The Filings Report

Northrop Grumman Corp. insider trading

NOCfinancial statementsForm 4 filings on EDGAR255 transactions since Nov 1, 2024

From August 4, 2026 to November 1, 2026, 0 insiders at Northrop Grumman Corp. bought $0 of stock in the open market, and 0 sold $0. Officers and directors accounted for $0 of purchases and $0 of sales. The last reported transaction was an award by Krishna Arvind on September 30, 2026.

The answer card and chart use the same period. Change the range above the chart to update both. Form 4 filings through October 1, 2026; awards, option exercises, tax withholding and gifts are excluded from these totals.

Stock price and insider activity

Daily price candles with insider purchases and sales directly beneath them on the same timeline. Bars show individual days; totals sum all days in the selected period.

NOC daily priceSplit-adjusted prices in US dollars

Bought $0Sold $0Aug 4, 2026 – Nov 1, 2026

Oct 30, 2026O $570.64 · H $575.55 · L $556.59 · C $557.54Bought $0 (0)Sold $0 (0)
$463$497$532$567$6022026-08-04: open $547.77, high $555.00, low $541.09, close $551.552026-08-05: open $555.88, high $557.57, low $549.77, close $557.472026-08-06: open $563.81, high $568.68, low $559.00, close $567.742026-08-07: open $566.80, high $572.75, low $560.54, close $571.582026-08-10: open $575.00, high $581.59, low $573.11, close $577.892026-08-11: open $575.94, high $580.75, low $572.98, close $575.692026-08-12: open $571.07, high $580.04, low $569.51, close $577.322026-08-13: open $578.72, high $579.94, low $571.92, close $574.742026-08-14: open $579.36, high $586.36, low $574.44, close $585.872026-08-17: open $581.85, high $584.96, low $569.25, close $570.202026-08-18: open $579.07, high $594.51, low $576.20, close $589.142026-08-19: open $583.35, high $591.55, low $578.85, close $582.842026-08-20: open $580.74, high $586.00, low $563.43, close $563.862026-08-21: open $566.14, high $567.51, low $550.18, close $551.032026-08-24: open $553.00, high $553.00, low $546.50, close $549.282026-08-25: open $547.82, high $549.79, low $540.04, close $542.522026-08-26: open $543.08, high $553.61, low $543.08, close $549.952026-08-27: open $547.06, high $548.31, low $542.74, close $545.132026-08-28: open $547.37, high $547.68, low $542.79, close $545.572026-08-31: open $539.63, high $541.30, low $537.00, close $539.702026-09-01: open $543.10, high $549.77, low $530.13, close $532.912026-09-02: open $534.84, high $535.86, low $523.72, close $523.822026-09-03: open $529.20, high $532.15, low $521.66, close $528.242026-09-04: open $525.56, high $525.56, low $512.54, close $514.982026-09-08: open $516.00, high $523.67, low $515.06, close $518.582026-09-09: open $521.67, high $526.94, low $515.51, close $515.572026-09-10: open $517.05, high $523.38, low $516.00, close $518.952026-09-11: open $522.00, high $523.01, low $515.25, close $518.972026-09-14: open $524.37, high $534.30, low $521.01, close $527.392026-09-15: open $529.31, high $536.62, low $524.36, close $531.252026-09-16: open $530.00, high $534.40, low $527.23, close $530.782026-09-17: open $530.21, high $534.86, low $518.34, close $524.002026-09-18: open $523.68, high $528.27, low $519.90, close $527.392026-09-21: open $524.49, high $527.03, low $517.47, close $526.662026-09-22: open $527.15, high $529.00, low $505.75, close $509.862026-09-23: open $510.46, high $520.80, low $510.07, close $514.422026-09-24: open $514.65, high $518.81, low $508.43, close $508.982026-09-25: open $509.10, high $513.23, low $507.01, close $510.522026-09-28: open $509.05, high $513.84, low $503.94, close $505.802026-09-29: open $503.22, high $508.75, low $502.10, close $504.612026-09-30: open $483.00, high $488.46, low $479.90, close $483.482026-10-01: open $483.51, high $486.82, low $481.40, close $482.002026-10-02: open $478.94, high $481.86, low $470.06, close $478.002026-10-05: open $479.98, high $480.66, low $473.95, close $476.112026-10-06: open $476.39, high $485.70, low $474.00, close $483.112026-10-07: open $484.58, high $485.56, low $472.97, close $473.462026-10-08: open $474.82, high $486.94, low $471.36, close $484.482026-10-09: open $480.04, high $484.14, low $478.36, close $480.722026-10-12: open $482.69, high $486.63, low $480.50, close $485.002026-10-13: open $486.79, high $487.26, low $479.00, close $481.382026-10-14: open $485.60, high $499.26, low $483.24, close $495.692026-10-15: open $505.61, high $508.09, low $496.59, close $499.632026-10-16: open $505.97, high $520.57, low $503.75, close $519.862026-10-19: open $511.00, high $517.12, low $508.50, close $510.652026-10-20: open $523.64, high $550.89, low $523.64, close $534.002026-10-21: open $537.20, high $544.33, low $535.00, close $539.312026-10-22: open $544.70, high $556.56, low $542.50, close $552.352026-10-23: open $546.59, high $553.50, low $541.35, close $551.442026-10-26: open $553.86, high $566.48, low $553.86, close $565.412026-10-27: open $562.80, high $566.56, low $550.36, close $551.232026-10-28: open $547.69, high $555.00, low $545.00, close $552.772026-10-29: open $563.26, high $569.00, low $560.18, close $562.362026-10-30: open $570.64, high $575.55, low $556.59, close $557.54Insider purchases / sales · USD$0No open-market purchases or sales in this period.Aug 4Aug 26Sep 17Oct 9Oct 30

