WELSH MARK A III 4

What Happened
Mark A. Welsh III, a director of Northrop Grumman Corporation (NOC), sold a total of 95 shares in multiple open-market transactions on May 4, 2026. The individual trades were executed at prices ranging from $566.60 to $577.05 per share; the filing reports aggregate proceeds of roughly $54,000 (weighted average price reported as $576.38). These sales were effected pursuant to a Rule 10b5-1 trading plan adopted August 23, 2025, and are reported as routine dispositions (code S).

Key Details

• Transaction date: May 4, 2026 (Form 4 filed May 5, 2026 — timely).
• Total shares sold: 95 shares across multiple trades.
• Price range: $566.60 — $577.05; weighted average sale price reported as $576.38.
• Approximate proceeds: ~$54K (filing line items sum to ~$54.3K; weighted average implies ≈$54.8K).
• Shares owned after transaction: not specified in the provided filing details.
• Notable footnotes: sales were made under a Rule 10b5-1 plan (adopted Aug 23, 2025). The filer offers to provide a breakdown of the number of shares sold at each separate price upon request (per footnotes).

Context
Sales under pre-established 10b5-1 plans are typically scheduled in advance and are considered routine corporate insider selling; they do not necessarily indicate a change in the insider’s view of the company. For retail investors, purchases by insiders are often a clearer signal of confidence than small, planned sales. This Form 4 discloses routine open-market sales by a director and does not by itself imply nonroutine insider sentiment.