Plan ("Plan") in an exempt transaction pursuant to Rule 16b-3.

SEC source: 0001281986-25-000005 · wk-form4_1757967196.xml · nonDerivative · entry 1

DENAULT LEO P · CIK 0001281986 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,618.09

F1 · shares: Pursuant to the Huntington Ingalls Industries, Inc. 2012 and 2022 Long-Term Incentive Stock Plan (together, the "LTISPs"), dividend equivalents are credited on each director stock unit ("SUA") held by the Reporting Person following the payment of the Company's quarterly cash dividend. Each SUA represents a right to receive one share of Company common stock, which will generally become payable within 30 days following the date a non-employee director ceases to provide services as a member of the board of directors. The number of dividend equivalents acquired by the Reporting Person under the LTISPs is calculated by dividing the aggregate amount of the dividend paid on the total number of SUAs held by the Reporting Person by the closing price of a share of Company common stock on the dividend payment date.

SEC source: 0001628280-25-033991 · wk-form4_1751487638.xml · nonDerivative · entry 2

DENAULT LEO P · CIK 0001281986 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,600.397

F2 · shares: Shares of common stock deferred into stock unit account pursuant to the Plan in an exempt transaction pursuant to Rule 16b-3.

SEC source: 0001004980-25-000123 · wk-form4_1751489375.xml · derivative · entry 1

DENAULT LEO P · CIK 0001281986 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,948.76

Underlying: Common Stock · 2,152.08 shares

Expires not disclosed

F1 · derivative.exercise_price: Each share of phantom stock is the economic equivalent of one share of common stock and becomes payable in cash following the reporting person's termination of service as a director.

F2 · shares: Phantom stock acquired upon deferral of compensation under the Deferred Compensation Plan for Non-Employee Directors, exempt under Rule 16b-3(d).

F1 · derivative.exercise_date: Each share of phantom stock is the economic equivalent of one share of common stock and becomes payable in cash following the reporting person's termination of service as a director.

F1 · derivative.expiration_date: Each share of phantom stock is the economic equivalent of one share of common stock and becomes payable in cash following the reporting person's termination of service as a director.

F3 · balance_after: This total includes 1.16 units of phantom stock acquired on 4/15/2025 pursuant to a dividend reinvestment feature of the Deferred Compensation Plan for Non-Employee Directors.

SEC source: 0001628280-25-033991 · wk-form4_1751487638.xml · nonDerivative · entry 1

DENAULT LEO P · CIK 0001281986 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,433.397

F1 · shares: Shares of common stock issued in lieu of cash pursuant to the Huntington Ingalls Industries, Inc. 2022 Long-Term Incentive Stock Plan ("Plan") in an exempt transaction pursuant to Rule 16b-3.

SEC source: 0001628280-25-031572 · wk-form4_1750105029.xml · nonDerivative · entry 1

DENAULT LEO P · CIK 0001281986 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,276.397

F1 · shares: Pursuant to the Huntington Ingalls Industries, Inc. 2012 and 2022 Long-Term Incentive Stock Plan (together, the "LTISPs"), dividend equivalents are credited on each director stock unit ("DSU") held by the Reporting Person following the payment of the Company's quarterly cash dividend. Each DSU represents a right to receive one share of Company common stock, which will generally become payable within 30 days following the date a non-employee director ceases to provide services as a member of the board of directors. The number of dividend equivalents acquired by the Reporting Person under the LTISPs is calculated by dividing the aggregate amount of the dividend paid on the total number of stock units ("SUAs") held by the Reporting Person by the closing price of a share of Company common stock on the dividend payment date.

SEC source: 0001004980-25-000109 · wk-form4_1748377804.xml · nonDerivative · entry 1

DENAULT LEO P · CIK 0001281986 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,875

F1 · shares: Restricted Stock Units (RSUs) granted under the PG&E Corporation 2021 Long Term Incentive Plan (LTIP). RSUs are payable in shares of PG&E Corporation common stock on a one-for-one basis. As described in the LTIP, RSUs vest upon the earliest of one year from the date of grant; the last day of a director's elected term; a director's death, disability, or termination following a change in control; or a change in control in which the acquiror does not assume, continue, or substitute the award.