purchases above zero; sales below. Both use the transaction date and the same dollar scale. Hover, tap, or use arrow keys to inspect a date. Awards, exercises, tax withholding and gifts are excluded.

Dates with prices or insider activity are spaced evenly; empty weekends and holidays are omitted. Prices through Oct 30, 2026. Insider data through Nov 1, 2026. Prices are adjusted for splits; transaction values are reported dollars.

Every transaction

255 transactions from November 1, 2024 to November 1, 2026, newest first. Open-market purchases and sales are coloured; awards, exercises, tax withholding and gifts are grey and not counted.

TradedInsiderRoleTransactionSharesPriceValueHeld afterFiled
Sep 30, 2026Krishna ArvindDirectoraward75$483.48$36K2,837Oct 1, 2026
Sep 30, 2026Brown Marianne CatherineDirectoraward96$483.48$46K11,706Oct 1, 2026
Aug 3, 2026Welsh Mark A IIIDirectoropen-market sale10b5-18$544.53$4K4,480Aug 4, 2026
Aug 3, 2026Welsh Mark A IIIDirectoropen-market sale10b5-119$545.59$10K4,461Aug 4, 2026
Aug 3, 2026Welsh Mark A IIIDirectoropen-market sale10b5-111$546.42$6K4,450Aug 4, 2026
Aug 3, 2026Welsh Mark A IIIDirectoropen-market sale10b5-131$547.42$17K4,419Aug 4, 2026
Aug 3, 2026Welsh Mark A IIIDirectoropen-market sale10b5-110$548.32$5K4,409Aug 4, 2026
Aug 3, 2026Welsh Mark A IIIDirectoropen-market sale10b5-16$549.50$3K4,403Aug 4, 2026
Aug 3, 2026Welsh Mark A IIIDirectoropen-market sale10b5-12$550.68$1K4,401Aug 4, 2026
Aug 3, 2026Welsh Mark A IIIDirectoropen-market sale10b5-12$552.95$1K4,399Aug 4, 2026
Aug 3, 2026Welsh Mark A IIIDirectoropen-market sale10b5-12$553.90$1K4,397Aug 4, 2026
Aug 3, 2026Welsh Mark A IIIDirectoropen-market sale10b5-14$554.14$2K4,393Aug 4, 2026
Jun 30, 2026Brown Marianne CatherineDirectoraward91$509.31$46K11,558Jul 1, 2026
Jun 30, 2026Krishna ArvindDirectoraward71$509.31$36K2,749Jul 1, 2026
May 20, 2026Winston Mary ADirectoraward349$552.17$193K1,609May 21, 2026
May 20, 2026Welsh Mark A IIIDirectoraward349$552.17$193K4,470May 21, 2026
May 20, 2026Turley James SDirectoraward349$552.17$193K6,738May 21, 2026
May 20, 2026Schoewe Thomas MDirectoraward349$552.17$193K16,737May 21, 2026
May 20, 2026Roughead GaryDirectoraward349$552.17$193K12,210May 21, 2026
May 20, 2026Ross Kimberly A.Directoraward349$552.17$193K1,612May 21, 2026
May 20, 2026Krishna ArvindDirectoraward349$552.17$193K2,666May 21, 2026
May 20, 2026Grady Christopher W.Directoraward349$552.17$193K421May 21, 2026
May 20, 2026Brown Marianne CatherineDirectoraward349$552.17$193K11,415May 21, 2026
