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Mammoth Energy Services (TUSK) Institutional Ownership

Mammoth Energy Services logo
$2.37 -0.01 (-0.42%)
Closing price 09/12/2025 04:00 PM Eastern
Extended Trading
$2.37 0.00 (-0.21%)
As of 09/12/2025 04:57 PM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Polygon.io. Learn more.
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Institutional Ownership Changes (13F Filings) for Mammoth Energy Services (NASDAQ:TUSK)

Current
Institutional Ownership
Percentage
79.67%
Number of
Institutional Buyers
(last 12 months)
26
Total
Institutional Inflows
(last 12 months)
$6.57M
Number of
Institutional Sellers
(last 12 months)
12
Total
Institutional Outflows
(last 12 months)
$1.84M
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TUSK Institutional Buying and Selling by Quarter

Mammoth Energy Services Major Shareholders & Ownership History

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
9/4/2025 Osaic Holdings Inc.29,433$82K0.0%-50.6%0.061%
8/15/2025 Bridgeway Capital Management LLC350,454$981K0.0%+4.4%0.727%
8/15/2025 Adage Capital Partners GP L.L.C.4,575,000$12.81M0.0%+10.2%9.494%
8/14/2025 Jane Street Group LLC17,268$48K0.0%+48.3%0.036%
8/13/2025 Marshall Wace LLP57,436$161K0.0%N/A0.119%
8/12/2025 XTX Topco Ltd36,662$103K0.0%N/A0.076%
8/12/2025 JPMorgan Chase & Co.185,761$520K0.0%+726.7%0.386%
8/8/2025 Intech Investment Management LLC12,080$34K0.0%-32.4%0.025%
8/8/2025 Police & Firemen s Retirement System of New Jersey9,637$27K0.0%N/A0.020%
8/8/2025 Geode Capital Management LLC580,659$1.63M0.0%+6.5%1.206%
7/10/2025 Wealth Enhancement Advisory Services LLC12,121$34K0.0%N/A0.025%
6/27/2025 Goldman Sachs Group Inc.66,588$136K0.0%-25.6%0.138%
5/16/2025Empowered Funds LLC159,685$326K0.0%+8.9%0.332%
5/16/2025Goldman Sachs Group Inc.66,588$136K0.0%-25.6%0.138%
5/16/2025Adage Capital Partners GP L.L.C.4,150,000$8.47M0.0%+1.2%8.623%
5/14/2025Valueworks LLC2,808,860$5.73M2.2%-0.5%5.836%
5/14/2025Wellington Management Group LLP61,799$126K0.0%+24.7%0.128%
5/12/2025Nuveen LLC36,843$75K0.0%N/A0.077%
5/6/2025Royce & Associates LP1,293,637$2.64M0.0%-10.8%2.688%
4/9/2025NBC Securities Inc.56,940$116K0.0%+101,578.6%0.118%
4/1/2025Penbrook Management LLC14,000$29K0.0%-36.9%0.029%
2/17/2025Valueworks LLC2,823,185$8.47M2.8%-10.0%5.866%
2/17/2025Occudo Quantitative Strategies LP13,749$41K0.0%N/A0.029%
2/17/2025Bridgeway Capital Management LLC460,274$1.38M0.0%+14.1%0.956%
2/17/2025Bank of America Corp DE22,882$69K0.0%+45.8%0.048%
2/14/2025PDT Partners LLC15,450$46K0.0%N/A0.032%
2/14/2025Northern Trust Corp206,039$618K0.0%+2.1%0.428%
2/14/2025Adage Capital Partners GP L.L.C.4,100,000$12.30M0.0%+1.1%8.519%
2/14/2025Dimensional Fund Advisors LP991,223$2.97M0.0%+11.0%2.059%
2/13/2025Marshall Wace LLP14,163$42K0.0%N/A0.029%
2/13/2025Barclays PLC61,549$185K0.0%+7.8%0.128%
2/13/2025Invesco Ltd.10,122$30K0.0%N/A0.021%
2/12/2025Rangeley Capital LLC432,338$1.30M1.2%N/A0.898%
2/12/2025Geode Capital Management LLC537,376$1.61M0.0%+1.6%1.117%
2/12/2025JPMorgan Chase & Co.63,079$189K0.0%+465.2%0.131%
2/11/2025LPL Financial LLC10,057$30K0.0%-35.4%0.021%
2/10/2025Royce & Associates LP1,449,922$4.35M0.0%+7.3%3.013%
2/6/2025Charles Schwab Investment Management Inc.70,674$212K0.0%+11.1%0.147%
2/4/2025Bank of New York Mellon Corp121,993$366K0.0%-18.2%0.253%
1/28/2025Empowered Funds LLC146,574$440K0.0%+76.3%0.305%
1/23/2025Penbrook Management LLC22,200$67K0.0%-32.1%0.046%
12/26/2024JPMorgan Chase & Co.11,160$46K0.0%-54.1%0.023%
11/19/2024Barclays PLC57,081$233K0.0%+65.1%0.119%
