Fund shareholders of Mammoth Energy Services Inc
ISIN US56155L1089 · United States · LEI 549300ODHHN3MGXCQ803
- Fund shareholders
- 94
- Of which ETFs
- 12 82 other funds
- Value held
- 9M $
- Share of capital
- 7.3 % of 48.1M shares on Aug 4, 2026
| Fund | Shares | Value | Weight in fund | Share of capital | |
|---|---|---|---|---|---|
| VANGUARD TOTAL STOCK MARKET INDEX FUND VANGUARD INDEX FUNDS | 533,692 | 1.3M $ | 0.00 % | 1.11 % | as of Mar 31, 2026 ↗ |
| iShares Russell 2000 ETF iShares Trust | 516,512 | 1.3M $ | 0.00 % | 1.07 % | as of Mar 31, 2026 ↗ |
| VANGUARD EXTENDED MARKET INDEX FUND VANGUARD INDEX FUNDS | 271,956 | 666.3K $ | 0.00 % | 0.57 % | as of Mar 31, 2026 ↗ |
| Fidelity Small Cap Index Fund Fidelity Salem Street Trust | 238,494 | 682.1K $ | 0.00 % | 0.50 % | as of Apr 30, 2026 ↗ |
| iShares Russell 2000 Value ETF iShares Trust | 187,229 | 458.7K $ | 0.00 % | 0.39 % | as of Mar 31, 2026 ↗ |
| Dimensional U.S. Small Cap ETF Dimensional ETF Trust | 160,900 | 460.2K $ | 0.00 % | 0.33 % | as of Apr 30, 2026 ↗ |
| U.S. SMALL CAP PORTFOLIO DFA INVESTMENT DIMENSIONS GROUP INC | 156,438 | 447.4K $ | 0.00 % | 0.33 % | as of Apr 30, 2026 ↗ |
| Fidelity Extended Market Index Fund Fidelity Concord Street Trust | 125,316 | 289.5K $ | 0.00 % | 0.26 % | as of Feb 28, 2026 ↗ |
| VANGUARD RUSSELL 2000 INDEX FUND VANGUARD SCOTTSDALE FUNDS | 118,760 | 274.3K $ | 0.00 % | 0.25 % | as of Feb 28, 2026 ↗ |
| U.S. Small Cap Equity Fund RUSSELL INVESTMENT CO | 108,413 | 310.1K $ | 0.03 % | 0.23 % | as of Apr 30, 2026 ↗ |
| U.S. MICRO CAP PORTFOLIO DFA INVESTMENT DIMENSIONS GROUP INC | 72,149 | 206.3K $ | 0.00 % | 0.15 % | as of Apr 30, 2026 ↗ |
| Dunham Small Cap Value Fund Dunham Funds | 72,015 | 206K $ | 0.22 % | 0.15 % | as of Apr 30, 2026 ↗ |
| Ultra-Small Company Market Fund Bridgeway Funds, Inc. | 60,000 | 147K $ | 0.12 % | 0.12 % | as of Mar 31, 2026 ↗ |
| iShares Micro-Cap ETF iShares Trust | 58,829 | 144.1K $ | 0.01 % | 0.12 % | as of Mar 31, 2026 ↗ |
| Tax-Managed U.S. Mid & Small Cap Fund RUSSELL INVESTMENT CO | 54,843 | 156.9K $ | 0.01 % | 0.11 % | as of Apr 30, 2026 ↗ |
| SIMT Small Cap Fund SEI INSTITUTIONAL MANAGED TRUST | 50,196 | 123K $ | 0.03 % | 0.10 % | as of Mar 31, 2026 ↗ |
| Schwab Small-Cap Index Fund SCHWAB CAPITAL TRUST | 48,122 | 137.6K $ | 0.00 % | 0.10 % | as of Apr 30, 2026 ↗ |
| Master Small Cap Index Series Quantitative Master Series LLC | 45,251 | 110.9K $ | 0.00 % | 0.09 % | as of Mar 31, 2026 ↗ |
| Fidelity Total Market Index Fund Fidelity Concord Street Trust | 41,270 | 95.3K $ | 0.00 % | 0.09 % | as of Feb 28, 2026 ↗ |