May 20, 2026Abney David PDirectoraward349$552.17$193K2,824May 21, 2026
May 4, 2026Welsh Mark A IIIDirectoropen-market sale10b5-11$566.60$5674,215May 5, 2026
May 4, 2026Welsh Mark A IIIDirectoropen-market sale10b5-15$568.75$3K4,210May 5, 2026
May 4, 2026Welsh Mark A IIIDirectoropen-market sale10b5-19$569.49$5K4,201May 5, 2026
May 4, 2026Welsh Mark A IIIDirectoropen-market sale10b5-143$570.47$25K4,158May 5, 2026
May 4, 2026Welsh Mark A IIIDirectoropen-market sale10b5-13$571.74$2K4,155May 5, 2026
May 4, 2026Welsh Mark A IIIDirectoropen-market sale10b5-16$572.72$3K4,149May 5, 2026
May 4, 2026Welsh Mark A IIIDirectoropen-market sale10b5-114$573.51$8K4,135May 5, 2026
May 4, 2026Welsh Mark A IIIDirectoropen-market sale10b5-12$574.51$1K4,133May 5, 2026
May 4, 2026Welsh Mark A IIIDirectoropen-market sale10b5-14$575.59$2K4,129May 5, 2026
May 4, 2026Welsh Mark A IIIDirectoropen-market sale10b5-17$576.38$4K4,122May 5, 2026
May 4, 2026Welsh Mark A IIIDirectoropen-market sale10b5-11$577.05$5774,121May 5, 2026
Mar 31, 2026Brown Marianne CatherineDirectoraward68$682.24$46K11,066Apr 2, 2026
Mar 31, 2026Krishna ArvindDirectoraward53$682.24$36K2,317Apr 2, 2026
Mar 2, 2026Simpson Kathryn GCorp VP & General Counselopen-market sale10b5-1873$745.00$650K1Mar 3, 2026
Feb 27, 2026Roeder Roshan SCVP & Pres. Mission Systemsopen-market sale10b5-11,754$720.00$1M2,353Mar 2, 2026
Feb 19, 2026Simpson Kathryn GCorp VP & General Counselopen-market sale10b5-1194$727.62$141K874Feb 20, 2026
Feb 19, 2026Roeder Roshan SCVP & Pres. Mission Systemsopen-market sale10b5-1512$727.62$373K4,107Feb 20, 2026
Feb 19, 2026Hardesty Michael ACorp VP, Controller & CAOopen-market sale147$732.98$108K2,525Feb 20, 2026
Feb 18, 2026Davies Benjamin R.CVP & Pres. Defense Systemsopen-market sale2,189$719.61$2M151Feb 19, 2026
Feb 17, 2026Davies Benjamin R.CVP & Pres. Defense Systemsoption exercise274$0.00—2,463Feb 19, 2026
Feb 17, 2026Davies Benjamin R.CVP & Pres. Defense Systemstax withholding123$701.12$86K2,340Feb 19, 2026
Feb 17, 2026Fleming Robert J.CVP and Pres. Space Systemsoption exercise264$0.00—2,704Feb 19, 2026
Feb 17, 2026Fleming Robert J.CVP and Pres. Space Systemstax withholding85$701.12$60K2,619Feb 19, 2026
Feb 17, 2026Hardesty Michael ACorp VP, Controller & CAOopen-market sale716$700.63$502K2,672Feb 19, 2026
Feb 17, 2026Hardesty Michael ACorp VP, Controller & CAOtax withholding243$701.12$170K3,388Feb 19, 2026
Feb 17, 2026Hardesty Michael ACorp VP, Controller & CAOoption exercise538$0.00—3,631Feb 19, 2026

