NOC

SEC source: 0001225208-20-002416 · doc4.xml · derivative · entry 6

Pamiljans Janis G · CIK 0001701037 · CVP, Pres, Aeronautics Systems

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 33,188.05

Underlying: Common Stock · 3,572 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · derivative.exercise_price: Each RPSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock. The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period. Grants awarded pursuant to Rule 16b-3(d).

F2 · shares: Shares expected to be issued in settlement of Restricted Performance Stock Rights ("RPSRs") granted under the 2011 Long-Term Incentive Stock Plan ("LTISP") on 2/17/17 with a valuation of performance measurement period ("measurement period") that ended 12/31/19. RPSRs to be settled at 200% of target. The shares are anticipated to be distributed into the participant's account on February 14, 2020.

F5 · derivative.exercise_date: Each RPSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock. The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period. Grants awarded pursuant to Rule 16b-3(d).

F5 · derivative.expiration_date: Each RPSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock. The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period. Grants awarded pursuant to Rule 16b-3(d).

F8 · balance_after: Total amount includes 6,009 RPSRs granted on 2/12/20 with a measurement period ending on 12/31/22; 9,038 RPSRs granted on 2/13/19 with a measurement period ending on 12/31/21; 6,961 RPSRs granted on 2/13/18 with a measurement period ending on 12/31/20; and 11,180.05 RPSRs granted on 4/1/17 with a measurement period ended on 12/31/19.

SEC source: 0001225208-20-002416 · doc4.xml · derivative · entry 5

Pamiljans Janis G · CIK 0001701037 · CVP, Pres, Aeronautics Systems

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 36,760.05

Underlying: Common Stock · 9,580.05 shares

Expires not disclosed

F5 · derivative.exercise_price: Each RPSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock. The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period. Grants awarded pursuant to Rule 16b-3(d).

F6 · shares: The RPSRs acquired include (i) 1,786 vested RPSRs with respect to the measurement period ended 12/31/19 acquired due to settlement of the 2017 RPSRs held at 200% of the target award; (ii) 1,785.05 vested RPSRs with respect to the measurement period ended 12/31/19 acquired due to settlement of the 2017 RPSRs held at 119% of the target award; and (iii) 6,009 unvested RPSRs granted under the LTISP on 2/12/20 with a measurement period ending on 12/31/22.

F5 · derivative.exercise_date: Each RPSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock. The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period. Grants awarded pursuant to Rule 16b-3(d).

F5 · derivative.expiration_date: Each RPSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock. The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period. Grants awarded pursuant to Rule 16b-3(d).

F7 · balance_after: Total amount includes 6,009 RPSRs granted on 2/12/20 with a measurement period ending on 12/31/22; 9,038 RPSRs granted on 2/13/19 with a measurement period ending on 12/31/21; 6,961 RPSRs granted on 2/13/18 with a measurement period ending on 12/31/20; 11,180.05 RPSRs granted under the LTISP on 4/1/17 with a measurement period ended on 12/31/19; and 3,572 vested RPSRs granted under the LTISP on 2/17/17 with a measurement period ended on 12/31/19.

SEC source: 0001225208-20-002416 · doc4.xml · nonDerivative · entry 3

Pamiljans Janis G · CIK 0001701037 · CVP, Pres, Aeronautics Systems

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,972.2

F3 · shares: Shares surrendered to issuer in payment of tax liability in connection with settlement of RPSRs in accordance with Rule 16b-3(e)

SEC source: 0001225208-20-002416 · doc4.xml · nonDerivative · entry 2

Pamiljans Janis G · CIK 0001701037 · CVP, Pres, Aeronautics Systems

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 19,884.2

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · shares: Shares expected to be issued in settlement of Restricted Performance Stock Rights ("RPSRs") granted under the 2011 Long-Term Incentive Stock Plan ("LTISP") on 2/17/17 with a valuation of performance measurement period ("measurement period") that ended 12/31/19. RPSRs to be settled at 200% of target. The shares are anticipated to be distributed into the participant's account on February 14, 2020.

SEC source: 0001225208-20-002416 · doc4.xml · nonDerivative · entry 1

Pamiljans Janis G · CIK 0001701037 · CVP, Pres, Aeronautics Systems

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 16,312.2

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: Shares expected to be issued in settlement of Restricted Performance Stock Rights ("RPSRs") granted under the 2011 Long-Term Incentive Stock Plan ("LTISP") on 2/17/17 with a valuation of performance measurement period ("measurement period") that ended 12/31/19. RPSRs to be settled at 119% of target. The shares are anticipated to be distributed into the participant's account on February 14, 2020.

SEC source: 0001225208-20-002414 · doc4.xml · derivative · entry 5

Kalan Lesley A · CIK 0001725864 · CVP, Chief Strategy & Dev Ofc

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,616

Underlying: Common Stock · 1,527 shares

Expires not disclosed

F7 · derivative.exercise_price: Each Restricted Stock Right ("RSR") represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the election of the Issuer's Compensation Committee, cash or a combination of cash and Issuer common stock. The RSRs were granted under the LTISP on 2/12/20 and will vest on 2/12/23.

