Juvenal Tobin W (CIK 1856542) reported 22 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-03-16). Recent activity: Sell CSTL (20,863 shares), Sell CSTL (3,716 shares), Buy CSTL (25,771 shares), Sell CSTL (10,399 shares), Buy CSTL (9,207 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-03-16 | CASTLE BIOSCIENCES INC (CSTL) | Chief Commercial Officer | Sell | 20,863 | $526,582 |
| 2026-03-05 | CASTLE BIOSCIENCES INC (CSTL) | Chief Commercial Officer | Sell | 3,716 | $102,450 |
| 2026-03-05 | CASTLE BIOSCIENCES INC (CSTL) | Chief Commercial Officer | Buy | 25,771 | $0 |
| 2026-03-05 | CASTLE BIOSCIENCES INC (CSTL) | Chief Commercial Officer | Sell | 10,399 | $292,940 |
| 2026-01-14 | CASTLE BIOSCIENCES INC (CSTL) | Chief Commercial Officer | Buy | 9,207 | $0 |
| 2025-12-15 | CASTLE BIOSCIENCES INC (CSTL) | Chief Commercial Officer | Sell | 13,200 | $494,736 |
| 2025-12-11 | CASTLE BIOSCIENCES INC (CSTL) | Chief Commercial Officer | Buy | 15,961 | $0 |
| 2025-12-11 | CASTLE BIOSCIENCES INC (CSTL) | Chief Commercial Officer | Sell | 6,441 | $246,368 |
| 2025-12-11 | CASTLE BIOSCIENCES INC (CSTL) | Chief Commercial Officer | Buy | 6,170 | $0 |
| 2025-12-11 | CASTLE BIOSCIENCES INC (CSTL) | Chief Commercial Officer | Sell | 2,490 | $94,670 |
| 2025-11-24 | CASTLE BIOSCIENCES INC (CSTL) | Chief Commercial Officer | Buy | 4,693 | $15,862 |
| 2025-11-24 | CASTLE BIOSCIENCES INC (CSTL) | Chief Commercial Officer | Sell | 4,693 | $166,977 |
| 2025-11-14 | CASTLE BIOSCIENCES INC (CSTL) | Chief Commercial Officer | Buy | 500 | $1,690 |
| 2025-11-14 | CASTLE BIOSCIENCES INC (CSTL) | Chief Commercial Officer | Sell | 500 | $17,695 |
| 2025-11-14 | CASTLE BIOSCIENCES INC (CSTL) | Chief Commercial Officer | Buy | 200 | $676 |
| 2025-11-14 | CASTLE BIOSCIENCES INC (CSTL) | Chief Commercial Officer | Sell | 200 | $7,080 |
| 2025-11-13 | CASTLE BIOSCIENCES INC (CSTL) | Chief Commercial Officer | Sell | 500 | $17,695 |
| 2025-11-13 | CASTLE BIOSCIENCES INC (CSTL) | Chief Commercial Officer | Sell | 200 | $7,080 |
| 2025-08-12 | CASTLE BIOSCIENCES INC (CSTL) | Chief Commercial Officer | Buy | 10,640 | $0 |
| 2025-08-12 | CASTLE BIOSCIENCES INC (CSTL) | Chief Commercial Officer | Sell | 4,294 | $83,132 |
| 2025-03-06 | CASTLE BIOSCIENCES INC (CSTL) | Chief Commercial Officer | Sell | 5,573 | $123,888 |
| 2025-03-06 | CASTLE BIOSCIENCES INC (CSTL) | Chief Commercial Officer | Buy | 13,811 | $0 |
Source: SEC Form 4 filings · as of 2026-03-16