Company_Context
Healthcare
Search, Detection, Navigation, Guidance, Aeronautical Sys
Institutional analysis of internal capital flows based on SEC Form 4 filings.
Signal_Window
Headline metrics use exact calendar-day windows.
10 directional transactions in 90D
Code P purchases and code S sales are measured from 2026.05.31 — 2026.08.28.
-$52K
Open-market buys minus sales2026.08.19
Latest available filing4
Reporting entities in windowNo 90D buyer
No open-market buys in 90DWELSH MARK A III
$52.0KAnalysis of eligible SEC Form 4 activity for NOC indicates a bearish 90-day signal. The selected window contains transactions from 4 distinct reporting insiders, with aggregate nominal activity of $0.13M.
Open-market purchases minus open-market sales produce a negative net flow of $0.05M. Compensation-related awards and option exercises represent more nominal activity than directional open-market trades, so the signal should be interpreted cautiously.
The largest open-market sale in the selected window was attributed to WELSH MARK A III (Director). Form 4 activity provides useful ownership context, but it should not be treated as a standalone prediction of future price performance.
Enriched_Research_Context
These indicators use normalized SEC roles, issuer metadata, cluster detection and post-filing market prices already calculated by the data pipeline.
Healthcare
Search, Detection, Navigation, Guidance, Aeronautical Sys
0
Clustered open-market purchase records in the recent filing sample.
Recent_Filing_History
This table shows recent filing history and is not restricted by the selected 90D headline signal window.
The 90-day open-market signal is BEARISH, with net flow of $0.05M across 4 reporting insiders in the selected window.
The most recent insider transaction on record was filed on 2026.08.19. InsiderAlpha monitors EDGAR filings and updates this terminal as new Form 4 documents are published.
The selected 90-day window contains 4 distinct reporting insiders with eligible transactions for NOC. This count changes when a different signal window is selected.
WELSH MARK A III
OPEN_MARKET_SALEDirector · 2026.05.04
30D
-6.8%
90D
PENDING
180D
PENDING
Performance uses the latest matured open-market record in this sample. It describes subsequent market movement and does not imply that the filing caused the price change.