Who the insiders are

Everyone who reported a transaction since November 1, 2024, by open-market value over twelve months. Shares held are after the insider’s latest directly held transaction.

InsiderRoleLast transactionKindShares heldBought, 12 monthsSold, 12 monthsSales under a plan
Warden Kathy JChair, CEO and President, DirectorFeb 17, 2026option exercise201,538—$20M (9)2 of 9
Roeder Roshan SCVP & Pres. Mission SystemsFeb 27, 2026open-market sale2,353—$2M (4)4 of 4
Davies Benjamin R.CVP & Pres. Defense SystemsFeb 18, 2026open-market sale151—$2M (1)0 of 1
Simpson Kathryn GCorp VP & General CounselMar 2, 2026open-market sale1—$1M (3)3 of 3
Hardesty Michael ACorp VP, Controller & CAOFeb 19, 2026open-market sale2,525—$1M (4)0 of 4
Welsh Mark A IIIDirectorAug 3, 2026open-market sale4,480—$226K (40)40 of 40
Jones Thomas HCVP & Pres Aeronautics SystemsFeb 17, 2026tax withholding11,205———
Krishna ArvindDirectorSep 30, 2026award2,837———
Brown Marianne CatherineDirectorSep 30, 2026award11,706———
Fleming Robert J.CVP and Pres. Space SystemsFeb 17, 2026option exercise2,704———
Crews Kenneth B.CVP & Chief Financial OfficerFeb 18, 2025option exercise2,729———
Winston Mary ADirectorMay 20, 2026award1,609———
Turley James SDirectorMay 20, 2026award6,738———
Schoewe Thomas MDirectorMay 20, 2026award16,737———
Roughead GaryDirectorMay 20, 2026award12,210———
Ross Kimberly A.DirectorMay 20, 2026award1,612———
Grady Christopher W.DirectorMay 20, 2026award421———
Abney David PDirectorMay 20, 2026award2,824———
Robinson GrahamDirectorMar 31, 2025award1,984———
Kleiner MadeleineDirectorMay 21, 2025award21,002———
Fudge Ann MDirectorMay 21, 2025award5,792———

Questions

Are Northrop Grumman Corp. insiders buying or selling?

Over the twelve months to November 1, 2026, 6 insiders at Northrop Grumman Corp. sold $26M of stock in the open market, all by officers and directors, and no insider bought. Net, insiders sold $26M. Only open-market purchases and sales are counted.

Who sold the most Northrop Grumman Corp. stock in the last year?

Warden Kathy J (Chair, CEO and President, Director) sold $20M in 9 open-market sales over the twelve months to November 1, 2026.

Do Northrop Grumman Corp. executives sell under 10b5-1 plans?

49 of the 61 open-market sales in the last twelve months (80%) were reported as made under a Rule 10b5-1 trading plan, set up in advance. A sale under a plan is still counted as a sale.

What counts as insider buying here?

Only open-market purchases (Form 4 code P) and sales (code S) by officers, directors and 10% owners. Stock awards, option exercises, shares withheld for tax and gifts are listed in the table but never counted as buying or selling.

More on Northrop Grumman Corp.

From Form 4, 4/A and 5 filings with the SEC. A record of insider transactions, not a recommendation.