HII

SEC source: 0001209191-20-053274 · doc4.xml · nonDerivative · entry 1

Collins Augustus L · CIK 0001689175 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 3,385.619

F1 · 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: 0001209191-20-050536 · doc4.xml · nonDerivative · entry 1

Collins Augustus L · CIK 0001689175 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 3,163.619

F1 · shares: Huntington Ingalls Industries, Inc. paid a cash dividend of $1.03 per share of common stock on September 11, 2020. 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: 0001209191-20-050553 · doc4.xml · nonDerivative · entry 1

Harker Victoria D · CIK 0001350579 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 5,992.6625

F1 · shares: Huntington Ingalls Industries, Inc. paid a cash dividend of $1.03 per share of common stock on September 11, 2020. 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: 0001209191-20-050569 · doc4.xml · nonDerivative · entry 1

WELCH JOHN K · CIK 0001222207 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 3,092.092

F1 · shares: Huntington Ingalls Industries, Inc. paid a cash dividend of $1.03 per share of common stock on September 11, 2020. 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: 0001209191-20-050566 · doc4.xml · nonDerivative · entry 1

SCHIEVELBEIN THOMAS C · CIK 0001216515 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 17,379.515

F1 · shares: Huntington Ingalls Industries, Inc. paid a cash dividend of $1.03 per share of common stock on September 11, 2020. 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.

SEC source: 0001209191-20-050558 · doc4.xml · nonDerivative · entry 1

KELLY ANASTASI D · CIK 0001200231 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 15,782.29

F1 · shares: Huntington Ingalls Industries, Inc. paid a cash dividend of $1.03 per share of common stock on September 11, 2020. 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.

SEC source: 0001209191-20-050579 · doc4.xml · nonDerivative · entry 1

Wilson Stephen R · CIK 0001362352 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 2,976.847

F1 · shares: Huntington Ingalls Industries, Inc. paid a cash dividend of $1.03 per share of common stock on September 11, 2020. 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: 0001209191-20-050563 · doc4.xml · nonDerivative · entry 1

McKibben Tracy B · CIK 0001584119 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 1,146.04

F1 · shares: Huntington Ingalls Industries, Inc. paid a cash dividend of $1.03 per share of common stock on September 11, 2020. 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: 0001209191-20-050548 · doc4.xml · nonDerivative · entry 1

DONALD KIRKLAND H · CIK 0001579933 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 2,236.228

F1 · shares: Huntington Ingalls Industries, Inc. paid a cash dividend of $1.03 per share of common stock on September 11, 2020. 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: 0001209191-20-049747 · doc4.xml · derivative · entry 3

ERMATINGER WILLIAM R · CIK 0001515127 · Ex. VP, Chief HR Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,306.3903

Underlying: Common Stock · 2,899.8248 shares

Expires not disclosed

F2 · derivative.exercise_price: The transaction constitutes an intra-plan transfer in the Huntington Ingalls Industries, Inc. Savings Excess Plan (the "Plan") from one investment option to the HII Stock Fund. The reporting person's interest in the HII Stock Fund is held in the form of units of interest. The Plan's administrator calculates the number of shares of issuer common stock represented by units in the HII Stock Fund.

F2 · deemedExecutionDate: The transaction constitutes an intra-plan transfer in the Huntington Ingalls Industries, Inc. Savings Excess Plan (the "Plan") from one investment option to the HII Stock Fund. The reporting person's interest in the HII Stock Fund is held in the form of units of interest. The Plan's administrator calculates the number of shares of issuer common stock represented by units in the HII Stock Fund.

F2 · derivative.exercise_date: The transaction constitutes an intra-plan transfer in the Huntington Ingalls Industries, Inc. Savings Excess Plan (the "Plan") from one investment option to the HII Stock Fund. The reporting person's interest in the HII Stock Fund is held in the form of units of interest. The Plan's administrator calculates the number of shares of issuer common stock represented by units in the HII Stock Fund.

