Kristen M Oelschlager sold $139k of CSTL
Chief Operating Officer at CASTLE BIOSCIENCES INC. 4,152 shares at an average of $33.39, traded Sep 1, 2026, filed Sep 3, 2026.
Score components
- +20RoleCOO
- +11Trade size$139k at market
- +5Share of holdings soldSold 24% of holdings
- +15Cluster3 insiders selling within 14 days
- -15Exercise and sellShares came from an option exercise in the same filing
- -2010b5-1 planPre-scheduled under a 10b5-1 plan
What happened after comparable sells
Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.
Price around the trade, and since
From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™
Rows in this filing
Every transaction in Form 4 0001628280-26-060430, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| Sep 1, 2026 | MOption exercise Common Stock10b5-1 | +4,152 | $3.38 | $14k | 17,508 | 40 d ago |
| Sep 1, 2026 | SOpen-market sale Common Stock10b5-1 | -3,952 | $33.36 | $132k | 13,556 | 40 d ago |
| Sep 1, 2026 | SOpen-market sale Common Stock10b5-1 | -200 | $34.02 | $6,804 | 13,356 | 40 d ago |
| Sep 1, 2026 | MOption exercise Stock option (right to buy)derivative10b5-1 | -4,152 | $0.00 | $0 | 12,458 | 40 d ago |
Related signals
Other insiders at CASTLE BIOSCIENCES INC and this insider’s other filings.
| Score | Company | Insider | Value | Holdings | Filed |
|---|---|---|---|---|---|
| 33Weak | CASTLE BIOSCIENCES INC | Derek J Maetzold Pres. & Chief Exec. Officer | $516k 14,496 shares | -49% | |
| 16Weak | CASTLE BIOSCIENCES INC | Kristen M Oelschlager Chief Operating Officer | $149k 4,153 shares | -24% | |
| 28Weak | CASTLE BIOSCIENCES INC | Tobin W Juvenal Chief Commercial Officer | $232k 6,577 shares | -11% | |
| 33Weak | CASTLE BIOSCIENCES INC | Derek J Maetzold Pres. & Chief Exec. Officer | $512k 14,496 shares | -48% | |
| 27Weak | CASTLE BIOSCIENCES INC | Tobin W Juvenal Chief Commercial Officer | $223k 6,600 shares | -10% | |
| 32Weak | CASTLE BIOSCIENCES INC | Derek J Maetzold Pres. & Chief Exec. Officer | $465k 14,518 shares | -48% | |
| 17Weak | CASTLE BIOSCIENCES INC | Tobin W Juvenal Chief Commercial Officer | $57k 1,730 shares | -3% | |
| 45Moderate | CASTLE BIOSCIENCES INC | Derek J Maetzold Pres. & Chief Exec. Officer | $616k 18,560 shares | -55% | |
| 29Weak | CASTLE BIOSCIENCES INC | Tobin W Juvenal Chief Commercial Officer | $317k 9,050 shares | -12% | |
| 68Notable | CASTLE BIOSCIENCES INC | Kristen M Oelschlager Chief Operating Officer | $838k 24,602 shares | -25% |
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.