F7 · derivative.exercise_date: Each Restricted Stock Right ("RSR") represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the election of the Issuer's Compensation Committee, cash or a combination of cash and Issuer common stock. The RSRs were granted under the LTISP on 2/12/20 and will vest on 2/12/23.

F7 · derivative.expiration_date: Each Restricted Stock Right ("RSR") represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the election of the Issuer's Compensation Committee, cash or a combination of cash and Issuer common stock. The RSRs were granted under the LTISP on 2/12/20 and will vest on 2/12/23.

F8 · balance_after: Total amount includes 1,527 RSRs granted under the LTISP on 2/12/20 that will vest on 2/12/23; 1,751 RSRs granted under the LTISP on 2/13/19 that will vest on 2/13/22; 1,445 RSRs granted under the LTISP on 2/13/18 that will vest on 2/13/21; and 893 RSRs granted under the LTISP on 2/17/17 that will vest on 2/18/20.

SEC source: 0001225208-20-002414 · doc4.xml · derivative · entry 4

Kalan Lesley A · CIK 0001725864 · CVP, Chief Strategy & Dev Ofc

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,919

Underlying: Common Stock · 4,168 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_price: Each RPSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock. The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period. Grants awarded pursuant to Rule 16b-3(d).

F1 · shares: Shares expected to be issued in settlement of Restricted Performance Stock Rights ("RPSRs") granted under the 2011 Long-Term Incentive Stock Plan ("LTISP") on 2/17/17 with a valuation of performance measurement period ("measurement period") that ended 12/31/19. RPSRs to be settled at 200% of target. The shares are anticipated to be distributed into the participant's account on February 14, 2020.

F3 · derivative.exercise_date: Each RPSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock. The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period. Grants awarded pursuant to Rule 16b-3(d).

F3 · derivative.expiration_date: Each RPSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock. The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period. Grants awarded pursuant to Rule 16b-3(d).

F6 · balance_after: Total amount includes 3,605 RPSRs granted on 2/12/20 with a measurement period ending on 12/31/22; 4,132 RPSRs granted on 2/13/19 with a measurement period ending on 12/31/21; and 3,182 RPSRs granted on 2/13/18 with a measurement period ending on 12/31/20.

SEC source: 0001225208-20-002414 · doc4.xml · derivative · entry 3

Kalan Lesley A · CIK 0001725864 · CVP, Chief Strategy & Dev Ofc

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,087

Underlying: Common Stock · 5,689 shares

Expires not disclosed

F3 · derivative.exercise_price: Each RPSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock. The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period. Grants awarded pursuant to Rule 16b-3(d).

F4 · shares: The RPSRs acquired include (i) 2,084 vested RPSRs with respect to the measurement period ended 12/31/19 acquired due to settlement of the 2017 RPSRs held at 200% of the target award and (ii) 3,605 unvested RPSRs granted under the LTISP on 2/12/20 with a measurement period ending on 12/31/22.

F3 · derivative.exercise_date: Each RPSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock. The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period. Grants awarded pursuant to Rule 16b-3(d).

F3 · derivative.expiration_date: Each RPSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock. The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period. Grants awarded pursuant to Rule 16b-3(d).

F5 · balance_after: Total amount includes 4,168 vested RPSRs granted under the LTISP on 2/17/17 with a measurement period ended on 12/31/19; 3,605 RPSRs granted on 2/12/20 with a measurement period ending on 12/31/22; 4,132 RPSRs granted on 2/13/19 with a measurement period ending on 12/31/21; and 3,182 RPSRs granted on 2/13/18 with a measurement period ending on 12/31/20.

SEC source: 0001225208-20-002414 · doc4.xml · nonDerivative · entry 2

Kalan Lesley A · CIK 0001725864 · CVP, Chief Strategy & Dev Ofc

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,867.89

F2 · shares: Shares surrendered to issuer in payment of tax liability in connection with settlement of RPSRs in accordance with Rule 16b-3(e)

SEC source: 0001225208-20-002414 · doc4.xml · nonDerivative · entry 1

Kalan Lesley A · CIK 0001725864 · CVP, Chief Strategy & Dev Ofc

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,348.89

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: Shares expected to be issued in settlement of Restricted Performance Stock Rights ("RPSRs") granted under the 2011 Long-Term Incentive Stock Plan ("LTISP") on 2/17/17 with a valuation of performance measurement period ("measurement period") that ended 12/31/19. RPSRs to be settled at 200% of target. The shares are anticipated to be distributed into the participant's account on February 14, 2020.

SEC source: 0001225208-20-002412 · doc4.xml · derivative · entry 5

CHESTON SHEILA C. · CIK 0001499087 · Corp. VP & General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,588

Underlying: Common Stock · 2,206 shares

Expires not disclosed

F7 · derivative.exercise_price: Each Restricted Stock Right ("RSR") represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the election of the Issuer's Compensation Committee, cash or a combination of cash and Issuer common stock. The RSRs were granted under the LTISP on 2/12/20 and will vest on 2/12/23.

