Security key
56155L108
MAMMOTH ENERGY SERVICES, INC. - Common Stock, $0.01 par value (TUSK)
CUSIP: 56155L108
Q3 2023 13F Holders as of 30 Sep 2023
- Security type / class
- Equity / Common Stock, $0.01 par value
- Total 13F shares
- 39,576,263
- Total 13F value
- $183,640,137
- Share change
- +893,349
- Put/Call ratio
- 49%
- SEC-reported price per share
- $4.64
- Number of holders
- 74
- Value change
- +$4,122,238
- Number of buys
- 34
- 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
Q3 2023
Institutions
74
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
30 Jun 2023
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%
ADAGE CAPITAL PARTNERS GP, L.L.C.
6.8%
Kanen Wealth Management LLC
3.7%
ROYCE & ASSOCIATES LP
2.7%
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%
|
$108,994,929
22,566,238 shares
|
— | 30 Jun 2023 |
| VALUEWORKS LLC |
13F
Company
|
7%
|
$16,342,000
3,383,463 shares
|
— | 30 Jun 2023 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. |
13F
Company
|
6.8%
|
$15,939,000
3,300,000 shares
|
— | 30 Jun 2023 |
| Kanen Wealth Management LLC |
13F
Company
|
3.7%
|
$8,534,967
1,767,074 shares
|
— | 30 Jun 2023 |
| ROYCE & ASSOCIATES LP |
13F
Company
|
2.7%
|
$6,236,467
1,291,194 shares
|
— | 30 Jun 2023 |
| BlackRock Finance, Inc. |
13F
Company
|
2.7%
|
$6,183,564
1,280,241 shares
|
— | 30 Jun 2023 |
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 Q3 2023
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
74
Shares
39,576,263
Rows available
74
| 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 Q3 2023 vs Q2 2023 Across Filers
Q2 2023 holders
72
Q3 2023 holders
74
Holder diff
2
| Investor | Q2 2023 Shares | Q3 2023 Shares | Share Diff | Share Chg % | Q2 2023 value | Q3 2023 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend