Marianne Catherine Brown is Director at NORTHROP GRUMMAN CORP /DE/ (NOC). They have made 1 open-market trade across 1 company since 2023, most recently 2026-09-30.
CIK 0001804183
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
1 open-market purchase totalling $267K since 2023, never a sale. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| SCHW | BUY | 2023-03-28 | 2023-03-29 | $53.47 | $267K | -3.8% | -2.8% | +2.7% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.