Time on boards
- Boards served
- 2
- Current seats
- 2
- Board service
- 7 years
- Director since
- 2023
7 years of board service in total across 2 boards, counting each seat separately. Longest: Nephros Inc., 3 years.
Shareholder support
Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.
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Mammoth Energy Services Inc. June 25, 202695.9%
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Mammoth Energy Services Inc. June 11, 202599.2%
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Mammoth Energy Services Inc. June 12, 202498.5%
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Mammoth Energy Services Inc. June 7, 202399.3%
Insider trades
All notable trades →From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.
| Date | Company | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| Aug 12, 2026 | Nephros Inc. | Grant or award | +2,418 | — | — |
| Jun 12, 2026 | Mammoth Energy Services Inc. | Open-market purchase | +2,000 | $3.28 | $6,560 |
| Jun 11, 2026 | Mammoth Energy Services Inc. | Open-market purchase | +2,500 | $3.22 | $8,050 |
| May 28, 2026 | Mammoth Energy Services Inc. | Open-market purchase | +3,000 | $3.25 | $9,750 |
| May 26, 2026 | Mammoth Energy Services Inc. | Open-market purchase | +2,500 | $3.24 | $8,100 |
| May 11, 2026 | Nephros Inc. | Grant or award | +3,574 | — | — |
| Mar 16, 2026 | Nephros Inc. | Grant or award | +3,610 | — | — |
| Dec 11, 2025 | Mammoth Energy Services Inc. | Open-market purchase | +10,000 | $1.89 | $18,900 |
| Nov 10, 2025 | Nephros Inc. | Grant or award | +5,391 | — | — |
| Jan 1, 2025 | Nephros Inc. | Grant or award | +22,418 | — | — |
| Dec 12, 2024 | Mammoth Energy Services Inc. | Open-market purchase | +1,000 | $2.97 | $2,970 |
| Jun 12, 2024 | Mammoth Energy Services Inc. | Grant or award | +27,856 | — | — |
| May 30, 2024 | Nephros Inc. | Open-market purchase | +3,000 | $2.24 | $6,720 |
| May 30, 2024 | Mammoth Energy Services Inc. | Open-market purchase | +3,000 | $3.65 | $10,950 |
| May 28, 2024 | Nephros Inc. | Open-market purchase | +2,000 | $2.22 | $4,440 |
Questions about Arthur H. Amron
What boards is Arthur H. Amron on?
Arthur H. Amron sits on the boards of Mammoth Energy Services Inc. and Nephros Inc.
How long has Arthur H. Amron served on boards?
Our records show at least 7 years of board service across 2 boards, the earliest from 2023.
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