F7 · derivative.exercise_date: Each Restricted Stock Right ("RSR") represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the election of the Issuer's Compensation Committee, cash or a combination of cash and Issuer common stock. The RSRs were granted under the LTISP on 2/12/20 and will vest on 2/12/23.

F7 · derivative.expiration_date: Each Restricted Stock Right ("RSR") represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the election of the Issuer's Compensation Committee, cash or a combination of cash and Issuer common stock. The RSRs were granted under the LTISP on 2/12/20 and will vest on 2/12/23.

F8 · balance_after: Total amount includes 2,206 RSRs granted under the LTISP on 2/12/20 that will vest on 2/12/23; 2,845 RSRs granted under the LTISP on 2/13/19 that will vest on 2/13/22; 2,348 RSRs granted under the LTISP on 2/13/18 that will vest on 2/13/21; and 3,189 RSRs granted under the LTISP on 2/17/17 that will vest on 2/18/20.

SEC source: 0001225208-20-002412 · doc4.xml · derivative · entry 4

CHESTON SHEILA C. · CIK 0001499087 · Corp. VP & General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,092

Underlying: Common Stock · 9,074.94 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_price: Each RPSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock. The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period. Grants awarded pursuant to Rule 16b-3(d).

F1 · shares: Shares expected to be issued in settlement of Restricted Performance Stock Rights ("RPSRs") granted under the 2011 Long-Term Incentive Stock Plan ("LTISP") on 2/17/17 with a valuation of performance measurement period ("measurement period") that ended 12/31/19. RPSRs to be settled at 119% of target. The shares are anticipated to be distributed into the participant's account on February 14, 2020.

F3 · derivative.exercise_date: Each RPSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock. The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period. Grants awarded pursuant to Rule 16b-3(d).

F3 · derivative.expiration_date: Each RPSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock. The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period. Grants awarded pursuant to Rule 16b-3(d).

F6 · balance_after: Total amount includes 5,207 RPSRs granted on 2/12/20 with a measurement period ending on 12/31/22; 6,714 RPSRs granted on 2/13/19 with a measurement period ending on 12/31/21; and 5,171 RPSRs granted on 2/13/18 with a measurement period ending on 12/31/20.

SEC source: 0001225208-20-002412 · doc4.xml · derivative · entry 3

CHESTON SHEILA C. · CIK 0001499087 · Corp. VP & General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,166.94

Underlying: Common Stock · 6,655.94 shares

Expires not disclosed

F3 · derivative.exercise_price: Each RPSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock. The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period. Grants awarded pursuant to Rule 16b-3(d).

F4 · shares: The RPSRs acquired include (i) 1,448.94 vested RPSRs with respect to the measurement period ended 12/31/19 acquired due to settlement of the 2017 RPSRs held at 119% of the target award and (ii) 5,207 unvested RPSRs granted under the LTISP on 2/12/20 with a measurement period ending on 12/31/22.

F3 · derivative.exercise_date: Each RPSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock. The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period. Grants awarded pursuant to Rule 16b-3(d).

F3 · derivative.expiration_date: Each RPSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock. The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period. Grants awarded pursuant to Rule 16b-3(d).

F5 · balance_after: Total amount includes 9,074.94 vested RPSRs granted under the LTISP on 2/17/17 with a measurement period ended on 12/31/19; 5,207 RPSRs granted on 2/12/20 with a measurement period ending on 12/31/22; 6,714 RPSRs granted on 12/31/19 with a measurement period ending on 12/31/21; and 5,171 RPSRs granted on 2/13/18 with a measurement period ending on 12/31/20.

SEC source: 0001225208-20-002412 · doc4.xml · nonDerivative · entry 2

CHESTON SHEILA C. · CIK 0001499087 · Corp. VP & General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 39,842.31

F2 · shares: Shares surrendered to issuer in payment of tax liability in connection with settlement of RPSRs in accordance with Rule 16b-3(e)

SEC source: 0001225208-20-002412 · doc4.xml · nonDerivative · entry 1

CHESTON SHEILA C. · CIK 0001499087 · Corp. VP & General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 43,822.31

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: Shares expected to be issued in settlement of Restricted Performance Stock Rights ("RPSRs") granted under the 2011 Long-Term Incentive Stock Plan ("LTISP") on 2/17/17 with a valuation of performance measurement period ("measurement period") that ended 12/31/19. RPSRs to be settled at 119% of target. The shares are anticipated to be distributed into the participant's account on February 14, 2020.

SEC source: 0001225208-20-002413 · doc4.xml · derivative · entry 5

Hardesty Michael A · CIK 0001569355 · Corp VP, Controller & CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,757

Underlying: Common Stock · 594 shares

Expires not disclosed

F7 · derivative.exercise_price: Each Restricted Stock Right ("RSR") represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the election of the Issuer's Compensation Committee, cash or a combination of cash and Issuer common stock. The RSRs were granted under the LTISP on 2/12/20 and will vest on 2/12/23.

