Plaumann Mark Lawrence
Director
Buy
Calculated transaction value
$15K
5,000 shares @ $3
Traded
Sep 16, 2026
Filed
Sep 17, 2026
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Mammoth Energy Services
TUSK
EnergyOil & Gas
Transactions reported in official disclosures
Price with disclosed trades
Daily closes, past year · marks sit on transaction dates, sized by value
12 trades
| Reporting person | Filed | Transaction | Transaction value | Source | Actions |
|---|---|---|---|---|---|
| Plaumann Mark Lawrence Director | Sep 17, 2026 1-day lag | Buy Sep 16, 2026 | $15K Filed shares x price | SEC Form 4 View filing | |
| Lancaster Phillip Director | Jul 1, 2026 5-day lag | Other Jun 26, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Davidson Charles E 10% owner | Jun 22, 2026 5-day lag | Other Jun 17, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Wexford Capital Lp Chief Business Officer | Jun 22, 2026 5-day lag | Buy Jun 17, 2026 | $10.47M Filed shares x price | SEC Form 4 View filing | |
| Wexford Capital Lp Chief Business Officer | Jun 22, 2026 5-day lag | Other Jun 17, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Davidson Charles E 10% owner | Jun 22, 2026 5-day lag | Other Jun 17, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Amron Arthur H Director | Jun 22, 2026 5-day lag | Other Jun 17, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Amron Arthur H Director | Jun 22, 2026 5-day lag | Other Jun 17, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Wexford Capital Lp Chief Business Officer | Jun 22, 2026 5-day lag | Other Jun 17, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Jacobi Paul M. Chief Business Officer | Jun 22, 2026 5-day lag | Other Jun 17, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Amron Arthur H Director | Jun 15, 2026 3-day lag | Buy Jun 12, 2026 | $6.56K Filed shares x price | SEC Form 4 View filing | |
| Amron Arthur H Director | Jun 15, 2026 4-day lag | Buy Jun 11, 2026 | $8.05K Filed shares x price | SEC Form 4 View filing |
Lancaster Phillip
Director
Other
Calculated transaction value
$0
68,152 shares @ $0
Traded
Jun 26, 2026
Filed
Jul 1, 2026
Davidson Charles E
10% owner
Other
Calculated transaction value
$0
2,403,831 shares @ $0
Traded
Jun 17, 2026
Filed
Jun 22, 2026
Wexford Capital Lp
Chief Business Officer
Buy
Calculated transaction value
$10.47M
4,019,574 shares @ $2.6
Traded
Jun 17, 2026
Filed
Jun 22, 2026
Wexford Capital Lp
Chief Business Officer
Other
Calculated transaction value
$0
1,072,896 shares @ $0
Traded
Jun 17, 2026
Filed
Jun 22, 2026
Davidson Charles E
10% owner
Other
Calculated transaction value
$0
4,066,610 shares @ $0
Traded
Jun 17, 2026
Filed
Jun 22, 2026
Amron Arthur H
Director
Other
Calculated transaction value
$0
10,329 shares @ $0
Traded
Jun 17, 2026
Filed
Jun 22, 2026
Amron Arthur H
Director
Other
Calculated transaction value
$0
19,121 shares @ $0
Traded
Jun 17, 2026
Filed
Jun 22, 2026
Wexford Capital Lp
Chief Business Officer
Other
Calculated transaction value
$0
6,354,667 shares @ $0
Traded
Jun 17, 2026
Filed
Jun 22, 2026
Jacobi Paul M.
Chief Business Officer
Other
Calculated transaction value
$0
3,211 shares @ $0
Traded
Jun 17, 2026
Filed
Jun 22, 2026
Amron Arthur H
Director
Buy
Calculated transaction value
$6.56K
2,000 shares @ $3.28
Traded
Jun 12, 2026
Filed
Jun 15, 2026
Amron Arthur H
Director
Buy
Calculated transaction value
$8.05K
2,500 shares @ $3.22
Traded
Jun 11, 2026
Filed
Jun 15, 2026