SEC source: 0001628280-25-016041 · wk-form4_1743553512.xml · nonDerivative · entry 1

DENAULT LEO P · CIK 0001281986 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,257.501

F1 · shares: Shares of common stock deferred into stock unit account pursuant to Huntington Ingalls Industries, Inc. 2022 Long-Term Incentive Stock Plan, in an exempt transaction pursuant to Rule 16b-3.

SEC source: 0001628280-25-015928 · wk-form4_1743539993.xml · nonDerivative · entry 1

DENAULT LEO P · CIK 0001281986 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,053.501

F1 · shares: Shares of common stock issued in lieu of cash pursuant to the Huntington Ingalls Industries, Inc. 2022 Long-Term Incentive Stock Plan ("Plan") in an exempt transaction pursuant to Rule 16b-3.

SEC source: 0001004980-25-000055 · wk-form4_1743626302.xml · derivative · entry 1

DENAULT LEO P · CIK 0001281986 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 795.52

Underlying: Common Stock · 795.52 shares

Expires not disclosed

F1 · derivative.exercise_price: Each share of phantom stock is the economic equivalent of one share of common stock and becomes payable in cash upon the reporting person's termination of service as a director.

F2 · shares: Phantom stock acquired upon deferral of compensation under the Deferred Compensation Plan for Non-Employee Directors, exempt under Rule 16b-3(d).

F1 · derivative.exercise_date: Each share of phantom stock is the economic equivalent of one share of common stock and becomes payable in cash upon the reporting person's termination of service as a director.

F1 · derivative.expiration_date: Each share of phantom stock is the economic equivalent of one share of common stock and becomes payable in cash upon the reporting person's termination of service as a director.

SEC source: 0001628280-25-013129 · wk-form4_1742242644.xml · nonDerivative · entry 1

DENAULT LEO P · CIK 0001281986 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,867.501

F1 · shares: Pursuant to the Huntington Ingalls Industries, Inc. 2022 Long-Term Incentive Stock Plan (the "LTISP"), dividend equivalents are credited on each director stock unit ("DSU") held by the Reporting Person following the payment of the Company's quarterly cash dividend. Each DSU represents a right to receive one share of Company common stock, which will generally become payable within 30 days following the date a non-employee director ceases to provide services as a member of the board of directors. The number of dividend equivalents acquired by the Reporting Person under the LTISP is calculated by dividing the aggregate amount of the dividend paid on the total number of stock units held by the Reporting Person by the closing price of a share of Company common stock on the dividend payment date.

SEC source: 0001004980-25-000049 · wk-form4_1741811230.xml · nonDerivative · entry 1

DENAULT LEO P · CIK 0001281986 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,300

F1 · price: The price reported on Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $15.95 to $15.97, inclusive. For all transactions reported in this Form 4 utilizing a weighted average share price, 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 sold at each separate price with the ranges.

SEC source: 0001628280-25-000267 · wk-form4_1735939226.xml · nonDerivative · entry 1

DENAULT LEO P · CIK 0001281986 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,847.904

F1 · shares: Shares of common stock deferred into stock unit account pursuant to Huntington Ingalls Industries, Inc. 2022 Long-Term Incentive Stock Plan, in an exempt transaction pursuant to Rule 16b-3.

SEC source: 0001628280-25-000059 · wk-form4_1735852686.xml · nonDerivative · entry 1

DENAULT LEO P · CIK 0001281986 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,628.904

F1 · shares: Shares of common stock issued in lieu of cash pursuant to the Huntington Ingalls Industries, Inc. 2022 Long-Term Incentive Stock Plan ("Plan") in an exempt transaction pursuant to Rule 16b-3.

SEC source: 0001628280-24-051451 · wk-form4_1734385021.xml · nonDerivative · entry 1

DENAULT LEO P · CIK 0001281986 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,427.904

F1 · shares: Pursuant to the Huntington Ingalls Industries, Inc. 2012 and 2022 Long-Term Incentive Stock Plan (together, the "LTISPs"), dividend equivalents are credited on each director stock unit ("DSU") held by the Reporting Person following the payment of the Company's quarterly cash dividend. Each DSU represents a right to receive one share of Company common stock, which will generally become payable within 30 days following the date a non-employee director ceases to provide services as a member of the board of directors. The number of dividend equivalents acquired by the Reporting Person under the LTISPs is calculated by dividing the aggregate amount of the dividend paid on the total number of stock units ("SUAs") held by the Reporting Person by the closing price of a share of Company common stock on the dividend payment date.

SEC source: 0001628280-24-041899 · wk-form4_1727900343.xml · nonDerivative · entry 2

DENAULT LEO P · CIK 0001281986 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,410.964

F2 · shares: Shares of common stock deferred into stock unit account pursuant to the Plan in an exempt transaction pursuant to Rule 16b-3.

SEC source: 0001628280-24-041899 · wk-form4_1727900343.xml · nonDerivative · entry 1

DENAULT LEO P · CIK 0001281986 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,255.964

F1 · shares: Shares of common stock issued in lieu of cash pursuant to the Huntington Ingalls Industries, Inc. 2022 Long-Term Incentive Stock Plan ("Plan") in an exempt transaction pursuant to Rule 16b-3.

SEC source: 0001628280-24-040493 · wk-form4_1726518563.xml · nonDerivative · entry 1

DENAULT LEO P · CIK 0001281986 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,111.964

F1 · shares: Pursuant to the Huntington Ingalls Industries, Inc. 2012 and 2022 Long-Term Incentive Stock Plan (together, the "LTISPs"), dividend equivalents are credited on each director stock unit ("DSU") held by the Reporting Person following the payment of the Company's quarterly cash dividend. Each DSU represents a right to receive one share of Company common stock, which will generally become payable within 30 days following the date a non-employee director ceases to provide services as a member of the board of directors. The number of dividend equivalents acquired by the Reporting Person under the LTISPs is calculated by dividing the aggregate amount of the dividend paid on the total number of DSUs held by the Reporting Person by the closing price of a share of Company common stock on the dividend payment date.

SEC source: 0000950170-24-080611 · ownership.xml · nonDerivative · entry 2

DENAULT LEO P · CIK 0001281986 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 2,101.562

F3 · shares: Shares of common stock deferred into stock unit account pursuant to Huntington Ingalls Industries, Inc. 2022 Long-Term Incentive Stock Plan, in an exempt transaction pursuant to Rule 16b-3.

F2 · ownership.nature: Represents vested restricted stock units credited to the Reporting Person's account pursuant to Huntington Ingalls Industries, Inc.'s 2022 Long-Term Incentive Stock Plan. Each director stock unit represents a right to receive one share of Issuer common stock (or cash equivalent value), which will generally become payable within 30 days following the date a non-employee director ceases to provide services as a member of the board of directors.

SEC source: 0000950170-24-080611 · ownership.xml · nonDerivative · entry 1

DENAULT LEO P · CIK 0001281986 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 1,934.562

F1 · shares: Shares of common stock issued in lieu of cash pursuant to the Huntington Ingalls Industries, Inc. 2022 Long-Term Incentive Stock Plan ("Plan"), in an exempt transaction pursuant to Rule 16b-3.

F2 · ownership.nature: Represents vested restricted stock units credited to the Reporting Person's account pursuant to Huntington Ingalls Industries, Inc.'s 2022 Long-Term Incentive Stock Plan. Each director stock unit represents a right to receive one share of Issuer common stock (or cash equivalent value), which will generally become payable within 30 days following the date a non-employee director ceases to provide services as a member of the board of directors.

SEC source: 0000950170-24-075162 · ownership.xml · nonDerivative · entry 1

DENAULT LEO P · CIK 0001281986 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 1,780.562

F1 · shares: Huntington Ingalls Industries, Inc. paid a cash dividend of $1.30 per share of common stock on June 14, 2024. Pursuant to the terms of the Huntington Ingalls Industries, Inc. 2022 Long-Term Incentive Stock Plan, shares of common stock representing the dividend were deferred into a stock unit account in a transaction exempt by Rule 16b-3.

F2 · ownership.nature: Represents vested restricted stock units credited to the Reporting Person's account pursuant to Huntington Ingalls Industries, Inc.'s 2022 Long-Term Incentive Stock Plan. Each director stock unit represents a right to receive one share of Issuer common stock (or cash equivalent value), which will generally become payable within 30 days following the date a non-employee director ceases to provide services as a member of the board of directors.

SEC source: 0000950170-24-040412 · ownership.xml · nonDerivative · entry 2

DENAULT LEO P · CIK 0001281986 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 1,770.909

F2 · ownership.nature: Represents vested restricted stock units credited to the Reporting Person's account pursuant to Huntington Ingalls Industries, Inc.'s 2012 and 2022 Long-Term Incentive Stock Plans. Each director stock unit represents a right to receive one share of Issuer common stock (or cash equivalent value), which will generally become payable within 30 days following the date a non-employee director ceases to provide services as a member of the board of directors.

SEC source: 0000950170-24-040412 · ownership.xml · nonDerivative · entry 1

DENAULT LEO P · CIK 0001281986 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 1,627.909

F1 · shares: Shares of common stock deferred into stock unit account pursuant to Huntington Ingalls Industries, Inc. 2022 Long-Term Incentive Stock Plan, in an exempt transaction pursuant to Rule 16b-3.

F2 · ownership.nature: Represents vested restricted stock units credited to the Reporting Person's account pursuant to Huntington Ingalls Industries, Inc.'s 2012 and 2022 Long-Term Incentive Stock Plans. Each director stock unit represents a right to receive one share of Issuer common stock (or cash equivalent value), which will generally become payable within 30 days following the date a non-employee director ceases to provide services as a member of the board of directors.

SEC source: 0000950170-24-030305 · ownership.xml · nonDerivative · entry 1

DENAULT LEO P · CIK 0001281986 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 1,497.909

F1 · shares: Huntington Ingalls Industries, Inc. paid a cash dividend of $1.30 per share of common stock on March 8, 2024. Pursuant to the terms of the Huntington Ingalls Industries, Inc. 2022 Long-Term Incentive Stock Plan, shares of common stock representing the dividend were deferred into a stock unit account in a transaction exempt by Rule 16b-3.

F2 · ownership.nature: Represents stock units credited to the Reporting Person's account pursuant to Huntington Ingalls Industries, Inc. 2022 Long-Term Stock Incentive Plan. Each director stock unit represents a right to receive one share of Issuer common stock (or cash equivalent value).

SEC source: 0000950170-24-002063 · ownership.xml · nonDerivative · entry 1

DENAULT LEO P · CIK 0001281986 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 1,491.3

F1 · shares: Shares of common stock deferred into stock unit account pursuant to Huntington Ingalls Industries, Inc. 2022 Long-Term Incentive Stock Plan, in an exempt transaction pursuant to Rule 16b-3.

F2 · ownership.nature: Represents stock units credited to the Reporting Person's account pursuant to Huntington Ingalls Industries, Inc. 2022 Long-Term Stock Incentive Plan. Each director stock unit represents a right to receive one share of Issuer common stock (or cash equivalent value).

SEC source: 0000950170-24-001094 · ownership.xml · nonDerivative · entry 1

DENAULT LEO P · CIK 0001281986 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 1,333.3

F1 · shares: Shares of common stock deferred into stock unit account pursuant to Huntington Ingalls Industries, Inc. 2022 Long-Term Incentive Stock Plan, in an exempt transaction pursuant to Rule 16b-3.

F2 · ownership.nature: Represents vested restricted stock units credited to the Reporting Person's account pursuant to Huntington Ingalls Industries, Inc.'s 2022 Long-Term Incentive Stock Plan. Each director stock unit represents a right to receive one share of Issuer common stock (or cash equivalent value), which will generally become payable within 30 days following the date a non-employee director ceases to provide services as a member of the board of directors.

