| 2026-01-08 | Tom Penny | Principal Accounting Officer | Sell | 6,533 | $1.29 | $8,427.57 | -100% | → |
| 2025-12-23 | Zedelmayer Christine | Sr. Vice President and COO | Sale+OE | 100,000 | $1.50 | $150,000.00 | -52.2% | → |
| 2025-12-15 | Zedelmayer Christine | Sr. Vice President and COO | Sell | 35,704 | $1.33 | $47,486.36 | -15.5% | → |
| 2025-11-25 | Zedelmayer Christine | Sr. Vice President and COO | Sell | 8,098 | $0.95 | $7,696.10 | -3.0% | → |
| 2025-01-23 | Keyes Jason A | Chief Financial Officer | Sell | 10,000 | $0.65 | $6,500.00 | -21.0% | → |
| 2024-11-14 | Keyes Jason A | Chief Financial Officer | Sell | 10,000 | $0.70 | $7,000.00 | -17.3% | → |
| 2024-10-28 | Zedelmayer Christine | Sr. Vice President and COO | Sell | 15,000 | $1.25 | $18,750.00 | -10.0% | → |
| 2024-10-28 | Tom Penny | Principal Accounting Officer | Sell | 3,518 | $1.25 | $4,397.50 | -18.1% | → |
| 2024-09-26 | Keyes Jason A | Chief Financial Officer | Sell | 10,000 | $0.81 | $8,100.00 | -14.8% | → |
| 2024-09-16 | Tom Penny | Principal Accounting Officer | Sell | 38,806 | $0.85 | $32,985.10 | -79.4% | → |
| 2024-07-16 | Keyes Jason A | Chief Financial Officer | Sell | 10,000 | $0.87 | $8,700.00 | -12.9% | → |
| 2022-08-29 | Keyes Jason A | Chief Financial Officer | Sell | 7,000 | $2.83 | $19,810.00 | -8.3% | → |
| 2022-06-06 | Keyes Jason A | Chief Financial Officer | Sell | 5,000 | $2.52 | $12,600.00 | -5.6% | → |
| 2022-04-04 | Keyes Jason A | Chief Financial Officer | Sell | 8,000 | $3.18 | $25,440.00 | -8.2% | → |
| 2021-12-01 | Keyes Jason A | Chief Financial Officer | Sell | 5,000 | $5.08 | $25,401.50 | -4.9% | → |
| 2021-11-16 | Zedelmayer Christine | Sr. Vice President and COO | Sale+OE | 11,434 | $5.49 | $62,715.49 | -5.5% | → |
| 2021-10-06 | Connelly Stephen | Chief Scientific Officer | Sale+OE | 8,092 | $7.01 | $56,706.06 | -0.4% | → |
| 2021-09-27 | Keyes Jason A | Chief Financial Officer | Sell | 8,000 | $6.74 | $53,924.00 | -7.2% | → |
| 2021-07-27 | Keyes Jason A | Chief Financial Officer | Sell | 5,000 | $5.72 | $28,585.00 | -4.3% | → |
| 2021-06-08 | Connelly Stephen | Chief Scientific Officer | Sale+OE | 46,424 | $7.10 | $329,570.10 | -0.9% | → |
| 2021-05-26 | Keyes Jason A | Chief Financial Officer | Sell | 5,000 | $6.50 | $32,483.50 | -4.1% | → |
| 2020-12-28 | Connelly Stephen | Chief Scientific Officer | Sell | 25,000 | $4.52 | $113,045.00 | -2.5% | → |
| 2020-12-23 | Keyes Jason A | Chief Financial Officer | Sell | 8,000 | $4.74 | $37,913.60 | -6.2% | → |
| 2020-09-28 | Connelly Stephen | Chief Scientific Officer | Sell | 25,000 | $5.62 | $140,395.00 | -2.4% | → |
| 2020-07-13 | Connelly Stephen | Chief Scientific Officer | Sell | 250,000 | $8.13 | $2,033,475.00 | -19.3% | → |
| 2020-02-18 | Keyes Jason A | Chief Financial Officer | Sell | 5,000 | $5.03 | $25,137.50 | -3.7% | → |
| 2020-01-21 | Keyes Jason A | Chief Financial Officer | Sell | 5,000 | $4.41 | $22,043.00 | -3.6% | → |
| 2019-09-03 | Keyes Jason A | Chief Financial Officer | Sell | 5,000 | $3.60 | $17,980.50 | -3.5% | → |
| 2019-08-01 | Keyes Jason A | Chief Financial Officer | Sell | 5,000 | $3.99 | $19,941.00 | -3.4% | → |