| Date | Name | Title | Action | No Shares | Price Per Share |
|---|---|---|---|---|---|
Insider Transactions For CSTL | |||||
| 2025-08-15 | Maetzold, Derek J | Director, Pres. & Chief Exec. Officer | Sold | 1339 | $20.04 |
| 2025-08-13 | Maetzold, Derek J | Director, Pres. & Chief Exec. Officer | Sold | 43019 | $19.50 |
| 2025-08-08 | Juvenal, Tobin W | Chief Commercial Officer | Sold | 4294 | $19.36 |
| 2025-08-08 | Juvenal, Tobin W | Chief Commercial Officer | Sold | 10640 | $0.00 |
| 2025-08-08 | Maetzold, Derek J | Director, Pres. & Chief Exec. Officer | Purchased | 66991 | $0.00 |
| 2025-08-08 | Juvenal, Tobin W | Chief Commercial Officer | Purchased | 10640 | $0.00 |
| 2025-08-08 | Maetzold, Derek J | Director, Pres. & Chief Exec. Officer | Sold | 23972 | $19.36 |
| 2025-08-08 | Maetzold, Derek J | Director, Pres. & Chief Exec. Officer | Sold | 66991 | $0.00 |
| 2025-08-08 | Stokes, Frank | Chief Financial Officer | Purchased | 9744 | $0.00 |
| 2025-08-08 | Stokes, Frank | Chief Financial Officer | Sold | 4356 | $19.36 |
| 2025-08-08 | Stokes, Frank | Chief Financial Officer | Sold | 9744 | $0.00 |
| 2025-08-08 | Oelschlager, Kristen M | Chief Operating Officer | Purchased | 10640 | $0.00 |
| 2025-08-08 | Oelschlager, Kristen M | Chief Operating Officer | Sold | 2804 | $19.36 |
| 2025-08-08 | Oelschlager, Kristen M | Chief Operating Officer | Sold | 10640 | $0.00 |
| 2025-06-27 | Maetzold, Derek J | Director, Pres. & Chief Exec. Officer | Sold | 660 | $20.30 |
| 2025-06-27 | Maetzold, Derek J | Director, Pres. & Chief Exec. Officer | Sold | 6924 | $20.30 |
| 2025-06-27 | Maetzold, Derek J | Director, Pres. & Chief Exec. Officer | Sold | 4944 | $20.30 |
| 2025-06-27 | Maetzold, Derek J | Director, Pres. & Chief Exec. Officer | Sold | 8068 | $20.30 |
| 2025-05-22 | Bradbury, Daniel | Director | Purchased | 13667 | $0.00 |
| 2025-05-22 | Harrison, Miles | Director | Purchased | 13667 | $0.00 |