| U.S. SMALL CAP VALUE PORTFOLIO DFA INVESTMENT DIMENSIONS GROUP INC | 37,940 | 108.5K $ | 0.00 % | 0.08 % | as of Apr 30, 2026 ↗ |
| Fidelity Nasdaq Composite Index Fund Fidelity Concord Street Trust | 36,411 | 84.1K $ | 0.00 % | 0.08 % | as of Feb 28, 2026 ↗ |
| Fidelity Series Total Market Index Fund Fidelity Concord Street Trust | 34,070 | 78.7K $ | 0.00 % | 0.07 % | as of Feb 28, 2026 ↗ |
| Nuveen Small Cap Blend Index Fund TIAA-CREF Funds | 31,375 | 89.7K $ | 0.00 % | 0.07 % | as of Apr 30, 2026 ↗ |
| Fidelity Small Cap Value Index Fund Fidelity Salem Street Trust | 29,946 | 73.4K $ | 0.00 % | 0.06 % | as of Mar 31, 2026 ↗ |
| Dimensional U.S. Core Equity 2 ETF Dimensional ETF Trust | 25,346 | 72.5K $ | 0.00 % | 0.05 % | as of Apr 30, 2026 ↗ |
| EQ/2000 Managed Volatility Portfolio EQ Advisors Trust | 24,737 | 60.6K $ | 0.00 % | 0.05 % | as of Mar 31, 2026 ↗ |
| Omni Small-Cap Value Fund Bridgeway Funds, Inc. | 21,500 | 52.7K $ | 0.00 % | 0.04 % | as of Mar 31, 2026 ↗ |
| Small Cap Value Fund VALIC Co I | 19,114 | 44.2K $ | 0.02 % | 0.04 % | as of Feb 28, 2026 ↗ |
| SIIT SMALL CAP II FUND SEI INSTITUTIONAL INVESTMENTS TRUST | 18,782 | 43.4K $ | 0.02 % | 0.04 % | as of Feb 28, 2026 ↗ |
| U.S. CORE EQUITY 1 PORTFOLIO DFA INVESTMENT DIMENSIONS GROUP INC | 18,264 | 52.2K $ | 0.00 % | 0.04 % | as of Apr 30, 2026 ↗ |
| SIIT SMALL CAP FUND SEI INSTITUTIONAL INVESTMENTS TRUST | 17,837 | 41.2K $ | 0.02 % | 0.04 % | as of Feb 28, 2026 ↗ |
| VANGUARD RUSSELL 2000 VALUE INDEX FUND VANGUARD SCOTTSDALE FUNDS | 16,968 | 39.2K $ | 0.00 % | 0.04 % | as of Feb 28, 2026 ↗ |
| LVIP SSGA Small-Cap Index Fund LINCOLN VARIABLE INSURANCE PRODUCTS TRUST | 16,700 | 40.9K $ | 0.00 % | 0.03 % | as of Mar 31, 2026 ↗ |
| U.S. CORE EQUITY 2 PORTFOLIO DFA INVESTMENT DIMENSIONS GROUP INC | 14,869 | 42.5K $ | 0.00 % | 0.03 % | as of Apr 30, 2026 ↗ |
| U.S. VECTOR EQUITY PORTFOLIO DFA INVESTMENT DIMENSIONS GROUP INC | 13,792 | 39.4K $ | 0.00 % | 0.03 % | as of Apr 30, 2026 ↗ |
| VANGUARD BALANCED INDEX FUND VANGUARD VALLEY FORGE FUNDS | 13,472 | 33K $ | 0.00 % | 0.03 % | as of Mar 31, 2026 ↗ |
| Bridge Builder Small/Mid Cap Value Fund Bridge Builder Trust | 12,463 | 30.5K $ | 0.00 % | 0.03 % | as of Mar 31, 2026 ↗ |
| Global X Russell 2000 ETF GLOBAL X FUNDS | 11,706 | 33.5K $ | 0.00 % | 0.02 % | as of Apr 30, 2026 ↗ |
| NVIT GS Small Cap Equity Insights Fund Nationwide Variable Insurance Trust | 11,624 | 28.5K $ | 0.01 % | 0.02 % | as of Mar 31, 2026 ↗ |
