| Filing Date | Insider | Type | 10b5-1 | Net Shares | Ownership change | Avg. Price | Value | Filing |
|---|---|---|---|---|---|---|---|---|
| 2026-06-09 | Edell Michael Chief Executive Officer | Purchase | +1,000 | +33.33%4,000 | $1.55 | $1,550 | View SEC filing | |
| 2026-06-08 | GLENBROOK CAPITAL MANAGEMENT 10% Owner | Purchase | +28,389 | +1.53%1,888,129 | $1.60 | $45,536 | View SEC filing | |
| 2026-05-18 | Edell Michael Chief Executive Officer | Purchase | +3,000 | +100.00%3,000 | $1.67 | $5,013 | View SEC filing | |
| 2026-05-18 | GLENBROOK CAPITAL MANAGEMENT 10% Owner | Purchase | +32,120 | +1.78%1,834,390 | $1.67 | $53,486 | View SEC filing | |
| 2026-04-30 | GLENBROOK CAPITAL MANAGEMENT 10% Owner | Purchase | +3,000 | +0.34%893,635 | $1.47 | $4,407 | View SEC filing | |
| 2026-03-17 | GLENBROOK CAPITAL MANAGEMENT 10% Owner | Purchase | +171,034 | +10.79%1,756,485 | $1.93 | $330,182 | View SEC filing | |
| 2026-02-19 | GLENBROOK CAPITAL MANAGEMENT 10% Owner | Purchase | +85,901 | +6.72%1,363,328 | $2.34 | $200,635 | View SEC filing | |
| 2026-02-13 | GLENBROOK CAPITAL MANAGEMENT 10% Owner | Purchase | +31,346 | +2.58%1,244,054 | $1.81 | $56,667 | View SEC filing | |
| 2026-02-06 | GLENBROOK CAPITAL MANAGEMENT 10% Owner | Purchase | +8,569 | +0.72%1,201,824 | $1.81 | $15,480 | View SEC filing | |
| 2026-02-03 | GLENBROOK CAPITAL MANAGEMENT 10% Owner | Purchase | +48,138 | +4.39%1,144,831 | $1.96 | $94,524 | View SEC filing | |
| 2025-11-19 | Leach Jacob Steven Director | Sale | -62 | -100.00%0 | $2.71 | $168 | View SEC filing | |
| 2025-11-17 | Szot Matthew K Director | Sale | -1 | -100.00%0 | $2.75 | $3 | View SEC filing | |
| 2021-08-18 | Leach Jacob Steven Director | Purchase | +150,000 | +100.00%150,000 | $1.53 | $228,765 | View SEC filing | |
| 2019-10-22 | Mayer Loretta Powers Chief Scientific Officer | Sale | -6,000 | -1.76%335,165 | $0.83 | $4,980 | View SEC filing | |
| 2019-10-04 | Dyer Cheryl Ann Pres. & Chief Research Officer | Sale | -6,000 | -1.60%370,091 | $0.93 | $5,575 | View SEC filing | |
| 2019-08-16 | Dyer Cheryl Ann Pres. & Chief Research Officer | Sale | -40,000 | -9.61%376,091 | $1.19 | $47,722 | View SEC filing | |
| 2019-08-16 | Mayer Loretta Powers Chief Scientific Officer | Sale | -40,000 | -9.73%371,165 | $1.21 | $48,490 | View SEC filing | |
| 2019-07-18 | SIEGEL KENNETH S CEO | Purchase | +696,296 | +11119.39%702,558 | $1.35 | $940,000 | View SEC filing | |
| 2018-08-15 | Williams Julia Ann Director | Purchase | +11,000 | +7.38%160,087 | $1.15 | $12,650 | View SEC filing | |
| 2018-06-25 | Mayer Loretta Powers CEO & Chief Scientific Officer | Sale | -6,000 | -1.46%405,971 | $2.13 | $12,780 | View SEC filing | |
| 2017-12-26 | Mayer Loretta Powers CEO & Chief Scientific Officer | Sale | -6,000 | -1.53%386,977 | $0.67 | $4,026 | View SEC filing | |
| 2017-12-05 | Dyer Cheryl Ann Pres. & Chief Research Officer | Sale | -6,000 | -1.53%387,201 | $0.82 | $4,921 | View SEC filing | |
| 2017-11-28 | Williams Julia Ann Director | Purchase | +1,700 | +7.71%23,750 | $0.90 | $1,525 | View SEC filing | |
| 2017-11-22 | Mayer Loretta Powers CEO & Chief Scientific Officer | Sale | -6,000 | -1.49%397,977 | $0.89 | $5,363 | View SEC filing | |
| 2017-11-03 | Dyer Cheryl Ann Pres. & Chief Research Officer | Sale | -6,000 | -1.50%393,201 | $2.72 | $16,339 | View SEC filing |
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