Northrop Grumman Corporation NOC

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Northrop Grumman Corporation Common Stock · Company · NYSE

Paper trade (simulated — no real money)

Fill: USD 551.4400 · FX 1 USD = 1.277900 SGD · about SGD 704.6852 per unit

Sign in to place simulated trades. USD fills are converted into the SGD portfolio at the displayed rate.

Announcement types: (default: consequential filings)
Results & current reports
Capital markets
Ownership & governance

USD closing-price chart (daily close from yfinance · Last year)

USD 605.74 → 551.44 · -9.0%
768.020620.740473.460 1 2,3 4 5 6,7,8 9 10 11,12 13 14,15 Oct 25Jan 26Apr 26Jul 26Oct 26

Numbered dotted lines mark the filtered filings under Announcement Events below.

Price & SEC Filing History 23 Oct 2025 — 24 Oct 2026 (Last year)

Daily NYSE prices are sourced from yfinance. Yellow highlighting marks an intraday rise or a gap up between adjacent trading sessions. SEC acceptance times are converted to US Eastern time: pre-market filings appear below that day’s OHLCV row; filings accepted after the 09:30 ET open appear above it. The SEC does not publish an exact first-public-availability timestamp, so acceptance time is the best available proxy.

Weekend
546.5900 553.5000 541.3501 551.4400 816,886
544.7000 556.5600 542.5000 552.3500 1,061,200
537.2000 544.3300 535.0000 539.3100 1,186,500
15 · 10-Q After-hours · 20:01 ET 10-Q ↗ 14 · 8-K After market open · 10:00 ET 8-K ↗
523.6400 550.8900 523.6400 534.0000 2,082,100
511.0000 517.1200 508.5000 510.6500 1,024,200
Weekend
Weekend
505.9700 520.5700 503.7500 519.8600 1,320,500
505.6100 508.0900 496.5900 499.6300 1,332,000
485.6000 499.2600 483.2400 495.6900 1,218,900
486.7900 487.2600 479.0000 481.3800 823,300
482.6900 486.6300 480.5000 485.0000 573,400
Weekend
Weekend
480.0400 484.1400 478.3600 480.7200 613,400
474.8200 486.9400 471.3600 484.4800 1,087,300
484.5800 485.5600 472.9700 473.4600 716,400
476.3900 485.7000 474.0000 483.1100 1,010,600
479.9800 480.6600 473.9500 476.1100 1,200,500
Weekend
Weekend
478.9400 481.8600 470.0600 478.0000 2,683,200
483.5100 486.8200 481.4000 482.0000 1,041,600
483.0000 488.4600 479.9000 483.4800 1,475,500
503.2200 508.7500 502.1000 504.6100 694,200
509.0500 513.8400 503.9400 505.8000 557,500
Weekend
Weekend
509.1000 513.2300 507.0100 510.5200 535,400
514.6500 518.8100 508.4300 508.9800 536,900
510.4600 520.8000 510.0700 514.4200 851,900
527.1500 529.0000 505.7500 509.8600 1,000,900
524.4900 527.0300 517.4700 526.6600 1,077,400
Weekend
Weekend
523.6800 528.2700 519.9000 527.3900 1,257,800
530.2100 534.8600 518.3400 524.0000 1,100,000
530.0000 534.4000 527.2300 530.7800 538,000
529.3100 536.6200 524.3600 531.2500 771,200
524.3700 534.3000 521.0100 527.3900 887,200
Weekend
Weekend
522.0000 523.0100 515.2500 518.9700 588,100
517.0500 523.3800 516.0000 518.9500 934,000
521.6700 526.9400 515.5100 515.5700 698,500
516.0000 523.6700 515.0600 518.5800 1,207,400
No trading
Weekend
Weekend
525.5600 525.5600 512.5400 514.9800 912,200
529.2000 534.7000 521.6600 528.2400 874,100
534.8400 535.8600 523.7200 523.8200 759,300
543.1000 549.7700 530.1300 532.9100 499,300
539.6300 541.3000 537.0000 539.7000 764,900
Weekend
Weekend
547.3700 547.6800 542.7900 545.5700 392,900
547.0600 548.3100 542.7400 545.1300 814,000
543.0800 553.6100 543.0800 549.9500 561,200
547.8200 549.7900 540.0400 542.5200 554,000
553.0000 553.0000 546.5000 549.2800 440,900
Weekend
Weekend
13 · 8-K After-hours · 17:06 ET 8-K ↗