F7 · derivative.exercise_date: Each Restricted Stock Right ("RSR") represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the election of the Issuer's Compensation Committee, cash or a combination of cash and Issuer common stock. The RSRs were granted under the LTISP on 2/12/20 and will vest on 2/12/23.

F7 · derivative.expiration_date: Each Restricted Stock Right ("RSR") represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the election of the Issuer's Compensation Committee, cash or a combination of cash and Issuer common stock. The RSRs were granted under the LTISP on 2/12/20 and will vest on 2/12/23.

F8 · balance_after: Total amount includes 594 RSRs granted under the LTISP on 2/12/20 that will vest on 2/12/23; 766 RSRs granted under the LTISP on 2/13/19 that will vest on 2/13/22; 632 RSRs granted under the LTISP on 2/13/18 that will vest on 2/13/21; and 765 RSRs granted under the LTISP on 2/17/17 that will vest on 2/18/20.

SEC source: 0001225208-20-002413 · doc4.xml · derivative · entry 4

Hardesty Michael A · CIK 0001569355 · Corp VP, Controller & CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,649

Underlying: Common Stock · 3,572 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_price: Each RPSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock. The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period. Grants awarded pursuant to Rule 16b-3(d).

F1 · shares: Shares expected to be issued in settlement of Restricted Performance Stock Rights ("RPSRs") granted under the 2011 Long-Term Incentive Stock Plan ("LTISP") on 2/17/17 with a valuation of performance measurement period ("measurement period") that ended 12/31/19. RPSRs to be settled at 200% of target. The shares are anticipated to be distributed into the participant's account on February 14, 2020.

F3 · derivative.exercise_date: Each RPSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock. The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period. Grants awarded pursuant to Rule 16b-3(d).

F3 · derivative.expiration_date: Each RPSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock. The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period. Grants awarded pursuant to Rule 16b-3(d).

F6 · balance_after: Total amount includes 1,386 RPSRs granted on 2/12/20 with a measurement period ending on 12/31/22; 1,788 RPSRs granted on 2/13/19 with a measurement period ending on 12/31/21; and 1,475 RPSRs granted on 2/13/18 with a measurement period ending on 12/31/20.

SEC source: 0001225208-20-002413 · doc4.xml · derivative · entry 3

Hardesty Michael A · CIK 0001569355 · Corp VP, Controller & CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,221

Underlying: Common Stock · 3,172 shares

Expires not disclosed

F3 · derivative.exercise_price: Each RPSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock. The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period. Grants awarded pursuant to Rule 16b-3(d).

F4 · shares: The RPSRs acquired include (i) 1,786 vested RPSRs with respect to the measurement period ended 12/31/19 acquired due to settlement of the 2017 RPSRs held at 200% of the target award and (ii) 1,386 unvested RPSRs granted under the LTISP on 2/12/20 with a measurement period ending on 12/31/22.

F3 · derivative.exercise_date: Each RPSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock. The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period. Grants awarded pursuant to Rule 16b-3(d).

F3 · derivative.expiration_date: Each RPSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock. The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period. Grants awarded pursuant to Rule 16b-3(d).

F5 · balance_after: Total amount includes 3,572 vested RPSRs granted under the LTISP on 2/17/17 with a measurement period ended on 12/31/19; 1,386 RPSRs granted on 2/12/20 with a measurement period ending on 12/31/22; 1,788 RPSRs granted on 2/13/19 with a measurement period ending on 12/31/21; and 1,475 RPSRs granted on 2/13/18 with a measurement period ending on 12/31/20.

SEC source: 0001225208-20-002413 · doc4.xml · nonDerivative · entry 2

Hardesty Michael A · CIK 0001569355 · Corp VP, Controller & CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,163.2

F2 · shares: Shares surrendered to issuer in payment of tax liability in connection with settlement of RPSRs in accordance with Rule 16b-3(e)

SEC source: 0001225208-20-002413 · doc4.xml · nonDerivative · entry 1

Hardesty Michael A · CIK 0001569355 · Corp VP, Controller & CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,378.2

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: Shares expected to be issued in settlement of Restricted Performance Stock Rights ("RPSRs") granted under the 2011 Long-Term Incentive Stock Plan ("LTISP") on 2/17/17 with a valuation of performance measurement period ("measurement period") that ended 12/31/19. RPSRs to be settled at 200% of target. The shares are anticipated to be distributed into the participant's account on February 14, 2020.

SEC source: 0001225208-20-002411 · doc4.xml · derivative · entry 6

Caylor Mark A · CIK 0001559097 · CVP & Pres, Mission Systems

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,380

Underlying: Common Stock · 2,545 shares

Expires not disclosed

F8 · derivative.exercise_price: Each Restricted Stock Right ("RSR") represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the election of the Issuer's Compensation Committee, cash or a combination of cash and Issuer common stock. The RSRs were granted under the LTISP on 2/12/20 and will vest on 2/12/23.

