Security key
56155L108
MAMMOTH ENERGY SERVICES, INC. - Common Stock, $0.01 par value (TUSK)
CUSIP: 56155L108
Q1 2023 13F Holders as of 31 Mar 2023
- Security type / class
- Equity / Common Stock, $0.01 par value
- Total 13F shares
- 38,362,997
- Total 13F value
- $161,890,696
- Share change
- +1,177,872
- Put/Call ratio
- 319%
- SEC-reported price per share
- $4.22
- Number of holders
- 76
- Value change
- +$2,610,048
- Number of buys
- 47
- Number of sells
- 30
- Shares outstanding
- 48,179,010
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q1 2023
Institutions
76
Top holders
10
TUSK full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q2 2026
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.
Comparable stake leader
WEXFORD CAPITAL LP
Disclosed value leader
WEXFORD CAPITAL LP
Comparable rows
15/15
Latest evidence
31 Dec 2022
13F
Lead comparable stake: 47%
Showing 1-6 of 15 holder rows.
Quick read
WEXFORD CAPITAL LP leads the comparable SEC ownership view at 47%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens WEXFORD CAPITAL LP's linked filing trail.
Comparable ownership
Top 5
WEXFORD CAPITAL LP
47%
VALUEWORKS LLC
7.3%
ADAGE CAPITAL PARTNERS GP, L.L.C.
6.5%
ROYCE & ASSOCIATES LP
2.9%
Kanen Wealth Management LLC
2.3%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| WEXFORD CAPITAL LP |
13F
Company
|
47%
|
$194,408,005
22,485,407 shares
|
— | 31 Dec 2022 |
| VALUEWORKS LLC |
13F
Company
|
7.3%
|
$30,376,000
3,511,692 shares
|
— | 31 Dec 2022 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. |
13F
Company
|
6.5%
|
$27,050,868
3,127,268 shares
|
— | 31 Dec 2022 |
| ROYCE & ASSOCIATES LP |
13F
Company
|
2.9%
|
$11,948,193
1,381,294 shares
|
— | 31 Dec 2022 |
| Kanen Wealth Management LLC |
13F
Company
|
2.3%
|
$9,641,082
1,114,576 shares
|
— | 31 Dec 2022 |
| VANGUARD GROUP INC |
13F
Company
|
1%
|
$4,357,654
503,775 shares
|
— | 31 Dec 2022 |
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 2023
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
76
Shares
38,362,997
Rows available
76
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-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 did not pass the local price check.
Compare Q1 2023 vs Q1 2023 Across Filers
Q1 2023 holders
76
Q1 2023 holders
76
Holder diff
0
| Investor | Q1 2023 Shares | Q1 2023 Shares | Share Diff | Share Chg % | Q1 2023 value | Q1 2023 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend