| Insider | Symbol | Price | Amount | Total Value | Remaining Holdings | Date | Form 4 |
| Officer, Director | CSTL | $20.20 | 212 | $4,281.55 | 1,946 | 2026-05-21 | Filing |
| Officer, Director | CSTL | $20.20 | 212 | $4,281.55 | 1,946 | 2026-05-21 | Filing |
| Officer, Director | CSTL | $20.20 | 212 | $4,281.55 | 1,946 | 2026-05-21 | Filing |
| Officer, Director | CSTL | $20.20 | 212 | $4,281.55 | 1,946 | 2026-05-21 | Filing |
| Officer, Director | CSTL | $20.20 | 880 | $17,772.48 | 38,061 | 2026-05-21 | Filing |
| Officer, Director | CSTL | $20.20 | 1,035 | $20,902.86 | 44,781 | 2026-05-21 | Filing |
| Officer, Director | CSTL | $20.20 | 420 | $8,482.32 | 21,479 | 2026-05-21 | Filing |
| Officer, Director | CSTL | $20.00 | 66 | $1,320.13 | 2,158 | 2026-05-20 | Filing |
| Officer, Director | CSTL | $20.00 | 66 | $1,320.13 | 2,158 | 2026-05-20 | Filing |
| Officer, Director | CSTL | $20.00 | 66 | $1,320.13 | 2,158 | 2026-05-20 | Filing |
| Officer, Director | CSTL | $20.00 | 66 | $1,320.13 | 2,158 | 2026-05-20 | Filing |
| Officer, Director | CSTL | $20.00 | 273 | $5,460.55 | 38,941 | 2026-05-20 | Filing |
| Officer, Director | CSTL | $20.00 | 322 | $6,440.64 | 45,816 | 2026-05-20 | Filing |
| Officer, Director | CSTL | $20.00 | 130 | $2,600.26 | 21,479 | 2026-05-20 | Filing |
| Officer | ARDX | $6.27 | 2,405 | $15,073.34 | 417,972 | 2026-05-21 | Filing |
| Officer | ARDX | $6.27 | 2,427 | $15,211.22 | 420,377 | 2026-05-21 | Filing |
| Officer | ARDX | $6.27 | 3,166 | $19,842.91 | 422,804 | 2026-05-21 | Filing |
| Officer, Director | KWY | $10.14 | 5,000 | $50,675.00 | 29,100 | 2026-05-21 | Filing |
| Officer | ARDX | $6.27 | 2,478 | $15,530.87 | 357,418 | 2026-05-21 | Filing |
| Officer | ARDX | $6.27 | 1,870 | $11,720.23 | 359,896 | 2026-05-21 | Filing |