Kristen M. Oelschlager, Chief Operating Officer at CASTLE BIOSCIENCES INC (CSTL), sold 24,602 shares at $33.69 ($838K) on 2026-08-24, disclosed to the SEC on 2026-08-26.
Open-market sale of $838k CSTL by Chief Operating Officer. Not flagged as scheduled, tax-driven, or recurring — but no specific bearish signal from our filters. Reasons for insider sales vary widely.
Nothing distinguishes this filing.
| # | Price | Shares | Value | % of Total |
|---|---|---|---|---|
| 1 | $33.69 | 12,218 | $412K | 49.1% |
| 2 | $34.26 | 7,161 | $245K | 29.3% |
| 3 | $34.64 | 5,223 | $181K | 21.6% |
| Total | $34.06 avg | 24,602 | $838K | 100% |
| Filing → |
| CSTL | SELL | 2026-08-05 | $256K | — | Filing → |
| CSTL | SELL | 2026-07-06 | $210K | — | Filing → |
| CSTL | SELL | 2026-06-18 | $178K | — | Filing → |