CSTL CASTLE BIOSCIENCES INC
Nasdaq · SEC CIK 1447362 · EDGAR
- Bought, last 12 months
- $0 0 purchases by 0 insiders
- Sold, last 12 months
- $18.04M 75 sales by 5 insiders
- Filings on record
- 362 since 2021-07-09, latest 2026-09-23 16:27
BoughtSold
Most active insiders, 12 months
| Insider | Title | Bought | Sold |
|---|---|---|---|
| MAETZOLD DEREK J | Pres, Chief Exec. Off, Dir | — | $10.69M |
| Oelschlager Kristen M | COO | — | $3.19M |
| Juvenal Tobin W | Chief Commercial Off | — | $2.49M |
| Stokes Frank | CFO | — | $1.46M |
| Cole G Bradley | Dir | — | $210.7K |
| Cotton Rodney | Dir | — | — |
| Caple Kim | Dir | — | — |
| Goldberg Ellen | Dir | — | — |
| Harrison Miles | Dir | — | — |
| Olson Tiffany | Dir | — | — |
Transactions 486
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| DT | 2026-09-23 16:27 | 2026-09-21 | CSTL | MAETZOLD DEREK J | Pres, Chief Exec. Off, Dir | M - OptEx | $2.39 | +8,580 | 30.1K | +40% | +$20.5K |
| DT | 2026-09-23 16:27 | 2026-09-21 | CSTL | MAETZOLD DEREK J | Pres, Chief Exec. Off, Dir | S - Sale+OE | $35.33 | -8,580 | 21.5K | -29% | -$303.2K |
| DMTI | 2026-09-23 16:27 | 2026-09-21 | CSTL | MAETZOLD DEREK J | Pres, Chief Exec. Off, Dir | S - Sale+OE | $35.33 | -5,916 | 9,550 | -38% | -$209.0K |
| MT | 2026-09-16 16:20 | 2026-09-14+ | CSTL | Juvenal Tobin W | Chief Commercial Off | S - Sale | $33.73 | -6,600 | 58.6K | -10% | -$222.6K |
| DT | 2026-09-15 16:08 | 2026-09-11 | CSTL | MAETZOLD DEREK J | Pres, Chief Exec. Off, Dir | M - OptEx | $2.39 | +8,584 | 30.1K | +40% | +$20.5K |
| DMT | 2026-09-15 16:08 | 2026-09-11 | CSTL | MAETZOLD DEREK J | Pres, Chief Exec. Off, Dir | S - Sale+OE | $32.02 | -8,584 | 21.5K | -29% | -$274.9K |
| DMTI | 2026-09-15 16:08 | 2026-09-11 | CSTL | MAETZOLD DEREK J | Pres, Chief Exec. Off, Dir | S - Sale+OE | $32.02 | -5,934 | 12.3K | -33% | -$190.0K |
| DT | 2026-09-03 16:07 | 2026-09-01 | CSTL | Oelschlager Kristen M | COO | M - OptEx | $3.38 | +4,152 | 17.5K | +31% | +$14.0K |
| DMT | 2026-09-03 16:07 | 2026-09-01 | CSTL | Oelschlager Kristen M | COO | S - Sale+OE | $33.39 | -4,152 | 13.4K | -24% | -$138.6K |
| T | 2026-09-02 16:07 | 2026-08-31 | CSTL | Juvenal Tobin W | Chief Commercial Off | S - Sale | $32.81 | -1,730 | 65.2K | -3% | -$56.8K |
| DT | 2026-09-01 16:12 | 2026-08-28 | CSTL | MAETZOLD DEREK J | Pres, Chief Exec. Off, Dir | M - OptEx | $2.39 | +12.4K | 33.9K | +58% | +$29.7K |
| DMT | 2026-09-01 16:12 | 2026-08-28 | CSTL | MAETZOLD DEREK J | Pres, Chief Exec. Off, Dir | S - Sale+OE | $33.20 | -12.4K | 21.5K | -37% | -$412.6K |
| DMTI | 2026-09-01 16:12 | 2026-08-28 | CSTL | MAETZOLD DEREK J | Pres, Chief Exec. Off, Dir | S - Sale+OE | $33.20 | -6,132 | 11.3K | -35% | -$203.6K |
