Northrop Grumman (NOC) — insider trading
Industrials · NYSE
Northrop Grumman (NOC) has 36 reported SEC Form 4 insider transactions in our data, including 21 open-market sales among the most recent 36 (latest 2026-09-30).
Recent Form 4 transactions
| Date | Insider | Role | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| 2026-09-30 | KRISHNA ARVIND | Director | Grant / award / vesting | 75 | $483.48 | $36.3K | Form 4 |
| 2026-09-30 | Brown Marianne Catherine | Director | Grant / award / vesting | 96 | $483.48 | $46.4K | Form 4 |
| 2026-08-19 | Warden Kathy J | Director, Officer (Chair, CEO and President) | Grant / award / vesting (derivative) | 35,910 | — | $0 | Form 4 |
| 2026-08-03 | WELSH MARK A III | Director | Open-market sale | 4 | $554.14 | $2.2K | Form 4 |
| 2026-08-03 | WELSH MARK A III | Director | Open-market sale | 2 | $553.90 | $1.1K | Form 4 |
| 2026-08-03 | WELSH MARK A III | Director | Open-market sale | 2 | $552.95 | $1.1K | Form 4 |
| 2026-08-03 | WELSH MARK A III | Director | Open-market sale | 2 | $550.68 | $1.1K | Form 4 |
| 2026-08-03 | WELSH MARK A III | Director | Open-market sale | 6 | $549.50 | $3.3K | Form 4 |
| 2026-08-03 | WELSH MARK A III | Director | Open-market sale | 10 | $548.32 | $5.5K | Form 4 |
| 2026-08-03 | WELSH MARK A III | Director | Open-market sale | 31 | $547.42 | $17.0K | Form 4 |
| 2026-08-03 | WELSH MARK A III | Director | Open-market sale | 11 | $546.42 | $6.0K | Form 4 |
| 2026-08-03 | WELSH MARK A III | Director | Open-market sale | 19 | $545.59 | $10.4K | Form 4 |
| 2026-08-03 | WELSH MARK A III | Director | Open-market sale | 8 | $544.53 | $4.4K | Form 4 |
| 2026-06-30 | KRISHNA ARVIND | Director | Grant / award / vesting | 71 | $509.31 | $36.2K | Form 4 |
| 2026-06-30 | Brown Marianne Catherine | Director | Grant / award / vesting | 91 | $509.31 | $46.3K | Form 4 |
| 2026-05-20 | ABNEY DAVID P | Director | Grant / award / vesting | 349 | $552.17 | $192.7K | Form 4 |
| 2026-05-20 | Brown Marianne Catherine | Director | Grant / award / vesting | 349 | $552.17 | $192.7K | Form 4 |
| 2026-05-20 | Grady Christopher W. | Director | Grant / award / vesting | 349 | $552.17 | $192.7K | Form 4 |
| 2026-05-20 | KRISHNA ARVIND | Director | Grant / award / vesting | 349 | $552.17 | $192.7K | Form 4 |
| 2026-05-20 | Ross Kimberly A. | Director | Grant / award / vesting | 349 | $552.17 | $192.7K | Form 4 |
| 2026-05-20 | ROUGHEAD GARY | Director | Grant / award / vesting | 349 | $552.17 | $192.7K | Form 4 |
| 2026-05-20 | SCHOEWE THOMAS M | Director | Grant / award / vesting | 349 | $552.17 | $192.7K | Form 4 |
| 2026-05-20 | Turley James S | Director | Grant / award / vesting | 349 | $552.17 | $192.7K | Form 4 |
| 2026-05-20 | WELSH MARK A III | Director | Grant / award / vesting | 349 | $552.17 | $192.7K | Form 4 |
| 2026-05-20 | WINSTON MARY A | Director | Grant / award / vesting | 349 | $552.17 | $192.7K | Form 4 |
| 2026-05-04 | WELSH MARK A III | Director | Open-market sale | 1 | $577.05 | $577 | Form 4 |
| 2026-05-04 | WELSH MARK A III | Director | Open-market sale | 7 | $576.38 | $4.0K | Form 4 |
| 2026-05-04 | WELSH MARK A III | Director | Open-market sale | 4 | $575.59 | $2.3K | Form 4 |
| 2026-05-04 | WELSH MARK A III | Director | Open-market sale | 2 | $574.51 | $1.1K | Form 4 |
| 2026-05-04 | WELSH MARK A III | Director | Open-market sale | 14 | $573.51 | $8.0K | Form 4 |
| 2026-05-04 | WELSH MARK A III | Director | Open-market sale | 6 | $572.72 | $3.4K | Form 4 |
| 2026-05-04 | WELSH MARK A III | Director | Open-market sale | 3 | $571.74 | $1.7K | Form 4 |
| 2026-05-04 | WELSH MARK A III | Director | Open-market sale | 43 | $570.47 | $24.5K | Form 4 |
| 2026-05-04 | WELSH MARK A III | Director | Open-market sale | 9 | $569.49 | $5.1K | Form 4 |
| 2026-05-04 | WELSH MARK A III | Director | Open-market sale | 5 | $568.75 | $2.8K | Form 4 |
| 2026-05-04 | WELSH MARK A III | Director | Open-market sale | 1 | $566.60 | $567 | Form 4 |
Ask the chat about NOC's insider activity →
Transaction types are the SEC Form 4 codes: open-market purchases (P) and sales (S) are the only rows that reflect open-market conviction. Awards/vesting (A), option exercises (M/X/C), shares withheld for taxes (F) and gifts (G) are compensation or mechanical, not buying or selling on the open market. Sales may be planned and non-discretionary (e.g. a Rule 10b5-1 plan); open-market buying is not a recommendation to buy. Informational only — not financial advice.
Source: SEC EDGAR Form 3/4/5. See the full company profile: Northrop Grumman (NOC).
Last updated 2026-09-30 (most recent filing date).
Informational only — NOT financial advice. Insider filings are sourced from SEC EDGAR and shown with their reported dates.