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NOC Northrop Grumman Corp.
Insider figures are trailing 90 days, open-market Form 4 only. Institutional figures are the latest reported quarter. These windows are not simultaneous.
-$50K net selling - trailing 90 days
0 buyers - 1 unique sellers
Historical context: No open-market activity in Sep 2026 — insiders sold in 17 of the last 24 months
8 accumulating - 6 trimming - 0 unchanged
14 comparable institutions - Q2 2026
open-market Form 4 only - grants, exercises, tax withholding excluded. ~ derived from SEC-reported shares x price.
Who is responsible
| Insider | Role | Net activity | Rows |
|---|---|---|---|
| WELSH MARK A III | — | -~$50K | 8 |
Transactions
| Date | Insider | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| August 3, 2026 | WELSH MARK A III | — | 8 reported sale rows | 91 | — | ~$50K |
| August 3, 2026 | WELSH MARK A III | — | S | -10 | 548.32 | ~$5K |
| August 3, 2026 | WELSH MARK A III | — | S | -6 | 549.5 | ~$3K |
| August 3, 2026 | WELSH MARK A III | — | S | -2 | 550.68 | ~$1K |
| August 3, 2026 | WELSH MARK A III | — | S | -4 | 554.14 | ~$2K |
| August 3, 2026 | WELSH MARK A III | — | S | -8 | 544.53 | ~$4K |
| August 3, 2026 | WELSH MARK A III | — | S | -19 | 545.59 | ~$10K |
| August 3, 2026 | WELSH MARK A III | — | S | -11 | 546.42 | ~$6K |
| August 3, 2026 | WELSH MARK A III | — | S | -31 | 547.42 | ~$17K |
| May 4, 2026 | WELSH MARK A III | — | 10 reported sale rows | 94 | — | ~$54K |
| May 4, 2026 | WELSH MARK A III | — | S | -7 | 576.38 | ~$4K |
| May 4, 2026 | WELSH MARK A III | — | S | -2 | 574.51 | ~$1K |
| May 4, 2026 | WELSH MARK A III | — | S | -4 | 575.59 | ~$2K |
| May 4, 2026 | WELSH MARK A III | — | S | -5 | 568.75 | ~$3K |
| May 4, 2026 | WELSH MARK A III | — | S | -9 | 569.49 | ~$5K |
| May 4, 2026 | WELSH MARK A III | — | S | -43 | 570.47 | ~$25K |
| May 4, 2026 | WELSH MARK A III | — | S | -3 | 571.74 | ~$2K |
| May 4, 2026 | WELSH MARK A III | — | S | -6 | 572.72 | ~$3K |
| May 4, 2026 | WELSH MARK A III | — | S | -14 | 573.51 | ~$8K |
| May 4, 2026 | WELSH MARK A III | — | S | -1 | 566.6 | ~$1K |
| March 2, 2026 | Simpson Kathryn G | Corp VP & General Counsel | S | -873 | 745 | ~$0.7M |
| February 27, 2026 | ROEDER ROSHAN S | CVP & Pres. Mission Systems | S | -1754 | 720 | ~$1.3M |
| February 19, 2026 | Hardesty Michael A | Corp VP, Controller & CAO | S | -147 | 732.98 | ~$0.1M |
| February 19, 2026 | ROEDER ROSHAN S | CVP & Pres. Mission Systems | S | -512 | 727.62 | ~$0.4M |
| February 19, 2026 | Simpson Kathryn G | Corp VP & General Counsel | S | -194 | 727.62 | ~$0.1M |
| February 18, 2026 | Davies Benjamin R. | CVP & Pres. Defense Systems | S | -2189.04 | 719.61 | ~$1.6M |
| February 17, 2026 | Simpson Kathryn G | Corp VP & General Counsel | S | -779 | 702.56 | ~$0.5M |
