MAMMOTH ENERGY SERVICES, INC. - Common Stock, $0.01 par value (TUSK)
CUSIP: 56155L108
Q2 2025 13F Holders as of 30 Jun 2025
- Type / Class
- Equity / Common Stock, $0.01 par value
- Shares outstanding
- 48,165,948
- Total 13F shares
- 36,401,771
- Share change
- -915,939
- Total reported value
- $101,932,908
- Price per share
- $2.80
- Number of holders
- 65
- Value change
- -$2,372,899
- Number of buys
- 34
- Number of sells
- 23
Quarterly Holders Quick Answers
What is CUSIP 56155L108?
CUSIP 56155L108 identifies TUSK - MAMMOTH ENERGY SERVICES, INC. - Common Stock, $0.01 par value in SEC institutional holdings data.
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Recent filing periods for CUSIP 56155L108:
Top shareholders of TUSK - MAMMOTH ENERGY SERVICES, INC. - Common Stock, $0.01 par value (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| WEXFORD CAPITAL LP |
3/4/5
13F
|
Director, 10%+ Owner · Company |
46%
from 13F
|
22,030,872
|
$95,922,417 | — | 12 Mar 2024 | |
| GPOR Distribution Trust |
3/4/5
|
10%+ Owner |
—
class O/S missing
|
9,829,548
|
$42,797,852 | — | 30 Jun 2021 | |
| ADAGE CAPITAL PARTNERS GP, L.L.C. |
13F
|
Company |
8.6%
|
4,150,000
|
$8,466,000 | — | 31 Mar 2025 | |
| VALUEWORKS LLC |
13D/G
13F
|
Company |
5%
|
2,389,031
|
$6,689,287 | $0 | 30 Jun 2025 | |
| Arty Straehla |
3/4/5
|
Chief Executive Officer, Director |
—
class O/S missing
|
1,013,899
|
$4,414,516 | — | 18 Dec 2023 | |
| BlackRock, Inc. |
13F
|
Company |
3%
|
1,460,797
|
$2,980,025 | — | 31 Mar 2025 | |
| ROYCE & ASSOCIATES LP |
13F
|
Company |
2.7%
|
1,293,637
|
$2,639,019 | — | 31 Mar 2025 | |
| DIMENSIONAL FUND ADVISORS LP |
13F
|
Company |
2.1%
|
1,001,204
|
$2,042,593 | — | 31 Mar 2025 | |
| VANGUARD GROUP INC |
13F
|
Company |
2%
|
944,535
|
$1,926,851 | — | 31 Mar 2025 | |
| Mark E. Layton |
3/4/5
|
CFO and Secretary |
—
class O/S missing
|
418,985
|
$1,824,261 | — | 03 Mar 2023 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
1.1%
|
545,164
|
$1,112,283 | — | 31 Mar 2025 | |
| James D. Palm |
3/4/5
|
Director |
—
class O/S missing
|
240,144
|
$876,069 | — | 12 Jun 2024 | |
| STATE STREET CORP |
13F
|
Company |
0.84%
|
402,363
|
$820,821 | — | 31 Mar 2025 | |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC |
13F
|
Company |
0.7%
|
335,685
|
$684,797 | — | 31 Mar 2025 | |
| Corey J. Booker |
3/4/5
|
Director |
—
class O/S missing
|
125,488
|
$435,443 | — | 22 Nov 2024 | |
| Rangeley Capital, LLC |
13F
|
Company |
0.43%
|
205,880
|
$419,995 | — | 31 Mar 2025 | |
| NORTHERN TRUST CORP |
13F
|
Company |
0.42%
|
203,027
|
$414,175 | — | 31 Mar 2025 | |
| CITADEL ADVISORS LLC |
13F
|
Company |
0.38%
|
184,071
|
$375,505 | — | 31 Mar 2025 | |
| CastleKnight Management LP |
13F
|
Company |
0.35%
|
167,433
|
$341,563 | — | 31 Mar 2025 | |
| Arthur L. Smith |
3/4/5
|
Director |
0.27%
|
130,034
|
$326,385 | -$213,050 | 22 May 2025 | |
| Empowered Funds, LLC |
13F
|
Company |
0.33%
|
159,685
|
$325,757 | — | 31 Mar 2025 | |
| RENAISSANCE TECHNOLOGIES LLC |
13F
|
Company |
0.28%
|
135,272
|
$275,955 | — | 31 Mar 2025 | |
| Bank of New York Mellon Corp |
13F
|
Company |
0.25%
|
121,249
|
$247,348 | — | 31 Mar 2025 | |
| STIFEL FINANCIAL CORP |
13F
|
Company |
0.22%
|
105,572
|
$215,367 | — | 31 Mar 2025 | |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP |
13F
|
Company |
0.19%
|
93,489
|
$190,718 | — | 31 Mar 2025 | |
| MORGAN STANLEY |
13F
|
Company |
0.19%
|
91,234
|
