4
Changes in Ownership
CASTLE BIOSCIENCES INC Filed Acc 0001628280-26-037724
Pres. & Chief Exec. Officer sold 4,172 shares at an average $20.15 ($84,066)
- Pres. & Chief Exec. Officer acquired 550 shares (option exercise)
- Traded under a Rule 10b5-1 plan
From the SEC's structured data for this filing
Trades in this filing
| Insider | Date | Transaction | Shares | Price | Value | Owned after | D/I |
|---|---|---|---|---|---|---|---|
| MAETZOLD DEREK J Pres. & Chief Exec. Officer | 2026-05-20 | Option exercise 10b5-1 | +130 | $2.39 | $311 | 21,609 | D |
| MAETZOLD DEREK J Pres. & Chief Exec. Officer | 2026-05-20 | Sale 10b5-1 | −130 | $20.00 | $2,600 | 21,479 | D |
| MAETZOLD DEREK J Pres. & Chief Exec. Officer | 2026-05-20 | Sale 10b5-1 | −322 | $20.00 | $6,441 | 45,816 | I |
| MAETZOLD DEREK J Pres. & Chief Exec. Officer | 2026-05-20 | Sale 10b5-1 | −273 | $20.00 | $5,461 | 38,941 | I |
| MAETZOLD DEREK J Pres. & Chief Exec. Officer | 2026-05-20 | Sale 10b5-1 | −66 | $20.00 | $1,320 | 2,158 | I |
| MAETZOLD DEREK J Pres. & Chief Exec. Officer | 2026-05-20 | Sale 10b5-1 | −66 | $20.00 | $1,320 | 2,158 | I |
| MAETZOLD DEREK J Pres. & Chief Exec. Officer | 2026-05-20 | Sale 10b5-1 | −66 | $20.00 | $1,320 | 2,158 | I |
| MAETZOLD DEREK J Pres. & Chief Exec. Officer | 2026-05-20 | Sale 10b5-1 | −66 | $20.00 | $1,320 | 2,158 | I |
| MAETZOLD DEREK J Pres. & Chief Exec. Officer | 2026-05-21 | Option exercise 10b5-1 | +420 | $2.39 | $1,004 | 21,899 | D |
| MAETZOLD DEREK J Pres. & Chief Exec. Officer | 2026-05-21 | Sale 10b5-1 | −420 | $20.20 | $8,482 | 21,479 | D |
| MAETZOLD DEREK J Pres. & Chief Exec. Officer | 2026-05-21 | Sale 10b5-1 | −1,035 | $20.20 | $20,903 | 44,781 | I |
| MAETZOLD DEREK J Pres. & Chief Exec. Officer | 2026-05-21 | Sale 10b5-1 | −880 | $20.20 | $17,772 | 38,061 | I |
| MAETZOLD DEREK J Pres. & Chief Exec. Officer | 2026-05-21 | Sale 10b5-1 | −212 | $20.20 | $4,282 | 1,946 | I |
| MAETZOLD DEREK J Pres. & Chief Exec. Officer | 2026-05-21 | Sale 10b5-1 | −212 | $20.20 | $4,282 | 1,946 | I |
| MAETZOLD DEREK J Pres. & Chief Exec. Officer | 2026-05-21 | Sale 10b5-1 | −212 | $20.20 | $4,282 | 1,946 | I |
| MAETZOLD DEREK J Pres. & Chief Exec. Officer | 2026-05-21 | Sale 10b5-1 | −212 | $20.20 | $4,282 | 1,946 | I |
| Derivatives | |||||||
| MAETZOLD DEREK J Pres. & Chief Exec. Officer | 2026-05-20 | Option exercise · Stock option (right to buy) 10b5-1 | −130 | 624 | D | ||
| MAETZOLD DEREK J Pres. & Chief Exec. Officer | 2026-05-21 | Option exercise · Stock option (right to buy) 10b5-1 | −420 | 204 | D | ||
| Open-market sales · 4,172 sh · avg $20.15 · $84,066 | |||||||
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