| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
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| Insider | Role | Shares | Value | Buys | Sells |
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| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
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Director, 10% Owner, See Remarks
1 company
William Wallace McMullen is Director, 10% Owner, See Remarks at MNR. William Wallace McMullen's net worth is not public. Form 4 filings only show shares in the companies where this person is an insider; those holdings are worth an estimated $775.2M at current prices.
Our model assigns William Wallace McMullen a below-average insider score of 42/100, based on 19 past trades. Over a 12-month horizon, none of those trades were profitable, with an average 12-month return of -16.8%.
Net of sales, the MNR filings show accumulation of 6,667,798 shares.
William Wallace McMullen has 11 Form 4 filings on record from October 2023 to September 2026, all as Mach Natural Resources (MNR), 2023–2026.
The 22 reported transactions were 21 open-market purchases and 1 disposition back to the company.
Counted by filing, the open-market trades come to 10 purchases worth about $102.3M and no sales.
The largest open-market purchase was 5,161,290 shares of MNR at an average $15.50 on February 7, 2025, about $80.0M. Twelve months later MNR was down 23%.
| Date | Ticker | Role | Type | Shares | Price | Value | Chg% | 3M | 12M | SEC |
|---|---|---|---|---|---|---|---|---|---|---|
| Sep 15, 2026 | MNR Mach Natural Resources LP | Director, 10% Owner, See Remarks | Buy | 34,514 | $11.27 | $388,902.00 | - | - | - | |
| Mar 23, 2026 | MNR Mach Natural Resources LP | Director, 10% Owner, See Remarks | Buy | 9,285 | $13.87 | $128,800.45 | - | -8.6% | - | |
| Dec 9, 2025 | MNR Mach Natural Resources LP | Director, 10% Owner, See Remarks | Buy | 30,000 | $12.41 | $372,225.00 | - | +8.5% | - | |
| Nov 14, 2025 | MNR Mach Natural Resources LP | Director, 10% Owner, See Remarks | Buy | 4,608 | $11.85 | $54,604.80 | - | +4.2% | - | |
| Aug 11, 2025 | MNR Mach Natural Resources LP | - | Buy | 3,085 | $14.39 | $44,393.15 | - | -20.0% | -8.6% | |
| Jun 16, 2025 | MNR Mach Natural Resources LP | Director, 10% Owner, See Remarks | Buy | 280,400 | $14.84 | $4,162,264.00 | +0.4% | -8.9% | -14.1% | |
| Jun 12, 2025 | MNR Mach Natural Resources LP | Director, 10% Owner, See Remarks | Buy | 245,129 | $13.98 | $3,426,373.55 | +0.3% | -4.6% | -8.0% | |
| Feb 7, 2025 | MNR Mach Natural Resources LP | Director, 10% Owner, See Remarks | Buy | 5,161,290 | $15.50 | $79,999,995.00 | +7.5% | -16.1% | -23.1% | |
| Dec 17, 2024 | MNR Mach Natural Resources LP | Director, 10% Owner, See Remarks | Buy | 562,729 | $15.48 | $8,712,751.64 | +0.8% | -5.1% | -26.1% | |
| Dec 12, 2024 | MNR Mach Natural Resources LP | Director, 10% Owner, See Remarks | Buy | 336,758 | $14.97 | $5,040,537.58 | +0.5% | -4.8% | -22.9% |