Insider · CIK 0001179697
Arthur H Amron
Files at: NEPH, TUSK, RHNO. On EDGAR ↗
Reported trades — common stock
| Trade | Reported (ET) | Company | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Sep 14, 2026 JForm 4 → | Sep 16, 4:59 pm EDT | NEPHROS INCNEPH | 43,295 | $3.95 | $89,705 | 25,546 | — | |
| Aug 12, 2026 AForm 4 → | Aug 14, 4:05 pm EDT | NEPHROS INCNEPH | 2,418 | — | — | 140,874 | — | |
| Jun 17, 2026 JForm 4 → | Jun 22, 4:32 pm EDT | MAMMOTH ENERGY SERVICES, INC.TUSK | 29,450 | — | — | 10,329 | — | |
| Jun 11, 2026 PForm 4 → | Jun 15, 4:28 pm EDT | MAMMOTH ENERGY SERVICES, INC.TUSK | 4,500 | $3.25 | $14,610 | 67,135 | +7.18% | |
| May 11, 2026 AForm 4 → | Jun 12, 5:57 pm EDT | NEPHROS INCNEPH | 3,574 | — | — | 138,456 | — | late |
Reported trades — derivatives (options, RSUs, warrants)
No reported derivative activity in this period.