| JNL/DFA U.S. Small Cap Fund JNL Series Trust | 11,105 | 27.2K $ | 0.00 % | 0.02 % | as of Mar 31, 2026 ↗ |
| Schwab Total Stock Market Index Fund SCHWAB CAPITAL TRUST | 10,739 | 30.7K $ | 0.00 % | 0.02 % | as of Apr 30, 2026 ↗ |
| Small Cap Index Fund VALIC Co I | 9,864 | 22.8K $ | 0.00 % | 0.02 % | as of Feb 28, 2026 ↗ |
| Small Cap Index Fund Northern Funds | 9,221 | 22.6K $ | 0.00 % | 0.02 % | as of Mar 31, 2026 ↗ |
| Small Company Value Portfolio Wilshire Mutual Funds Inc | 8,740 | 21.4K $ | 0.09 % | 0.02 % | as of Mar 31, 2026 ↗ |
| STATE STREET SMALL/MID CAP EQUITY INDEX PORTFOLIO STATE STREET INSTITUTIONAL INVESTMENT TRUST | 8,600 | 21.1K $ | 0.00 % | 0.02 % | as of Mar 31, 2026 ↗ |
| Goldman Sachs Variable Insurance Trust Small Cap Equity Insights Fund Goldman Sachs Variable Insurance Trust | 7,349 | 18K $ | 0.01 % | 0.02 % | as of Mar 31, 2026 ↗ |
| NVIT Small Cap Index Fund Nationwide Variable Insurance Trust | 6,516 | 16K $ | 0.00 % | 0.01 % | as of Mar 31, 2026 ↗ |
| EQ/Small Company Index Portfolio EQ Advisors Trust | 6,190 | 15.2K $ | 0.00 % | 0.01 % | as of Mar 31, 2026 ↗ |
| ATM Small Cap Managed Volatility Portfolio EQ Advisors Trust | 5,817 | 14.3K $ | 0.00 % | 0.01 % | as of Mar 31, 2026 ↗ |
| Small-Cap Index Portfolio PACIFIC SELECT FUND | 5,587 | 13.7K $ | 0.00 % | 0.01 % | as of Mar 31, 2026 ↗ |
| AST Small-Cap Equity Portfolio Advanced Series Trust | 5,570 | 13.6K $ | 0.00 % | 0.01 % | as of Mar 31, 2026 ↗ |
| 1290 VT Micro Cap Portfolio EQ Advisors Trust | 5,076 | 12.4K $ | 0.01 % | 0.01 % | as of Mar 31, 2026 ↗ |
| EQ/AB Small Cap Growth Portfolio EQ Advisors Trust | 4,760 | 11.7K $ | 0.00 % | 0.01 % | as of Mar 31, 2026 ↗ |
| Dimensional US Sustainability Core 1 ETF Dimensional ETF Trust | 4,562 | 13K $ | 0.00 % | 0.01 % | as of Apr 30, 2026 ↗ |
| Avantis U.S. Small Cap Equity ETF American Century ETF Trust | 3,873 | 8.9K $ | 0.00 % | 0.01 % | as of Feb 28, 2026 ↗ |
| DWS Small Cap Index VIP DEUTSCHE DWS INVESTMENTS VIT FUNDS | 3,702 | 9.1K $ | 0.00 % | 0.01 % | as of Mar 31, 2026 ↗ |
| 1290 VT Small Cap Value Portfolio EQ Advisors Trust | 3,693 | 9K $ | 0.00 % | 0.01 % | as of Mar 31, 2026 ↗ |
| LVIP Dimensional U.S. Core Equity 1 Fund LINCOLN VARIABLE INSURANCE PRODUCTS TRUST | 3,494 | 8.6K $ | 0.00 % | 0.01 % | as of Mar 31, 2026 ↗ |
| Dimensional US Core Equity 1 ETF Dimensional ETF Trust | 3,400 | 9.7K $ | 0.00 % | 0.01 % | as of Apr 30, 2026 ↗ |
| iShares Russell Small/Mid-Cap Index Fund BlackRock Funds | 3,130 | 9K $ | 0.00 % | 0.01 % | as of Apr 30, 2026 ↗ |
| SA Small Cap Index Portfolio SUNAMERICA SERIES TRUST | 2,749 | 7.9K $ | 0.00 % | 0.01 % | as of Apr 30, 2026 ↗ |
