| 2024-05-14 | SMITH EDWARD J | Director | Buy | 25,000 | $0.39 | $9,750.00 | +8.1% | → |
| 2024-05-14 | McMurtry David | Chief Business Officer | Buy | 25,000 | $0.39 | $9,750.00 | +3.5% | → |
| 2024-05-14 | YI SUNG | Director | Buy | 75,000 | $0.39 | $29,250.00 | +245.9% | → |
| 2024-05-14 | Merrill Judd | Chief Financial Officer | Buy | 37,500 | $0.39 | $14,625.00 | +1.8% | → |
| 2024-05-14 | DIVITO VINCENT L | Director | Buy | 62,500 | $0.39 | $24,375.00 | +17.4% | → |
| 2024-05-14 | Zhang Peifang | Director | Buy | 62,500 | $0.39 | $24,375.00 | +24.9% | → |
| 2024-05-14 | Taecker Benjamin S. | Chief Eng and Opr Officer | Buy | 25,000 | $0.39 | $9,750.00 | +2.3% | → |
| 2024-05-14 | Cotton Stephen | Chief Executive Officer | Buy | 250,000 | $0.39 | $97,500.00 | +4.1% | → |
| 2023-11-17 | DIVITO VINCENT L | Director | Buy | 5,000 | $0.89 | $4,450.00 | +1.5% | → |
| 2023-07-19 | SMITH EDWARD J | Director | Buy | 90,500 | $1.10 | $99,550.00 | +41.4% | → |
| 2023-07-19 | DIVITO VINCENT L | Director | Buy | 9,000 | $1.10 | $9,900.00 | +2.8% | → |
| 2023-07-19 | Zhang Peifang | Director | Buy | 72,900 | $1.10 | $80,190.00 | +40.9% | → |
| 2022-12-29 | Zhang Peifang | Director | Buy | 10,000 | $0.99 | $9,900.00 | +8.1% | → |
| 2022-12-28 | Kanen David | Director | Buy | 34,180 | $0.75 | $25,635.00 | +7.9% | → |
| 2022-12-27 | Kanen David | Director | Buy | 150,995 | $0.73 | $110,226.35 | +53.3% | → |
| 2022-12-23 | Zhang Peifang | Director | Buy | 50,000 | $0.70 | $35,000.00 | +68.4% | → |
| 2022-12-23 | Kanen David | Director | Buy | 283,250 | $0.71 | $201,107.50 | New | → |
| 2022-12-23 | DIVITO VINCENT L | Director | Buy | 10,000 | $0.69 | $6,900.00 | +4.0% | → |
| 2022-12-14 | SMITH EDWARD J | Director | Buy | 100,000 | $0.64 | $64,000.00 | +136.8% | → |
| 2022-07-08 | Taecker Benjamin S. | Chief Eng and Opr Officer | Sell | 49,556 | $0.77 | $38,158.12 | -12.0% | → |
| 2022-07-08 | Cotton Stephen | Chief Executive Officer | Sell | 283,758 | $0.77 | $218,493.66 | -7.0% | → |
| 2022-03-24 | Cotton Stephen | Chief Executive Officer | Sell | 100,605 | $1.41 | $141,853.05 | -2.4% | → |
| 2022-03-24 | Taecker Benjamin S. | Chief Eng and Opr Officer | Sell | 13,431 | $1.41 | $18,937.71 | -3.1% | → |
| 2022-01-05 | Cotton Stephen | Chief Executive Officer | Sell | 124,474 | $1.27 | $158,081.98 | -2.9% | → |
| 2022-01-05 | Taecker Benjamin S. | Chief Eng and Opr Officer | Sell | 35,676 | $1.27 | $45,308.52 | -7.7% | → |
| 2021-07-02 | Cotton Stephen | Chief Executive Officer | Sell | 193,173 | $2.71 | $523,498.83 | -11.5% | → |
| 2021-07-02 | Merrill Judd | Chief Financial Officer | Sell | 85,311 | $2.71 | $231,192.81 | -15.0% | → |
| 2021-03-24 | Cotton Stephen | Chief Executive Officer | Sell | 87,660 | $3.88 | $340,120.80 | -6.7% | → |
| 2021-03-24 | Merrill Judd | Chief Financial Officer | Sell | 17,393 | $3.88 | $67,484.84 | -4.1% | → |
| 2021-03-02 | Yosufzai S. Shariq | Director | Sale+OE | 188,603 | $4.80 | $905,294.40 | -42.2% | → |
| 2021-03-02 | Cotton Stephen | Chief Executive Officer | Sale+OE | 232,461 | $5.05 | $1,172,804.22 | -9.6% | → |
| 2021-03-02 | Merrill Judd | Chief Financial Officer | Sale+OE | 56,698 | $5.15 | $291,994.70 | -6.9% | → |
| 2021-01-04 | Cotton Stephen | Chief Executive Officer | Sell | 69,874 | $3.36 | $234,776.64 | -6.0% | → |
| 2021-01-04 | Merrill Judd | Chief Financial Officer | Sell | 41,773 | $3.36 | $140,357.28 | -9.9% | → |
| 2020-08-07 | Cotton Stephen | Chief Executive Officer | Buy | 721 | $1.04 | $749.84 | - | → |
| 2020-08-07 | Merrill Judd | Chief Financial Officer | Buy | 481 | $1.04 | $500.24 | +0.2% | → |
| 2020-07-24 | Cotton Stephen | Chief Executive Officer | Buy | 670 | $1.12 | $750.40 | - | → |
| 2020-07-24 | Merrill Judd | Chief Financial Officer | Buy | 446 | $1.12 | $499.52 | +0.1% | → |
| 2020-07-10 | Cotton Stephen | Chief Executive Officer | Buy | 676 | $1.11 | $750.36 | - | → |
| 2020-07-10 | Merrill Judd | Chief Financial Officer | Buy | 450 | $1.11 | $499.50 | +0.1% | → |
| 2020-07-02 | Cotton Stephen | Chief Executive Officer | Sell | 169,606 | $1.15 | $195,046.90 | -16.5% | → |
| 2020-07-02 | Merrill Judd | Chief Financial Officer | Sell | 61,445 | $1.15 | $70,661.75 | -16.4% | → |
| 2020-06-26 | Merrill Judd | Chief Financial Officer | Buy | 455 | $1.10 | $500.50 | +0.2% | → |
| 2020-06-26 | Cotton Stephen | Chief Executive Officer | Buy | 682 | $1.10 | $750.20 | - | → |