HII

SEC source: 0001209191-22-016038 · doc4.xml · nonDerivative · entry 4

Kastner Christopher D · CIK 0001569904 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 52,812.875

F1 · shares: This transaction represents a gift to a 501(c)(3) charitable foundation by the reporting person.

SEC source: 0001209191-22-016038 · doc4.xml · nonDerivative · entry 3

Kastner Christopher D · CIK 0001569904 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 52,827.875

F1 · shares: This transaction represents a gift to a 501(c)(3) charitable foundation by the reporting person.

SEC source: 0001209191-22-016038 · doc4.xml · nonDerivative · entry 2

Kastner Christopher D · CIK 0001569904 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 52,850.875

F1 · shares: This transaction represents a gift to a 501(c)(3) charitable foundation by the reporting person.

SEC source: 0001209191-22-016038 · doc4.xml · nonDerivative · entry 1

Kastner Christopher D · CIK 0001569904 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 52,892.875

F1 · shares: This transaction represents a gift to a 501(c)(3) charitable foundation by the reporting person.

SEC source: 0001209191-22-005775 · doc4.xml · nonDerivative · entry 1

Jimenez Frank R · CIK 0001465175 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 212

F1 · shares: Shares of common stock deferred into stock unit account pursuant to Huntington Ingalls Industries, Inc. 2012 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 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: 0001209191-22-001807 · doc4.xml · nonDerivative · entry 1

Bilden Philip M. · CIK 0001722650 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,468

F1 · shares: Shares of common stock issued pursuant to the Huntington Ingalls Industries, Inc. 2012 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: 0001209191-22-001831 · doc4.xml · nonDerivative · entry 1

Collins Augustus L · CIK 0001689175 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 5,447.644

F1 · shares: Shares of common stock deferred into stock unit account pursuant to Huntington Ingalls Industries, Inc. 2011 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 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: 0001209191-22-001871 · doc4.xml · nonDerivative · entry 1

Harker Victoria D · CIK 0001350579 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,874

F1 · shares: Shares of common stock deferred into stock unit account pursuant to Huntington Ingalls Industries, Inc. 2012 Long-Term Incentive Stock Plan, in an exempt transaction pursuant to Rule 16b-3.

SEC source: 0001209191-22-001949 · doc4.xml · nonDerivative · entry 1

WELCH JOHN K · CIK 0001222207 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 4,325.65

F1 · shares: Shares of common stock deferred into stock unit account pursuant to Huntington Ingalls Industries, Inc. 2011 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 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: 0001209191-22-001945 · doc4.xml · nonDerivative · entry 1

SCHIEVELBEIN THOMAS C · CIK 0001216515 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 18,277.032

F1 · shares: Shares of common stock deferred into stock unit account pursuant to Huntington Ingalls Industries, Inc. 2012 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 and 2012 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: 0001209191-22-001890 · doc4.xml · nonDerivative · entry 1

KELLY ANASTASI D · CIK 0001200231 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,284

F1 · shares: Shares of common stock deferred into stock unit account pursuant to Huntington Ingalls Industries, Inc. 2012 Long-Term Incentive Stock Plan, in an exempt transaction pursuant to Rule 16b-3.

SEC source: 0001209191-22-001953 · doc4.xml · nonDerivative · entry 1

Wilson Stephen R · CIK 0001362352 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 4,206.965

F1 · shares: Shares of common stock deferred into stock unit account pursuant to Huntington Ingalls Industries, Inc. 2012 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 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: 0001209191-22-001900 · doc4.xml · nonDerivative · entry 1

McKibben Tracy B · CIK 0001584119 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 2,321.48

F1 · shares: Shares of common stock issued pursuant to the Huntington Ingalls Industries, Inc. 2012 Long-Term Incentive Stock Plan ("Plan"), in an exempt transaction pursuant to Rule 16b-3, in exchange for stock units issued five years ago. The Reporting Person elected five years ago to receive a credit for restricted stock units and defer receipt of these shares for five years.