| BlackRock Small Cap Index V.I. Fund BlackRock Variable Series Funds, Inc. | 2,727 | 6.7K $ | 0.00 % | 0.01 % | as of Mar 31, 2026 ↗ |
| LVIP Dimensional U.S. Core Equity 2 Fund LINCOLN VARIABLE INSURANCE PRODUCTS TRUST | 2,622 | 6.4K $ | 0.00 % | 0.01 % | as of Mar 31, 2026 ↗ |
| VANGUARD RUSSELL 3000 INDEX FUND VANGUARD SCOTTSDALE FUNDS | 2,358 | 5.4K $ | 0.00 % | 0.00 % | as of Feb 28, 2026 ↗ |
| T. Rowe Price Small-Cap Index Fund T. ROWE PRICE INDEX TRUST, INC. | 2,352 | 5.8K $ | 0.00 % | 0.00 % | as of Mar 31, 2026 ↗ |
| JNL/DFA U.S. Core Equity Fund JNL Series Trust | 2,288 | 5.6K $ | 0.00 % | 0.00 % | as of Mar 31, 2026 ↗ |
| Nationwide Small Cap Index Fund Nationwide Mutual Funds | 2,127 | 6.1K $ | 0.00 % | 0.00 % | as of Apr 30, 2026 ↗ |
| Venerable Small Cap Index Fund Venerable Variable Insurance Trust | 2,009 | 4.9K $ | 0.00 % | 0.00 % | as of Mar 31, 2026 ↗ |
| CVT Russell 2000 Small Cap Index Portfolio Calvert Variable Trust, Inc. | 1,924 | 4.7K $ | 0.00 % | 0.00 % | as of Mar 31, 2026 ↗ |
| Small Cap Core Fund Northern Funds | 1,811 | 4.4K $ | 0.00 % | 0.00 % | as of Mar 31, 2026 ↗ |
| ProShares Ultra Russell2000 ProShares Trust | 1,500 | 3.5K $ | 0.00 % | 0.00 % | as of Feb 28, 2026 ↗ |
| ProShares UltraPro Russell2000 ProShares Trust | 1,496 | 3.5K $ | 0.00 % | 0.00 % | as of Feb 28, 2026 ↗ |
| AZL DFA U.S. Core Equity Fund Allianz Variable Insurance Products Trust | 1,436 | 3.5K $ | 0.00 % | 0.00 % | as of Mar 31, 2026 ↗ |
| PD Small-Cap Value Index Portfolio PACIFIC SELECT FUND | 1,384 | 3.4K $ | 0.00 % | 0.00 % | as of Mar 31, 2026 ↗ |
| Vericimetry U.S. Small Cap Value Fund VERICIMETRY FUNDS | 1,373 | 3.4K $ | 0.00 % | 0.00 % | as of Mar 31, 2026 ↗ |
| Destinations Small-Mid Cap Equity Fund Brinker Capital Destinations Trust | 1,322 | 3.1K $ | 0.00 % | 0.00 % | as of Feb 28, 2026 ↗ |
| ProShares Russell 2000 High Income ETF ProShares Trust | 1,051 | 2.4K $ | 0.00 % | 0.00 % | as of Feb 28, 2026 ↗ |
| SmallCap Value Fund II Principal Funds, Inc | 1,039 | 3K $ | 0.00 % | 0.00 % | as of Apr 30, 2026 ↗ |
| EQ/Franklin Small Cap Value Managed Volatility Portfolio EQ Advisors Trust | 1,025 | 2.5K $ | 0.00 % | 0.00 % | as of Mar 31, 2026 ↗ |
| Penn Series Small Cap Index Fund Penn Series Funds Inc | 1,000 | 2.5K $ | 0.00 % | 0.00 % | as of Mar 31, 2026 ↗ |
| Small-Cap Equity Portfolio PACIFIC SELECT FUND | 988 | 2.4K $ | 0.00 % | 0.00 % | as of Mar 31, 2026 ↗ |
| Nuveen Life Stock Index Fund TIAA-CREF Life Funds | 767 | 1.9K $ | 0.00 % | 0.00 % | as of Mar 31, 2026 ↗ |
