| $247M | ||
| $203M | ||
| $40M | ||
| $21M | ||
| $18M | ||
| $18M |
Buys | $36,750 | 3 | 100 |
Sells | $0 | 0 | 0 |
| Amron Arthur H | director | 3 | $36,750 | 0 | $0 | $36,750 |
Mammoth Energy Services, Inc. operates as a company providing a variety of services to the energy sector. Its operations are divided into four main business units: Infrastructure Services, Well Completion Services, Natural Sand Proppant Services, and Drilling Services. The Infrastructure Services division delivers a full spectrum of solutions for electrical power grids, including transmission, distribution, and substation facilities. This encompasses engineering, design, construction, system upgrades, routine maintenance, and repair work for high-voltage transmission lines, substations, and both overhead and subterranean lower-voltage distribution networks. Additionally, the segment is vital for emergency storm restoration efforts and provides commercial electrical services, such as wiring installation, upkeep, and repair. Well Completion Services specializes in high-pressure hydraulic fracturing (fracking) techniques designed to optimize the extraction of oil and natural gas from geological formations with low permeability. This segment also manages the transportation of sand and water essential for these well completion activities. The Natural Sand Proppant Services segment is dedicated to the supply chain of natural sand proppant, which is crucial for hydraulic fracturing. Its activities include mining, processing, and selling its own sand, in addition to purchasing and reselling processed sand acquired from the spot market. This segment further offers comprehensive logistics to ensure the efficient delivery of frac sand products. The Drilling Services segment provides contract-based drilling operations for both land-based projects and directional drilling, along with necessary rig relocation services. Beyond these core segments, Mammoth Energy offers an array of supplementary services. These include aviation support, coil tubing, pressure management, flowback operations, cementing, acidizing, equipment leasing, crude oil transportation, integrated logistics solutions, and temporary remote accommodation. The company also has capabilities in equipment manufacturing and infrastructure engineering and design. Mammoth Energy serves a diverse client base, including government-funded utilities, private and public investor-owned utilities, cooperative utilities, independent producers of oil and natural gas, and land-based drilling contractors throughout the United States and Canada. Founded in 2016, Mammoth Energy Services, Inc. maintains its corporate headquarters in Oklahoma City, Oklahoma.
Over the last 12 months, insiders at Mammoth Energy Services, Inc. have bought $36,750 and sold $0 worth of Mammoth Energy Services, Inc. stock.
On average, over the past 5 years, insiders at Mammoth Energy Services, Inc. have bought $54,582 and sold $361,662 worth of stock each year.
Highest buying activity among insiders over the last 12 months: Amron Arthur H (director) — $36,750.
The last purchase of 3,000 shares for transaction amount of $9,750 was made by Amron Arthur H (director) on 2026‑05‑28.
| 2026-05-28 | Amron Arthur H | director | 3,000 0.0063% | $3.25 | $9,750 | +9.97% | ||
| 2026-05-26 | Amron Arthur H | director | 2,500 0.0052% | $3.24 | $8,100 | +5.73% | ||
| 2025-12-11 | Amron Arthur H | director | 10,000 0.0211% | $1.89 | $18,900 | +28.49% | ||
| 2025-05-22 | Sale | SMITH ARTHUR L | director | 20,000 0.0412% | $2.51 | $50,200 | -7.51% | |
| 2025-05-20 | Sale | SMITH ARTHUR L | director | 50,000 0.1064% | $2.51 | $125,500 | -4.49% | |
| 2025-05-19 | Sale | SMITH ARTHUR L | director | 15,000 0.031% | $2.49 | $37,350 | -6.40% | |
| 2024-12-12 | Amron Arthur H | director | 1,000 0.0021% | $2.97 | $2,971 | -16.72% | ||
