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Mammoth Energy Services Inc
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2.930USD
-0.100-3.30%
Close 06/22, 16:00（ET）Quotes delayed by 15 min
141.69MMarket Cap
13.71P/E TTM
Shareholding Stats
Updated: Thu, May 14
Updated: Thu, May 14
Shareholders
Shareholder Types
Shareholders
Shareholders
Proportion
Wexford Capital LP
45.87%
Adage Capital Management, L.P.
9.50%
BlackRock Institutional Trust Company, N.A.
2.64%
Vanguard Capital Management, LLC
1.70%
Dimensional Fund Advisors, L.P.
1.42%
Other
38.86%
Shareholders
Shareholders
Proportion
Wexford Capital LP
45.87%
Adage Capital Management, L.P.
9.50%
BlackRock Institutional Trust Company, N.A.
2.64%
Vanguard Capital Management, LLC
1.70%
Dimensional Fund Advisors, L.P.
1.42%
Other
38.86%
Shareholder Types
Shareholders
Proportion
Hedge Fund
56.44%
Investment Advisor
10.08%
Investment Advisor/Hedge Fund
5.80%
Individual Investor
2.27%
Research Firm
0.77%
Bank and Trust
0.10%
Venture Capital
0.09%
Pension Fund
0.03%
Other
24.42%
Institutional Shareholding
Updated: Wed, Apr 1
Updated: Wed, Apr 1
Reporting Period
No. of institutions
Shares Held
Proportion
Change
2026Q1
177
36.46M
75.41%
-1.73M
2025Q4
156
36.14M
74.99%
-2.53M
2025Q3
152
36.47M
75.67%
-3.23M
2025Q2
164
38.57M
80.13%
-2.41M
2025Q1
177
39.54M
82.15%
-3.21M
2024Q4
183
39.77M
82.64%
-3.35M
2024Q3
176
39.59M
82.27%
-3.48M
2024Q2
171
41.19M
85.59%
-2.19M
2024Q1
171
41.41M
86.39%
-2.63M
2023Q4
169
41.74M
87.07%
-2.45M
View more
Shareholder Activity
Name
Shares Held
Proportion
Change
Chg %
Date
Wexford Capital LP
22.10M
45.69%
--
--
Dec 31, 2025
Adage Capital Management, L.P.
4.58M
9.46%
--
--
Dec 31, 2025
BlackRock Institutional Trust Company, N.A.
1.27M
2.63%
+21.25K
+1.70%
Dec 31, 2025
Dimensional Fund Advisors, L.P.
699.68K
1.45%
-236.74K
-25.28%
Dec 31, 2025
Geode Capital Management, L.L.C.
585.72K
1.21%
+6.61K
+1.14%
Dec 31, 2025
Layton (Mark E)
418.99K
0.87%
--
--
Apr 01, 2025
Bridgeway Capital Management, LLC
409.99K
0.85%
+20.03K
+5.14%
Dec 31, 2025
State Street Investment Management (US)
408.48K
0.84%
+1.57K
+0.39%
Dec 31, 2025
View more
Related ETFs
Updated: Tue, Dec 2
Updated: Tue, Dec 2
Name
Proportion
Royce Quant Small-Cap Quality Value ETF
0.12%
iShares Micro-Cap ETF
0.01%
ProShares UltraPro Russell2000
0%
DFA Dimensional US Sustainability Core 1 ETF
0%
DFA Dimensional US Core Equity Market ETF
0%
Proshares Ultra Russell 2000
0%
ProShares Hedge Replication ETF
0%
Invesco RAFI US 1500 Small-Mid ETF
0%
Dimensional US Core Equity 1 ETF
0%
DFA Dimensional US Small Cap Value ETF
0%
View more
Royce Quant Small-Cap Quality Value ETF
Proportion0.12%
iShares Micro-Cap ETF
Proportion0.01%
ProShares UltraPro Russell2000
Proportion0%
DFA Dimensional US Sustainability Core 1 ETF
Proportion0%
DFA Dimensional US Core Equity Market ETF
Proportion0%
Proshares Ultra Russell 2000
Proportion0%
ProShares Hedge Replication ETF
Proportion0%
Invesco RAFI US 1500 Small-Mid ETF
Proportion0%
Dimensional US Core Equity 1 ETF
Proportion0%
DFA Dimensional US Small Cap Value ETF
Proportion0%
