4
Changes in Ownership
CASTLE BIOSCIENCES INC Filed Acc 0001628280-26-052647
Pres. & Chief Exec. Officer sold 28,646 shares at an average $30.28 ($867,451)
- Pres. & Chief Exec. Officer acquired 17,144 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 | 2026-07-31 | Option exercise 10b5-1 | +6,480 | $2.39 | $15,487 | 27,959 | D |
| MAETZOLD DEREK J Pres. & Chief Exec. Officer | 2026-07-31 | Sale 10b5-1 | −6,480 | $30.15 | $195,385 | 21,479 | D |
| MAETZOLD DEREK J Pres. & Chief Exec. Officer | 2026-07-31 | Sale 10b5-1 | −1,983 | $30.15 | $59,791 | 36,013 | I |
| MAETZOLD DEREK J Pres. & Chief Exec. Officer | 2026-07-31 | Sale 10b5-1 | −1,690 | $30.15 | $50,957 | 30,606 | I |
| MAETZOLD DEREK J Pres. & Chief Exec. Officer | 2026-08-03 | Option exercise 10b5-1 | +10,664 | $2.39 | $25,487 | 32,143 | D |
| MAETZOLD DEREK J Pres. & Chief Exec. Officer | 2026-08-03 | Sale 10b5-1 | −10,664 | $30.35 | $323,684 | 21,479 | D |
| MAETZOLD DEREK J Pres. & Chief Exec. Officer | 2026-08-03 | Sale 10b5-1 | −4,232 | $30.35 | $128,454 | 31,781 | I |
| MAETZOLD DEREK J Pres. & Chief Exec. Officer | 2026-08-03 | Sale 10b5-1 | −3,597 | $30.35 | $109,180 | 27,009 | I |
| Derivatives | |||||||
| MAETZOLD DEREK J Pres. & Chief Exec. Officer | 2026-07-31 | Option exercise · Stock option (right to buy) 10b5-1 | −6,480 | 72,423 | D | ||
| MAETZOLD DEREK J Pres. & Chief Exec. Officer | 2026-08-03 | Option exercise · Stock option (right to buy) 10b5-1 | −10,664 | 61,759 | D | ||
| Open-market sales · 28,646 sh · avg $30.28 · $867,451 | |||||||
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