John A. Ziegler is CAO & VP at ARCH RESOURCES, INC. (ARCH). They have made 6 open-market trades across 1 company since 2017, most recently 2025-01-14.
CIK 0001546424
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 6 sales. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| ARCH | SELL | 2024-03-07 | 2024-03-08 | $184.15 | $5.5M | -10.4% | -15.9% | -7.3% |
| ARCH | SELL · 10b5-1 | 2024-02-26 | 2024-02-27 | $169.38 | $948K | +10.1% | -4.0% | +2.0% |
| ARCH | SELL · 10b5-1 | 2024-02-09 | 2024-02-13 | $170.59 | $71K | -0.9% | -5.3% | -6.3% |
| ARCH | SELL · 10b5-1 | 2023-12-01 | 2023-12-01 | $170.03 | $850K | -7.9% | -1.9% | -3.4% |
| ARCH | SELL · 10b5-1 | 2023-10-13 | 2023-10-16 | $155.21 | $29K | -1.4% | -0.3% | +8.1% |
| ARCH | SELL | 2023-02-27 | 2023-02-28 | $151.62 | $1.0M | -3.1% | -17.1% | -31.1% |
| ARCH | SELL · 10b5-1 | 2023-02-10 | 2023-02-13 | $141.08 | $38K | +7.0% | -4.1% | -11.0% |
| ARCH | SELL · 10b5-1 | 2022-10-13 | 2022-10-17 | $136.00 | $26K | +4.8% | +4.0% | -3.4% |
| ARCH | SELL | 2022-03-09 | 2022-03-09 | $145.80 | $729K | +2.2% | -0.9% | +20.4% |
| ARCH | SELL | 2022-02-25 | 2022-03-01 | $117.63 | $2.2M | +20.2% | +7.9% | +20.1% |
| ARCH | SELL | 2021-10-25 | 2021-10-27 | $96.47 | $146K | -2.7% | -13.3% | +2.9% |
| ARCH | SELL · 10b5-1 | 2021-03-01 | 2021-03-02 | $48.98 | $26K | +4.3% | -11.2% | +23.8% |
| ARCH | SELL | 2017-03-03 | 2017-03-07 | $71.42 | $37K | -2.3% | +8.9% | +2.1% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.