4
Changes in Ownership
CASTLE BIOSCIENCES INC Filed Acc 0001628280-26-026851
Pres. & Chief Exec. Officer sold 4,172 shares at $25.10 ($104,709)
- 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 | 2026-04-21 | Option exercise 10b5-1 | +550 | $2.39 | $1,315 | 22,029 | D |
| MAETZOLD DEREK J Pres. & Chief Exec. Officer | 2026-04-21 | Sale 10b5-1 | −550 | $25.10 | $13,804 | 21,479 | D |
| MAETZOLD DEREK J Pres. & Chief Exec. Officer | 2026-04-21 | Sale 10b5-1 | −1,357 | $25.10 | $34,058 | 47,495 | I |
| MAETZOLD DEREK J Pres. & Chief Exec. Officer | 2026-04-21 | Sale 10b5-1 | −1,153 | $25.10 | $28,938 | 40,367 | I |
| MAETZOLD DEREK J Pres. & Chief Exec. Officer | 2026-04-21 | Sale 10b5-1 | −278 | $25.10 | $6,977 | 2,502 | I |
| MAETZOLD DEREK J Pres. & Chief Exec. Officer | 2026-04-21 | Sale 10b5-1 | −278 | $25.10 | $6,977 | 2,502 | I |
| MAETZOLD DEREK J Pres. & Chief Exec. Officer | 2026-04-21 | Sale 10b5-1 | −278 | $25.10 | $6,977 | 2,502 | I |
| MAETZOLD DEREK J Pres. & Chief Exec. Officer | 2026-04-21 | Sale 10b5-1 | −278 | $25.10 | $6,977 | 2,502 | I |
| Derivatives | |||||||
| MAETZOLD DEREK J Pres. & Chief Exec. Officer | 2026-04-21 | Option exercise · Stock option (right to buy) 10b5-1 | −550 | 6,968 | D | ||
| Open-market sales · 4,172 sh · avg $25.10 · $104,709 | |||||||
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