Mammoth Energy Services Ownership | Who Owns Mammoth Energy Services?
Mammoth Energy Services Ownership Summary
Mammoth Energy Services is owned by 10.41% institutional investors, 2.26% insiders, and 87.32% retail investors. Wexford capital lp is the largest institutional shareholder, holding 45.71% of TUSK shares. Vanguard Total Stock Mkt Idx Inv is the top mutual fund, with 1.59% of its assets in Mammoth Energy Services shares.
TUSK Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Mammoth Energy Services | 10.41% | 2.26% | 87.32% |
| Sector | Industrials Stocks | 49.43% | 16.01% | 34.55% |
| Industry | Conglomerate Stocks | 33.74% | 9.42% | 56.84% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Wexford capital lp | 22.07M | 45.71% | $54.07M |
| Adage capital partners gp | 4.58M | 9.48% | $11.21M |
| Blackrock funding, inc. /de | 1.45M | 3.01% | $3.56M |
| Blackrock | 1.41M | 2.94% | $4.63M |
| Vanguard group | 1.02M | 2.11% | $1.89M |
| Dimensional fund advisors lp | 686.20K | 1.42% | $1.68M |
| Geode capital management | 610.93K | 1.27% | $1.50M |
| Peapod lane capital | 599.80K | 1.24% | $1.51M |
| State street | 421.92K | 0.87% | $1.03M |
| Bridgeway capital management | 332.31K | 0.69% | $814.17K |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Wexford capital lp | 22.07M | 7.83% | $54.07M |
| Peapod lane capital | 599.80K | 1.24% | $1.51M |
| Verdad advisers, lp | 22.73K | 0.06% | $55.69K |
| Adage capital partners gp | 4.58M | 0.02% | $11.21M |
| Bridgeway capital management | 332.31K | 0.02% | $814.17K |
| Castleknight management lp | 167.43K | 0.01% | $383.42K |
| Valueworks | 10.72K | 0.01% | $26.26K |
| Nj state employees deferred compensation plan | 24.00K | 0.01% | $54.96K |
| Archer investment | 11.20K | 0.01% | $27.44K |
| Levin capital strategies | 25.00K | 0.00% | $61.25K |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Peapod lane capital | 599.80K | 1.24% | 599.80K |
| Vanguard fiduciary trust | 170.13K | 0.00% | 170.13K |
| Los angeles capital management | 163.26K | 0.00% | 163.26K |
| Boston partners | 154.39K | 0.00% | 154.39K |
| Goldman sachs group | 223.49K | 0.00% | 133.54K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Kanen wealth management | - | - | -1.32M |
| X-square capital | - | - | -215.09K |
| Russell investments group | 68.03K | 0.00% | -179.46K |
| Jpmorgan chase | 10.28K | - | -155.71K |
| Morgan stanley | 152.72K | - | -139.97K |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Peapod lane capital | 599.80K | 1.24% | 599.80K | $1.51M |
| Vanguard fiduciary trust | 170.13K | 0.00% | 170.13K | $416.82K |
| Los angeles capital management | 163.26K | 0.00% | 163.26K | $399.98K |
| Boston partners | 154.39K | 0.00% | 154.39K | $378.25K |
| Occudo quantitative strategies lp | 29.34K | 0.00% | 29.34K | $83.90K |
Sold Out
| Holder | Change |
|---|---|
| Nelson, van denburg & campbell wealth management group | -4.00 |
| Clearstead advisors | -11.00 |
| Capital performance advisors llp | -13.00 |
| Northwestern mutual wealth management | -28.00 |
| Coppell advisory solutions | -70.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Mar 31, 2026 | 50 | -29.58% | 5,035,525 | -85.35% | 10 | 0.21% | 29 | -9.38% | 12 | -50.00% |
| Dec 31, 2025 | 45 | -42.31% | 28,226,267 | -21.73% | 58 | 1.04% | 19 | -44.12% | 16 | -42.86% |
| Sep 30, 2025 | 74 | 10.45% | 36,035,593 | -1.01% | 74 | 1.31% | 30 | -14.29% | 28 | 55.56% |
| Jun 30, 2025 | 67 | - | 36,431,979 | -2.37% | 75 | 1.26% | 35 | 25.00% | 17 | -26.09% |
| Mar 31, 2025 | 67 | 1.52% | 37,314,761 | -0.46% | 77 | 1.28% | 30 | -11.76% | 22 | 46.67% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| Vanguard Total Stock Mkt Idx Inv | 767.90K | 1.59% | - |
| Royce Small-Cap Opportunity Invmt | 680.92K | 1.41% | -104.69K |
| Philotimo Focused Growth and Income | 537.30K | 1.12% | -83.62K |
| iShares Russell 2000 ETF | 501.03K | 1.04% | 4.63K |
| Vanguard US Total Market Shares ETF | 453.59K | 0.94% | - |
| Vanguard Institutional Extnd Mkt Idx Tr | 270.94K | 0.56% | - |
| EA Bridgeway Omni Small-Cap Value ETF | 241.31K | 0.50% | - |
| Fidelity Small Cap Index | 238.49K | 0.50% | -334.00 |
| FTGF RY US SmCp Opp A USD Dis(A) | 205.23K | 0.43% | -128.50K |
| iShares Russell 2000 Value ETF | 186.66K | 0.39% | - |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Jun 17, 2026 | WEXFORD CAPITAL LP | Chief Business Officer | Buy | $10.47M |
| Jun 12, 2026 | Amron Arthur H | - | Buy | $6.56K |
| Jun 11, 2026 | Amron Arthur H | - | Buy | $8.05K |
| May 26, 2026 | Amron Arthur H | - | Buy | $8.10K |
| May 28, 2026 | Amron Arthur H | - | Buy | $9.75K |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2026 Q2 | 2 | - |
| 2025 Q4 | 1 | - |
| 2025 Q2 | - | 3 |
| 2024 Q4 | 1 | 9 |
| 2024 Q2 | 2 | - |
TUSK Ownership FAQ
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