Security key
56155L108
MAMMOTH ENERGY SERVICES, INC. - Common Stock, $0.01 par value (TUSK)
CUSIP: 56155L108
Q1 2025 13F Holders as of 31 Mar 2025
- Security type / class
- Equity / Common Stock, $0.01 par value
- Shares outstanding
- 48,165,948
- Total 13F shares
- 37,314,723
- Share change
- -237,755
- Total reported value
- $76,123,343
- Put/Call ratio
- 950%
- Reported price per share
- $2.04
- Number of holders
- 65
- Value change
- -$545,490
- Number of buys
- 27
- Number of sells
- 31
Security identity
Holder snapshot
Report period
Q1 2025
Institutions
65
Top holders
10
TUSK full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q2 2025
Previous quarter: Q4 2024
MAMMOTH ENERGY SERVICES, INC. SEC filings
MAMMOTH ENERGY SERVICES, INC. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 56155L108
Recent filing periods:
Ownership snapshot
Top reported holders 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. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Lead holder
WEXFORD CAPITAL LP
13D/G signal
—
Evidence rows
15
Latest as of
31 Dec 2024
3/4/5
13F
Lead comparable stake: 46%
Showing 1-6 of 15 holder rows.
Rank 1 holder
WEXFORD CAPITAL LP
3/4/5
13F
- Ownership
- 46%
- Position
- $95.92M
Rank 2 holder
ADAGE CAPITAL PARTNERS GP, L.L.C.
13F
- Ownership
- 8.5%
- Position
- $12.3M
Rank 3 holder
VALUEWORKS LLC
13F
- Ownership
- 5.9%
- Position
- $8.47M
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| WEXFORD CAPITAL LP |
3/4/5
13F
Director, 10%+ Owner · Company
|
46%
from 13F
|
$95,922,417
22,030,872 shares
|
— | 12 Mar 2024 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. |
13F
Company
|
8.5%
|
$12,300,000
4,100,000 shares
|
— | 31 Dec 2024 |
| VALUEWORKS LLC |
13F
Company
|
5.9%
|
$8,469,555
2,823,185 shares
|
— | 31 Dec 2024 |
| BlackRock, Inc. |
13F
Company
|
3.1%
|
$4,427,655
1,475,885 shares
|
— | 31 Dec 2024 |
| ROYCE & ASSOCIATES LP |
13F
Company
|
3%
|
$4,349,766
1,449,922 shares
|
— | 31 Dec 2024 |
| DIMENSIONAL FUND ADVISORS LP |
13F
Company
|
2.1%
|
$2,973,236
991,223 shares
|
— | 31 Dec 2024 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q1 2025
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
65
Shares
37,314,723
Rows available
65
| Investor | Option | Weight % | Change % | Reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* Reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that failed the local validity check.
Compare Q1 2025 vs Q4 2024 Across Filers
Q4 2024 holders
65
Q1 2025 holders
65
Holder diff
0
| Investor | Q4 2024 Shares | Q1 2025 Shares | Share Diff | Share Chg % | Q4 2024 value | Q1 2025 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend