HII

SEC source: 0001209191-22-060993 · doc4.xml · nonDerivative · entry 1

Jimenez Frank R · CIK 0001465175 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 776.579

F1 · kind: Huntington Ingalls Industries, Inc. paid a cash dividend of $1.24 per share of common stock on December 9, 2022. Pursuant to the terms of the Huntington Ingalls Industries, Inc. 2012 and 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.direct: 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: 0001209191-22-060982 · doc4.xml · nonDerivative · entry 1

Harker Victoria D · CIK 0001350579 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 7,252.6015

F1 · kind: Huntington Ingalls Industries, Inc. paid a cash dividend of $1.24 per share of common stock on December 9, 2022. Pursuant to the terms of the Huntington Ingalls Industries, Inc. 2012 and 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 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: 0001209191-22-061016 · doc4.xml · nonDerivative · entry 1

WELCH JOHN K · CIK 0001222207 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 4,979.893

F1 · kind: Huntington Ingalls Industries, Inc. paid a cash dividend of $1.24 per share of common stock on December 9, 2022. Pursuant to the terms of the Huntington Ingalls Industries, Inc. 2012 and 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.direct: 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: 0001209191-22-061012 · doc4.xml · nonDerivative · entry 1

SCHIEVELBEIN THOMAS C · CIK 0001216515 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 19,235.374

F1 · kind: Huntington Ingalls Industries, Inc. paid a cash dividend of $1.24 per share of common stock on December 9, 2022. Pursuant to the terms of the Huntington Ingalls Industries, Inc. 2011, 2012 and 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.

F1 · ownership.direct: Huntington Ingalls Industries, Inc. paid a cash dividend of $1.24 per share of common stock on December 9, 2022. Pursuant to the terms of the Huntington Ingalls Industries, Inc. 2011, 2012 and 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.

SEC source: 0001209191-22-060998 · doc4.xml · nonDerivative · entry 1

KELLY ANASTASI D · CIK 0001200231 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 16,607.901

F1 · kind: Huntington Ingalls Industries, Inc. paid a cash dividend of $1.24 per share of common stock on December 9, 2022. Pursuant to the terms of the Huntington Ingalls Industries, Inc. 2011, 2012 and 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.direct: Represents vested restricted stock units credited to the Reporting Person's account pursuant to Huntington Ingalls Industries, Inc.'s 2011, 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: 0001209191-22-061020 · doc4.xml · nonDerivative · entry 1

Wilson Stephen R · CIK 0001362352 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 4,858.621

F1 · kind: Huntington Ingalls Industries, Inc. paid a cash dividend of $1.24 per share of common stock on Decembrer 9, 2022. Pursuant to the terms of the Huntington Ingalls Industries, Inc. 2012 and 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.direct: 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: 0001209191-22-061006 · doc4.xml · nonDerivative · entry 1

O'Sullivan Stephanie L. · CIK 0001842003 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 1,472.502

F1 · kind: Huntington Ingalls Industries, Inc. paid a cash dividend of $1.24 per share of common stock on December 9, 2022. Pursuant to the terms of the Huntington Ingalls Industries, Inc. 2012 and 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.direct: 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: 0001209191-22-061001 · doc4.xml · nonDerivative · entry 1

McKibben Tracy B · CIK 0001584119 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 2,932.037

F1 · kind: Huntington Ingalls Industries, Inc. paid a cash dividend of $1.24 per share of common stock on December 9,2022. Pursuant to the terms of the Huntington Ingalls Industries, Inc. 2012 and 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 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: 0001209191-22-060973 · doc4.xml · nonDerivative · entry 1

DONALD KIRKLAND H · CIK 0001579933 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 4,079.258

F1 · kind: Huntington Ingalls Industries, Inc. paid a cash dividend of $1.24 per share of common stock on December 9, 2022. Pursuant to the terms of the Huntington Ingalls Industries, Inc. 2012 and 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: Pursuant to the terms of the Huntington Ingalls Industries, Inc. 2012 and 2022 Long-Term Incentive Stock Plan, the number of shares is determined by dividing the aggregate amount of the dividend by the closing price of a share of common stock on the date of the payment of the dividend.

SEC source: 0001209191-23-018725 · doc4.xml · nonDerivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,548.473

F1 · date: Shares purchased through broker-administered dividend reinvestment plan. These shares were not timely reported due to communication errors.

SEC source: 0001209191-23-007652 · doc5.xml · nonDerivative · entry 1

PETTERS C MICHAEL · CIK 0001307506 · Director · Retired Exec. Vice Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 456,565.517

SEC source: 0001209191-22-052797 · doc4.xml · nonDerivative · entry 1

Collins Augustus L · CIK 0001689175 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 6,537.1

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: 0001209191-22-052820 · doc4.xml · nonDerivative · entry 1

Jimenez Frank R · CIK 0001465175 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 772.474

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: 0001209191-22-052815 · doc4.xml · nonDerivative · entry 1

Harker Victoria D · CIK 0001350579 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,428

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. After the Reporting Person has accumulated a combination of restricted stock units and/or shares of common stock equal to at least five times the cash portion of their annual retainer, the Reporting Person may elect annually to receive and directly own common stock, rather than receiving cash payment.

SEC source: 0001209191-22-052880 · doc4.xml · nonDerivative · entry 1

WELCH JOHN K · CIK 0001222207 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 4,953.574

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: 0001209191-22-052870 · doc4.xml · nonDerivative · entry 1

SCHIEVELBEIN THOMAS C · CIK 0001216515 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 19,133.702

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 2011, 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: 0001209191-22-052827 · doc4.xml · nonDerivative · entry 1

KELLY ANASTASI D · CIK 0001200231 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,838

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: 0001209191-22-052883 · doc4.xml · nonDerivative · entry 1

Wilson Stephen R · CIK 0001362352 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 4,832.943

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: 0001209191-22-052859 · doc4.xml · nonDerivative · entry 1

O'Sullivan Stephanie L. · CIK 0001842003 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 1,464.718

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: 0001209191-22-052850 · doc4.xml · nonDerivative · entry 1

McKibben Tracy B · CIK 0001584119 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 2,916.542

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: 0001209191-22-052809 · doc4.xml · nonDerivative · entry 1

DONALD KIRKLAND H · CIK 0001579933 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 4,057.699

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: 0001209191-22-052339 · doc4.xml · nonDerivative · entry 1

Collins Augustus L · CIK 0001689175 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 6,361.1

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 2011, 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: 0001209191-22-051467 · doc4.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,734.518

F1 · kind: Shares withheld by the issuer for the payment of withholding taxes on restricted stock that vested on September 27, 2022.

SEC source: 0001209191-22-049705 · doc4.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,112.518

F1 · shares: Huntington Ingalls Industries, Inc. paid a cash dividend of $1.18 per share of common stock on September 9, 2022. Pursuant to the terms of the Huntington Ingalls Industries, Inc. 2012 and 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.

SEC source: 0001209191-22-049707 · doc4.xml · nonDerivative · entry 1

Collins Augustus L · CIK 0001689175 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 6,220.1

F1 · shares: Huntington Ingalls Industries, Inc. paid a cash dividend of $1.18 per share of common stock on September 9, 2022. Pursuant to the terms of the Huntington Ingalls Industries, Inc. 2012 and 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 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: 0001209191-22-049730 · doc4.xml · nonDerivative · entry 1

Jimenez Frank R · CIK 0001465175 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 596.474

F1 · shares: Huntington Ingalls Industries, Inc. paid a cash dividend of $1.18 per share of common stock on September 9, 2022. Pursuant to the terms of the Huntington Ingalls Industries, Inc. 2012 and 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 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: 0001209191-22-049714 · doc4.xml · nonDerivative · entry 1

Harker Victoria D · CIK 0001350579 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 7,214.2655

F1 · shares: Huntington Ingalls Industries, Inc. paid a cash dividend of $1.18 per share of common stock on September 9, 2022. Pursuant to the terms of the Huntington Ingalls Industries, Inc. 2012 and 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 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: 0001209191-22-049732 · doc4.xml · nonDerivative · entry 1

KELLY ANASTASI D · CIK 0001200231 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 16,520.116

F1 · shares: Huntington Ingalls Industries, Inc. paid a cash dividend of $1.18 per share of common stock on September 9, 2022. Pursuant to the terms of the Huntington Ingalls Industries, Inc. 2011, 2012 and 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 2011, 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: 0001209191-22-049745 · doc4.xml · nonDerivative · entry 1

WELCH JOHN K · CIK 0001222207 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 4,777.574

F1 · shares: Huntington Ingalls Industries, Inc. paid a cash dividend of $1.18 per share of common stock on September 9, 2022. Pursuant to the terms of the Huntington Ingalls Industries, Inc. 2012 and 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 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: 0001209191-22-049741 · doc4.xml · nonDerivative · entry 1

SCHIEVELBEIN THOMAS C · CIK 0001216515 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 18,957.702

F1 · shares: Huntington Ingalls Industries, Inc. paid a cash dividend of $1.18 per share of common stock on September 9, 2022. Pursuant to the terms of the Huntington Ingalls Industries, Inc. 2011, 2012 and 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 2011, 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: 0001209191-22-049750 · doc4.xml · nonDerivative · entry 1

Wilson Stephen R · CIK 0001362352 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 4,656.943

F1 · shares: Huntington Ingalls Industries, Inc. paid a cash dividend of $1.18 per share of common stock on September 9, 2022. Pursuant to the terms of the Huntington Ingalls Industries, Inc. 2012 and 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 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: 0001209191-22-049738 · doc4.xml · nonDerivative · entry 1

O'Sullivan Stephanie L. · CIK 0001842003 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 1,288.718

F1 · shares: Huntington Ingalls Industries, Inc. paid a cash dividend of $1.18 per share of common stock on September 9, 2022. Pursuant to the terms of the Huntington Ingalls Industries, Inc. 2012 and 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 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: 0001209191-22-049734 · doc4.xml · nonDerivative · entry 1

McKibben Tracy B · CIK 0001584119 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 2,740.542

F1 · shares: Huntington Ingalls Industries, Inc. paid a cash dividend of $1.18 per share of common stock on September 9, 2022. Pursuant to the terms of the Huntington Ingalls Industries, Inc. 2012 and 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 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: 0001209191-22-049709 · doc4.xml · nonDerivative · entry 1

DONALD KIRKLAND H · CIK 0001579933 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 3,881.699

F1 · shares: Huntington Ingalls Industries, Inc. paid a cash dividend of $1.18 per share of common stock on September 9, 2022. Pursuant to the terms of the Huntington Ingalls Industries, Inc. 2012 and 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 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: 0001209191-23-018725 · doc4.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,509.196

F1 · date: Shares purchased through broker-administered dividend reinvestment plan. These shares were not timely reported due to communication errors.

SEC source: 0001209191-22-048918 · doc4.xml · nonDerivative · entry 1

Wyatt D R · CIK 0001516245 · Corp VP & Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,554.078

SEC source: 0001628280-25-000060 · wk-form5_1735852695.xml · nonDerivative · entry 3

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

10b5-1 filing: No plan indicated

Ownership: Indirect · Held in the Kastner Family Trust

Disclosed balance after: 51,725

F1 · kind: Transfer of shares to family trust.

SEC source: 0001628280-25-000060 · wk-form5_1735852695.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,717.901

F1 · kind: Transfer of shares to family trust.

SEC source: 0001209191-23-007633 · doc5.xml · nonDerivative · entry 1

Kastner Christopher D · CIK 0001569904 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 58,046.24

SEC source: 0001209191-22-041264 · doc4.xml · nonDerivative · entry 1

Bilden Philip M. · CIK 0001722650 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,169

F1 · shares: Shares of common stock issued pursuant to the Huntington Ingalls Industries, Inc. 2022 Long-Term Incentive Stock Plan ("Plan"), in an exempt transaction pursuant to Rule 16b-3. After the Reporting Person has accumulated a combination of restricted stock units and/or shares of common stock equal to at least five times the cash portion of their annual retainer, the Reporting Person may elect annually to receive and directly own common stock, rather than receiving a credit for restricted stock units.

SEC source: 0001209191-22-041268 · doc4.xml · nonDerivative · entry 1

Collins Augustus L · CIK 0001689175 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 6,189.068

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: 0001209191-22-041292 · doc4.xml · nonDerivative · entry 1

Jimenez Frank R · CIK 0001465175 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 593.498

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: 0001209191-22-041287 · doc4.xml · nonDerivative · entry 1

Harker Victoria D · CIK 0001350579 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,252

F1 · shares: Shares of common stock issued pursuant to the Huntington Ingalls Industries, Inc. 2022 Long-Term Incentive Stock Plan ("Plan"), in an exempt transaction pursuant to Rule 16b-3. After the Reporting Person has accumulated a combination of restricted stock units and/or shares of common stock equal to at least five times the cash portion of their annual retainer, the Reporting Person may elect annually to receive and directly own common stock, rather than receiving a credit for restricted stock units.

SEC source: 0001209191-22-041341 · doc4.xml · nonDerivative · entry 1

WELCH JOHN K · CIK 0001222207 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 4,753.735

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: 0001209191-22-041334 · doc4.xml · nonDerivative · entry 1

SCHIEVELBEIN THOMAS C · CIK 0001216515 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 18,863.106

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 2011, 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: 0001209191-22-041303 · doc4.xml · nonDerivative · entry 1

KELLY ANASTASI D · CIK 0001200231 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,662

F1 · shares: Shares of common stock issued pursuant to the Huntington Ingalls Industries, Inc. 2022 Long-Term Incentive Stock Plan ("Plan"), in an exempt transaction pursuant to Rule 16b-3. After the Reporting Person has accumulated a combination of restricted stock units and/or shares of common stock equal to at least five times the cash portion of their annual retainer, the Reporting Person may elect annually to receive and directly own common stock, rather than receiving a credit for restricted stock units.

SEC source: 0001209191-22-041346 · doc4.xml · nonDerivative · entry 1

Wilson Stephen R · CIK 0001362352 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 4,633.707

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: 0001209191-22-041325 · doc4.xml · nonDerivative · entry 1

O'Sullivan Stephanie L. · CIK 0001842003 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 1,282.289

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: 0001209191-22-041311 · doc4.xml · nonDerivative · entry 1

McKibben Tracy B · CIK 0001584119 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 2,726.868

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: 0001209191-22-041285 · doc4.xml · nonDerivative · entry 1

DONALD KIRKLAND H · CIK 0001579933 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 3,862.332

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.