| T | 2026-08-27 16:38 | 2026-08-25 | CSTL | Juvenal Tobin W | Chief Commercial Off | S - Sale | $35.04 | -9,050 | 66.9K | -12% | -$317.1K |
| MI | 2026-08-26 16:16 | 2026-08-24+ | CSTL | Oelschlager Kristen M | COO | S - Sale | $34.06 | -24.6K | 72.6K | -25% | -$837.9K |
| T | 2026-08-19 16:11 | 2026-08-17 | CSTL | Juvenal Tobin W | Chief Commercial Off | S - Sale | $29.59 | -1,730 | 76.0K | -2% | -$51.2K |
| 2026-08-18 16:10 | 2026-08-14 | CSTL | Stokes Frank | CFO | S - Sale | $29.77 | -24.9K | 35.2K | -41% | -$741.5K | |
| DT | 2026-08-18 16:09 | 2026-08-14 | CSTL | MAETZOLD DEREK J | Pres, Chief Exec. Off, Dir | M - OptEx | $2.39 | +1,100 | 22.6K | +5% | +$2,629 |
| DT | 2026-08-18 16:09 | 2026-08-14 | CSTL | MAETZOLD DEREK J | Pres, Chief Exec. Off, Dir | S - Sale+OE | $30.02 | -1,100 | 21.5K | -5% | -$33.0K |
| DMTI | 2026-08-18 16:09 | 2026-08-14 | CSTL | MAETZOLD DEREK J | Pres, Chief Exec. Off, Dir | S - Sale+OE | $30.02 | -6,132 | 11.5K | -35% | -$184.1K |
| T | 2026-08-06 16:14 | 2025-11-24 | CSTL | Juvenal Tobin W | Chief Commercial Off | S - Sale | $38.39 | -1,301 | 77.7K | -2% | -$49.9K |
| DMT | 2026-08-06 16:14 | 2026-08-04+ | CSTL | MAETZOLD DEREK J | Pres, Chief Exec. Off, Dir | M - OptEx | $2.39 | +22.9K | 24.0K | +2,039% | +$54.7K |
| DMT | 2026-08-06 16:14 | 2026-08-04+ | CSTL | MAETZOLD DEREK J | Pres, Chief Exec. Off, Dir | S - Sale+OE | $31.06 | -22.9K | 21.5K | -52% | -$711.4K |
| DMTI | 2026-08-06 16:14 | 2026-08-04+ | CSTL | MAETZOLD DEREK J | Pres, Chief Exec. Off, Dir | S - Sale+OE | $31.08 | -16.1K | 19.6K | -45% | -$500.9K |
| MT | 2026-08-05 16:18 | 2026-08-03 | CSTL | Oelschlager Kristen M | COO | S - Sale | $29.77 | -8,586 | 13.3K | -39% | -$255.6K |
| MT | 2026-08-04 16:36 | 2026-07-31+ | CSTL | Juvenal Tobin W | Chief Commercial Off | S - Sale | $29.21 | -19.0K | 79.0K | -19% | -$556.2K |
| DMT | 2026-08-04 16:35 | 2026-07-31+ | CSTL | MAETZOLD DEREK J | Pres, Chief Exec. Off, Dir | M - OptEx | $2.39 | +17.1K | 32.1K | +114% | +$41.0K |
| DMT | 2026-08-04 16:35 | 2026-07-31+ | CSTL | MAETZOLD DEREK J | Pres, Chief Exec. Off, Dir | S - Sale+OE | $30.28 | -17.1K | 21.5K | -44% | -$519.1K |
| DMTI | 2026-08-04 16:35 | 2026-07-31+ | CSTL | MAETZOLD DEREK J | Pres, Chief Exec. Off, Dir | S - Sale+OE | $30.29 | -11.5K | 27.0K | -30% | -$348.4K |
| DT | 2026-07-29 16:09 | 2026-07-27 | CSTL | MAETZOLD DEREK J | Pres, Chief Exec. Off, Dir | M - OptEx | $2.39 | +6,214 | 27.7K | +29% | +$14.9K |
| DMT | 2026-07-29 16:09 | 2026-07-27 | CSTL | MAETZOLD DEREK J | Pres, Chief Exec. Off, Dir | S - Sale+OE | $24.16 | -6,214 | 21.5K | -22% | -$150.2K |
