MNR · Insider Trading
Mach Natural Resources LP Common Units representing Limited Partner Interests
Every open-market purchase and sale reported by MNR officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-09-17 | BAYOU CITY ENERGY MANAGEMENT LLC | 10%+ Owner | Buy | +69,028 | +$777.80K |
| 2026-09-16 | Tom L. Ward | See Remarks | Buy | +172,413 | +$2.00M |
| 2026-05-19 | VEPU Inc. | 10%+ Owner | J | −2,844,952 | −$40.00M |
| 2026-04-13 | Tom L. Ward | See Remarks | Buy | +153,256 | +$2.00M |
| 2026-04-10 | VEPU Inc. | 10%+ Owner | Sell | −11,115,358 | −$142.39M |
| 2026-04-08 | KAYNE ANDERSON CAPITAL ADVISORS LP | — | J | −6,884,642 | −$88.19M |
| 2026-03-23 | Christopher Burn | Director | Buy | +2,000 | +$27.92K |
| 2026-03-23 | William Wallace McMullen | Director | Buy | +27,855 | +$386.40K |
| 2026-02-11 | Kevin R. White | See Remarks | MIXED | +6,259 | +$78.99K |
| 2026-02-11 | Sabinal Energy Operating, LLC | 10%+ Owner | J | −455,094 | −$6.63M |
| 2026-02-11 | Michael E Reel | See Remarks | MIXED | +2,619 | +$33.05K |
| 2026-01-05 | Christopher Burn | Director | A | +13,587 | +$150.00K |
| 2025-12-10 | BCE-Mach Aggregator LLC | 10%+ Owner | Buy | +90,000 | +$1.12M |
| 2025-12-01 | Tom L. Ward | See Remarks | Buy | +40,000 | +$465.20K |
| 2025-11-25 | Tom L. Ward | See Remarks | Buy | +43,660 | +$499.91K |
| 2025-11-18 | BCE-Mach Aggregator LLC | 10%+ Owner | Buy | +13,824 | +$163.81K |
| 2025-11-18 | Tom L. Ward | See Remarks | Buy | +83,370 | +$1.00M |
| 2025-10-30 | Michael E Reel | See Remarks | F | −2,692 | −$33.54K |
| 2025-10-30 | Stephen C Perich | Director | A | +12,039 | +$150.01K |
| 2025-10-30 | Kevin R. White | See Remarks | F | −10,107 | −$125.93K |
| 2025-10-30 | Edgar R. Giesinger JR. | Director | A | +12,039 | +$150.01K |
| 2025-10-30 | Frank A Keating | Director | A | +12,039 | +$150.01K |
| 2025-10-30 | Tom L. Ward | See Remarks | F | −10,722 | −$133.60K |
| 2025-08-12 | William Wallace McMullen | Director | Buy | +9,255 | +$133.18K |
| 2025-06-17 | William Wallace McMullen | Director | Buy | +841,200 | +$12.49M |
| 2025-06-12 | William Wallace McMullen | Director | Buy | +735,387 | +$10.28M |
| 2025-02-10 | William Wallace McMullen | Director | Buy | +15,483,870 | +$240.00M |
| 2025-01-31 | Michael E Reel | See Remarks | MIXED | −3,328 | −$59.60K |
| 2025-01-31 | Kevin R. White | See Remarks | MIXED | −7,151 | −$128.06K |
| 2024-12-17 | BCE-Mach Aggregator LLC | 10%+ Owner | Buy | +1,688,187 | +$26.14M |
| 2024-12-12 | William Wallace McMullen | Director | Buy | +1,010,274 | +$15.12M |
| 2024-10-29 | Kevin R. White | See Remarks | F | −10,108 | −$165.16K |
| 2024-10-29 | Stephen C Perich | Director | A | +9,180 | +$150.00K |
| 2024-10-29 | Edgar R. Giesinger JR. | Director | A | +9,180 | +$150.00K |
| 2024-10-29 | Tom L. Ward | See Remarks | F | −10,722 | −$175.20K |
| 2024-10-29 | Michael E Reel | See Remarks | F | −1,776 | −$29.02K |
| 2024-10-29 | Frank A Keating | Director | A | +9,180 | +$150.00K |
| 2024-06-14 | Kevin R. White | See Remarks | Sell | −300,000 | −$5.55M |
| 2024-06-11 | Michael E Reel | See Remarks | Sell | −70,000 | −$1.35M |
| 2023-10-31 | Tom L. Ward | See Remarks | MIXED | −491,217 | −$10.63M |
| 2023-10-31 | William Wallace McMullen | Director | D | −9,029,997 | −$159.56M |
| 2023-10-31 | Daniel T Reineke Jr. | See Remarks | MIXED | +37,948 | −$544.36K |
| 2023-10-31 | Frank A Keating | Director | A | +7,895 | — |
| 2023-10-31 | Edgar R. Giesinger JR. | Director | A | +7,895 | — |
| 2023-10-31 | Stephen C Perich | Director | A | +7,895 | — |
| 2023-10-31 | Kevin R. White | See Remarks | MIXED | +37,948 | −$544.36K |
| 2023-10-31 | Michael E Reel | See Remarks | MIXED | +12,215 | −$107.68K |
| 2022-02-25 | Kevin S. Miller | Chief Financial Officer | D | −102,564 | — |
| 2022-02-25 | Matthew I Hirsch | Director | D | −80,169 | — |
| 2022-02-25 | Kiernan Conway | Director | D | −1,041 | — |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| BAYOU CITY ENERGY MANAGEMENT LLC | 10%+ Owner | 74,894,431 | $802.12M |
| William Wallace McMullen | Director | 74,859,917 | $801.75M |
| BCE-Mach Aggregator LLC | 10%+ Owner | 74,850,632 | $801.65M |
| VEPU Inc. | 10%+ Owner | 19,371,999 | $207.47M |
| Sabinal Energy Operating, LLC | 10%+ Owner | 18,960,034 | $203.06M |
| KAYNE ANDERSON CAPITAL ADVISORS LP | — | 15,517,713 | $166.19M |
| Tom L. Ward | See Remarks | 14,642,392 | $156.82M |
| Kevin R. White | See Remarks | 455,871 | $4.88M |
| Michael E Reel | See Remarks | 85,816 | $919.09K |
| Frank A Keating | Director | 29,111 | $311.78K |
| Edgar R. Giesinger JR. | Director | 29,111 | $311.78K |
| Stephen C Perich | Director | 29,111 | $311.78K |
| Christopher Burn | Director | 14,587 | $156.23K |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the MNR quote page; the site-wide leaderboard is on the insider transactions hub.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.