Northrop Grumman Corp (NOC)

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Over the last 90 days, Northrop Grumman Corp. has seen 12 insider transactions, all of which were sales totaling approximately $1.62 million. Notably, Director Mark A. Welsh III and Officer Kathryn G. Simpson executed significant planned and proposed sales. The company's stock has experienced a notable decline of 23.0% over the past 90 days.

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Ticker: NOC Exchange: NYS

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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Activity signal Earnings

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Trades

WELSH MARK A III

11 sales — total 54,310 USD

Planned sale 4 May 2026

Value US$2,746,588.31 | Price 467.58 | Shares 56,348

Planned sale 4 May 2026

Value US$585,306.35 | Price 56.96 | Shares 24,167

Planned sale 4 May 2026

Value US$2,302.36 | Price 575.59 | Shares 4

Planned sale 4 May 2026

Value US$1,149.02 | Price 574.51 | Shares 2

Planned sale 4 May 2026

Value US$8,029.14 | Price 573.51 | Shares 14

Planned sale 4 May 2026

Value US$3,436.32 | Price 572.72 | Shares 6

Planned sale 4 May 2026

Value US$1,715.22 | Price 571.74 | Shares 3

Planned sale 4 May 2026

Value US$24,530.21 | Price 570.47 | Shares 43

Planned sale 4 May 2026

Value US$5,125.41 | Price 569.49 | Shares 9

Planned sale 4 May 2026

Value US$2,843.75 | Price 568.75 | Shares 5

Planned sale 4 May 2026

Value US$566.60 | Price 566.60 | Shares 1

Mark A. Welsh III

Director

1 sale — total 107,947 USD

Proposed sale 4 May 2026

Value US$1,471,001.33 | Price 111.01 | Shares 25,220

Simpson Kathryn G

Corp VP & General Counsel

2 sales — total 1,300,770 USD

Planned sale 2 Mar 2026

Value US$650,385.00 | Price 745.00 | Shares 873

Proposed sale 2 Mar 2026

Value US$650,385.00 | Price 745.00 | Shares 873

ROEDER ROSHAN S

CVP & Pres. Mission Systems

2 sales — total 2,525,760 USD

Planned sale 27 Feb 2026

Value US$1,262,880.00 | Price 720.00 | Shares 1,754

Proposed sale 27 Feb 2026

Value US$1,262,880.00 | Price 720.00 | Shares 1,754

Simpson Kathryn G

Corp VP & General Counsel

2 sales — total 282,317 USD

Planned sale 19 Feb 2026

Value US$141,158.28 | Price 727.62 | Shares 194

Proposed sale 19 Feb 2026

Value US$141,158.28 | Price 727.62 | Shares 194

ROEDER ROSHAN S

CVP & Pres. Mission Systems

2 sales — total 745,083 USD

Planned sale 19 Feb 2026

Value US$372,541.44 | Price 727.62 | Shares 512

Proposed sale 19 Feb 2026

Value US$372,541.44 | Price 727.62 | Shares 512

Hardesty Michael A

Corp VP, Controller & CAO

2 sales — total 215,496 USD

Sale 19 Feb 2026

Value US$107,748.06 | Price 732.98 | Shares 147

Proposed sale 19 Feb 2026

Value US$107,748.06 | Price 732.98 | Shares 147

Davies Benjamin R.