F2 · derivative.expiration_date: The transaction constitutes an intra-plan transfer in the Huntington Ingalls Industries, Inc. Savings Excess Plan (the "Plan") from one investment option to the HII Stock Fund. The reporting person's interest in the HII Stock Fund is held in the form of units of interest. The Plan's administrator calculates the number of shares of issuer common stock represented by units in the HII Stock Fund.

SEC source: 0001209191-20-047020 · doc4.xml · derivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,825.2003

Underlying: Common Stock · 2,089.2423 shares

Expires not disclosed

F2 · derivative.exercise_price: The transaction constitutes an intra-plan transfer in the Huntington Ingalls Industries, Inc. Savings Excess Plan (the "Plan") from one investment option to the HII Stock Fund. The reporting person's interest in the HII Stock Fund is held in the form of units of interest. The Plan's administrator calculates the number of shares of issuer common stock represented by units in the HII Stock Fund.

F2 · derivative.exercise_date: The transaction constitutes an intra-plan transfer in the Huntington Ingalls Industries, Inc. Savings Excess Plan (the "Plan") from one investment option to the HII Stock Fund. The reporting person's interest in the HII Stock Fund is held in the form of units of interest. The Plan's administrator calculates the number of shares of issuer common stock represented by units in the HII Stock Fund.

F2 · derivative.expiration_date: The transaction constitutes an intra-plan transfer in the Huntington Ingalls Industries, Inc. Savings Excess Plan (the "Plan") from one investment option to the HII Stock Fund. The reporting person's interest in the HII Stock Fund is held in the form of units of interest. The Plan's administrator calculates the number of shares of issuer common stock represented by units in the HII Stock Fund.

SEC source: 0001209191-20-047020 · doc4.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,096.596

F1 · price: The price shown is the weighted average price at which shares were acquired in multiple sales transactions made pursuant to a single market order. The range of prices for the transactions was $168.19 to $168.26. Upon request by SEC staff, the issuer or a security holder of the issuer, the reporting person will provide full information regarding the number of shares sold at each separate price.

SEC source: 0001209191-20-046186 · doc4.xml · derivative · entry 3

Kastner Christopher D · CIK 0001569904 · Ex. VP & CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,549.6104

Underlying: Common Stock · 2,956.3058 shares

Expires not disclosed

F1 · derivative.exercise_price: The reporting person made a intra-plan transfer. The issuer's outside administrator for the Savings Excess Plan holds stock in a pooled fund as a participant investment option which is accounted for as units of interest in the issuer stock fund. Each unit was valued at $40.93 as of August 10, 2020. The unit value can fluctuate with fluctuations in the value of the issuer common stock and the daily cash position of the issuer stock fund. The number of shares of issuer stock attributable to the reporting person can be determined at any time by first multiplying the number of units in the reporting person's account by the then current unit price and dividing the total by the price of the issuer common stock. As of August 10, 2020, the reporting person held an equivalent of 2,956.3058 shares in the issuer Savings Excess Plan. The Savings Excess plan is a "Non-Qualified Plan" as defined in 16b-3(b)

F1 · derivative.exercise_date: The reporting person made a intra-plan transfer. The issuer's outside administrator for the Savings Excess Plan holds stock in a pooled fund as a participant investment option which is accounted for as units of interest in the issuer stock fund. Each unit was valued at $40.93 as of August 10, 2020. The unit value can fluctuate with fluctuations in the value of the issuer common stock and the daily cash position of the issuer stock fund. The number of shares of issuer stock attributable to the reporting person can be determined at any time by first multiplying the number of units in the reporting person's account by the then current unit price and dividing the total by the price of the issuer common stock. As of August 10, 2020, the reporting person held an equivalent of 2,956.3058 shares in the issuer Savings Excess Plan. The Savings Excess plan is a "Non-Qualified Plan" as defined in 16b-3(b)

F1 · derivative.expiration_date: The reporting person made a intra-plan transfer. The issuer's outside administrator for the Savings Excess Plan holds stock in a pooled fund as a participant investment option which is accounted for as units of interest in the issuer stock fund. Each unit was valued at $40.93 as of August 10, 2020. The unit value can fluctuate with fluctuations in the value of the issuer common stock and the daily cash position of the issuer stock fund. The number of shares of issuer stock attributable to the reporting person can be determined at any time by first multiplying the number of units in the reporting person's account by the then current unit price and dividing the total by the price of the issuer common stock. As of August 10, 2020, the reporting person held an equivalent of 2,956.3058 shares in the issuer Savings Excess Plan. The Savings Excess plan is a "Non-Qualified Plan" as defined in 16b-3(b)

