Transactions
41
Insider / NORTHROP GRUMMAN CORP /DE/
WELSH MARK A III
Director at NORTHROP GRUMMAN CORP /DE/
- Company
- NORTHROP GRUMMAN CORP /DE/
- Ticker
- NOC
- First filing on record
- November 25, 2025
- Latest trade on record
- August 3, 2026
- SEC filings
- EDGAR ↗
WELSH MARK A III, Director at NORTHROP GRUMMAN CORP /DE/, has disclosed 41 transactions in NOC since November 25, 2025: 0 purchases (0 open-market buys) and 40 sales, worth about $419K at the reported prices. The latest was filed August 4, 2026, 1 day after the trade.
Open-market buys
0
Sales
40
Avg. disclosure lag
1.0d
Trading in charts
Trade timeline
When does this person trade, how big, and in which direction? Every trade in the last 12 months.
Bought (above the line)Sold (below the line)Other transaction
In the last 12 months WELSH MARK A III made no purchases and 40 sales worth $226K, plus 1 other transaction. Dot size is the dollar amount.
Portfolio mix
Which stocks does this person trade most? Tile size is dollars traded, all time on record.
WELSH MARK A III has traded 1 stock on record; the largest by dollars is NOC.
Reporting lag
Does this person report on time? One bar per filing against the Form 4 deadline.
On timeLate
0 of 5 filings on record were reported after the Form 4 deadline (two business days, counted here as 4 calendar days).
What kind of transactions
Most Form 4 rows are pay arriving or tax being withheld, not a decision to buy or sell. Only code P is an open-market purchase and code S an open-market sale. What each code means: Form 4 transaction codes.
| Code | Meaning | Rows | Shares | Value |
|---|---|---|---|---|
| S | Open-market sale | 40 | 382 | $226K |
| A | Grant or award | 1 | 349 | $193K |
| Year | Rows | Bought | Sold |
|---|---|---|---|
| 2026 | 34 | 0 | 33 · $171K |
| 2025 | 7 | 0 | 7 · $55K |
Transactions
| Security | Side | Trade date | Disclosed | Lag | Shares | Price | Value | Flags | Source | Share |
|---|---|---|---|---|---|---|---|---|---|---|
| NOC | Sell S | August 3, 2026 | August 4, 2026 | 1d | 4 | $554 | $2,217 | 10b5-1 plan | Form 4 ↗ | |
| NOC | Sell S | August 3, 2026 | August 4, 2026 | 1d | 2 | $554 | $1,108 | 10b5-1 plan | Form 4 ↗ | |
| NOC | Sell S | August 3, 2026 | August 4, 2026 | 1d | 2 | $553 | $1,106 | 10b5-1 plan | Form 4 ↗ | |
| NOC | Sell S | August 3, 2026 | August 4, 2026 | 1d | 2 | $551 | $1,101 | 10b5-1 plan | Form 4 ↗ | |
| NOC | Sell S | August 3, 2026 | August 4, 2026 | 1d | 6 | $550 | $3,297 | 10b5-1 plan | Form 4 ↗ | |
| NOC | Sell S | August 3, 2026 | August 4, 2026 | 1d | 10 | $548 | $5,483 | 10b5-1 plan | Form 4 ↗ | |
| NOC | Sell S | August 3, 2026 | August 4, 2026 | 1d | 31 | $547 | $17K | 10b5-1 plan | Form 4 ↗ | |
| NOC | Sell S | August 3, 2026 | August 4, 2026 | 1d | 11 | $546 | $6,011 | 10b5-1 plan | Form 4 ↗ | |
| NOC | Sell S | August 3, 2026 | August 4, 2026 | 1d | 19 | $546 | $10K | 10b5-1 plan | Form 4 ↗ | |
