4
Changes in Ownership
CASTLE BIOSCIENCES INC Filed Acc 0001628280-26-017694
Pres. & Chief Exec. Officer sold 44,125 shares at an average $25.67 ($1,132,821)
- Pres. & Chief Exec. Officer acquired 6,226 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 | 2026-03-11 | Option exercise 10b5-1 | +6,226 | $2.39 | $14,880 | 112,047 | D |
| MAETZOLD DEREK J Pres. & Chief Exec. Officer | 2026-03-11 | Sale 10b5-1 | −17,310 | $26.11 | $451,947 | 94,737 | D |
| MAETZOLD DEREK J Pres. & Chief Exec. Officer | 2026-03-11 | Sale 10b5-1 | −1,357 | $26.11 | $35,430 | 51,566 | I |
| MAETZOLD DEREK J Pres. & Chief Exec. Officer | 2026-03-11 | Sale 10b5-1 | −1,160 | $26.11 | $30,286 | 43,826 | I |
| MAETZOLD DEREK J Pres. & Chief Exec. Officer | 2026-03-11 | Sale 10b5-1 | −282 | $26.11 | $7,363 | 3,336 | I |
| MAETZOLD DEREK J Pres. & Chief Exec. Officer | 2026-03-11 | Sale 10b5-1 | −279 | $26.11 | $7,284 | 3,336 | I |
| MAETZOLD DEREK J Pres. & Chief Exec. Officer | 2026-03-11 | Sale 10b5-1 | −279 | $26.11 | $7,284 | 3,336 | I |
| MAETZOLD DEREK J Pres. & Chief Exec. Officer | 2026-03-11 | Sale 10b5-1 | −279 | $26.11 | $7,284 | 3,336 | I |
| MAETZOLD DEREK J Pres. & Chief Exec. Officer | 2026-03-12 | Sale 10b5-1 | −23,179 | $25.28 | $585,942 | 71,558 | D |
| Derivatives | |||||||
| MAETZOLD DEREK J Pres. & Chief Exec. Officer | 2026-03-11 | Option exercise · Stock option (right to buy) 10b5-1 | −6,226 | 14,282 | D | ||
| Open-market sales · 44,125 sh · avg $25.67 · $1,132,821 | |||||||
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