F8 · derivative.exercise_date: Each Restricted Stock Right ("RSR") represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the election of the Issuer's Compensation Committee, cash or a combination of cash and Issuer common stock. The RSRs were granted under the LTISP on 2/12/20 and will vest on 2/12/23.

F8 · derivative.expiration_date: Each Restricted Stock Right ("RSR") represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the election of the Issuer's Compensation Committee, cash or a combination of cash and Issuer common stock. The RSRs were granted under the LTISP on 2/12/20 and will vest on 2/12/23.

F9 · balance_after: Total amount includes 2,545 RSRs granted under the LTISP on 2/12/20 that will vest on 2/12/23; 3,830 RSRs granted under the LTISP on 2/13/19 that will vest on 2/13/22; 1,655 RSRs granted under the LTISP on 12/4/18 that will vest on 12/4/21; 3,161 RSRs granted under the LTISP on 2/13/18 that will vest on 2/13/21; and 3,189 RSRs granted under the LTISP on 2/17/17 that will vest on 2/18/20.

SEC source: 0001225208-20-002411 · doc4.xml · derivative · entry 5

Caylor Mark A · CIK 0001559097 · CVP & Pres, Mission Systems

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,008

Underlying: Common Stock · 9,074.94 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · derivative.exercise_price: Each RPSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock. The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period. Grants awarded pursuant to Rule 16b-3(d).

F1 · shares: Shares expected to be issued in settlement of Restricted Performance Stock Rights ("RPSRs") granted under the 2011 Long-Term Incentive Stock Plan ("LTISP") on 2/17/17 with a valuation of performance measurement period ("measurement period") that ended 12/31/19. RPSRs to be settled at 119% of target. The shares are anticipated to be distributed into the participant's account on February 14, 2020.

F4 · derivative.exercise_date: Each RPSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock. The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period. Grants awarded pursuant to Rule 16b-3(d).

F4 · derivative.expiration_date: Each RPSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock. The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period. Grants awarded pursuant to Rule 16b-3(d).

F7 · balance_after: Total amount includes 6,009 RPSRs granted on 2/12/20 with a measurement period ending on 12/31/22; 9,038 RPSRs granted on 2/13/19 with a measurement period ending on 12/31/21; and 6,961 RPSRs granted on 2/13/18 with a measurement period ending on 12/31/20.

SEC source: 0001225208-20-002411 · doc4.xml · derivative · entry 4

Caylor Mark A · CIK 0001559097 · CVP & Pres, Mission Systems

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 31,082.94

Underlying: Common Stock · 7,457.94 shares

Expires not disclosed

F4 · derivative.exercise_price: Each RPSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock. The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period. Grants awarded pursuant to Rule 16b-3(d).

F5 · shares: The RPSRs acquired include (i) 1,448.94 vested RPSRs with respect to the measurement period ended 12/31/19 acquired due to settlement of the 2017 RPSRs held at 119% of the target award and (ii) 6,009 unvested RPSRs granted under the LTISP on 2/12/20 with a measurement period ending on 12/31/22.

F4 · derivative.exercise_date: Each RPSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock. The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period. Grants awarded pursuant to Rule 16b-3(d).

F4 · derivative.expiration_date: Each RPSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock. The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period. Grants awarded pursuant to Rule 16b-3(d).

F6 · balance_after: Total amount includes 9,074.94 vested RPSRs granted under the LTISP on 2/17/17 with a measurement period ended on 12/31/19; 6,009 RPSRs granted on 2/12/20 with a measurement period ending on 12/31/22; 9,038 RPSRs granted on 2/13/19 with a measurement period ending on 12/31/21; and 6,961 RPSRs granted on 2/13/18 with a measurement period ending on 12/31/20.

SEC source: 0001225208-20-002411 · doc4.xml · nonDerivative · entry 2

Caylor Mark A · CIK 0001559097 · CVP & Pres, Mission Systems

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,974.1

F2 · shares: Shares surrendered to issuer in payment of tax liability in connection with settlement of RPSRs in accordance with Rule 16b-3(e)

SEC source: 0001225208-20-002411 · doc4.xml · nonDerivative · entry 1

Caylor Mark A · CIK 0001559097 · CVP & Pres, Mission Systems

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 24,954.1

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: Shares expected to be issued in settlement of Restricted Performance Stock Rights ("RPSRs") granted under the 2011 Long-Term Incentive Stock Plan ("LTISP") on 2/17/17 with a valuation of performance measurement period ("measurement period") that ended 12/31/19. RPSRs to be settled at 119% of target. The shares are anticipated to be distributed into the participant's account on February 14, 2020.