SEC source: 0001209191-20-041104 · doc4.xml · nonDerivative · entry 1

Bilden Philip M. · CIK 0001722650 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,667

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: 0001209191-20-041274 · doc4.xml · nonDerivative · entry 1

Collins Augustus L · CIK 0001689175 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 3,141.667

F1 · 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: 0001209191-20-041162 · doc4.xml · nonDerivative · entry 1

Harker Victoria D · CIK 0001350579 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 5,951.0725

F1 · 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: 0001209191-20-041202 · doc4.xml · nonDerivative · entry 1

WELCH JOHN K · CIK 0001222207 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 3,070.635

F1 · 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: 0001209191-20-041296 · doc4.xml · nonDerivative · entry 1

SCHIEVELBEIN THOMAS C · CIK 0001216515 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 17,258.906

F1 · 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: 0001209191-20-041284 · doc4.xml · nonDerivative · entry 1

KELLY ANASTASI D · CIK 0001200231 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,160

SEC source: 0001209191-20-041212 · doc4.xml · nonDerivative · entry 1

Wilson Stephen R · CIK 0001362352 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 2,956.19

F1 · 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: 0001209191-20-041186 · doc4.xml · nonDerivative · entry 1

McKibben Tracy B · CIK 0001584119 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 1,138.087

F1 · 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: 0001209191-20-041154 · doc4.xml · nonDerivative · entry 1

DONALD KIRKLAND H · CIK 0001579933 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 2,220.711

F1 · 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: 0001209191-20-041132 · doc4a.xml · nonDerivative · entry 1

Collins Augustus L · CIK 0001689175 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 2,954.667

F1 · shares: Due to a clerical error, the actual line item transaction was not identified on the original reporting however the total ownership holdings did reflect the updated ownership holdings.

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: 0001209191-20-037047 · doc4.xml · nonDerivative · entry 1

Collins Augustus L · CIK 0001689175 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 2,775.667

F1 · shares: Huntington Ingalls Industries, Inc. paid a cash dividend of $1.03 per share of common stock on June 12, 2020. 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: 0001209191-20-037060 · doc4.xml · nonDerivative · entry 1

Harker Victoria D · CIK 0001350579 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 5,764.0725

F1 · shares: Huntington Ingalls Industries, Inc. paid a cash dividend of $1.03 per share of common stock on June 12, 2020. 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: 0001209191-20-037071 · doc4.xml · nonDerivative · entry 1

WELCH JOHN K · CIK 0001222207 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 2,883.635

F1 · shares: Huntington Ingalls Industries, Inc. paid a cash dividend of $1.03 per share of common stock on June 12, 2020. 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: 0001209191-20-037067 · doc4.xml · nonDerivative · entry 1

SCHIEVELBEIN THOMAS C · CIK 0001216515 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 17,071.906

F1 · shares: Huntington Ingalls Industries, Inc. paid a cash dividend of $1.03 per share of common stock on June 12, 2020. 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.

SEC source: 0001209191-20-037063 · doc4.xml · nonDerivative · entry 1

KELLY ANASTASI D · CIK 0001200231 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 15,672.773

F1 · shares: Huntington Ingalls Industries, Inc. paid a cash dividend of $1.03 per share of common stock on June 12, 2020. 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: 0001209191-20-037073 · doc4.xml · nonDerivative · entry 1

Wilson Stephen R · CIK 0001362352 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 2,769.19

F1 · shares: Huntington Ingalls Industries, Inc. paid a cash dividend of $1.03 per share of common stock on June 12, 2020. 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: 0001209191-20-037065 · doc4.xml · nonDerivative · entry 1

McKibben Tracy B · CIK 0001584119 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 951.087

