NORTHROP GRUMMAN CORP /DE/ (NOC) Insider Trading & SEC Filings

Updated Jul 16, 2026 · Last SEC filing 2026-07-01

NORTHROP GRUMMAN CORP /DE/ (NOC) has filed 13 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-07-01. 2 Form 8-K material event filings were reported by NOC in the last 90 days. 1 Form 144 notices of proposed sale were filed for NOC stock. InsiderAlpha tracks every NOC SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.

About NORTHROP GRUMMAN CORP /DE/ (NOC)

SIC classificationSearch, Detection, Navigation, Guidance, Aeronautical Sys (SIC 3812)
SEC CIK0001133421

90-Day SEC Filing Activity

Form 4 filings (90d)13
Form 8-K filings (90d)2
Form 144 notices (90d)1
Latest Form 4 filing2026-07-01

Recent NOC Insider Transactions (Form 4)

DateInsiderRoleTransactionSharesPriceValueFiling
KRISHNA ARVINDDirectorA — Grant or award71$509.31$36KSEC
Brown Marianne CatherineDirectorA — Grant or award91$509.31$46KSEC
SCHOEWE THOMAS MDirectorA — Grant or award349$552.17$193KSEC
ABNEY DAVID PDirectorA — Grant or award349$552.17$193KSEC
WELSH MARK A IIIDirectorA — Grant or award349$552.17$193KSEC
ROUGHEAD GARYDirectorA — Grant or award349$552.17$193KSEC
Grady Christopher W.DirectorA — Grant or award349$552.17$193KSEC
KRISHNA ARVINDDirectorA — Grant or award349$552.17$193KSEC
Ross Kimberly A.DirectorA — Grant or award349$552.17$193KSEC
Brown Marianne CatherineDirectorA — Grant or award349$552.17$193KSEC
WINSTON MARY ADirectorA — Grant or award349$552.17$193KSEC
Turley James SDirectorA — Grant or award349$552.17$193KSEC
WELSH MARK A IIIDirectorS — Open-market sale43$570.47$25KSEC
WELSH MARK A IIIDirectorS — Open-market sale9$569.49$5KSEC
WELSH MARK A IIIDirectorS — Open-market sale3$571.74$2KSEC

All transactions sourced from SEC EDGAR Form 4 filings for NORTHROP GRUMMAN CORP /DE/ (NOC). Updated in real time as new filings are submitted to the SEC.

Most-Active NOC Insiders — Last 90 Days

InsiderForm 4 filingsTotal transaction value
WELSH MARK A III12$247K
Brown Marianne Catherine2$239K
KRISHNA ARVIND2$229K
ABNEY DAVID P1$193K
ROUGHEAD GARY1$193K

Recent NOC Form 8-K Material Events

Recent NOC Form 144 Notices of Proposed Sale

Form 144 must be filed before insiders sell restricted or control stock above SEC thresholds. A cluster of Form 144 notices often precedes a wave of insider distribution.

Recent Insider Filings

Form 4 Transaction Code Reference

SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in NOC insider filings:

POpen-market purchase by the insider
SOpen-market sale by the insider
AGrant, award, or other acquisition from the issuer
MExercise or conversion of derivative security (e.g. options)
FPayment of exercise price or tax liability via share withholding
GBona-fide gift of securities
DDisposition to the issuer (e.g. share buyback participation)
JOther acquisition or disposition
XExercise of in-the-money or at-the-money derivative security
CConversion of derivative security
VTransaction voluntarily reported earlier than required

NOC Insider Trading — FAQ

What is the latest insider trade for NOC?
NORTHROP GRUMMAN CORP /DE/ (NOC) had 13 insider filings in the last 90 days, with the most recent on 2026-07-01. InsiderAlpha tracks every Form 4, 10-K, 10-Q, and 8-K filing in real time.
How many insiders are buying NOC stock?
0 insider purchases of NOC were filed in the last 90 days.
How many insiders are selling NOC stock?
0 insider sales of NOC were filed in the last 90 days.
Where can I see NOC SEC filings (Form 4, 10-K, 10-Q, 8-K)?
InsiderAlpha aggregates every NOC SEC filing — Form 4 insider transactions, 10-K and 10-Q quarterly reports, and 8-K material event disclosures — in one timeline.

Related Companies — Recent Insider Activity

Learn More

Open the live NOC dashboard on InsiderAlpha for real-time alerts, charting, and full historical filing search.