Arthur H Amron insider trades: Mammoth Energy Services (TUSK) stock purchases
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Arthur reports to the SEC
Open-market buys and sales
8 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Jun 12, 2026 | TUSK | ↑ Buy | 4,500 | $3.25 | $15K | Direct | Jun 15, 2026 (3d) |
| May 28, 2026 | TUSK | ↑ Buy | 5,500 | $3.25 | $18K | Direct | May 28, 2026 (0d) |
| Dec 11, 2025 | TUSK | ↑ Buy | 10,000 | $1.89 | $19K | Direct | Dec 15, 2025 (4d) |
| Dec 12, 2024 | TUSK | ↑ Buy | 1,000 | $2.97 | $3K | Direct | Dec 16, 2024 (4d) |
| May 30, 2024 | TUSK | ↑ Buy | 5,000 | $3.62 | $18K | Direct | May 30, 2024 (0d) |
| May 30, 2024 | NEPH | ↑ Buy | 5,000 | $2.24 | $11K | Direct | May 30, 2024 (0d) |
| Mar 12, 2024 | NEPH | ↑ Buy | 7,000 | $2.45 | $17K | Direct | Mar 14, 2024 (2d) |
| Mar 12, 2024 | TUSK | ↑ Buy | 3,000 | $3.72 | $11K | Direct | Mar 14, 2024 (2d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other TUSK insiders
Open-market trades in the last 12 months
About Arthur H Amron's insider trades
Arthur H Amron is a director at Mammoth Energy Services (TUSK). Since Mar 12, 2024, Arthur has reported 8 open-market purchases worth $112K and no sales on SEC Form 4. In the last 12 months: 3 buys ($51K).
Their filings also include grants and awards (31 filings), other transactions (7 filings). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every TUSK insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.