Derek J. Maetzold, President & Chief Executive Officer at CASTLE BIOSCIENCES INC (CSTL), sold 14,496 shares at $35.33 ($512K) on 2026-09-21, disclosed to the SEC on 2026-09-23.
Scheduled sale ($512k) by President & Chief Executive Officer under a pre-arranged 10b5-1 plan. Pre-set trade — not a discretionary signal on the stock.
Negative factors outweigh the positive ones.
| # | Price | Shares | Value | % of Total |
|---|---|---|---|---|
| 1 | $35.33 | 2,718 | $96K | 18.8% |
| 2 | $35.33 | 3,198 | $113K | 22.1% |
| 3 | $35.33 | 8,580 | $303K | 59.2% |
| Total | $35.33 avg | 14,496 | $512K | 100% |
| Filing → |
| CSTL | SELL | 2026-08-18 | $192K | — | Filing → |
| CSTL | SELL | 2026-08-06 | $1.2M | — | Filing → |
| CSTL | SELL | 2026-08-04 | $867K | — | Filing → |