566.1400 567.5100 550.1800 551.0300 926,700
580.7400 586.0000 563.4300 563.8600 1,236,100
583.3500 591.5500 578.8500 582.8400 671,700
579.0700 594.5100 576.2000 589.1400 763,800
581.8500 584.9600 569.2500 570.2000 659,800
Weekend
Weekend
579.3600 586.3600 574.4400 585.8700 599,200
578.7200 579.9400 571.9200 574.7400 409,500
571.0700 580.0400 569.5100 577.3200 626,600
575.9400 580.7500 572.9800 575.6900 430,400
575.0000 581.5900 573.1100 577.8900 643,000
Weekend
Weekend
566.8000 572.7500 560.5400 571.5800 442,900
563.8100 568.6800 559.0000 567.7400 603,900
555.8800 557.5700 549.7700 557.4700 627,900
547.7700 555.0000 541.0900 551.5500 753,100
546.0200 557.6100 543.5300 548.4700 672,800
Weekend
Weekend
534.8500 545.2200 530.0800 542.4800 852,900
529.0700 535.0300 519.7700 534.8500 774,600
554.3500 554.9300 534.2400 535.0500 760,300
558.0000 565.4200 548.5800 549.2200 944,000
542.4400 552.0000 542.2200 547.5800 680,100
Weekend
Weekend
535.5000 544.6700 534.4500 542.2400 654,900
537.1900 546.7600 526.3600 533.4800 1,083,600
523.0900 535.6400 518.4700 525.2800 1,056,500
12 · 10-Q After-hours · 16:02 ET 10-Q ↗
490.0000 514.1400 479.0200 512.2900 2,447,000
11 · 8-K Pre-market · 06:45 ET 8-K ↗
523.4800 533.0700 522.7500 523.9600 1,032,000
Weekend
Weekend
525.0700 538.9600 520.6600 521.5700 1,047,500
525.8100 529.4400 517.1600 518.6500 1,270,200
531.8800 535.9200 524.8700 525.2200 824,500
536.8800 544.1100 527.9400 528.6700 773,500
540.5200 545.5400 536.8500 541.8200 633,600
Weekend
Weekend
534.6700 541.0800 529.9400 539.6300 455,700
537.5500 539.6500 528.0200 532.2300 938,000
546.0400 548.1500 539.0000 545.1100 955,400
551.0400 552.6300 544.2800 549.0400 702,800
547.0000 548.5100 537.3700 547.7500 917,800
Weekend
Weekend
No trading
527.8900 549.0100 527.8900 549.0100 1,741,600
514.4400 525.3100 511.0800 519.9500 902,800
499.7600 509.5700 495.1000 509.3100 1,293,300
502.0000 503.8100 493.8400 496.0200 1,149,300
Weekend
Weekend
501.7500 507.2800 498.1300 500.0300 1,584,100
501.0000 512.4400 498.7500 499.3300 774,800
515.1400 517.1300 502.7700 503.0100 1,222,600
519.0700 519.6300 509.4800 513.2200 790,800
515.5900 516.0700 503.6800 507.3300 1,123,000
Weekend
Weekend
No trading
552.1400 553.5000 515.3800 521.5000 2,402,900
549.0000 558.8000 544.3500 550.1500 709,400
545.9000 554.2000 544.3500 551.2100 741,200
542.3500 546.0700 536.7400 544.7300 1,073,300
Weekend
Weekend
553.0000 554.0600 546.9900 550.3300 800,700
543.8700 559.7000 541.3800 552.5200 896,900
552.9000 552.9200 541.0000 542.1400 751,200
538.3500 548.7500 537.4400 548.6700 968,200
542.0300 546.8600 531.5000 540.8100 1,033,200
Weekend
Weekend
550.0000 551.9600 540.1700 544.4000 1,069,700
532.5000 545.4300 531.3300 545.1700 1,014,300
533.5400 538.4300 525.7300 526.0600 1,220,500
535.1700 538.4300 531.8000 536.5900 1,333,400
559.9300 559.9300 538.6200 539.2200 1,321,700
Weekend
Weekend
561.3100 563.9300 551.0300 563.6800 1,975,500
552.2600 560.5500 551.3400 559.2900 1,059,200
552.3500 555.4900 548.5500 551.3400 520,700
557.7300 558.9900 550.3400 556.8000 606,900
No trading
Weekend
Weekend
552.5400 557.6900 550.4900 555.5800 652,000
10 · 8-K After-hours · 17:02 ET 8-K ↗
553.6200 555.9600 546.7600 551.5800 799,100
556.0600 556.0600 547.5700 552.1700 966,000
552.9500 557.0900 550.0800 556.3400 829,500
540.0000 552.7500 539.0000 550.0000 1,286,200
Weekend
Weekend
548.7200 552.8000 539.1400 540.6900 648,900
553.5400 555.9700 547.2900 548.6500 524,600
9 · DEFA14A After-hours · 16:31 ET DEFA14A ↗