SEC source: 0001225208-20-002410 · doc4.xml · derivative · entry 2

Addison Ann M · CIK 0001682425 · Corp VP & Chief HR Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,169

Underlying: Common Stock · 1,527 shares

Expires not disclosed

F4 · derivative.exercise_price: Each Restricted Stock Right ("RSR") represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the election of the Issuer's Compensation Committee, cash or a combination of cash and Issuer common stock. The RSRs were granted under the LTISP on 2/12/20 and will vest on 2/12/23.

F4 · derivative.exercise_date: Each Restricted Stock Right ("RSR") represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the election of the Issuer's Compensation Committee, cash or a combination of cash and Issuer common stock. The RSRs were granted under the LTISP on 2/12/20 and will vest on 2/12/23.

F4 · derivative.expiration_date: Each Restricted Stock Right ("RSR") represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the election of the Issuer's Compensation Committee, cash or a combination of cash and Issuer common stock. The RSRs were granted under the LTISP on 2/12/20 and will vest on 2/12/23.

F5 · balance_after: Total amount includes 1,527 RSRs granted under the LTISP on 2/12/20 that will vest on 2/12/23; 1,751 RSRs granted under the LTISP on 2/13/19 that will vest on 2/13/22; and 891 RSRs granted under the LTISP on 10/30/18 that will vest on 10/30/21.

SEC source: 0001225208-20-002410 · doc4.xml · derivative · entry 1

Addison Ann M · CIK 0001682425 · Corp VP & Chief HR Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,353

Underlying: Common Stock · 3,605 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Restricted Performance Stock Right ("RPSR") represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock. The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period. Grants awarded pursuant to Rule 16b-3(d).

F2 · shares: These unvested RPSRs were granted under the 2011 Long-Term Incentive Stock Plan ("LTISP") on 2/12/20 with a measurement period ending on 12/31/22.

F1 · derivative.exercise_date: Each Restricted Performance Stock Right ("RPSR") represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock. The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period. Grants awarded pursuant to Rule 16b-3(d).

F1 · derivative.expiration_date: Each Restricted Performance Stock Right ("RPSR") represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the Issuer's election, cash or a combination of cash and Issuer common stock. The RPSRs vest if the applicable performance metric is satisfied for the relevant measurement period. Grants awarded pursuant to Rule 16b-3(d).

F3 · balance_after: Total amount includes 3,605 RPSRs granted on 2/12/20 with a measurement period ending on 12/31/22; 4,132 RPSRs granted on 2/13/19 with a measurement period ending on 12/31/21; and 2,616 RPSRs granted on 10/31/18 with a measurement period ending on 12/31/20.

SEC source: 0001225208-20-001944 · doc4.xml · nonDerivative · entry 1

Petryszyn Mary D · CIK 0001791724 · CVP, Pres, Defense Systems

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,712.72

F1 · price: Represents the weighted average sale price of $362.27 rounded to the nearest hundredth. The highest price at which the shares were sold was $362.33 and the lowest price at which the shares were sold was $362.258. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote in this Form 4.

SEC source: 0001225208-20-001588 · doc4.xml · nonDerivative · entry 1

Bedingfield Kenneth L · CIK 0001539147 · Corp VP, CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 35,393.82

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

SEC source: 0001225208-20-000263 · doc4.xml · nonDerivative · entry 1

Brown Marianne · CIK 0001600605 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,367

F1 · kind: Represents shares of common stock deferred into a stock unit account pursuant to the Northrop Grumman 2011 Long-Term Incentive Stock Plan (the "Plan") in a transaction exempt pursuant to Rule 16b-3.

F1 · shares: Represents shares of common stock deferred into a stock unit account pursuant to the Northrop Grumman 2011 Long-Term Incentive Stock Plan (the "Plan") in a transaction exempt pursuant to Rule 16b-3.

F2 · balance_after: Represents shares of common stock, including dividends, held in a stock unit account pursuant to the Plan. Dividends earned on shares held in the stock unit account were exempt from Section 16 and not reportable under Rule 16a-11.

SEC source: 0001225208-20-000266 · doc4.xml · derivative · entry 3

Larson Blake E · CIK 0001313857 · CVP & Pres, NG Space Systems

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,114

Underlying: Common Stock · 5,505 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_price: Each RSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the election of the Issuer's Compensation Committee, cash or a combination of cash and Issuer common stock.

F1 · shares: Shares issued upon vesting of Restricted Stock Rights ("RSRs") granted under the 2011 Long-Term Incentive Stock Plan ("LTISP") on 6/13/18 that vested on 12/31/19.

F3 · derivative.exercise_date: Each RSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the election of the Issuer's Compensation Committee, cash or a combination of cash and Issuer common stock.

F1 · derivative.expiration_date: Shares issued upon vesting of Restricted Stock Rights ("RSRs") granted under the 2011 Long-Term Incentive Stock Plan ("LTISP") on 6/13/18 that vested on 12/31/19.

F4 · balance_after: Total amount includes 2,831 RSRs granted under the LTISP on 6/13/18 that will vest on 6/13/21; and 3,283 RSRs granted under the LTISP on 2/13/19 that will vest on 2/13/22.