F1 · price: Huntington Ingalls Industries, Inc. paid a cash dividend of $1.03 per share of common stock on June 12, 2020. 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: 0001209191-20-037057 · doc4.xml · nonDerivative · entry 1

DONALD KIRKLAND H · CIK 0001579933 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 2,033.711

F1 · shares: Huntington Ingalls Industries, Inc. paid a cash dividend of $1.03 per share of common stock on June 12, 2020. 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: 0001209191-20-032774 · doc4.xml · nonDerivative · entry 1

Wyatt D R · CIK 0001516245 · Corp VP & Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,210.543

SEC source: 0001209191-20-032769 · doc4.xml · nonDerivative · entry 1

Dickseski Jerri F · CIK 0001516246 · EX. VP, Communications

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 29,165.396

F1 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 3, 2019.

SEC source: 0001209191-20-032404 · doc4.xml · nonDerivative · entry 1

Green Edgar A III · CIK 0001691442 · Ex VP, Pres. HII Technical Sol

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,282.308

SEC source: 0001209191-20-027945 · doc4.xml · nonDerivative · entry 1

Bilden Philip M. · CIK 0001722650 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By P. Bilden Associates LLC

Disclosed balance after: 15,809

F1 · shares: The acquisition of the shares reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 10, 2020.

SEC source: 0001209191-20-027146 · doc4.xml · nonDerivative · entry 1

Bilden Philip M. · CIK 0001722650 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By P. Bilden Associates LLC

Disclosed balance after: 15,238

F1 · shares: The acquisition of the shares reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 10, 2020.

SEC source: 0001209191-20-025385 · doc4.xml · nonDerivative · entry 1

Bilden Philip M. · CIK 0001722650 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By P. Bilden Associates LLC

Disclosed balance after: 14,683

F1 · shares: The acquisition of the shares reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 10, 2020.

SEC source: 0001209191-20-024998 · doc4.xml · nonDerivative · entry 1

Bilden Philip M. · CIK 0001722650 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By P. Bilden Associates LLC

Disclosed balance after: 14,143

F1 · shares: The acquisition of the shares reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 10, 2020.

SEC source: 0001209191-20-024536 · doc4.xml · nonDerivative · entry 1

Bilden Philip M. · CIK 0001722650 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By P. Bilden Associates LLC

Disclosed balance after: 13,617

F1 · shares: The acquisition of the shares reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 10, 2020.

SEC source: 0001209191-20-023476 · doc4.xml · nonDerivative · entry 1

Bilden Philip M. · CIK 0001722650 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,480

SEC source: 0001209191-20-023481 · doc4.xml · nonDerivative · entry 1

Collins Augustus L · CIK 0001689175 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 2,760.071

F1 · ownership.direct: 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: 0001209191-20-023490 · doc4.xml · nonDerivative · entry 1

Harker Victoria D · CIK 0001350579 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 5,731.6825

F1 · 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: 0001209191-20-023516 · doc4.xml · nonDerivative · entry 1

WELCH JOHN K · CIK 0001222207 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 2,867.433

F1 · 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: 0001209191-20-023506 · doc4.xml · nonDerivative · entry 1

SCHIEVELBEIN THOMAS C · CIK 0001216515 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 16,975.986

F1 · 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: 0001209191-20-023496 · doc4.xml · nonDerivative · entry 1

KELLY ANASTASI D · CIK 0001200231 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,973

SEC source: 0001209191-20-023470 · doc4.xml · nonDerivative · entry 1

FARGO THOMAS B · CIK 0001317283 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 17,527.941

F1 · 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: 0001209191-20-023521 · doc4.xml · nonDerivative · entry 1

Wilson Stephen R · CIK 0001362352 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 2,753.631

F1 · 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: 0001209191-20-023499 · doc4.xml · nonDerivative · entry 1

McKibben Tracy B · CIK 0001584119 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 945.743

F1 · 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: 0001209191-20-023486 · doc4.xml · nonDerivative · entry 1

DONALD KIRKLAND H · CIK 0001579933 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 2,022.284

F1 · 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: 0001209191-20-022824 · doc4.xml · nonDerivative · entry 1

Collins Augustus L · CIK 0001689175 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 2,573.071

F1 · kind: 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.