| 2024-11-25 | Sale | Booker Corey J. | director | 15,000 0.0314% | $3.47 | $52,050 | -26.61% | |
| 2024-11-22 | Sale | Booker Corey J. | director | 10,000 0.0205% | $3.43 | $34,300 | -28.08% | |
| 2024-11-21 | Sale | Booker Corey J. | director | 6,709 0.014% | $3.25 | $21,804 | -21.98% | |
| 2024-11-20 | Sale | Booker Corey J. | director | 5,000 0.0104% | $3.21 | $16,050 | -21.67% | |
| 2024-11-14 | Sale | Booker Corey J. | director | 3,607 0.0076% | $3.50 | $12,625 | -26.52% | |
| 2024-11-13 | Sale | Booker Corey J. | director | 7,100 0.0152% | $3.68 | $26,100 | -27.35% | |
| 2024-11-11 | Sale | Booker Corey J. | director | 3,494 0.0073% | $3.61 | $12,613 | -28.15% | |
| 2024-11-08 | Sale | Booker Corey J. | director | 24 <0.0001% | $3.76 | $90 | -29.01% | |
| 2024-11-07 | Sale | Booker Corey J. | director | 165 0.0004% | $3.90 | $644 | -32.19% | |
| 2024-05-30 | Amron Arthur H | director | 3,000 0.0062% | $3.65 | $10,944 | -13.24% | ||
| 2024-05-28 | Amron Arthur H | director | 2,000 0.0041% | $3.57 | $7,148 | -12.13% | ||
| 2024-03-12 | Amron Arthur H | director | 3,000 0.0064% | $3.72 | $11,157 | -4.25% | ||
| 2023-12-19 | Sale | Straehla Arty | Chief Executive Officer | 40,000 0.0814% | $4.35 | $174,160 | -18.71% |
| Amron Arthur H | director | 62635 0.13% | $211,079.95 | 7 | 0 | <0.0001% |
| JACOBS JOSEPH | 22423743 46.5506% | $75.57M | 3 | 0 | +85.69% | |
| WEXFORD CAPITAL LP | 22045273 45.765% | $74.29M | 2 | 0 | +1.2% | |
| MEH SUB LLC | 21978893 45.6271% | $74.07M | 0 | 2 | ||
| Mammoth Energy Holdings LLC | 20445923 42.4448% | $68.9M | 0 | 1 | ||
| GULFPORT ENERGY CORP | director | 9829548 20.4057% | $33.13M | 0 | 3 | |
| Straehla Arty | Chief Executive Officer | 1012107 2.1011% | $3.41M | 2 | 12 | +2.15% |
| Layton Mark E. | CFO and Secretary | 455360 0.9453% | $1.53M | 1 | 6 | +17.54% |
| SMITH ARTHUR L | director | 130034 0.2699% | $438,214.58 | 3 | 5 | +71.39% |
| Booker Corey J. | director | 125488 0.2605% | $422,894.56 | 0 | 9 | |
| Ross Matthew | director | 19815 0.0411% | $66,776.55 | 0 | 1 | |
| Palm James D | director | 12700 0.0264% | $42,799.00 | 2 | 0 | +98.13% |
$172,232,855 | 481 | 12.18% | $821.58M | |
$119,496,970 | 138 | 4.50% | $525.23M | |
$8,827,617 | 96 | 36.18% | $151.99M | |
$26,999,442 | 88 | 8.31% | $4.16B | |
$7,018,155 | 71 | 10.82% | $4.42B | |
$654,999,221 | 66 | 38.20% | $4.84B | |
$2,333,668 | 59 | -32.09% | $28.13M | |
$8,399,392 | 53 | 21.68% | $173.54M | |
$7,438,470 | 29 | 7.63% | $798.16M | |
Mammoth Energy Services, Inc. (TUSK) | $585,989 | 17 | 37.97% | $162.34M |
$3,478,600 | 15 | 9.47% | $81.81B | |
$1,391,846 | 13 | 13.20% | $130.46B | |
$873,306 | 8 | 20.58% | $9.94B | |
$310,113 | 4 | 12.03% | $505.74M | |
$6,316,863 | 1 | -16.92% | $562.13M | |
$966,900 | 1 | 37.56% | $4.96B |
| Increased Positions | 31 | +33.7% | 1M | +3.4% |
| Decreased Positions | 38 | -41.3% | 3M | -8.03% |
| New Positions | 9 | New | 381,123 | New |
| Sold Out Positions | 12 | Sold Out | 326,264 | Sold Out |
| Total Postitions | 85 | -7.61% | 34M | -4.63% |
| Wexford Capital Lp | $43,529.00 | 46.03% | 22.1M | 0 | 0% | 2025-09-30 |
| Adage Capital Partners Gp, L.L.C. | $9,013.00 | 9.53% | 4.58M | 0 | 0% | 2025-09-30 |
| Valueworks Llc | $4,015.00 | 4.25% | 2.04M | -350,826 | -14.69% | 2025-09-30 |
| Blackrock, Inc. | $2,861.00 | 3.03% | 1.45M | -16,636 | -1.13% | 2025-09-30 |
| Vanguard Group Inc | $1,863.00 | 1.97% | 945,630 | -11,611 | -1.21% | 2025-09-30 |
| Dimensional Fund Advisors Lp | $1,845.00 | 1.95% | 936,414 | -57,500 | -5.79% | 2025-09-30 |
| Geode Capital Management, Llc | $1,141.00 | 1.21% | 579,105 | -1,554 | -0.27% | 2025-09-30 |
| State Street Corp | $802.00 | 0.85% | 406,916 | -1,847 | -0.45% | 2025-09-30 |
| Bridgeway Capital Management, Llc | $768.00 | 0.81% | 389,964 | +39,510 | +11.27% | 2025-09-30 |
| Citadel Advisors Llc | $529.00 | 0.56% | 268,315 | +121,833 | +83.17% | 2025-09-30 |