| NOC | Sell S | August 3, 2026 | August 4, 2026 | 1d | 8 | $545 | $4,356 | 10b5-1 plan | Form 4 ↗ | |
| NOC | Other A | May 20, 2026 | May 21, 2026 | 1d | 349 | $552 | $193K | Form 4 ↗ | ||
| NOC | Sell S | May 4, 2026 | May 5, 2026 | 1d | 1 | $577 | $577 | 10b5-1 plan | Form 4 ↗ | |
| NOC | Sell S | May 4, 2026 | May 5, 2026 | 1d | 7 | $576 | $4,035 | 10b5-1 plan | Form 4 ↗ | |
| NOC | Sell S | May 4, 2026 | May 5, 2026 | 1d | 4 | $576 | $2,302 | 10b5-1 plan | Form 4 ↗ | |
| NOC | Sell S | May 4, 2026 | May 5, 2026 | 1d | 2 | $575 | $1,149 | 10b5-1 plan | Form 4 ↗ | |
| NOC | Sell S | May 4, 2026 | May 5, 2026 | 1d | 14 | $574 | $8,029 | 10b5-1 plan | Form 4 ↗ | |
| NOC | Sell S | May 4, 2026 | May 5, 2026 | 1d | 6 | $573 | $3,436 | 10b5-1 plan | Form 4 ↗ | |
| NOC | Sell S | May 4, 2026 | May 5, 2026 | 1d | 3 | $572 | $1,715 | 10b5-1 plan | Form 4 ↗ | |
| NOC | Sell S | May 4, 2026 | May 5, 2026 | 1d | 43 | $570 | $25K | 10b5-1 plan | Form 4 ↗ | |
| NOC | Sell S | May 4, 2026 | May 5, 2026 | 1d | 9 | $569 | $5,125 | 10b5-1 plan | Form 4 ↗ | |
| NOC | Sell S | May 4, 2026 | May 5, 2026 | 1d | 5 | $569 | $2,844 | 10b5-1 plan | Form 4 ↗ | |
| NOC | Sell S | May 4, 2026 | May 5, 2026 | 1d | 1 | $567 | $567 | 10b5-1 plan | Form 4 ↗ | |
| NOC | Sell S | February 2, 2026 | February 3, 2026 | 1d | 5 | $689 | $3,447 | 10b5-1 plan | Form 4 ↗ | |
| NOC | Sell S | February 2, 2026 | February 3, 2026 | 1d | 10 | $689 | $6,885 | 10b5-1 plan | Form 4 ↗ | |
| NOC | Sell S | February 2, 2026 | February 3, 2026 | 1d | 8 | $688 | $5,501 | 10b5-1 plan | Form 4 ↗ | |
| NOC | Sell S | February 2, 2026 | February 3, 2026 | 1d | 11 | $686 | $7,551 | 10b5-1 plan | Form 4 ↗ | |
| NOC | Sell S | February 2, 2026 | February 3, 2026 | 1d | 10 | $685 | $6,853 | 10b5-1 plan | Form 4 ↗ | |
| NOC | Sell S | February 2, 2026 | February 3, 2026 | 1d | 7 | $685 | $4,793 | 10b5-1 plan | Form 4 ↗ | |
| NOC | Sell S | February 2, 2026 | February 3, 2026 | 1d | 6 | $684 | $4,103 | 10b5-1 plan | Form 4 ↗ | |
| NOC | Sell S | February 2, 2026 | February 3, 2026 | 1d | 22 | $682 | $15K | 10b5-1 plan | Form 4 ↗ | |
| NOC | Sell S | February 2, 2026 | February 3, 2026 | 1d | 8 | $682 | $5,453 | 10b5-1 plan | Form 4 ↗ | |
| NOC | Sell S | February 2, 2026 | February 3, 2026 | 1d | 4 | $680 | $2,722 | 10b5-1 plan | Form 4 ↗ | |
| NOC | Sell S | February 2, 2026 | February 3, 2026 | 1d | 2 | $677 | $1,355 | 10b5-1 plan | Form 4 ↗ | |
| NOC | Sell S | February 2, 2026 | February 3, 2026 | 1d | 2 | $676 | $1,352 | 10b5-1 plan | Form 4 ↗ | |
| NOC | Sell S | November 24, 2025 | November 25, 2025 | 1d | 1 | $566 | $566 | 10b5-1 plan | Form 4 ↗ | |
| NOC | Sell S | November 24, 2025 | November 25, 2025 | 1d | 12 | $565 | $6,784 | 10b5-1 plan | Form 4 ↗ | |
| NOC | Sell S | November 24, 2025 | November 25, 2025 | 1d | 61 | $564 | $34K | 10b5-1 plan | Form 4 ↗ | |
| NOC | Sell S | November 24, 2025 | November 25, 2025 | 1d | 9 | $564 | $5,073 | 10b5-1 plan | Form 4 ↗ | |