| DMTI | 2026-07-29 16:09 | 2026-07-27 | CSTL | MAETZOLD DEREK J | Pres, Chief Exec. Off, Dir | S - Sale+OE | $24.16 | -3,622 | 11.8K | -23% | -$87.5K |
| DT | 2026-07-16 16:16 | 2026-07-14 | CSTL | MAETZOLD DEREK J | Pres, Chief Exec. Off, Dir | M - OptEx | $2.39 | +550 | 22.0K | +3% | +$1,314 |
| DT | 2026-07-16 16:16 | 2026-07-14 | CSTL | MAETZOLD DEREK J | Pres, Chief Exec. Off, Dir | S - Sale+OE | $22.92 | -550 | 21.5K | -2% | -$12.6K |
| DMTI | 2026-07-16 16:16 | 2026-07-14 | CSTL | MAETZOLD DEREK J | Pres, Chief Exec. Off, Dir | S - Sale+OE | $22.92 | -3,622 | 12.1K | -23% | -$83.0K |
| DT | 2026-07-06 16:25 | 2026-07-01 | CSTL | MAETZOLD DEREK J | Pres, Chief Exec. Off, Dir | M - OptEx | $2.39 | +6,214 | 27.7K | +29% | +$14.9K |
| DT | 2026-07-06 16:25 | 2026-07-01 | CSTL | MAETZOLD DEREK J | Pres, Chief Exec. Off, Dir | S - Sale+OE | $24.29 | -6,214 | 21.5K | -22% | -$150.9K |
| DMTI | 2026-07-06 16:25 | 2026-07-01 | CSTL | MAETZOLD DEREK J | Pres, Chief Exec. Off, Dir | S - Sale+OE | $24.29 | -3,622 | 12.4K | -23% | -$88.0K |
| MT | 2026-07-06 16:24 | 2026-07-01 | CSTL | Oelschlager Kristen M | COO | S - Sale | $24.42 | -8,586 | 21.9K | -28% | -$209.7K |
| T | 2026-06-18 16:19 | 2026-06-16 | CSTL | Oelschlager Kristen M | COO | S - Sale | $20.71 | -8,587 | 30.5K | -22% | -$177.8K |
| DT | 2026-06-17 17:39 | 2026-06-15 | CSTL | MAETZOLD DEREK J | Pres, Chief Exec. Off, Dir | M - OptEx | $2.39 | +550 | 22.0K | +3% | +$1,314 |
| DT | 2026-06-17 17:39 | 2026-06-15 | CSTL | MAETZOLD DEREK J | Pres, Chief Exec. Off, Dir | S - Sale+OE | $20.66 | -550 | 21.5K | -2% | -$11.4K |
| DMTI | 2026-06-17 17:39 | 2026-06-15 | CSTL | MAETZOLD DEREK J | Pres, Chief Exec. Off, Dir | S - Sale+OE | $20.66 | -3,622 | 12.6K | -22% | -$74.8K |
| DMT | 2026-06-03 16:15 | 2026-06-01 | CSTL | MAETZOLD DEREK J | Pres, Chief Exec. Off, Dir | M - OptEx | $2.39 | +6,214 | 27.7K | +29% | +$14.9K |
| DT | 2026-06-03 16:15 | 2026-06-01 | CSTL | MAETZOLD DEREK J | Pres, Chief Exec. Off, Dir | S - Sale+OE | $20.86 | -6,214 | 21.5K | -22% | -$129.6K |
| DMTI | 2026-06-03 16:15 | 2026-06-01 | CSTL | MAETZOLD DEREK J | Pres, Chief Exec. Off, Dir | S - Sale+OE | $20.86 | -3,622 | 1,668 | -68% | -$75.5K |
| D | 2026-05-27 16:20 | 2026-05-22 | CSTL | Cole G Bradley | Dir | M - OptEx | — | +13.7K | 33.0K | +71% | — |
| D | 2026-05-27 16:18 | 2026-05-22 | CSTL | BRADBURY DANIEL | Dir | M - OptEx | — | +13.7K | 22.3K | +158% | — |
| D | 2026-05-27 16:18 | 2026-05-22 | CSTL | Harrison Miles | Dir | M - OptEx | — | +13.7K | 35.6K | +62% | — |
| D | 2026-05-27 16:17 | 2026-05-22 | CSTL | Olson Tiffany | Dir | M - OptEx | — | +13.7K | 39.6K | +53% | — |
