Rosemary L. Klein is CLO & VP +1 at ARCH RESOURCES, INC. (ARCH). They have made 5 open-market trades across 3 companies since 2008, most recently 2026-03-19.
CIK 0001310202
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 $26K since 2008, against 4 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| CNR | 53,679 | $4.8M |
| ARCH | 27,792 | $3.7M |
| SEH | 9,147 | — |
| SOA | 13,452 | — |
| Total | $8.6M |
Shares reported on the most recent Form 4, priced at the 2026-03-20 close. 2 holdings could not be priced and are excluded from the total.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| CNR | SELL | 2026-03-19 | 2026-03-20 | $106.87 | $1.6M | -3.9% | -19.2% | -21.0% |
| ARCH | SELL · 10b5-1 | 2024-01-19 | 2024-01-22 | $185.00 | $316K | -3.8% | -11.9% | -12.7% |
| ARCH | SELL · 10b5-1 | 2023-11-24 | 2023-11-27 | $165.00 | $26K | +0.2% | +1.6% | +1.8% |
| ARCH | SELL · 10b5-1 | 2023-10-16 | 2023-10-16 | $154.91 | $49K | -1.4% | -0.3% | +8.1% |
| ARCH | SELL | 2023-03-03 | 2023-03-06 | $165.00 | $256K | -15.9% | -15.1% | -31.3% |
| ARCH | SELL | 2023-02-28 | 2023-02-28 | $158.04 | $783K | -3.1% | -17.1% | -31.1% |
| ARCH | SELL | 2023-02-16 | 2023-02-17 | $150.00 | $93K | +2.0% | -18.0% | -24.0% |
| ARCH | SELL · 10b5-1 | 2022-10-13 | 2022-10-17 | $136.00 | $4K | +4.8% | +4.0% | -3.4% |
| ARCH | SELL · 10b5-1 | 2022-02-25 | 2022-03-01 | $113.86 | $52K | +20.2% | +7.9% | +20.1% |
| ARCH | SELL · 10b5-1 | 2021-10-25 | 2021-10-27 | $96.47 | $7K | -2.7% | -13.3% | +2.9% |
| ARCH | SELL · 10b5-1 | 2021-03-01 | 2021-03-02 | $48.98 | $7K | +4.3% | -11.2% | +23.8% |
| SOA | BUY | 2008-08-14 | 2008-08-15 | $13.00 | $26K | N/A | N/A | N/A |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.