| February 17, 2026 | Hardesty Michael A | Corp VP, Controller & CAO | S | -715.94 | 700.63 | ~$0.5M |
| February 17, 2026 | ROEDER ROSHAN S | CVP & Pres. Mission Systems | S | -318 | 702.56 | ~$0.2M |
| February 13, 2026 | Hardesty Michael A | Corp VP, Controller & CAO | 2 reported sale rows | 783.58 | — | ~$0.6M |
| February 13, 2026 | Hardesty Michael A | Corp VP, Controller & CAO | S | -0.58 | 703.21 | ~$0K |
| February 13, 2026 | Hardesty Michael A | Corp VP, Controller & CAO | S | -783 | 702.43 | ~$0.6M |
| February 6, 2026 | Warden Kathy J | Chair, CEO and President | 7 reported sale rows | 20000 | — | ~$14.2M |
| February 6, 2026 | Warden Kathy J | Chair, CEO and President | S | -2196 | 706.65 | ~$1.6M |
| February 6, 2026 | Warden Kathy J | Chair, CEO and President | S | -1306 | 711.14 | ~$0.9M |
| February 6, 2026 | Warden Kathy J | Chair, CEO and President | S | -3552 | 710.36 | ~$2.5M |
| February 6, 2026 | Warden Kathy J | Chair, CEO and President | S | -5734 | 709.49 | ~$4.1M |
| February 6, 2026 | Warden Kathy J | Chair, CEO and President | S | -2303 | 708.63 | ~$1.6M |
| February 6, 2026 | Warden Kathy J | Chair, CEO and President | S | -4695 | 707.45 | ~$3.3M |
| February 6, 2026 | Warden Kathy J | Chair, CEO and President | S | -214 | 705.84 | ~$0.2M |
| February 2, 2026 | WELSH MARK A III | — | 9 reported sale rows | 75 | — | ~$51K |
| February 2, 2026 | WELSH MARK A III | — | S | -10 | 685.33 | ~$7K |
| February 2, 2026 | WELSH MARK A III | — | S | -2 | 676.14 | ~$1K |
| February 2, 2026 | WELSH MARK A III | — | S | -4 | 680.49 | ~$3K |
| February 2, 2026 | WELSH MARK A III | — | S | -8 | 681.68 | ~$5K |
| February 2, 2026 | WELSH MARK A III | — | S | -22 | 682.47 | ~$15K |
| February 2, 2026 | WELSH MARK A III | — | S | -6 | 683.79 | ~$4K |
| February 2, 2026 | WELSH MARK A III | — | S | -7 | 684.67 | ~$5K |
| February 2, 2026 | WELSH MARK A III | — | S | -11 | 686.43 | ~$8K |
| February 2, 2026 | WELSH MARK A III | — | S | -5 | 689.31 | ~$3K |
| January 6, 2026 | Warden Kathy J | Chair, CEO and President | S | -3000 | 615 | ~$1.8M |
| January 5, 2026 | Warden Kathy J | Chair, CEO and President | S | -7000 | 600 | ~$4.2M |
| December 9, 2025 | ROEDER ROSHAN S | CVP & Pres. Mission Systems | S | -84 | 555.35 | ~$47K |
| November 24, 2025 | WELSH MARK A III | — | 6 reported sale rows | 96 | — | ~$54K |
| November 24, 2025 | WELSH MARK A III | — | S | -7 | 562.52 | ~$4K |
| November 24, 2025 | WELSH MARK A III | — | S | -1 | 560.39 | ~$1K |
| November 24, 2025 | WELSH MARK A III | — | S | -6 | 561.51 | ~$3K |
| November 24, 2025 | WELSH MARK A III | — | S | -12 | 565.31 | ~$7K |
| November 24, 2025 | WELSH MARK A III | — | S | -61 | 564.36 | ~$34K |
| November 24, 2025 | WELSH MARK A III | — | S | -9 | 563.62 | ~$5K |
| July 17, 2025 | Jones Thomas H | CVP & Pres Aeronautics Systems | S | -729 | 525 | ~$0.4M |
| July 7, 2025 | WELSH MARK A III | — | 5 reported sale rows | 32 | — | ~$16K |
| July 7, 2025 | WELSH MARK A III | — | S | -5 | 508.17 | ~$3K |
| July 7, 2025 | WELSH MARK A III | — | S | -3 | 507.25 | ~$2K |
| July 7, 2025 | WELSH MARK A III | — | S | -1 | 503.59 | ~$1K |
| July 7, 2025 | WELSH MARK A III | — | S | -2 | 505.44 | ~$1K |
| July 7, 2025 | WELSH MARK A III | — | S | -21 | 506.36 | ~$11K |
| June 13, 2025 | Jones Thomas H | CVP & Pres Aeronautics Systems | S | -729 | 505.77 | ~$0.4M |
| June 13, 2025 | Warden Kathy J | Chair, CEO and President | S | -7500 | 505.77 | ~$3.8M |
| June 13, 2025 | Fleming Robert J. | CVP and Pres. Space Systems | S | -3500 | 505.77 | ~$1.8M |
| June 12, 2025 | Warden Kathy J | Chair, CEO and President | S | -3750 | 495 | ~$1.9M |
| June 5, 2025 | WELSH MARK A III | — | 4 reported sale rows | 26 | — | ~$13K |
| June 5, 2025 | WELSH MARK A III | — | S | -6 | 487.37 | ~$3K |
| June 5, 2025 | WELSH MARK A III | — | S | -1 | 485.67 | ~$0K |
| June 5, 2025 | WELSH MARK A III | — | S | -16 | 488.88 | ~$8K |
| June 5, 2025 | WELSH MARK A III | — | S | -3 | 486.43 | ~$1K |
| June 4, 2025 | ROEDER ROSHAN S | CVP & Pres. Mission Systems | S | -991 | 490 | ~$0.5M |
| May 30, 2025 | Jones Thomas H | CVP & Pres Aeronautics Systems | S | -729 | 480 | ~$0.3M |
| May 5, 2025 | WELSH MARK A III | — | 5 reported sale rows | 29 | — | ~$14K |
| May 5, 2025 | WELSH MARK A III | — | S | -1 | 489.64 | ~$0K |
| May 5, 2025 | WELSH MARK A III | — | S | -13 | 494.64 | ~$6K |
| May 5, 2025 | WELSH MARK A III | — | S | -10 | 493.6 | ~$5K |
| May 5, 2025 | WELSH MARK A III | — | S | -2 | 492.79 | ~$1K |
| May 5, 2025 | WELSH MARK A III | — | S | -3 | 491.47 | ~$1K |
| April 7, 2025 | WELSH MARK A III | — | 6 reported sale rows | 25 | — | ~$12K |
| April 7, 2025 | WELSH MARK A III | — | S | -6 | 483.42 | ~$3K |
| April 7, 2025 | WELSH MARK A III | — | S | -4 | 478.51 | ~$2K |
| April 7, 2025 | WELSH MARK A III | — | S | -2 | 477.49 | ~$1K |
| April 7, 2025 | WELSH MARK A III | — | S | -5 | 476.28 | ~$2K |
| April 7, 2025 | WELSH MARK A III | — | S | -1 | 474.6 | ~$0K |
| April 7, 2025 | WELSH MARK A III | — | S | -7 | 480.56 | ~$3K |
| March 6, 2025 | Warden Kathy J | Chair, CEO and President | S | -3750 | 475.65 | ~$1.8M |
| March 5, 2025 | WELSH MARK A III | — | 5 reported sale rows | 24 | — | ~$11K |
| March 5, 2025 | WELSH MARK A III | — | S | -2 | 467.74 | ~$1K |
| March 5, 2025 | WELSH MARK A III | — | S | -3 | 468.1 | ~$1K |
| March 5, 2025 | WELSH MARK A III | — | S | -1 | 469.54 | ~$0K |
| March 5, 2025 | WELSH MARK A III | — | S | -14 | 475.19 | ~$7K |
| March 5, 2025 | WELSH MARK A III | — | S | -4 | 476.38 | ~$2K |
| February 28, 2025 | Davies Benjamin R. | CVP & Pres. Defense Systems | S | -464 | 460.75 | ~$0.2M |
| February 24, 2025 | Hardesty Michael A | Corp VP, Controller & CAO | S | -1931 | 453.585 | ~$0.9M |
| February 20, 2025 | Simpson Kathryn G | Corp VP & General Counsel | S | -1035 | 429.08 | ~$0.4M |
| February 20, 2025 | Davies Benjamin R. | CVP & Pres. Defense Systems | S | -192 | 429.08 | ~$82K |
| February 18, 2025 | Davies Benjamin R. | CVP & Pres. Defense Systems | S | -293 | 445.35 | ~$0.1M |
| February 18, 2025 | Simpson Kathryn G | Corp VP & General Counsel | S | -889 | 445.35 | ~$0.4M |
| February 5, 2025 | WELSH MARK A III | — | 5 reported sale rows | 15 | — | ~$7K |
| February 5, 2025 | WELSH MARK A III | — | S | -3 | 474.83 | ~$1K |
| February 5, 2025 | WELSH MARK A III | — | S | -1 | 480.06 | ~$0K |
| February 5, 2025 | WELSH MARK A III | — | S | -4 | 482.21 | ~$2K |
| February 5, 2025 | WELSH MARK A III | — | S | -5 | 484.37 | ~$2K |
| February 5, 2025 | WELSH MARK A III | — | S | -2 | 477.5 | ~$1K |
| January 6, 2025 | WELSH MARK A III | — | 6 reported sale rows | 29 | — | ~$13K |
| January 6, 2025 | WELSH MARK A III | — | S | -2 | 460.21 | ~$1K |
| January 6, 2025 | WELSH MARK A III | — | S | -5 | 458.6 | ~$2K |
| January 6, 2025 | WELSH MARK A III | — | S | -3 | 456.65 | ~$1K |
| January 6, 2025 | WELSH MARK A III | — | S | -1 | 455.31 | ~$0K |
| January 6, 2025 | WELSH MARK A III | — | S | -14 | 454.26 | ~$6K |
| January 6, 2025 | WELSH MARK A III | — | S | -4 | 459.34 | ~$2K |
| December 5, 2024 | WELSH MARK A III | — | 6 reported sale rows | 33 | — | ~$16K |
| December 5, 2024 | WELSH MARK A III | — | S | -5 | 480.54 | ~$2K |
| December 5, 2024 | WELSH MARK A III | — | S | -18 | 481.67 | ~$9K |
| December 5, 2024 | WELSH MARK A III | — | S | -3 | 483.62 | ~$1K |
| December 5, 2024 | WELSH MARK A III | — | S | -2 | 482.7 | ~$1K |
| December 5, 2024 | WELSH MARK A III | — | S | -1 | 478.59 | ~$0K |
| December 5, 2024 | WELSH MARK A III | — | S | -4 | 479.56 | ~$2K |
| November 11, 2024 | Davies Benjamin R. | CVP & Pres. Defense Systems | S | -1156 | 532.93 | ~$0.6M |
| November 5, 2024 | WELSH MARK A III | — | 5 reported sale rows | 24 | — | ~$12K |
| November 5, 2024 | WELSH MARK A III | — | S | -1 | 505.94 | ~$1K |
| November 5, 2024 | WELSH MARK A III | — | S | -9 | 509.57 | ~$5K |
| November 5, 2024 | WELSH MARK A III | — | S | -4 | 508.7 | ~$2K |
| November 5, 2024 | WELSH MARK A III | — | S | -7 | 511.84 | ~$4K |
| November 5, 2024 | WELSH MARK A III | — | S | -3 | 507.48 | ~$2K |
| October 7, 2024 | WELSH MARK A III | — | 4 reported sale rows | 27 | — | ~$14K |
| October 7, 2024 | WELSH MARK A III | — | S | -2 | 533.56 | ~$1K |
| October 7, 2024 | WELSH MARK A III | — | S | -19 | 536.18 | ~$10K |
| October 7, 2024 | WELSH MARK A III | — | S | -5 | 534.45 | ~$3K |
| October 7, 2024 | WELSH MARK A III | — | S | -1 | 532.69 | ~$1K |