4
Changes in Ownership
CASTLE BIOSCIENCES INC Filed Acc 0001628280-26-054334
Pres. & Chief Exec. Officer sold 39,016 shares at an average $31.07 ($1,212,230)
- Pres. & Chief Exec. Officer acquired 22,902 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 | 2026-08-04 | Option exercise 10b5-1 | +20,356 | $2.39 | $48,651 | 41,835 | D |
| MAETZOLD DEREK J Pres. & Chief Exec. Officer | 2026-08-04 | Sale 10b5-1 | −8,421 | $30.79 | $259,266 | 33,414 | D |
| MAETZOLD DEREK J Pres. & Chief Exec. Officer | 2026-08-04 | Sale 10b5-1 | −3,374 | $30.79 | $103,879 | 28,407 | I |
| MAETZOLD DEREK J Pres. & Chief Exec. Officer | 2026-08-04 | Sale 10b5-1 | −2,866 | $30.79 | $88,238 | 24,143 | I |
| MAETZOLD DEREK J Pres. & Chief Exec. Officer | 2026-08-04 | Sale 10b5-1 | −11,935 | $31.34 | $373,995 | 21,479 | D |
| MAETZOLD DEREK J Pres. & Chief Exec. Officer | 2026-08-04 | Sale 10b5-1 | −4,782 | $31.34 | $149,849 | 23,625 | I |
| MAETZOLD DEREK J Pres. & Chief Exec. Officer | 2026-08-04 | Sale 10b5-1 | −4,063 | $31.34 | $127,318 | 20,080 | I |
| MAETZOLD DEREK J Pres. & Chief Exec. Officer | 2026-08-05 | Option exercise 10b5-1 | +2,546 | $2.39 | $6,085 | 24,025 | D |
| MAETZOLD DEREK J Pres. & Chief Exec. Officer | 2026-08-05 | Sale 10b5-1 | −2,546 | $30.68 | $78,114 | 21,479 | D |
| MAETZOLD DEREK J Pres. & Chief Exec. Officer | 2026-08-05 | Sale 10b5-1 | −556 | $30.68 | $17,059 | 23,069 | I |
| MAETZOLD DEREK J Pres. & Chief Exec. Officer | 2026-08-05 | Sale 10b5-1 | −473 | $30.68 | $14,512 | 19,607 | I |
| Derivatives | |||||||
| MAETZOLD DEREK J Pres. & Chief Exec. Officer | 2026-08-04 | Option exercise · Stock option (right to buy) 10b5-1 | −20,356 | 41,403 | D | ||
| MAETZOLD DEREK J Pres. & Chief Exec. Officer | 2026-08-05 | Option exercise · Stock option (right to buy) 10b5-1 | −2,546 | 38,857 | D | ||
| Open-market sales · 39,016 sh · avg $31.07 · $1,212,230 | |||||||
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