| State Street Total Return V.I.S. Fund STATE STREET VARIABLE INSURANCE SERIES FUNDS INC | 547 | 1.3K $ | 0.00 % | 0.00 % | as of Mar 31, 2026 ↗ |
| ULTRA SMALL CAP PROFUND ProFunds | 276 | 789.4 $ | 0.00 % | 0.00 % | as of Apr 30, 2026 ↗ |
| Knights of Columbus U.S. ALL CAP INDEX FUND ADVISORS' INNER CIRCLE III | 136 | 389 $ | 0.00 % | 0.00 % | as of Apr 30, 2026 ↗ |
| Russell 2000 2x Strategy Fund Rydex Dynamic Funds | 124 | 303.8 $ | 0.00 % | 0.00 % | as of Mar 31, 2026 ↗ |
| PROFUND VP ULTRA SMALL CAP ProFunds | 81 | 198.5 $ | 0.00 % | 0.00 % | as of Mar 31, 2026 ↗ |
| PROFUND VP SMALL CAP ProFunds | 61 | 149.5 $ | 0.00 % | 0.00 % | as of Mar 31, 2026 ↗ |
| Russell 2000 Fund Rydex Series Funds | 57 | 139.7 $ | 0.00 % | 0.00 % | as of Mar 31, 2026 ↗ |
| SMALL-CAP PROFUND ProFunds | 44 | 125.8 $ | 0.00 % | 0.00 % | as of Apr 30, 2026 ↗ |
| Russell 2000 1.5x Strategy Fund Rydex Series Funds | 34 | 83.3 $ | 0.00 % | 0.00 % | as of Mar 31, 2026 ↗ |
| ProShares Hedge Replication ETF ProShares Trust | 25 | 57.8 $ | 0.00 % | 0.00 % | as of Feb 28, 2026 ↗ |
| Russell 2000(R) 1.5x Strategy Fund Rydex Variable Trust | 6 | 14.7 $ | 0.00 % | 0.00 % | as of Mar 31, 2026 ↗ |
| ProShares Russell 2000 Dynamic Buffer ETF ProShares Trust | 6 | 13.9 $ | 0.00 % | 0.00 % | as of Feb 28, 2026 ↗ |
The funds most exposed to it
The weight is the share of a fund's net assets. The holders table ranks funds by number of shares. This one ranks them by the weight of the company in each fund.
| Fund | Weight in fund | |
|---|---|---|
| Dunham Small Cap Value Fund Dunham Funds | 0.22 % | as of Apr 30, 2026 ↗ |
| Ultra-Small Company Market Fund Bridgeway Funds, Inc. | 0.12 % | as of Mar 31, 2026 ↗ |
| Small Company Value Portfolio Wilshire Mutual Funds Inc | 0.09 % | as of Mar 31, 2026 ↗ |
| U.S. Small Cap Equity Fund RUSSELL INVESTMENT CO | 0.03 % | as of Apr 30, 2026 ↗ |
| SIMT Small Cap Fund SEI INSTITUTIONAL MANAGED TRUST | 0.03 % | as of Mar 31, 2026 ↗ |
| SIIT SMALL CAP FUND SEI INSTITUTIONAL INVESTMENTS TRUST | 0.02 % | as of Feb 28, 2026 ↗ |
| Small Cap Value Fund VALIC Co I | 0.02 % | as of Feb 28, 2026 ↗ |
| SIIT SMALL CAP II FUND SEI INSTITUTIONAL INVESTMENTS TRUST | 0.02 % | as of Feb 28, 2026 ↗ |
| NVIT GS Small Cap Equity Insights Fund Nationwide Variable Insurance Trust | 0.01 % | as of Mar 31, 2026 ↗ |
| iShares Micro-Cap ETF iShares Trust | 0.01 % | as of Mar 31, 2026 ↗ |
Quarter after quarter
Each row is one quarter of SEC filings, newest first. The change compares each quarter with the one before.