CVP & Pres. Defense Systems

2 sales — total 3,150,500 USD

Sale 18 Feb 2026

Value US$1,575,255.07 | Price 719.61 | Shares 2,189

Proposed sale 18 Feb 2026

Value US$1,575,245.00 | Price 719.29 | Shares 2,190

Hardesty Michael A

Corp VP, Controller & CAO

2 sales — total 1,003,218 USD

Sale 17 Feb 2026

Value US$501,609.04 | Price 700.63 | Shares 716

Proposed sale 17 Feb 2026

Value US$501,609.04 | Price 700.57 | Shares 716

Simpson Kathryn G

Corp VP & General Counsel

2 sales — total 1,094,588 USD

Planned sale 17 Feb 2026

Value US$547,294.24 | Price 702.56 | Shares 779

Proposed sale 17 Feb 2026

Value US$547,294.24 | Price 702.56 | Shares 779

ROEDER ROSHAN S

CVP & Pres. Mission Systems

2 sales — total 446,828 USD

Planned sale 17 Feb 2026

Value US$223,414.08 | Price 702.56 | Shares 318

Proposed sale 17 Feb 2026

Value US$223,414.08 | Price 698.17 | Shares 320

Hardesty Michael A

Corp VP, Controller & CAO

3 sales — total 1,100,821 USD

Sale 13 Feb 2026

Value US$407.86 | Price 703.21 | Shares 1

Sale 13 Feb 2026

Value US$550,002.69 | Price 702.43 | Shares 783

Proposed sale 13 Feb 2026

Value US$550,410.63 | Price 702.05 | Shares 784

Warden Kathy J

Chair, CEO and President

8 sales — total 28,352,892 USD

Sale 6 Feb 2026

Value US$928,748.84 | Price 711.14 | Shares 1,306

Sale 6 Feb 2026

Value US$2,523,198.72 | Price 710.36 | Shares 3,552

Sale 6 Feb 2026

Value US$4,068,215.66 | Price 709.49 | Shares 5,734

Sale 6 Feb 2026

Value US$1,631,974.89 | Price 708.63 | Shares 2,303

Sale 6 Feb 2026

Value US$3,321,477.75 | Price 707.45 | Shares 4,695

Sale 6 Feb 2026

Value US$1,551,803.40 | Price 706.65 | Shares 2,196

Sale 6 Feb 2026

Value US$151,049.76 | Price 705.84 | Shares 214

Proposed sale 6 Feb 2026

Value US$14,176,423.20 | Price 708.82 | Shares 20,000

WELSH MARK A III

23 sales — total 128,706 USD

Planned sale 2 Feb 2026

Value US$3,446.55 | Price 689.31 | Shares 5

Planned sale 2 Feb 2026

Value US$6,885.10 | Price 688.51 | Shares 10

Planned sale 2 Feb 2026

Value US$5,501.12 | Price 687.64 | Shares 8

Planned sale 2 Feb 2026

Value US$7,550.73 | Price 686.43 | Shares 11

Planned sale 2 Feb 2026

Value US$6,853.30 | Price 685.33 | Shares 10

Planned sale 2 Feb 2026

Value US$4,792.69 | Price 684.67 | Shares 7

Planned sale 2 Feb 2026

Value US$4,102.74 | Price 683.79 | Shares 6

Planned sale 2 Feb 2026

Value US$15,014.34 | Price 682.47 | Shares 22

Planned sale 2 Feb 2026

Value US$5,453.44 | Price 681.68 | Shares 8

Planned sale 2 Feb 2026

Value US$2,721.96 | Price 680.49 | Shares 4

Planned sale 2 Feb 2026

Value US$1,354.86 | Price 677.43 | Shares 2

Planned sale 2 Feb 2026

Value US$3,446.55 | Price 689.31 | Shares 5

Planned sale 2 Feb 2026

Value US$6,885.10 | Price 688.51 | Shares 10

Planned sale 2 Feb 2026

Value US$5,501.12 | Price 687.64 | Shares 8

Planned sale 2 Feb 2026

Value US$7,550.73 | Price 686.43 | Shares 11

Planned sale 2 Feb 2026

Value US$6,853.30 | Price 685.33 | Shares 10

