Amron Arthur H (CIK 1179697) reported 6 SEC Form 4 insider transactions across 2 companies over the past 18 months (most recent 2026-06-22). Recent activity: Buy TUSK (19,121 shares), Buy TUSK (10,329 shares), Buy NEPH (3,574 shares), Buy NEPH (3,610 shares), Buy TUSK (10,000 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-06-22 | MAMMOTH ENERGY SERVICES, INC. (TUSK) | Director | Buy | 19,121 | $0 |
| 2026-06-22 | MAMMOTH ENERGY SERVICES, INC. (TUSK) | Director | Buy | 10,329 | $0 |
| 2026-06-12 | NEPHROS INC (NEPH) | Director | Buy | 3,574 | $0 |
| 2026-03-18 | NEPHROS INC (NEPH) | Director | Buy | 3,610 | $0 |
| 2025-12-15 | MAMMOTH ENERGY SERVICES, INC. (TUSK) | Director | Buy | 10,000 | $18,900 |
| 2025-11-13 | NEPHROS INC (NEPH) | Director | Buy | 5,391 | $0 |
Source: SEC Form 4 filings · as of 2026-06-22