SEC source: 0001225208-20-000266 · doc4.xml · nonDerivative · entry 2

Larson Blake E · CIK 0001313857 · CVP & Pres, NG Space Systems

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,989

F2 · shares: Shares surrendered to issuer in payment of tax liability in connection with vesting of RSRs in accordance with Rule 16b-3(e).

SEC source: 0001225208-20-000266 · doc4.xml · nonDerivative · entry 1

Larson Blake E · CIK 0001313857 · CVP & Pres, NG Space Systems

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,101

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: Shares issued upon vesting of Restricted Stock Rights ("RSRs") granted under the 2011 Long-Term Incentive Stock Plan ("LTISP") on 6/13/18 that vested on 12/31/19.

SEC source: 0001225208-20-000264 · doc4.xml · nonDerivative · entry 1

KRAPEK KARL J · CIK 0001238288 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 27,679

F1 · kind: Represents shares of common stock deferred into a stock unit account pursuant to the Northrop Grumman 2011 Long-Term Incentive Stock Plan (the "Plan") in a transaction exempt pursuant to Rule 16b-3.

F1 · shares: Represents shares of common stock deferred into a stock unit account pursuant to the Northrop Grumman 2011 Long-Term Incentive Stock Plan (the "Plan") in a transaction exempt pursuant to Rule 16b-3.

F2 · balance_after: Total amount includes (i) 4,856 shares of common stock and (ii) 22,823 shares of common stock, including dividends, held in a stock unit account pursuant to the Northrop Grumman 2011 Long-Term Incentive Stock Plan and the 1993 Stock Plan for Non-Employee Directors. Dividends earned on shares held in the stock unit account were exempt from Section 16 and not reportable under Rule 16a-11.

SEC source: 0001225208-19-013987 · doc4.xml · derivative · entry 4

Addison Ann M · CIK 0001682425 · Corp VP & Chief HR Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,642

Underlying: Common Stock · 5,146 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · derivative.exercise_price: Each RSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the election of the Issuer's Compensation Committee, cash or a combination of cash and Issuer common stock.

F1 · shares: Shares issued upon vesting of Restricted Stock Rights ("RSRs") granted under the 2011 Long-Term Incentive Stock Plan ("LTISP") on 10/30/18 that vested on 10/30/19.

F4 · derivative.exercise_date: Each RSR represents a contingent right to receive an equivalent number of shares of Issuer common stock, or, at the election of the Issuer's Compensation Committee, cash or a combination of cash and Issuer common stock.

F1 · derivative.expiration_date: Shares issued upon vesting of Restricted Stock Rights ("RSRs") granted under the 2011 Long-Term Incentive Stock Plan ("LTISP") on 10/30/18 that vested on 10/30/19.

F5 · balance_after: Total amount includes 1,751 RSRs granted under the LTISP on 2/13/19 that will vest on 2/13/22; and 891 RSRs granted under the LTISP on 10/30/18 that will vest on 10/30/21.

SEC source: 0001225208-19-013987 · doc4.xml · nonDerivative · entry 2

Addison Ann M · CIK 0001682425 · Corp VP & Chief HR Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,748

F2 · shares: Shares surrendered to issuer in payment of tax liability in connection with vesting of RSRs in accordance with Rule 16b-3(e).

SEC source: 0001225208-19-013987 · doc4.xml · nonDerivative · entry 1

Addison Ann M · CIK 0001682425 · Corp VP & Chief HR Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,146

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: Shares issued upon vesting of Restricted Stock Rights ("RSRs") granted under the 2011 Long-Term Incentive Stock Plan ("LTISP") on 10/30/18 that vested on 10/30/19.

SEC source: 0001225208-19-013036 · doc4.xml · nonDerivative · entry 1

KRAPEK KARL J · CIK 0001238288 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 27,500

F1 · kind: Represents shares of common stock deferred into a stock unit account pursuant to the Northrop Grumman 2011 Long-Term Incentive Stock Plan (the "Plan") in a transaction exempt pursuant to Rule 16b-3.

F1 · shares: Represents shares of common stock deferred into a stock unit account pursuant to the Northrop Grumman 2011 Long-Term Incentive Stock Plan (the "Plan") in a transaction exempt pursuant to Rule 16b-3.

F2 · balance_after: Total amount includes (i) 4,856 shares of common stock; and (ii) 22,644 shares of common stock, including dividends, held in a stock unit account pursuant to the Northrop Grumman 2011 Long-Term Incentive Stock Plan and the 1993 Stock Plan for Non-Employee Directors. Dividends earned on shares held in the stock unit account were exempt from Section 16 and not reportable under Rule 16a-11.

SEC source: 0001225208-19-013035 · doc4.xml · nonDerivative · entry 1

Brown Marianne · CIK 0001600605 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,252

F1 · kind: Represents shares of common stock deferred into a stock unit account pursuant to the Northrop Grumman 2011 Long-Term Incentive Stock Plan (the "Plan") in a transaction exempt pursuant to Rule 16b-3.

