Sheila C. Cheston is CLO & VP at NORTHROP GRUMMAN CORP /DE/ (NOC). They have made 22 open-market trades across 1 company since 2012, most recently 2026-04-30.
CIK 0001499087
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.
0 open-market purchases, against 22 sales. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| NOC | SELL | 2023-02-21 | 2023-02-23 | $474.78 | $782K | -0.1% | -3.0% | -6.6% |
| NOC | SELL | 2023-02-13 | 2023-02-15 | $467.81 | $2.4M | +1.3% | -3.2% | -4.9% |
| NOC | SELL | 2022-08-09 | 2022-08-11 | $473.99 | $3.8M | +2.6% | +2.5% | +13.3% |
| NOC | SELL | 2022-02-18 | 2022-02-22 | $397.50 | $660K | +19.4% | +15.8% | +16.4% |
| NOC | SELL | 2022-02-14 | 2022-02-16 | $397.00 | $228K | +16.1% | +9.0% | +16.9% |
| NOC | SELL | 2021-05-03 | 2021-05-05 | $352.04 | $3.5M | -0.3% | +0.9% | -2.6% |
| NOC | SELL | 2020-02-20 | 2020-02-21 | $365.28 | $602K | -3.1% | -24.6% | -8.3% |
| NOC | SELL | 2020-02-18 | 2020-02-20 | $367.26 | $6.8M | -8.7% | -25.2% | -11.2% |
| NOC | SELL | 2019-03-01 | 2019-03-05 | $288.01 | $4.9M | -4.3% | -4.3% | +8.3% |
| NOC | SELL | 2018-10-03 | 2018-10-05 | $320.00 | $3.3M | -2.9% | -12.3% | -24.7% |
| NOC | SELL | 2017-02-23 | 2017-02-24 | $242.11 | $3.3M | -0.8% | -4.0% | +4.5% |
| NOC | SELL | 2016-11-15 | 2016-11-17 | $251.29 | $1.7M | +2.1% | -4.5% | -1.2% |
| NOC | SELL | 2016-06-07 | 2016-06-09 | $215.52 | $1.3M | -1.2% | +2.0% | -2.2% |
| NOC | SELL | 2016-05-02 | 2016-05-04 | $206.49 | $5.3M | +2.4% | +2.1% | +3.8% |
| NOC | SELL | 2016-03-03 | 2016-03-07 | $190.04 | $4.5M | +2.9% | +8.9% | +16.1% |
| NOC | SELL · 10b5-1 | 2015-03-02 | 2015-03-04 | $166.11 | $2.6M | -0.6% | +0.8% | +0.8% |
| NOC | SELL · 10b5-1 | 2014-11-12 | 2014-11-14 | $136.09 | $1.1M | -0.6% | +0.8% | +0.8% |
| NOC | SELL · 10b5-1 | 2014-03-03 | 2014-03-05 | $120.00 | $316K | -0.6% | +0.8% | +0.8% |
| NOC | SELL · 10b5-1 | 2014-02-21 | 2014-02-25 | $119.76 | $988K | -0.6% | +0.8% | +0.8% |
| NOC | SELL | 2014-02-19 | 2014-11-21 | $119.11 | $269K | -0.6% | +0.8% | +0.8% |
| NOC | SELL | 2014-02-18 | 2014-02-20 | $120.11 | $1.8M | -0.6% | +0.8% | +0.8% |
| NOC | SELL | 2013-11-14 | 2013-11-18 | $110.00 | $2.8M | -0.6% | +0.8% | +0.8% |
| NOC | SELL | 2013-06-06 | 2013-06-07 | $81.60 | $3.7M | -0.6% | +0.8% | +0.8% |
| NOC | SELL | 2012-12-07 | 2012-12-11 | $67.48 | $337K | -0.6% | +0.8% | +0.8% |
| NOC | SELL | 2012-08-29 | 2012-08-31 | $67.30 | $354K | -0.6% | +0.8% | +0.8% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.