William Wallace McMullen is Director & 10% Owner at MACH NATURAL RESOURCES LP (MNR). They have made 7 open-market trades across 2 companies since 2018, most recently 2026-09-15.
CIK 0001730172
7 open-market purchases totalling $28.4M since 2018, never a sale. Across 6 scored buys the stock is down 8.0% at ninety days, and 9.3 points behind the S&P over the same stretch.
7 scored purchases · one row per filing · discretionary only
| Ticker | Shares | Value |
|---|---|---|
| MNR | 74,872,307 | $828.1M |
| AMR | 4,133,911 | $688.3M |
| Total | $1.5B |
Shares reported on the most recent Form 4, priced at the 2026-09-17 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 29% | 17% | 17% |
| Avg Move | -6.1% | -2.0% | -8.0% |
| Alpha | -4.7% | -2.9% | -9.3% |
| Scored | 7 | 6 | 6 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| MNR | BUY | 2026-09-15 | 2026-09-17 | $11.27 | $389K | -6.7% | — | — |
| MNR | BUY | 2026-03-19 | 2026-03-23 | $13.87 | $129K | +0.9% | -6.7% | -9.9% |
| MNR | BUY | 2025-11-14 | 2025-11-18 | $11.85 | $109K | -1.7% | -4.6% | +10.4% |
| MNR | BUY | 2025-06-13 | 2025-06-17 | $14.84 | $4.2M | -3.9% | -2.1% | -10.9% |
| MNR | BUY | 2024-12-10 | 2024-12-12 | $14.98 | $7.2M | +3.8% | +11.9% | -5.7% |
| AMR | BUY | 2018-09-05 | 2018-09-07 | $4.73 | $1.6M | -17.4% | -5.1% | -18.6% |
| AMR | BUY | 2018-08-17 | 2018-08-21 | $4.34 | $14.7M | -17.4% | -5.1% | -13.3% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.