| Date | Name | Title | Action | No Shares | Price Per Share |
|---|---|---|---|---|---|
Insider Transactions For QSI | |||||
| 2025-06-23 | Vieceli, John S. | Chief Product Officer | Sold | 21923 | $1.61 |
| 2025-06-23 | Hawkins, Jeffrey Alan | Director, President & CEO | Sold | 23705 | $1.61 |
| 2025-06-23 | Lapointe, Christian | GC & Corp. Secretary | Sold | 11946 | $1.61 |
| 2025-06-23 | Keyes, Jeffry R. | Chief Financial Officer | Sold | 8624 | $1.61 |
| 2025-05-19 | Rothberg, Jonathan M | Director, 10% Owner | Purchased | 126095 | $0.00 |
| 2025-05-19 | Dowdy, Paula | Director | Purchased | 126095 | $0.00 |
| 2025-05-19 | Rakin, Kevin | Director | Purchased | 126095 | $0.00 |
| 2025-05-19 | Mendel, Scott | Director | Purchased | 126095 | $0.00 |
| 2025-05-19 | Fattori, Ruth A | Director | Purchased | 126095 | $0.00 |
| 2025-05-19 | Jafri, Amir | Director | Purchased | 126095 | $0.00 |
| 2025-05-19 | Kenny, John P. | Director | Purchased | 126095 | $0.00 |
| 2025-05-19 | Kummeth, Charles R. | Director | Purchased | 126095 | $0.00 |
| 2025-05-19 | Makes, Brigid | Director | Purchased | 126095 | $0.00 |
| 2025-03-21 | Hawkins, Jeffrey Alan | Director, President & CEO | Sold | 23707 | $1.39 |
| 2025-03-21 | Vieceli, John S. | Chief Product Officer | Sold | 4317 | $1.39 |
| 2025-03-21 | Keyes, Jeffry R. | Chief Financial Officer | Sold | 8626 | $1.39 |
| 2025-03-21 | Lapointe, Christian | General Counsel & Corp. Secr. | Sold | 4896 | $1.39 |
| 2025-03-12 | Vieceli, John S. | Chief Product Officer | Purchased | 708333 | $0.00 |
| 2025-03-12 | Keyes, Jeffry R. | Chief Financial Officer | Purchased | 750000 | $0.00 |
| 2025-03-12 | Bennett, Todd C. | Chief Commercial Officer | Purchased | 208333 | $0.00 |