| NOC | Sell S | November 24, 2025 | November 25, 2025 | 1d | 7 | $563 | $3,938 | 10b5-1 plan | Form 4 ↗ | |
| NOC | Sell S | November 24, 2025 | November 25, 2025 | 1d | 6 | $562 | $3,369 | 10b5-1 plan | Form 4 ↗ | |
| NOC | Sell S | November 24, 2025 | November 25, 2025 | 1d | 1 | $560 | $560 | 10b5-1 plan | Form 4 ↗ |
Filings
| Filed | Form | Accession | Rows | Status | Source |
|---|---|---|---|---|---|
| August 4, 2026 | Form 4 | 0001628280-26-052370 | 10 | published | EDGAR ↗ |
| May 21, 2026 | Form 4 | 0001628280-26-037209 | 1 | published | EDGAR ↗ |
| May 5, 2026 | Form 4 | 0001628280-26-030668 | 11 | published | EDGAR ↗ |
| February 3, 2026 | Form 4 | 0001628280-26-004922 | 12 | published | EDGAR ↗ |
| November 25, 2025 | Form 4 | 0001628280-25-053935 | 7 | published | EDGAR ↗ |
Other insiders at NORTHROP GRUMMAN CORP /DE/
- KRISHNA ARVIND Director 24 rows
- Brown Marianne Catherine Director 19 rows
- Warden Kathy J Chair, CEO and President 19 rows
- ROEDER ROSHAN S CVP & Pres. Mission Systems 15 rows
- Hardesty Michael A Corp VP, Controller & CAO 12 rows
- Simpson Kathryn G Corp VP & General Counsel 11 rows
- Davies Benjamin R. CVP & Pres. Defense Systems 9 rows
- Fleming Robert J. CVP and Pres. Space Systems 8 rows
- Jones Thomas H CVP & Pres Aeronautics Systems 8 rows
- Turley James S Director 4 rows
Everyone on file, with contracts and lobbying under the company's name: NORTHROP GRUMMAN CORP /DE/.
Guides for this page
- What is SEC Form 4? Who files: officers, directors and owners of more than 10% of a class of the company's shares.
- Form 4 transaction codes P = purchase. S = sale. These are the two market trades.
- Insider buying vs insider selling Selling outweighs buying by a wide margin in normal times.
- Rule 10b5-1 trading plans The plan must be set up when the insider has no important non-public information.
- What disclosure data cannot tell you Filings are late by design: up to 45 days for Congress, two business days for insiders.
Sources and method
| Source | Filings | Rows | First filed | Newest filed | Read the originals |
|---|---|---|---|---|---|
| SEC EDGAR, Form 4 | 5 | 41 | November 25, 2025 | August 4, 2026 | Form 4 list on EDGAR |
Site built October 27, 2026. Every row in the tables above links to its own filing. To quote a figure, use the Cite button at the top of the page; see how to cite and reuse.
Every row comes from the reporting owner's Form 4 as filed with the SEC (EDGAR ownership XML), read daily. "Value" is shares × the reported price; code P is an open-market purchase, S a sale, M an option exercise, A a grant. The lag is the filing date minus the trade date; Form 4 is due within two business days. Amendments (4/A) are not merged. Details on the methodology page; report an error on corrections.
Not investment advice. Figures are public disclosures shown as filed; they may lag the trade and may be amended later. No recommendation is made or implied.