$186,116 | — | 31 Mar 2025 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC |
13F
|
Company |
0.15%
|
70,674
|
$144,175 | — | 31 Mar 2025 | |
| GOLDMAN SACHS GROUP INC |
13F
|
Company |
0.14%
|
66,588
|
$135,840 | — | 31 Mar 2025 | |
| WELLINGTON MANAGEMENT GROUP LLP |
13F
|
Company |
0.13%
|
61,799
|
$126,070 | — | 31 Mar 2025 | |
| OSAIC HOLDINGS, INC. |
13F
|
Company |
0.12%
|
59,550
|
$121,479 | — | 31 Mar 2025 | |
| MILLENNIUM MANAGEMENT LLC |
13F
|
Company |
0.12%
|
58,674
|
$119,695 | — | 31 Mar 2025 | |
| NBC SECURITIES, INC. |
13F
|
Company |
0.12%
|
56,940
|
$116,000 | — | 31 Mar 2025 | |
| Paul M. Jacobi |
3/4/5
|
Director |
—
class O/S missing
|
27,856
|
$101,621 | — | 12 Jun 2024 | |
| BARCLAYS PLC |
13F
|
Company |
0.1%
|
49,521
|
$101,023 | — | 31 Mar 2025 | |
| Nuveen, LLC |
13F
|
Company |
0.08%
|
36,843
|
$75,160 | — | 31 Mar 2025 | |
| UBS Group AG |
13F
|
Company |
0.06%
|
30,221
|
$61,651 | — | 31 Mar 2025 | |
| PRICE T ROWE ASSOCIATES INC /MD/ |
13F
|
Company |
0.05%
|
26,473
|
$55,000 | — | 31 Mar 2025 | |
| RHUMBLINE ADVISERS |
13F
|
Company |
0.05%
|
24,047
|
$49,050 | — | 31 Mar 2025 | |
| NJ State Employees Deferred Compensation Plan |
13F
|
Company |
0.05%
|
24,000
|
$48,960 | — | 31 Mar 2025 | |
| JPMORGAN CHASE & CO |
13F
|
Company |
0.05%
|
22,470
|
$45,839 | — | 31 Mar 2025 | |
| INTECH INVESTMENT MANAGEMENT LLC |
13F
|
Company |
0.04%
|
17,873
|
$36,461 | — | 31 Mar 2025 | |
| CITIGROUP INC |
13F
|
Company |
0.04%
|
17,319
|
$35,331 | — | 31 Mar 2025 | |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. |
13F
|
Company |
0.03%
|
14,594
|
$29,772 | — | 31 Mar 2025 | |
| WELLS FARGO & COMPANY/MN |
13F
|
Company |
0.03%
|
14,584
|
$29,751 | — | 31 Mar 2025 | |
| BANK OF AMERICA CORP /DE/ |
13F
|
Company |
0.03%
|
14,177
|
$28,921 | — | 31 Mar 2025 | |
| Penbrook Management LLC |
13F
|
Company |
0.03%
|
14,000
|
$28,560 | — | 31 Mar 2025 | |
| FMR LLC |
13F
|
Company |
0.03%
|
13,434
|
$27,405 | — | 31 Mar 2025 | |
| GSA CAPITAL PARTNERS LLP |
13F
|
Company |
0.02%
|
12,029
|
$25,000 | — | 31 Mar 2025 | |
| Archer Investment Corp |
13F
|
Company |
0.03%
|
12,200
|
$24,888 | — | 31 Mar 2025 | |
| PDT Partners, LLC |
13F
|
Company |
0.03%
|
12,074
|
$24,631 | — | 31 Mar 2025 |
Institutional Holders of MAMMOTH ENERGY SERVICES, INC. - Common Stock, $0.01 par value (TUSK) as of Q2 2025
As of 30 Jun 2025,
MAMMOTH ENERGY SERVICES, INC. - Common Stock, $0.01 par value (TUSK) was held by
65 institutional
shareholders
that filed Form 13F with the SEC.
Together, they reported ownership of
36,401,771 shares.
The largest 10 holders included
WEXFORD CAPITAL LP, ADAGE CAPITAL PARTNERS GP, L.L.C., VALUEWORKS LLC, BlackRock, Inc., DIMENSIONAL FUND ADVISORS LP, VANGUARD GROUP INC, GEODE CAPITAL MANAGEMENT, LLC, STATE STREET CORP, BRIDGEWAY CAPITAL MANAGEMENT, LLC, and NORTHERN TRUST CORP.
This page lists
65
institutional shareholders reporting positions in this security
for the Q2 2025 filing period.
| Investor | Option | Weight % | Change % | Value $ | * Price | Shares | Share Change | Activity | Report Period |
|---|
Compare Q2 2025 vs Q1 2025 Across Filers
Q1 2025 holders
65
Q2 2025 holders
65
Holder diff
0
| Investor | Q1 2025 Shares | Q2 2025 Shares | Share Diff | Share Chg % | Q1 2025 Value $ | Q2 2025 Value $ | Value Diff $ | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.
An asterisk sign (*) next to the price indicates that the price is likely invalid.