Derek J. Maetzold, President & Chief Executive Officer at CASTLE BIOSCIENCES INC (CSTL), sold 87,134 shares at $26.11 ($2.2M) on 2026-03-11, disclosed to the SEC on 2026-03-13.
Seasonal sale ($2.2M) by President & Chief Executive Officer — this insider has traded CSTL in March in at least three consecutive prior years. Pattern-driven, low signal.
Negative factors outweigh the positive ones.
| # | Price | Shares | Value | % of Total |
|---|---|---|---|---|
| 1 | $26.11 | 279 | $7K | 0.3% |
| 2 | $26.11 | 282 | $7K | 0.3% |
| 3 | $26.11 | 1,160 | $30K | 1.4% |
| 4 | $26.11 | 1,357 | $35K | 1.6% |
| 5 | $26.11 | 17,310 | $452K | 20.2% |
| 6 | $26.11 | 279 |
| $7K |
| 0.3% |
| 7 | $26.11 | 282 | $7K | 0.3% |
| 8 | $26.11 | 17,310 | $452K | 20.2% |
| 9 | $26.11 | 1,357 | $35K | 1.6% |
| 10 | $26.11 | 1,160 | $30K | 1.4% |
| 11 | $25.28 | 23,179 | $586K | 26.2% |
| 12 | $25.28 | 23,179 | $586K | 26.2% |
| Total | $25.67 avg | 87,134 | $2.2M | 100% |
| Filing → |
| CSTL | SELL | 2026-09-01 | $588K | — | Filing → |
| CSTL | SELL | 2026-08-18 | $192K | — | Filing → |
| CSTL | SELL | 2026-08-06 | $1.2M | — | Filing → |