| Quarter | Shareholders | Change | Shares | Change |
|---|---|---|---|---|
| 2026Q2 | 94 | +4 | 3,517,034 | -2.2 % |
| 2026Q1 | 90 | -3 | 3,596,562 | +1.8 % |
| 2025Q4 | 93 | +2 | 3,531,594 | -5.0 % |
| 2025Q3 | 91 | +1 | 3,716,864 | -13.0 % |
| 2025Q2 | 90 | -4 | 4,272,532 | -6.4 % |
| 2025Q1 | 94 | -1 | 4,562,962 | +1.6 % |
| 2024Q4 | 95 | -1 | 4,489,098 | -5.4 % |
| 2024Q3 | 96 | -1 | 4,745,469 | -2.2 % |
| 2024Q2 | 97 | +2 | 4,850,343 | +1.4 % |
| 2024Q1 | 95 | -6 | 4,782,519 | +2.5 % |
| 2023Q4 | 101 | 4,664,832 |
Institutional managers
84 managers declare this company to the SEC (Form 13F). The table shows the 25 largest.
| Manager | Shares | Value | |
|---|---|---|---|
| WEXFORD CAPITAL LP | 22,068,212 | 54.1M $ | as of Mar 31, 2026 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | 4,575,000 | 11.2M $ | as of Mar 31, 2026 |
| BlackRock, Inc. | 1,454,839 | 3.6M $ | as of Mar 31, 2026 |
| DIMENSIONAL FUND ADVISORS LP | 686,199 | 1.7M $ | as of Mar 31, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | 610,926 | 1.5M $ | as of Mar 31, 2026 |
| Peapod Lane Capital LLC | 599,805 | 1.5M $ | as of Mar 31, 2026 |
| STATE STREET CORP | 421,922 | 1M $ | as of Mar 31, 2026 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 332,313 | 814.2K $ | as of Mar 31, 2026 |
| CITADEL ADVISORS LLC | 331,367 | 811.8K $ | as of Mar 31, 2026 |
| Empowered Funds, LLC | 241,313 | 591.2K $ | as of Mar 31, 2026 |
| RENAISSANCE TECHNOLOGIES LLC | 231,972 | 568.3K $ | as of Mar 31, 2026 |
| GOLDMAN SACHS GROUP INC | 223,489 | 547.5K $ | as of Mar 31, 2026 |
| ACADIAN ASSET MANAGEMENT LLC | 204,105 | 498 $ | as of Mar 31, 2026 |
| NORTHERN TRUST CORP | 187,128 | 458.5K $ | as of Mar 31, 2026 |
| LOS ANGELES CAPITAL MANAGEMENT LLC | 163,259 | 400K $ | as of Mar 31, 2026 |
| Boston Partners | 154,388 | 378.3K $ | as of Mar 31, 2026 |
| MORGAN STANLEY | 152,723 | 374.2K $ | as of Mar 31, 2026 |
| Bank of New York Mellon Corp | 132,539 | 324.7K $ | as of Mar 31, 2026 |
| Centiva Capital, LP | 111,108 | 272.2K $ | as of Mar 31, 2026 |
| STIFEL FINANCIAL CORP | 105,572 | 258.7K $ | as of Mar 31, 2026 |
| OSAIC HOLDINGS, INC. | 72,419 | 177.4K $ | as of Mar 31, 2026 |
| WELLINGTON MANAGEMENT GROUP LLP | 68,415 | 167.6K $ | as of Mar 31, 2026 |
| Russell Investments Group, Ltd. | 68,030 | 166.7K $ | as of Mar 31, 2026 |
| AQR CAPITAL MANAGEMENT LLC | 66,731 | 163.5K $ | as of Mar 31, 2026 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 58,861 | 144.2K $ | as of Mar 31, 2026 |
Declared shareholders of Mammoth Energy Services Inc
There are 2 beneficial ownership filings. These stakes do not add up. An asset manager that files includes its own funds, which already appear among the funds on this page.
| Shareholder | Declared stake | Shares | |
|---|---|---|---|
| Wexford Capital LP and 3 others | 25.06 % | 12,071,823 | as of Jun 17, 2026 · SCHEDULE 13G |
| Charles E. Davidson and 1 other | 13.43 % | 6,470,441 | as of Jun 17, 2026 · SCHEDULE 13G |
Cite this page
Titelia. "Fund shareholders of Mammoth Energy Services Inc". https://titelia.com/en/stocks/mammoth-energy-services-inc-US56155L1089