Planned sale 2 Feb 2026

Value US$4,792.69 | Price 684.67 | Shares 7

Planned sale 2 Feb 2026

Value US$4,102.74 | Price 683.79 | Shares 6

Planned sale 2 Feb 2026

Value US$15,014.34 | Price 682.47 | Shares 22

Planned sale 2 Feb 2026

Value US$5,453.44 | Price 681.68 | Shares 8

Planned sale 2 Feb 2026

Value US$2,721.96 | Price 680.49 | Shares 4

Planned sale 2 Feb 2026

Value US$1,354.86 | Price 677.43 | Shares 2

Planned sale 2 Feb 2026

Value US$1,352.28 | Price 676.14 | Shares 2

Warden Kathy J

Chair, CEO and President

2 sales — total 3,690,000 USD

Planned sale 6 Jan 2026

Value US$1,845,000.00 | Price 615.00 | Shares 3,000

Proposed sale 6 Jan 2026

Value US$1,845,000.00 | Price 615.00 | Shares 3,000

Warden Kathy J

Chair, CEO and President

2 sales — total 8,400,000 USD

Planned sale 5 Jan 2026

Value US$4,200,000.00 | Price 600.00 | Shares 7,000

Proposed sale 5 Jan 2026

Value US$4,200,000.00 | Price 600.00 | Shares 7,000

ROEDER ROSHAN S

CVP & Pres. Mission Systems

2 sales — total 93,299 USD

Planned sale 9 Dec 2025

Value US$46,649.40 | Price 555.35 | Shares 84

Proposed sale 9 Dec 2025

Value US$46,649.40 | Price 555.35 | Shares 84

WELSH MARK A III

5 sales — total 50,786 USD

Planned sale 24 Nov 2025

Value US$566.15 | Price 566.15 | Shares 1

Planned sale 24 Nov 2025

Value US$6,783.72 | Price 565.31 | Shares 12

Planned sale 24 Nov 2025

Value US$34,425.96 | Price 564.36 | Shares 61

Planned sale 24 Nov 2025

Value US$5,072.58 | Price 563.62 | Shares 9

Planned sale 24 Nov 2025

Value US$3,937.64 | Price 562.52 | Shares 7

Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other

Notification date	Transaction date	B/S Transaction type	Insider and/or position	Nb. shares Price Value	Number of shares	Price	Value
2026-05-05	2026-05-04	PlS Planned sale	WELSH MARK A III Non-Executive Director	56,348 +34.7% 467.58 US$2,746,588	56,348 +34.7%	467.58	US$2,746,588
2026-05-05	2026-05-04	PlS Planned sale	WELSH MARK A III Non-Executive Director	24,167 +32.5% 56.96 US$585,306	24,167 +32.5%	56.96	US$585,306
2026-05-05	2026-05-04	PlS Planned sale	WELSH MARK A III Non-Executive Director	55,164 -22.6% 454.61 US$3,578,809	55,164 -22.6%	454.61	US$3,578,809
2026-05-05	2026-05-04	PlS Planned sale	WELSH MARK A III Non-Executive Director	2 -0.0% 574.51 US$1,149	2 -0.0%	574.51	US$1,149
2026-05-05	2026-05-04	PlS Planned sale	WELSH MARK A III Non-Executive Director	14 -0.3% 573.51 US$8,029	14 -0.3%	573.51	US$8,029
2026-05-05	2026-05-04	PlS Planned sale	WELSH MARK A III Non-Executive Director	6 -0.1% 572.72 US$3,436	6 -0.1%	572.72	US$3,436
2026-05-05	2026-05-04	PlS Planned sale	WELSH MARK A III Non-Executive Director	3 -0.1% 571.74 US$1,715	3 -0.1%	571.74	US$1,715
2026-05-05	2026-05-04	PlS Planned sale	WELSH MARK A III Non-Executive Director	43 -1.0% 570.47 US$24,530	43 -1.0%	570.47	US$24,530
2026-05-05	2026-05-04	PlS Planned sale	WELSH MARK A III Non-Executive Director	9 -0.2% 569.49 US$5,125	9 -0.2%	569.49	US$5,125