F2 · ownership.nature: Represents vested restricted stock units credited to the Reporting Person's account pursuant to Huntington Ingalls Industries, Inc.'s 2012 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: 0001209191-22-001935 · doc4.xml · nonDerivative · entry 1

O'Sullivan Stephanie L. · CIK 0001842003 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 893.078

F1 · shares: Shares of common stock deferred into stock unit account pursuant to Huntington Ingalls Industries, Inc. 2012 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 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: 0001209191-22-001845 · doc4.xml · nonDerivative · entry 1

DONALD KIRKLAND H · CIK 0001579933 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 3,444.228

F1 · shares: Shares of common stock deferred into stock unit account pursuant to Huntington Ingalls Industries, Inc. 2012 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 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: 0001209191-22-001043 · doc4.xml · nonDerivative · entry 1

Bilden Philip M. · CIK 0001722650 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,253

F1 · price: Shares of common stock issued in lieu of cash pursuant to the Huntington Ingalls Industries, Inc. 2012 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: 0001209191-22-001051 · doc4.xml · nonDerivative · entry 1

Collins Augustus L · CIK 0001689175 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 5,232.644

F1 · shares: Shares of common stock deferred into stock unit account pursuant to Huntington Ingalls Industries, Inc. 2012 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 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: 0001209191-21-069449 · 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: 3,062.308

F1 · shares: Huntington Ingalls Industries, Inc. paid a cash dividend of $1.18 per share of common stock on December 10, 2021. Pursuant to the terms of the Huntington Ingalls Industries, Inc. 2012 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: 0001209191-21-069457 · doc4.xml · nonDerivative · entry 1

Collins Augustus L · CIK 0001689175 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 5,065.644

F1 · shares: Huntington Ingalls Industries, Inc. paid a cash dividend of $1.18 per share of common stock on December 1, 2021. Pursuant to the terms of the Huntington Ingalls Industries, Inc. 2012 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 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: 0001209191-21-069469 · doc4.xml · nonDerivative · entry 1

Harker Victoria D · CIK 0001350579 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 7,097.8605

F1 · shares: Huntington Ingalls Industries, Inc. paid a cash dividend of $1.18 per share of common stock on December 10, 2021. Pursuant to the terms of the Huntington Ingalls Industries, Inc. 2012 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 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: 0001209191-21-069530 · doc4.xml · nonDerivative · entry 1

WELCH JOHN K · CIK 0001222207 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 4,110.65

F1 · shares: Huntington Ingalls Industries, Inc. paid a cash dividend of $1.18 per share of common stock on December 10, 2021. Pursuant to the terms of the Huntington Ingalls Industries, Inc. 2012 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 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: 0001209191-21-069522 · doc4.xml · nonDerivative · entry 1

SCHIEVELBEIN THOMAS C · CIK 0001216515 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 18,062.032

F1 · shares: Huntington Ingalls Industries, Inc. paid a cash dividend of $1.18 per share of common stock on December 10, 2021. Pursuant to the terms of the Huntington Ingalls Industries, Inc. 2011 and 2012 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 and 2012 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: 0001209191-21-069475 · doc4.xml · nonDerivative · entry 1

KELLY ANASTASI D · CIK 0001200231 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 16,253.62

F1 · shares: Huntington Ingalls Industries, Inc. paid a cash dividend of $1.18 per share of common stock on December 10, 2021. Pursuant to the terms of the Huntington Ingalls Industries, Inc. 2011 and 2012 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 and 2012 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: 0001209191-21-069536 · doc4.xml · nonDerivative · entry 1

Wilson Stephen R · CIK 0001362352 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 3,991.965

F1 · shares: Huntington Ingalls Industries, Inc. paid a cash dividend of $1.18 per share of common stock on December 10, 2021. Pursuant to the terms of the Huntington Ingalls Industries, Inc. 2012 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 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: 0001209191-21-069508 · doc4.xml · nonDerivative · entry 1

O'Sullivan Stephanie L. · CIK 0001842003 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 678.078