11/16/2024Geode Capital Management LLC528,850$2.16M0.0%+1.9%1.099%
11/15/2024Barclays PLC57,081$233K0.0%+65.1%0.119%
11/15/2024XTX Topco Ltd12,964$53K0.0%N/A0.027%
11/15/2024Jane Street Group LLC18,544$76K0.0%-50.0%0.039%
11/15/2024Wellington Management Group LLP48,071$197K0.0%N/A0.100%
11/15/2024Wexford Capital LP22,068,212$90.26M21.6%0.0%45.851%
11/15/2024State Street Corp403,688$1.65M0.0%+1.4%0.839%
11/13/2024FMR LLC10,967$45K0.0%+32.7%0.023%
11/6/2024Archer Investment Corp12,400$51K0.0%-42.1%0.026%
11/6/2024Empowered Funds LLC83,157$340K0.0%+5.3%0.173%
11/6/2024Royce & Associates LP1,351,224$5.53M0.1%+15.2%2.807%
10/3/2024SG Americas Securities LLC10,345$42K0.0%N/A0.021%
8/9/2024Renaissance Technologies LLC130,672$429K0.0%-2.7%0.271%
8/9/2024Dimensional Fund Advisors LP806,280$2.65M0.0%+14.0%1.675%
8/6/2024Acadian Asset Management LLC54,357$177K0.0%-73.9%0.113%
7/26/2024Bank of New York Mellon Corp166,591$546K0.0%+6.9%0.346%
7/24/2024Penbrook Management LLC61,900$203K0.1%-4.6%0.129%
5/13/2024O Shaughnessy Asset Management LLC19,247$70K0.0%-31.8%0.040%
5/10/2024Acadian Asset Management LLC207,961$756K0.0%-14.8%0.433%
5/10/2024Vanguard Group Inc.723,772$2.64M0.0%+2.5%1.508%
5/7/2024Empowered Funds LLC73,423$267K0.0%+8.0%0.153%
5/1/2024BNP Paribas Financial Markets11,265$41K0.0%+55.8%0.023%
4/18/2024Penbrook Management LLC64,900$236K0.1%-15.6%0.135%
4/5/2024NBC Securities Inc.55,140$211K0.0%-6.1%0.115%
2/14/2024CastleKnight Management LP167,433$747K0.0%-10.7%0.349%
1/31/2024Archer Investment Corp21,400$95K0.0%+25.1%0.045%
1/16/2024Penbrook Management LLC76,900$343K0.2%-4.9%0.160%
1/12/2024SG Americas Securities LLC12,699$57K0.0%+26.5%0.026%
11/15/2023Adage Capital Partners GP L.L.C.3,700,000$17.17M0.0%+12.1%7.718%
11/14/2023O Shaughnessy Asset Management LLC57,096$265K0.0%+56.0%0.119%
11/13/2023Connor Clark & Lunn Investment Management Ltd.93,214$433K0.0%-3.8%0.194%
11/13/2023Acadian Asset Management LLC437,601$2.03M0.0%-12.5%0.913%
11/13/2023Valueworks LLC3,374,263$15.62M5.7%-0.3%7.039%
11/13/2023Stokes Family Office LLC12,390$57K0.0%N/A0.026%
11/13/2023WINTON GROUP Ltd35,816$166K0.0%+250.0%0.075%
11/8/2023Boston Partners35,093$163K0.0%-43.6%0.073%
11/7/2023New York State Common Retirement Fund10,680$50K0.0%-48.9%0.022%
11/4/2023NBC Securities Inc.58,740$272K0.0%N/A0.123%
10/27/2023Allspring Global Investments Holdings LLC8,089$38K0.0%N/A0.017%
10/13/2023SG Americas Securities LLC10,036$47K0.0%N/A0.021%
9/21/2023Barclays PLC29,674$143K0.0%-42.4%0.062%
8/15/2023Kanen Wealth Management LLC1,767,074$8.54M5.7%-0.5%3.704%
8/14/2023Wexford Capital LP22,566,238$109.00M21.6%+0.4%47.299%
8/14/2023X Square Capital LLC215,092$1.04M0.7%-46.9%0.451%
8/14/2023Prelude Capital Management LLC10,403$50K0.0%N/A0.022%
8/10/2023Cruiser Capital Advisors LLC17,125$83K0.1%N/A0.036%
8/10/2023Boston Partners62,186$300K0.0%+53.8%0.130%
8/7/2023Acadian Asset Management LLC500,157$2.42M0.0%-25.1%1.048%
8/4/2023American International Group Inc.11,214$54K0.0%N/A0.024%
7/27/2023EA Series Trust25,616$124K0.0%N/A0.054%
7/17/2023Ritholtz Wealth Management10,936$53K0.0%-36.0%0.023%
5/15/2023Wexford Capital LP22,474,914$94.84M19.6%0.0%47.104%
5/15/2023Valueworks LLC3,400,768$14.35M5.5%-3.2%7.128%
5/12/2023Long Focus Capital Management LLC29,470$124K0.0%-48.9%0.062%
5/11/2023Acadian Asset Management LLC668,056$2.82M0.0%+140.7%1.400%
5/11/2023X Square Capital LLC405,092$1.71M1.0%+3.8%0.849%
5/10/2023Connor Clark & Lunn Investment Management Ltd.95,825$404K0.0%+36.8%0.201%
(Data available from 1/1/2016 forward)