2026-05-05	2026-05-04	PlS Planned sale	WELSH MARK A III Non-Executive Director	5 -0.1% 568.75 US$2,844	5 -0.1%	568.75	US$2,844
2026-05-05	2026-05-04	PlS Planned sale	WELSH MARK A III Non-Executive Director	1 -0.0% 566.60 US$567	1 -0.0%	566.60	US$567
2026-05-04	2026-05-04	PrS Proposed sale	Mark A. Welsh III Director Non-Executive Director	190 568.14 US$107,947	190	568.14	US$107,947
2026-03-03	2026-03-02	PlS Planned sale	1.9 Simpson Kathryn G Corp VP & General Counsel Officer	873 -99.8% 745.00 US$650,385	873 -99.8%	745.00	US$650,385
2026-03-02	2026-03-02	PrS Proposed sale	1.9 Simpson Kathryn G Officer Officer	873 745.00 US$650,385	873	745.00	US$650,385
2026-03-02	2026-02-27	PlS Planned sale	ROEDER ROSHAN S CVP & Pres. Mission Systems Officer	1,754 -42.7% 720.00 US$1,262,880	1,754 -42.7%	720.00	US$1,262,880
2026-02-27	2026-02-27	PrS Proposed sale	ROEDER ROSHAN S Officer Officer	1,754 720.00 US$1,262,880	1,754	720.00	US$1,262,880
2026-02-20	2026-02-19	PlS Planned sale	1.9 Simpson Kathryn G Corp VP & General Counsel Officer	194 -18.2% 727.62 US$141,158	194 -18.2%	727.62	US$141,158
2026-02-20	2026-02-19	PlS Planned sale	ROEDER ROSHAN S CVP & Pres. Mission Systems Officer	512 -11.1% 727.62 US$372,541	512 -11.1%	727.62	US$372,541
2026-02-20	2026-02-19	S Sale	2.4 Hardesty Michael A Corp VP, Controller & CAO Officer	147 -5.5% 732.98 US$107,748	147 -5.5%	732.98	US$107,748
2026-02-19	2026-02-19	PrS Proposed sale	2.4 Hardesty Michael A Officer Officer	147 732.98 US$107,748	147	732.98	US$107,748
2026-02-19	2026-02-19	PrS Proposed sale	ROEDER ROSHAN S Officer Officer	512 727.62 US$372,541	512	727.62	US$372,541
2026-02-19	2026-02-19	PrS Proposed sale	1.9 Simpson Kathryn G Officer Officer	194 727.62 US$141,158	194	727.62	US$141,158
2026-02-19	2026-02-18	S Sale	Davies Benjamin R. CVP & Pres. Defense Systems Officer	2,189 -93.5% 719.61 US$1,575,255	2,189 -93.5%	719.61	US$1,575,255
2026-02-18	2026-02-18	PrS Proposed sale	Davies Benjamin R. Officer Officer	2,190 719.29 US$1,575,245	2,190	719.29	US$1,575,245
2026-02-19	2026-02-17	S Sale	2.4 Hardesty Michael A Corp VP, Controller & CAO Officer	716 -21.1% 700.63 US$501,609	716 -21.1%	700.63	US$501,609
2026-02-19	2026-02-17	PlS Planned sale	1.9 Simpson Kathryn G Corp VP & General Counsel Officer	779 -42.2% 702.56 US$547,294	779 -42.2%	702.56	US$547,294
2026-02-19	2026-02-17	PlS Planned sale	ROEDER ROSHAN S CVP & Pres. Mission Systems Officer	318 -6.4% 702.56 US$223,414	318 -6.4%	702.56	US$223,414
2026-02-17	2026-02-17	PrS Proposed sale	ROEDER ROSHAN S Officer Officer	320 698.17 US$223,414	320	698.17	US$223,414
2026-02-17	2026-02-17	PrS Proposed sale	2.4 Hardesty Michael A Officer Officer	716 700.57 US$501,609	716	700.57	US$501,609
2026-02-17	2026-02-17	PrS Proposed sale	1.9 Simpson Kathryn G Officer Officer	779 702.56 US$547,294	779	702.56	US$547,294
2026-02-17	2026-02-13	S Sale	2.4 Hardesty Michael A Corp VP, Controller & CAO Officer	1 -0.0% 703.21 US$408	1 -0.0%	703.21	US$408