F1 · shares: Huntington Ingalls Industries, Inc. paid a cash dividend of $1.18 per share of common stock on December 10, 2021. Pursuant to the terms of the Huntington Ingalls Industries, Inc. 2012 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 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: 0001209191-21-069488 · doc4.xml · nonDerivative · entry 1

McKibben Tracy B · CIK 0001584119 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 2,106.48

F1 · shares: Huntington Ingalls Industries, Inc. paid a cash dividend of $1.18 per share of common stock on December 10, 2021. Pursuant to the terms of the Huntington Ingalls Industries, Inc. 2012 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 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: 0001209191-21-069463 · doc4.xml · nonDerivative · entry 1

DONALD KIRKLAND H · CIK 0001579933 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 3,229.228

F1 · shares: Huntington Ingalls Industries, Inc. paid a cash dividend of $1.18 per share of common stock on December 10, 2021. Pursuant to the terms of the Huntington Ingalls Industries, Inc. 2012 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 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: 0001209191-21-068534 · doc4.xml · nonDerivative · entry 1

Boykin Jennifer R. · CIK 0001706050 · Ex VP, President NNS

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,690.314

SEC source: 0001209191-21-059527 · doc4.xml · nonDerivative · entry 1

Bilden Philip M. · CIK 0001722650 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,073

F1 · shares: Shares of common stock issued pursuant to the Huntington Ingalls Industries, Inc. 2012 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: 0001209191-21-059538 · doc4.xml · nonDerivative · entry 1

Collins Augustus L · CIK 0001689175 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 5,033.703

F1 · shares: Shares of common stock deferred into stock unit account pursuant to Huntington Ingalls Industries, Inc. 2012 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 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: 0001209191-21-059568 · doc4.xml · nonDerivative · entry 1

Harker Victoria D · CIK 0001350579 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 7,053.1065

F1 · shares: Shares of common stock deferred into stock unit account pursuant to Huntington Ingalls Industries, Inc. 2012 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 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: 0001209191-21-059603 · doc4.xml · nonDerivative · entry 1

WELCH JOHN K · CIK 0001222207 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 4,084.732

F1 · shares: Shares of common stock deferred into stock unit account pursuant to Huntington Ingalls Industries, Inc. 2012 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 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: 0001209191-21-059597 · doc4.xml · nonDerivative · entry 1

SCHIEVELBEIN THOMAS C · CIK 0001216515 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 17,948.15

F1 · shares: Shares of common stock deferred into stock unit account pursuant to Huntington Ingalls Industries, Inc. 2012 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 and 2012 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: 0001209191-21-059575 · doc4.xml · nonDerivative · entry 1

KELLY ANASTASI D · CIK 0001200231 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,069

F1 · shares: Shares of common stock issued pursuant to the Huntington Ingalls Industries, Inc. 2012 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: 0001209191-21-059612 · doc4.xml · nonDerivative · entry 1

Wilson Stephen R · CIK 0001362352 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 3,966.795

F1 · shares: Shares of common stock deferred into stock unit account pursuant to Huntington Ingalls Industries, Inc. 2011 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 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: 0001209191-21-059590 · doc4.xml · nonDerivative · entry 1

O'Sullivan Stephanie L. · CIK 0001842003 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 673.803

F1 · shares: Shares of common stock deferred into stock unit account pursuant to Huntington Ingalls Industries, Inc. 2012 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 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: 0001209191-21-059558 · doc4.xml · nonDerivative · entry 1

DONALD KIRKLAND H · CIK 0001579933 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 3,208.866

F1 · shares: Shares of common stock deferred into stock unit account pursuant to Huntington Ingalls Industries, Inc. 2012 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 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: 0001209191-21-059580 · doc4.xml · nonDerivative · entry 1

McKibben Tracy B · CIK 0001584119 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 2,093.198

F1 · shares: Shares of common stock deferred into stock unit account pursuant to Huntington Ingalls Industries, Inc. 2012 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 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: 0001209191-21-058943 · doc4.xml · nonDerivative · entry 1

Bilden Philip M. · CIK 0001722650 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,906