SEC source: 0001209191-23-058336 · doc4.xml · nonDerivative · entry 1

DENAULT LEO P · CIK 0001281986 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote (2)

Disclosed balance after: 1,206.3

F1 · shares: Huntington Ingalls Industries, Inc. paid a cash dividend of $1.30 per share of common stock on December 8, 2023. Pursuant to the terms of the Huntington Ingalls Industries, Inc. 2022 Long-Term Incentive Stock Plan, shares of common stock representing the dividend were deferred into a stock unit account in a transaction exempt by Rule 16b-3.

F2 · ownership.nature: Represents vested restricted stock units credited to the Reporting Person's account pursuant to Huntington Ingalls Industries, Inc.'s 2022 Long-Term Incentive Stock Plan. Each director stock unit represents a right to receive one share of Issuer common stock (or cash equivalent value), which will generally become payable within 30 days following the date a non-employee director ceases to provide services as a member of the board of directors.

SEC source: 0001209191-23-052029 · doc4.xml · nonDerivative · entry 1

DENAULT LEO P · CIK 0001281986 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote (2)

Disclosed balance after: 1,199.981

F1 · shares: Shares of common stock issued in lieu of cash pursuant to the Huntington Ingalls Industries, Inc. 2022 Long-Term Incentive Stock Plan ("Plan"), in an exempt transaction pursuant to Rule 16b-3.

F2 · ownership.nature: Represents vested restricted stock units credited to the Reporting Person's account pursuant to Huntington Ingalls Industries, Inc.'s 2022 Long-Term Incentive Stock Plan. Each director stock unit represents a right to receive one share of Issuer common stock (or cash equivalent value), which will generally become payable within 30 days following the date a non-employee director ceases to provide services as a member of the board of directors.

SEC source: 0001209191-23-051442 · doc4.xml · nonDerivative · entry 1

DENAULT LEO P · CIK 0001281986 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote (2)

Disclosed balance after: 1,001.981

F1 · shares: Shares of common stock issued in lieu of cash pursuant to the Huntington Ingalls Industries, Inc. 2022 Long-Term Incentive Stock Plan ("Plan"), in an exempt transaction pursuant to Rule 16b-3.

F2 · ownership.nature: Represents vested restricted stock units credited to the Reporting Person's account pursuant to Huntington Ingalls Industries, Inc.'s 2022 Long-Term Incentive Stock Plan. Each director stock unit represents a right to receive one share of Issuer common stock (or cash equivalent value), which will generally become payable within 30 days following the date a non-employee director ceases to provide services as a member of the board of directors.

SEC source: 0001209191-23-049154 · doc4.xml · nonDerivative · entry 1

DENAULT LEO P · CIK 0001281986 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote (2)

Disclosed balance after: 840.981

F1 · shares: Huntington Ingalls Industries, Inc. paid a cash dividend of $1.24 per share of common stock on September 8, 2023. Pursuant to the terms of the Huntington Ingalls Industries, Inc. 2022 Long-Term Incentive Stock Plan, shares of common stock representing the dividend were deferred into a stock unit account in a transaction exempt by Rule 16b-3.

F2 · ownership.nature: Represents vested restricted stock units credited to the Reporting Person's account pursuant to Huntington Ingalls Industries, Inc.'s 2022 Long-Term Incentive Stock Plan. Each director stock unit represents a right to receive one share of Issuer common stock (or cash equivalent value), which will generally become payable within 30 days following the date a non-employee director ceases to provide services as a member of the board of directors.

SEC source: 0001209191-23-041666 · doc4.xml · nonDerivative · entry 1

DENAULT LEO P · CIK 0001281986 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote (2)

Disclosed balance after: 836.021

F1 · shares: Shares of common stock deferred into stock unit account pursuant to Huntington Ingalls Industries, Inc. 2022 Long-Term Incentive Stock Plan, in an exempt transaction pursuant to Rule 16b-3.

F2 · ownership.nature: Represents stock units credited to the Reporting Person's account pursuant to Huntington Ingalls Industries, Inc. 2022 Long-Term Stock Incentive Plan. Each director stock unit represents a right to receive one share of Issuer common stock (or cash equivalent value).