2026-02-17	2026-02-13	S Sale	2.4 Hardesty Michael A Corp VP, Controller & CAO Officer	783 -20.2% 702.43 US$550,003	783 -20.2%	702.43	US$550,003
2026-02-13	2026-02-13	PrS Proposed sale	2.4 Hardesty Michael A Officer Officer	784 702.05 US$550,411	784	702.05	US$550,411
2026-02-10	2026-02-06	S Sale	2.9 Warden Kathy J Chair, CEO and President Executive Director	1,306 -0.8% 711.14 US$928,749	1,306 -0.8%	711.14	US$928,749
2026-02-10	2026-02-06	S Sale	2.9 Warden Kathy J Chair, CEO and President Executive Director	3,552 -2.0% 710.36 US$2,523,199	3,552 -2.0%	710.36	US$2,523,199
2026-02-10	2026-02-06	S Sale	2.9 Warden Kathy J Chair, CEO and President Executive Director	5,734 -3.1% 709.49 US$4,068,216	5,734 -3.1%	709.49	US$4,068,216
2026-02-10	2026-02-06	S Sale	2.9 Warden Kathy J Chair, CEO and President Executive Director	2,303 -1.2% 708.63 US$1,631,975	2,303 -1.2%	708.63	US$1,631,975
2026-02-10	2026-02-06	S Sale	2.9 Warden Kathy J Chair, CEO and President Executive Director	4,695 -2.5% 707.45 US$3,321,478	4,695 -2.5%	707.45	US$3,321,478
2026-02-10	2026-02-06	S Sale	2.9 Warden Kathy J Chair, CEO and President Executive Director	2,196 -1.1% 706.65 US$1,551,803	2,196 -1.1%	706.65	US$1,551,803
2026-02-10	2026-02-06	S Sale	2.9 Warden Kathy J Chair, CEO and President Executive Director	214 -0.1% 705.84 US$151,050	214 -0.1%	705.84	US$151,050
2026-02-06	2026-02-06	PrS Proposed sale	2.9 Warden Kathy J Officer; Director Executive Director	20,000 708.82 US$14,176,423	20,000	708.82	US$14,176,423
2026-02-03	2026-02-02	PlS Planned sale	WELSH MARK A III Non-Executive Director	5 -0.1% 689.31 US$3,447	5 -0.1%	689.31	US$3,447
2026-02-03	2026-02-02	PlS Planned sale	WELSH MARK A III Non-Executive Director	10 -0.2% 688.51 US$6,885	10 -0.2%	688.51	US$6,885
2026-02-03	2026-02-02	PlS Planned sale	WELSH MARK A III Non-Executive Director	8 -0.2% 687.64 US$5,501	8 -0.2%	687.64	US$5,501
2026-02-03	2026-02-02	PlS Planned sale	WELSH MARK A III Non-Executive Director	11 -0.3% 686.43 US$7,551	11 -0.3%	686.43	US$7,551
2026-02-03	2026-02-02	PlS Planned sale	WELSH MARK A III Non-Executive Director	10 -0.2% 685.33 US$6,853	10 -0.2%	685.33	US$6,853
2026-02-03	2026-02-02	PlS Planned sale	WELSH MARK A III Non-Executive Director	7 -0.2% 684.67 US$4,793	7 -0.2%	684.67	US$4,793
2026-02-03	2026-02-02	PlS Planned sale	WELSH MARK A III Non-Executive Director	6 -0.1% 683.79 US$4,103	6 -0.1%	683.79	US$4,103
2026-02-03	2026-02-02	PlS Planned sale	WELSH MARK A III Non-Executive Director	22 -0.5% 682.47 US$15,014	22 -0.5%	682.47	US$15,014
2026-02-03	2026-02-02	PlS Planned sale	WELSH MARK A III Non-Executive Director	8 -0.2% 681.68 US$5,453	8 -0.2%	681.68	US$5,453
2026-02-03	2026-02-02	PlS Planned sale	WELSH MARK A III Non-Executive Director	4 -0.1% 680.49 US$2,722	4 -0.1%	680.49	US$2,722
2026-02-03	2026-02-02	PlS Planned sale	WELSH MARK A III Non-Executive Director	2 -0.0% 677.43 US$1,355	2 -0.0%	677.43	US$1,355
2026-02-03	2026-02-02	PlS Planned sale	WELSH MARK A III Non-Executive Director	5 -0.1% 689.31 US$3,447	5 -0.1%	689.31	US$3,447
