Form 4 filed by MAETZOLD DEREK J
MAETZOLD DEREK J filed this Form 4 on CSTL (CASTLE BIOSCIENCES INC) with 5 transaction rows and 8 holding rows, accepted by EDGAR 2026-10-07 20:10:45 UTC.
- Accession
- 0001628280-26-065327
- Filer
- CIK 1239501
- Filed
- 2026-10-07
- Accepted by EDGAR
- Ingested
- Source
- EDGAR live feed
Issuer and reporting owners
Issuer: CSTL · CASTLE BIOSCIENCES INC (CIK 1447362)
- MAETZOLD DEREK J director, officer (Pres. & Chief Exec. Officer)
Rows
| Security | Date | Code | Shares | Price | Owned after | Ownership |
|---|---|---|---|---|---|---|
| Common Stock | 2026-10-05 | M exercised | +8,165 | $2.39 | 29,644 | D |
| Common Stock | 2026-10-05 | S sold | -8,580 | $35.566 | 21,064 | D |
| Common Stock | 2026-10-05 | S sold | -3,198 | $35.566 | 8,038 | I By The Maetzold Descendants 2020 Trust |
| Common Stock | 2026-10-05 | S sold | -2,718 | $35.566 | 6,832 | I By Derek Maetzold 2020 Irrevocable Trust |
| Common Stock holding | 11,256 | I By The Maetzold 2018 Remainder Trust FBO Emily Carol Kirk | ||||
| Common Stock holding | 11,256 | I By The Maetzold 2018 Remainder Trust FBO Hannah Elizabeth Maetzold | ||||
| Common Stock holding | 11,256 | I By The Maetzold 2018 Remainder Trust FBO John Derek Maetzold | ||||
| Common Stock holding | 11,256 | I By The Maetzold 2018 Remainder Trust FBO Peter Douglas Maetzold | ||||
| Common Stock holding | 11,963 | I By DJM Grantor Retained Annuity Trust No. 6 | ||||
| Common Stock holding | 27,862 | I By DJM Grantor Retained Annuity Trust No. 7 | ||||
| Common Stock holding | 40,935 | I By DJM Grantor Retained Annuity Trust No. 8 | ||||
| Common Stock holding | 23,216 | I DJM Grantor Retained Annuity Trust No. 9 | ||||
| Stock option (right to buy) derivative | 2026-10-05 | M exercised | -8,165 | $0 | 0 | D |