Insiders / Amron Arthur H
Amron Arthur H
CIK 1179697personinsider
Companies
2
First seen
Mar 18, 2026
Last activity
Jun 22, 2026
Companies
| Company | Shares held | Latest |
|---|---|---|
| Nephros Inc · NEPH | 138,456 | — |
| Mammoth Energy Services, Inc. · TUSK | 96,585 | — |
All securities held
2 positions · latest reported per filing
| Company | Security | Shares |
|---|---|---|
| Mammoth Energy Services, Inc. | Common Stock | 96,585 |
| Nephros Inc | Common Stock | 138,456 |
Activity
InsidersInstitutions
This person's insider trades (Form 4), across every company.| Date | Action | Company | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|
| May 28, 2026 | Buy | TUSK Mammoth Energy Services, Inc. Common Stock | $9.8K | +3K +5.03% | 62,635 0.13% of shares | low |
| May 26, 2026 | Buy | TUSK Mammoth Energy Services, Inc. Common Stock | $8.1K | +3K +4.38% | 59,635 0.12% of shares | low |
| Jun 11, 2026 | Buy | TUSK Mammoth Energy Services, Inc. Common Stock | $8.0K | +3K +3.99% | 65,135 0.14% of shares | low |
| Jun 12, 2026 | Buy | TUSK Mammoth Energy Services, Inc. Common Stock | $6.6K | +2K +3.07% | 67,135 0.14% of shares | low |
| Jun 17, 2026 | Other | TUSK Mammoth Energy Services, Inc. Common Stock | $0 | +10K | 10,329 0.02% of shares | low |
| Jun 17, 2026 | Other | TUSK Mammoth Energy Services, Inc. Common Stock | $0 | +19K +28.48% | 86,256 0.18% of shares | low |
| May 11, 2026 | Grant | NEPH Nephros Inc Common Stock | $0 | +4K +2.65% | 138,456 1.27% of shares | low |
| Mar 16, 2026 | Grant | NEPH Nephros Inc Common Stock | $0 | +4K +2.75% | 134,882 1.24% of shares | low |