Over the last 12 months, Northrop Grumman insiders reported no purchases and 17 sales totaling $26.4M across SEC Form 4 filings. 71% of those filings were made under pre-arranged 10b5-1 trading plans.
Scroll the table sideways for price, value and marks.
| Date | Insider | Type | Shares | Avg price | Value | Δ stake | Marks |
|---|---|---|---|---|---|---|---|
| Aug 3, 2026 | WELSH MARK A IIID | ▼ Sale | 95 | $547.53 | $52K | -2.1% | plan · 10 tranches |
| May 4, 2026 | WELSH MARK A IIID | ▼ Sale | 95 | $571.68 | $54K | -2.3% | plan · 11 tranches |
| Mar 2, 2026 | Simpson Kathryn GCorp VP & General Counsel · O | ▼ Sale | 873 | $745 | $650K | -99.8% | plan |
| Feb 27, 2026 | ROEDER ROSHAN SCVP & Pres. Mission Systems · O | ▼ Sale | 1,754 | $720 | $1.3M | -42.7% | plan |
| Feb 19, 2026 | Simpson Kathryn GCorp VP & General Counsel · O | ▼ Sale | 194 | $727.62 | $141K | -18.2% | plan |
| Feb 19, 2026 | ROEDER ROSHAN SCVP & Pres. Mission Systems · O | ▼ Sale | 512 | $727.62 | $373K | -11.1% | plan |
| Feb 19, 2026 | Hardesty Michael ACorp VP, Controller & CAO · O | ▼ Sale | 147 | $732.98 | $108K | -5.5% | — |
| Feb 18, 2026 | Davies Benjamin R.CVP & Pres. Defense Systems · O | ▼ Sale | 2,189.04 | $719.61 | $1.6M | -93.5% | — |
| Feb 17, 2026 | Hardesty Michael ACorp VP, Controller & CAO · O | ▼ Sale | 715.94 | $700.63 | $502K | -21.1% | — |
| Feb 17, 2026 | Simpson Kathryn GCorp VP & General Counsel · O | ▼ Sale | 779 | $702.56 | $547K | -42.2% | plan |
| Feb 17, 2026 | ROEDER ROSHAN SCVP & Pres. Mission Systems · O | ▼ Sale | 318 | $702.56 | $223K | -6.4% | plan |
| Feb 13, 2026 | Hardesty Michael ACorp VP, Controller & CAO · O | ▼ Sale | 783.58 | $702.43 | $550K | -20.2% | 2 tranches |
| Feb 6, 2026 | Warden Kathy JChair, CEO and President · O·D | ▼ Sale | 20,000 | $708.82 | $14.2M | -10.4% | 7 tranches |
| Feb 2, 2026 | WELSH MARK A IIID | ▼ Sale | 95 | $684.52 | $65K | -2.2% | plan · 12 tranches |
| Jan 6, 2026 | Warden Kathy JChair, CEO and President · O·D | ▼ Sale | 10,000 | $604.5 | $6.0M | -5% | plan · 2 tranches |
| Dec 9, 2025 | ROEDER ROSHAN SCVP & Pres. Mission Systems · O | ▼ Sale | 84 | $555.35 | $47K | -17.2% | plan |
| Nov 24, 2025 | WELSH MARK A IIID | ▼ Sale | 97 | $564.08 | $55K | -2.2% | plan · 7 tranches |
The same Form 4 data over REST or MCP, already grouped into events with the plan flag and the dollar value read. A free key does 100 calls a day and needs no card. Prefer email? Northrop Grumman filings can reach your inbox instead.
Corporate insiders — officers, directors and 10%+ owners — must report their trades to the SEC on Form 4 within two business days. This page shows open-market activity: purchases (code P), sales (S) and dispositions back to the issuer (D). Scheduled compensation events such as stock grants and option exercises are also filed on Form 4 but carry no trading signal, so they are not shown and counts here can be lower than the raw EDGAR filing total. We group each filing's transactions into one economic event (a laddered 10b5-1 sale is one event, not 25 rows), flag pre-arranged plans and late filings, and link every event to its AI-scored article in the $NOC feed.