Arthur H. Amron's most recent trade in Mammoth Energy Services Inc was a trade of 10,000 Common Stock done at an average price of $1.9 . Disclosure was reported to the exchange on Dec. 11, 2025.
| Stock | Client Name | Client Category | Action | Reported to Exchange | Quantity | Post Transaction Holding | Traded % | Avg. Price | Value | Security Type |
|---|---|---|---|---|---|---|---|---|---|---|
| Mammoth Energy Services Inc | Arthur H. Amron | Director | Purchase of securities on an exchange or from another person at price $ 1.89 per share. | 11 Dec 2025 | 10,000 | 57,135 (0%) | 0% | 1.9 | 18,900 | Common Stock |
| Nephros Inc | Arthur H. Amron | Director | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 10 Nov 2025 | 5,391 | 131,272 (1%) | 0% | 0 | Common Stock | |
| Nephros Inc | Arthur H. Amron | Director | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 01 Jan 2025 | 22,418 | 125,881 (1%) | 0% | 0 | Common Stock | |
| Nephros Inc | Arthur H. Amron | Director | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 01 Jan 2025 | 7,050 | 7,050 | - | - | Stock Option (Right to Buy) | |
| Mammoth Energy Services Inc | Arthur H. Amron | Director | Purchase of securities on an exchange or from another person at price $ 2.97 per share. | 12 Dec 2024 | 1,000 | 47,135 (0%) | 0% | 3.0 | 2,971 | Common Stock |
| Mammoth Energy Services Inc | Arthur H. Amron | Director | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 12 Jun 2024 | 27,856 | 46,135 (0%) | 0% | 0 | Common Stock | |
| Nephros Inc | Arthur H. Amron | Director | Purchase of securities on an exchange or from another person at price $ 2.24 per share. | 28 May 2024 | 3,000 | 103,463 (1%) | 0% | 2.2 | 6,735 | Common Stock |
| Mammoth Energy Services Inc | Arthur H. Amron | Director | Purchase of securities on an exchange or from another person at price $ 3.65 per share. | 28 May 2024 | 3,000 | 18,279 (0%) | 0% | 3.6 | 10,944 | Common Stock |
| Nephros Inc | Arthur H. Amron | Director | Purchase of securities on an exchange or from another person at price $ 2.22 per share. | 28 May 2024 | 2,000 | 100,463 (1%) | 0% | 2.2 | 4,441 | Common Stock |
| Mammoth Energy Services Inc | Arthur H. Amron | Director | Purchase of securities on an exchange or from another person at price $ 3.57 per share. | 28 May 2024 | 2,000 | 15,279 (0%) | 0% | 3.6 | 7,148 | Common Stock |
| Nephros Inc | Arthur H. Amron | Director | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 14 May 2024 | 7,323 | 7,323 | - | - | Stock Option (Right to Buy) | |
| Nephros Inc | Arthur H. Amron | Director | Other type of transaction at price $ 0.00 per share. | 12 Mar 2024 | 91,463 | 98,463 (1%) | 1% | 0 | Common stock | |
| Nephros Inc | Arthur H. Amron | Director | Purchase of securities on an exchange or from another person at price $ 2.45 per share. | 12 Mar 2024 | 7,000 | 7,000 (0%) | 0% | 2.4 | 17,130 | Common stock |
| Mammoth Energy Services Inc | Arthur H. Amron | Director | Purchase of securities on an exchange or from another person at price $ 3.72 per share. | 12 Mar 2024 | 3,000 | 13,279 (0%) | 0% | 3.7 | 11,157 | Common Stock |
| Nephros Inc | Amron H. Arthur | Director | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 13 Dec 2023 | 9,291 | 9,291 (0%) | 0% | 0 | Common Stock | |
| Mammoth Energy Services Inc | Arthur H. Amron | Director | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 07 Jun 2023 | 23,810 | 23,810 (0%) | 0% | 0 | Common Stock | |
| Nephros Inc | Arthur H. Amron | Director | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 05 Jan 2023 | 27,613 | 27,613 (0%) | 0% | 0 | Common Stock | |
| Nephros Inc | Arthur H. Amron | Director | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 05 Jan 2023 | 7,080 | 7,080 | - | - | Stock Option (Right to Buy) | |
| Mammoth Energy Services Inc | Arthur H. Amron | Director | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 29 Jun 2022 | 45,662 | 45,662 (0%) | 0% | 0 | Common Stock | |
| Nephros Inc | Arthur H. Amron | Director | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 14 Dec 2021 | 7,062 | 7,062 | - | - | Stock Option (Right to Buy) | |
| Nephros Inc | Arthur H. Amron | Director | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 14 Dec 2021 | 4,582 | 4,582 (0%) | 0% | 0 | Common Stock | |
| Mammoth Energy Services Inc | Arthur H. Amron | Director | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 02 Jun 2021 | 25,641 | 25,641 (0%) | 0% | 0 | Common Stock |