TUSK Institutional Ownership - Frequently Asked Questions

Who are the largest shareholders of TUSK shares?

During the previous two years, 47 institutional investors and hedge funds held shares of Mammoth Energy Services. The most heavily invested institutionals were Wexford Capital LP ($90.26M), Adage Capital Partners GP L.L.C. ($12.81M), Valueworks LLC ($5.73M), Dimensional Fund Advisors LP ($2.97M), Royce & Associates LP ($2.64M), Vanguard Group Inc. ($2.64M), and State Street Corp ($1.65M).Learn more on Mammoth Energy Services' institutional investors.

What percentage of Mammoth Energy Services' stock is owned by institutional investors?

79.67% of Mammoth Energy Services' stock is owned by institutional investors. Learn more on TUSK's institutional investor holdings.

Which institutional investors have been buying Mammoth Energy Services' stock?

Of the 34 institutional investors that purchased Mammoth Energy Services' stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Adage Capital Partners GP L.L.C. ($921.28K), Rangeley Capital LLC ($432.34K), Royce & Associates LP ($276.94K), JPMorgan Chase & Co. ($215.21K), Dimensional Fund Advisors LP ($197.39K), NBC Securities Inc. ($115.62K), and Empowered Funds LLC ($86.11K).

How much institutional buying is happening at Mammoth Energy Services?

Institutional investors have bought a total of 2,178,715 shares in the last 24 months. This purchase volume represents approximately $6.57M in transactions.

Which of Mammoth Energy Services' major shareholders have been selling company stock?

Of the 12 institutional investors that sold Mammoth Energy Services' stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Valueworks LLC ($327.51K), Royce & Associates LP ($156.29K), Goldman Sachs Group Inc. ($45.71K), Osaic Holdings Inc. ($30.12K), Bank of New York Mellon Corp ($27.19K), Penbrook Management LLC ($18.70K), and Jane Street Group LLC ($18.55K).

How much institutional selling is happening at Mammoth Energy Services?

Institutional investors have sold a total of 667,817 shares in the last 24 months. This volume of shares sold represents approximately $1.84M in transactions.


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This page (NASDAQ:TUSK) was last updated on 9/13/2025 by MarketBeat.com Staff
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