554.3500 554.3500 544.1000 551.8000 568,100
550.0000 559.4600 546.5700 558.3000 684,900
546.0000 554.2500 544.1200 548.2100 667,400
Weekend
Weekend
554.9700 555.0300 544.2400 549.5200 742,700
559.2300 561.3200 548.3000 552.2700 841,500
558.9700 560.6200 551.2500 559.6000 772,400
570.0500 570.5000 553.4100 558.6000 923,300
567.3100 577.5000 565.1900 567.0000 708,100
Weekend
Weekend
578.7500 580.8600 568.0900 568.1400 647,100
574.1400 580.7400 573.2500 579.4800 649,600
578.0000 582.1300 567.3300 572.4100 683,900
581.9600 582.9900 570.6600 577.8200 585,900
577.0000 588.2600 569.5600 575.2800 932,200
Weekend
Weekend
582.3200 582.7800 569.0000 575.1100 1,041,200
592.5700 596.5000 583.2300 587.6600 1,386,800
611.1000 615.0000 583.5000 589.6200 1,304,900
8 · S-3ASR After-hours · 17:06 ET S-3ASR ↗ 7 · 10-Q After-hours · 16:03 ET 10-Q ↗
640.0000 653.0000 610.3900 611.1300 1,632,000
6 · 8-K Pre-market · 06:44 ET 8-K ↗
667.0000 673.3400 653.3600 656.9800 787,900
Weekend
Weekend
671.0200 677.7500 663.0200 665.2600 745,100
679.1000 680.4100 669.9000 672.7700 670,300
680.6600 682.8800 676.0000 678.5900 547,300
678.4600 681.6800 674.5500 680.1300 535,100
677.7200 683.8700 677.0100 681.3100 515,900
Weekend
Weekend
685.3400 687.0000 665.0000 673.7300 499,800
689.7000 698.5300 685.0000 690.5700 777,200
677.4700 690.7900 673.5000 687.4700 1,300,700
690.1400 696.7900 686.3900 690.5000 608,500
701.0000 703.0600 687.9500 695.7900 792,500
Weekend
Weekend
5 · DEF 14A After-hours · 16:05 ET DEF 14A ↗
No trading
700.7000 708.5500 698.1900 702.5000 613,000
689.3400 702.1800 684.7500 697.0000 551,300
679.8600 685.5200 667.2800 682.2400 551,200
689.0400 693.0100 663.9300 671.5900 927,300
Weekend
Weekend
692.2600 693.8500 677.9600 679.0000 581,800
689.6500 696.9300 687.4800 691.9900 543,100
685.4800 692.7900 681.8000 691.2100 579,500
670.0000 689.2900 668.2000 682.1600 730,600
705.8500 706.7300 678.7500 680.0000 1,225,900
Weekend
Weekend
714.7200 717.3400 701.0000 706.9500 1,718,000
719.0800 728.0000 707.0100 714.1500 849,700
729.9900 731.1800 720.0000 724.8400 545,500
734.4400 736.8700 720.8000 724.0300 764,400
733.5300 737.4000 726.1700 735.9600 604,600
Weekend
Weekend
739.9500 746.8900 728.3400 733.7100 481,900
736.4400 746.1800 726.5800 736.3000 753,200
730.7400 742.1000 728.5700 733.1800 622,200
738.0000 744.9700 730.1900 734.9800 642,000
763.0000 765.5800 744.5700 747.3400 910,400
Weekend
Weekend
742.2700 758.6800 738.0100 756.1300 772,900
749.6400 751.9400 734.3600 740.0100 918,800
757.5000 758.2800 737.7500 753.8400 1,205,100
768.8500 774.0000 751.8700 759.1100 1,304,800
745.0000 768.2200 739.8100 768.0200 1,474,400
Weekend
Weekend
720.0000 727.2900 714.8100 724.3800 896,400
703.0000 713.8100 700.1700 710.9000 588,000
727.4000 728.5000 691.0300 703.6500 1,634,900
726.5600 734.5800 710.4700 727.7300 735,000
721.2600 731.4500 719.4200 725.3900 567,200
Weekend
Weekend
735.0000 737.7500 718.0100 723.5600 744,100
727.2600 745.5500 727.2600 736.8700 1,008,400
709.9700 725.5500 702.4900 724.8300 1,194,600
702.5600 708.0000 698.7300 701.1200 614,500
No trading
Weekend
Weekend
4 · 8-K After-hours · 16:24 ET 8-K ↗
696.8000 709.0000 696.2600 702.5700 676,200
680.7500 696.7200 679.9200 695.0600 887,400
682.3400 688.1100 674.7500 678.8300 865,000
702.3200 702.3200 684.3700 685.0000 956,100
712.1500 715.6100 698.0000 698.0200 693,900
Weekend
Weekend
702.0000 711.8800 699.5300 709.1100 634,800
680.2500 704.1800 679.0000 696.5000 845,300
705.7500 709.3900 677.3900 689.7500 1,732,000
694.2000 707.6600 685.5000 704.9800 942,500
685.0000 690.4700 675.4000 685.0200 1,180,100
Weekend
Weekend
688.0000 697.6700 681.1000 692.2600 953,100
695.4500 705.4500 686.0500 695.3500 1,064,200
674.4600 690.7400 664.0000 689.1300 1,222,400
3 · 10-K After-hours · 16:02 ET 10-K ↗
649.6500 683.0100 636.0000 678.7400 1,363,400
2 · 8-K Pre-market · 06:44 ET 8-K ↗
670.0000 671.4500 659.1100 660.9700 1,024,600
Weekend
Weekend
674.2000 677.3000 668.5100 672.9500 597,600
661.1800 671.1000 660.0000 670.4400 601,900
658.9700 669.6300 654.6600 664.1600 1,011,100
665.9300 674.7500 653.0200 657.3000 1,000,500
No trading
Weekend
Weekend
657.6000 669.6800 657.2600 666.9000 968,900
640.3700 658.4100 632.9800 654.6100 965,600
625.0000 654.5200 624.8600 653.1400 1,480,900
639.1600 639.7900 619.6800 625.5000 1,153,800
623.6300 635.7600 623.3800 629.3200 1,262,600
Weekend
Weekend
590.6800 619.7900 590.6800 618.8200 1,449,800
617.8800 638.8400 585.9500 590.7900 3,608,000
616.4200 617.9900 574.5100 577.0100 1,674,500
614.5600 619.2000 606.8200 610.6100 997,900
593.9600 611.3700 591.2000 611.3200 941,700
Weekend
Weekend
569.5900 585.8500 564.5000 585.6600 477,400
No trading
575.2100 577.0000 570.0200 570.2100 419,600
578.8900 580.1200 574.3100 574.5700 526,200
577.9200 580.7600 576.8800 577.7800 250,000
Weekend
Weekend
582.7100 582.7100 575.4500 577.3700 230,400
No trading
581.2300 587.2900 581.1400 582.3500 202,600
585.2800 586.0000 576.7000 580.0600 564,700
568.9000 585.2800 568.9000 584.6600 530,100
Weekend
Weekend
558.4700 570.9600 557.9800 568.4600 1,329,800
564.0000 569.9300 558.0600 559.5200 950,200
562.7900 572.3000 557.5900 564.1900 761,800
573.5000 574.2000 565.8400 568.7200 488,200
569.1400 575.7900 568.5700 575.7900 448,800
Weekend
Weekend
563.1900 571.6000 560.5000 569.7600 784,400
557.5600 568.6600 556.9300 560.0400 618,200
549.0000 558.6100 546.5200 555.3600 680,000
554.1200 557.7400 550.2500 550.6300 410,900
549.0000 553.6200 546.5100 553.5600 706,000
Weekend
Weekend
551.5000 552.2800 544.1600 548.9700 785,500
552.8400 560.0000 551.5600 553.0000 753,000
549.5600 554.5200 546.4900 553.3200 890,000
546.6800 551.2800 545.1700 546.9700 779,300
567.7300 568.5000 543.6600 545.5100 794,700
Weekend
Weekend
567.3500 573.6800 566.6300 572.2500 421,800
No trading
569.6100 582.6000 567.0800 567.1100 445,800
565.7000 574.5000 565.7000 569.4200 919,500
562.9200 566.2700 560.0000 565.5600 731,700
Weekend
Weekend
568.2800 571.6700 563.0800 566.7000 943,900
570.8800 573.2600 563.5100 567.3500 688,100
560.3900 567.2000 557.4600 565.0000 665,400
565.0000 573.3100 564.1800 566.7600 1,047,000
559.9800 563.0800 556.2900 563.0300 912,800
Weekend
Weekend
557.7500 562.0300 553.3700 558.0000 742,500
563.2400 563.4100 556.8400 558.0000 828,400
565.1800 569.1500 558.4000 558.5700 669,600
564.4800 570.7900 559.0000 566.7400 743,300
564.8000 567.0600 557.3900 562.9800 1,075,600
Weekend
Weekend
571.9700 571.9700 562.4400 568.6100 646,000
1 · 8-K After-hours · 17:04 ET 8-K ↗
570.0000 578.0400 569.9500 571.9600 610,700
572.7700 579.5300 569.7400 570.5000 535,800
574.4900 579.5900 568.4000 577.1400 494,200
580.4400 581.1900 571.6800 575.4100 657,800
Weekend
Weekend
579.1500 586.6300 575.8200 583.4500 840,200
585.9400 591.7300 577.7400 578.6000 1,102,800
590.0000 594.2200 582.5100 584.9900 723,200
594.5000 598.9500 591.2400 595.0500 714,700
604.8700 605.6500 595.0000 595.9500 501,200
Weekend
Weekend
606.3500 608.5000 597.0800 605.5800 564,700
599.7300 609.8200 598.0100 605.7400 655,500

Announcement Events

Each title opens the filing on the SEC website. Registered users can summarise the filing and up to seven relevant exhibits linked within the same SEC submission.

15 10-Q 10-Q (opens SEC filing in a new tab) After-hours · 20:01 ET Summarise
14 8-K 8-K (opens SEC filing in a new tab) After market open · 10:00 ET Summarise
13 8-K 8-K (opens SEC filing in a new tab) After-hours · 17:06 ET Summarise
12 10-Q 10-Q (opens SEC filing in a new tab) After-hours · 16:02 ET Summarise
11 8-K 8-K (opens SEC filing in a new tab) Pre-market · 06:45 ET Summarise
10 8-K 8-K (opens SEC filing in a new tab) After-hours · 17:02 ET Summarise
9 DEFA14A DEFA14A (opens SEC filing in a new tab) After-hours · 16:31 ET Summarise
8 S-3ASR S-3ASR (opens SEC filing in a new tab) After-hours · 17:06 ET Summarise
7 10-Q 10-Q (opens SEC filing in a new tab) After-hours · 16:03 ET Summarise
6 8-K 8-K (opens SEC filing in a new tab) Pre-market · 06:44 ET Summarise
5 DEF 14A DEF 14A (opens SEC filing in a new tab) After-hours · 16:05 ET Summarise
4 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:24 ET Summarise
3 10-K 10-K (opens SEC filing in a new tab) After-hours · 16:02 ET Summarise
2 8-K 8-K (opens SEC filing in a new tab) Pre-market · 06:44 ET Summarise
1 8-K 8-K (opens SEC filing in a new tab) After-hours · 17:04 ET Summarise