2026-02-03	2026-02-02	PlS Planned sale	WELSH MARK A III Non-Executive Director	10 -0.2% 688.51 US$6,885	10 -0.2%	688.51	US$6,885
2026-02-03	2026-02-02	PlS Planned sale	WELSH MARK A III Non-Executive Director	8 -0.2% 687.64 US$5,501	8 -0.2%	687.64	US$5,501
2026-02-03	2026-02-02	PlS Planned sale	WELSH MARK A III Non-Executive Director	11 -0.3% 686.43 US$7,551	11 -0.3%	686.43	US$7,551
2026-02-03	2026-02-02	PlS Planned sale	WELSH MARK A III Non-Executive Director	10 -0.2% 685.33 US$6,853	10 -0.2%	685.33	US$6,853
2026-02-03	2026-02-02	PlS Planned sale	WELSH MARK A III Non-Executive Director	7 -0.2% 684.67 US$4,793	7 -0.2%	684.67	US$4,793
2026-02-03	2026-02-02	PlS Planned sale	WELSH MARK A III Non-Executive Director	6 -0.1% 683.79 US$4,103	6 -0.1%	683.79	US$4,103
2026-02-03	2026-02-02	PlS Planned sale	WELSH MARK A III Non-Executive Director	22 -0.5% 682.47 US$15,014	22 -0.5%	682.47	US$15,014
2026-02-03	2026-02-02	PlS Planned sale	WELSH MARK A III Non-Executive Director	8 -0.2% 681.68 US$5,453	8 -0.2%	681.68	US$5,453
2026-02-03	2026-02-02	PlS Planned sale	WELSH MARK A III Non-Executive Director	4 -0.1% 680.49 US$2,722	4 -0.1%	680.49	US$2,722
2026-02-03	2026-02-02	PlS Planned sale	WELSH MARK A III Non-Executive Director	2 -0.0% 677.43 US$1,355	2 -0.0%	677.43	US$1,355
2026-02-03	2026-02-02	PlS Planned sale	WELSH MARK A III Non-Executive Director	2 -0.0% 676.14 US$1,352	2 -0.0%	676.14	US$1,352
2026-01-07	2026-01-06	PlS Planned sale	2.9 Warden Kathy J Chair, CEO and President Executive Director	3,000 -1.5% 615.00 US$1,845,000	3,000 -1.5%	615.00	US$1,845,000
2026-01-06	2026-01-06	PrS Proposed sale	2.9 Warden Kathy J Officer; Director Executive Director	3,000 615.00 US$1,845,000	3,000	615.00	US$1,845,000
2026-01-07	2026-01-05	PlS Planned sale	2.9 Warden Kathy J Chair, CEO and President Executive Director	7,000 -3.5% 600.00 US$4,200,000	7,000 -3.5%	600.00	US$4,200,000
2026-01-05	2026-01-05	PrS Proposed sale	2.9 Warden Kathy J Officer; Director Executive Director	7,000 600.00 US$4,200,000	7,000	600.00	US$4,200,000
2025-12-11	2025-12-09	PlS Planned sale	ROEDER ROSHAN S CVP & Pres. Mission Systems Officer	84 -17.2% 555.35 US$46,649	84 -17.2%	555.35	US$46,649
2025-12-09	2025-12-09	PrS Proposed sale	ROEDER ROSHAN S Officer Officer	84 555.35 US$46,649	84	555.35	US$46,649
2025-11-25	2025-11-24	PlS Planned sale	WELSH MARK A III Non-Executive Director	1 -0.0% 566.15 US$566	1 -0.0%	566.15	US$566
2025-11-25	2025-11-24	PlS Planned sale	WELSH MARK A III Non-Executive Director	12 -0.3% 565.31 US$6,784	12 -0.3%	565.31	US$6,784
2025-11-25	2025-11-24	PlS Planned sale	WELSH MARK A III Non-Executive Director	61 -1.4% 564.36 US$34,426	61 -1.4%	564.36	US$34,426
2025-11-25	2025-11-24	PlS Planned sale	WELSH MARK A III Non-Executive Director	9 -0.2% 563.62 US$5,073	9 -0.2%	563.62	US$5,073
2025-11-25	2025-11-24	PlS Planned sale	WELSH MARK A III Non-Executive Director	7 -0.2% 562.52 US$3,938	7 -0.2%	562.52	US$3,938