TUSK
Mammoth Energy Services Inc
$10.50M
Cluster buy
Discretionary Insider Activity
Date:
05/26/2026
Insiders:
Amron Arthur H, director, and 1 others
Prior trend:
23 months of no clear discretionary insider activity

Summary

A $10.50M cluster buy for Mammoth Energy Services Inc (TUSK) on 05/26/2026 after 23 months of no clear discretionary insider activity trend.

Reports

Action Amount Date Insider Role(s) SEC Filing No
Buy $18K 05/28/2026 Amron Arthur H Director 0001628280-26-038861
Buy $15K 06/15/2026 Amron Arthur H Director 0001628280-26-043211
Buy $10.47M 06/22/2026 WEXFORD CAPITAL LP + 8 Director, Chief Business Officer, a 10%+ owner 0001398344-26-011113

Stake Changes

Action Insider Role(s) Total Change % Change
Buy Amron Arthur H Director $32K 17.5%
WEXFORD CAPITAL LP Director, Chief Business Officer, a 10%+ owner unknown unknown

Transactions

Action Amount Date Insider Security Type SEC Code
Buy $8K 05/26/2026 Amron Arthur H Common Stock Discretionary Purchase
Buy $10K 05/28/2026 Amron Arthur H Common Stock Discretionary Purchase
Buy $8K 06/11/2026 Amron Arthur H Common Stock Discretionary Purchase
Buy $7K 06/12/2026 Amron Arthur H Common Stock Discretionary Purchase
06/17/2026 WEXFORD CAPITAL LP Common Stock Non-discretionary Other
06/17/2026 WEXFORD CAPITAL LP Common Stock Non-discretionary Other
Buy $10.47M 06/17/2026 WEXFORD CAPITAL LP Common Stock Discretionary Purchase

Stats

Prior max multiple:
49.3
Prior median multiple:
121.2

Metadata

Signal ID:
GgG1N8I0vn8hrqEZ
Scanned on:
06/23/2026
Status:
Current