F1 · shares: Shares of common stock issued pursuant to the Huntington Ingalls Industries, Inc. 2012 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: 0001209191-21-058960 · doc4.xml · nonDerivative · entry 1

Collins Augustus L · CIK 0001689175 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 4,866.703

F1 · shares: Shares of common stock deferred into stock unit account pursuant to Huntington Ingalls Industries, Inc. 2011 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 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: 0001209191-21-059632 · doc4.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,043

F2 · balance_after: Total amount includes 3,043 restricted stock rights granted under the Huntington Ingalls Industries, Inc. 2012 Long-Term Incentive Stock Plan ("HII LTISP") on September 27, 2021, with 100% vesting on September 27, 2023.

SEC source: 0001209191-21-059632 · 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: 1,014

F1 · balance_after: Total amount includes 1,014 restricted stock rights granted under the Huntington Ingalls Industries, Inc. 2012 Long-Term Incentive Stock Plan ("HII LTISP") on September 27, 2021, with 100% vesting on September 27, 2022.

SEC source: 0001209191-21-055904 · doc4.xml · nonDerivative · entry 1

Collins Augustus L · CIK 0001689175 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 4,705.703

F1 · shares: Huntington Ingalls Industries, Inc. paid a cash dividend of $1.14 per share of common stock on September 10, 2021. Pursuant to the terms of the Huntington Ingalls Industries, Inc. 2012 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 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: 0001209191-21-055926 · doc4.xml · nonDerivative · entry 1

Harker Victoria D · CIK 0001350579 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 6,886.1065

F1 · shares: Huntington Ingalls Industries, Inc. paid a cash dividend of $1.14 per share of common stock on September 10, 2021. Pursuant to the terms of the Huntington Ingalls Industries, Inc. 2012 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 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: 0001209191-21-055949 · doc4.xml · nonDerivative · entry 1

WELCH JOHN K · CIK 0001222207 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 3,917.732

F1 · shares: Huntington Ingalls Industries, Inc. paid a cash dividend of $1.14 per share of common stock on September 10, 2021. Pursuant to the terms of the Huntington Ingalls Industries, Inc. 2012 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 and 2012 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: 0001209191-21-055946 · doc4.xml · nonDerivative · entry 1

SCHIEVELBEIN THOMAS C · CIK 0001216515 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 17,781.15

F1 · shares: Huntington Ingalls Industries, Inc. paid a cash dividend of $1.14 per share of common stock on September 10, 2021. Pursuant to the terms of the Huntington Ingalls Industries, Inc. 2011 and 2012 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 and 2012 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: 0001209191-21-055930 · doc4.xml · nonDerivative · entry 1

KELLY ANASTASI D · CIK 0001200231 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 16,151.143

F1 · shares: Huntington Ingalls Industries, Inc. paid a cash dividend of $1.14 per share of common stock on September 10, 2021. Pursuant to the terms of the Huntington Ingalls Industries, Inc. 2011 and 2012 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 and 2012 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: 0001209191-21-055955 · doc4.xml · nonDerivative · entry 1

Wilson Stephen R · CIK 0001362352 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 3,799.795

F1 · shares: Huntington Ingalls Industries, Inc. paid a cash dividend of $1.14 per share of common stock on September 10, 2021. Pursuant to the terms of the Huntington Ingalls Industries, Inc. 2012 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 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: 0001209191-21-055943 · doc4.xml · nonDerivative · entry 1

O'Sullivan Stephanie L. · CIK 0001842003 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 506.803

F1 · shares: Huntington Ingalls Industries, Inc. paid a cash dividend of $1.14 per share of common stock on September 10, 2021. Pursuant to the terms of the Huntington Ingalls Industries, Inc. 2012 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 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: 0001209191-21-055938 · doc4.xml · nonDerivative · entry 1

McKibben Tracy B · CIK 0001584119 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 1,926.198

F1 · shares: Huntington Ingalls Industries, Inc. paid a cash dividend of $1.14 per share of common stock on September 10, 2021. Pursuant to the terms of the Huntington Ingalls Industries, Inc. 2012 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 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.