F1 · shares: Represents shares of common stock deferred into a stock unit account pursuant to the Northrop Grumman 2011 Long-Term Incentive Stock Plan (the "Plan") in a transaction exempt pursuant to Rule 16b-3.

F2 · balance_after: Represents shares of common stock, including dividends, held in a stock unit account pursuant to the Northrop Grumman 2011 Long-Term Incentive Stock Plan. Dividends earned on shares held in the stock unit account were exempt from Section 16 and not reported under Rule 16a-11.

SEC source: 0001225208-19-011787 · doc4.xml · nonDerivative · entry 1

Jones Christopher T · CIK 0001559104 · Corp VP & Pres Tech Svcs

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 62,828.899

SEC source: 0001225208-19-011693 · doc4.xml · nonDerivative · entry 1

Jones Christopher T · CIK 0001559104 · Corp VP & Pres Tech Svcs

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 62,900.899

SEC source: 0001225208-19-010726 · doc4.xml · nonDerivative · entry 4

Warden Kathy J · CIK 0001559112 · Director · CEO and President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 92,894.85

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

F5 · price: Represents the weighted average sale price of $353.19 rounded to the nearest hundredth. The highest price at which the shares were sold was $353.67 and the lowest price at which the shares were sold was $352.68. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote in this Form 4.

SEC source: 0001225208-19-010726 · doc4.xml · nonDerivative · entry 3

Warden Kathy J · CIK 0001559112 · Director · CEO and President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 95,626.85

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

F4 · price: Represents the weighted average sale price of $354.15 rounded to the nearest hundredth. The highest price at which the shares were sold was $354.62 and the lowest price at which the shares were sold was $353.75. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote in this Form 4.

SEC source: 0001225208-19-010726 · doc4.xml · nonDerivative · entry 2

Warden Kathy J · CIK 0001559112 · Director · CEO and President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 97,601.85

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

F3 · price: Represents the weighted average sale price of $352.09 rounded to the nearest hundredth. The highest price at which the shares were sold was $352.485 and the lowest price at which the shares were sold was $351.52. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote in this Form 4.

SEC source: 0001225208-19-010726 · doc4.xml · nonDerivative · entry 1

Warden Kathy J · CIK 0001559112 · Director · CEO and President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 99,001.85

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

F2 · price: Represents the weighted average sale price of $355.21 rounded to the nearest hundredth. The highest price at which the shares were sold was $355.60 and the lowest price at which the shares were sold was $354.85. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote in this Form 4.

SEC source: 0001225208-19-010724 · doc4.xml · nonDerivative · entry 4

Jones Christopher T · CIK 0001559104 · Corp VP & Pres Tech Svcs

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 62,972.899

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

F5 · price: Represents the weighted average sale price of $353.07 rounded to the nearest hundredth. The highest price at which the shares were sold was $353.47 and the lowest price at which the shares were sold was $352.48. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote in this Form 4.

SEC source: 0001225208-19-010724 · doc4.xml · nonDerivative · entry 3

Jones Christopher T · CIK 0001559104 · Corp VP & Pres Tech Svcs

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 65,742.899

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

F4 · price: Represents the weighted average sale price of $352.05 rounded to the nearest hundredth. The highest price at which the shares were sold was $352.345 and the lowest price at which the shares were sold was $351.47. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote in this Form 4.

SEC source: 0001225208-19-010724 · doc4.xml · nonDerivative · entry 2

Jones Christopher T · CIK 0001559104 · Corp VP & Pres Tech Svcs

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 66,842.899

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

F3 · price: Represents the weighted average sale price of $353.86 rounded to the nearest hundredth. The highest price at which the shares were sold was $354.10 and the lowest price at which the shares were sold was $353.57. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote in this Form 4.

SEC source: 0001225208-19-010724 · doc4.xml · nonDerivative · entry 1

Jones Christopher T · CIK 0001559104 · Corp VP & Pres Tech Svcs

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 67,421.899

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

F2 · price: Represents the weighted average sale price of $355.39 rounded to the nearest hundredth. The highest price at which the shares were sold was $355.78 and the lowest price at which the shares were sold was $355.02. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote in this Form 4.

SEC source: 0001225208-19-009807 · doc4.xml · nonDerivative · entry 1

Brown Marianne · CIK 0001600605 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,147

F1 · kind: Represents shares of common stock deferred into a stock unit account pursuant to the Northrop Grumman 2011 Long-Term Incentive Stock Plan (the "Plan") in a transaction exempt pursuant to Rule 16b-3.

F1 · shares: Represents shares of common stock deferred into a stock unit account pursuant to the Northrop Grumman 2011 Long-Term Incentive Stock Plan (the "Plan") in a transaction exempt pursuant to Rule 16b-3.

F2 · balance_after: Represents shares of common stock, including dividends, held in a stock unit account pursuant to the Northrop Grumman 2011 Long-Term Incentive Stock Plan. Dividends earned on shares held in the stock unit account were exempt from Section 16 and not reportable under rule 16a-11.