| D | 2026-05-27 16:17 | 2026-05-22 | CSTL | Goldberg Ellen | Dir | M - OptEx | — | +13.7K | 40.9K | +50% | — |
| D | 2026-05-27 16:16 | 2026-05-22 | CSTL | Caple Kim | Dir | M - OptEx | — | +13.7K | 36.1K | +61% | — |
| D | 2026-05-27 16:16 | 2026-05-22 | CSTL | Cotton Rodney | Dir | M - OptEx | — | +13.7K | 33.0K | +71% | — |
| D | 2026-05-26 16:06 | 2026-05-21 | CSTL | Juvenal Tobin W | Chief Commercial Off | M - OptEx | $3.38 | +11.2K | 98.0K | +13% | +$37.9K |
| DMT | 2026-05-22 16:12 | 2026-05-20+ | CSTL | MAETZOLD DEREK J | Pres, Chief Exec. Off, Dir | M - OptEx | $2.39 | +550 | 21.9K | +3% | +$1,314 |
| DMT | 2026-05-22 16:12 | 2026-05-20+ | CSTL | MAETZOLD DEREK J | Pres, Chief Exec. Off, Dir | S - Sale+OE | $20.15 | -550 | 21.5K | -2% | -$11.1K |
| DMTI | 2026-05-22 16:12 | 2026-05-20+ | CSTL | MAETZOLD DEREK J | Pres, Chief Exec. Off, Dir | S - Sale+OE | $20.15 | -3,622 | 1,946 | -65% | -$73.0K |
| DT | 2026-05-11 16:06 | 2026-05-07 | CSTL | MAETZOLD DEREK J | Pres, Chief Exec. Off, Dir | M - OptEx | $2.39 | +6,214 | 27.7K | +29% | +$14.9K |
| DMT | 2026-05-11 16:06 | 2026-05-07 | CSTL | MAETZOLD DEREK J | Pres, Chief Exec. Off, Dir | S - Sale+OE | $22.15 | -6,214 | 21.5K | -22% | -$137.7K |
| DMTI | 2026-05-11 16:06 | 2026-05-07 | CSTL | MAETZOLD DEREK J | Pres, Chief Exec. Off, Dir | S - Sale+OE | $22.15 | -3,622 | 2,224 | -62% | -$80.2K |
| DT | 2026-04-23 16:16 | 2026-04-21 | CSTL | MAETZOLD DEREK J | Pres, Chief Exec. Off, Dir | M - OptEx | $2.39 | +550 | 22.0K | +3% | +$1,314 |
| DT | 2026-04-23 16:16 | 2026-04-21 | CSTL | MAETZOLD DEREK J | Pres, Chief Exec. Off, Dir | S - Sale+OE | $25.10 | -550 | 21.5K | -2% | -$13.8K |
| DMTI | 2026-04-23 16:16 | 2026-04-21 | CSTL | MAETZOLD DEREK J | Pres, Chief Exec. Off, Dir | S - Sale+OE | $25.10 | -3,622 | 2,502 | -59% | -$90.9K |
| DT | 2026-04-08 16:34 | 2026-04-06 | CSTL | MAETZOLD DEREK J | Pres, Chief Exec. Off, Dir | M - OptEx | $2.39 | +6,214 | 27.7K | +29% | +$14.9K |
| DT | 2026-04-08 16:34 | 2026-04-06 | CSTL | MAETZOLD DEREK J | Pres, Chief Exec. Off, Dir | S - Sale+OE | $25.03 | -6,214 | 21.5K | -22% | -$155.5K |
| DMTI | 2026-04-08 16:34 | 2026-04-06 | CSTL | MAETZOLD DEREK J | Pres, Chief Exec. Off, Dir | S - Sale+OE | $25.03 | -3,622 | 2,780 | -57% | -$90.7K |
| D | 2026-03-30 | 2026-03-26 | CSTL | Cotton Rodney | Dir | M - OptEx | — | +5,329 | 19.3K | +38% | — |
| D | 2026-03-30 | 2026-03-26 | CSTL | MAETZOLD DEREK J | Pres, Chief Exec. Off, Dir | M - OptEx | $2.39 | +550 | 22.0K | +3% | +$1,314 |
| D | 2026-03-30 | 2026-03-26 | CSTL | MAETZOLD DEREK J | Pres, Chief Exec. Off, Dir | S - Sale+OE | $25.55 | -550 | 21.5K | -2% | -$14.1K |
| DMI | 2026-03-30 | 2026-03-26 | CSTL | MAETZOLD DEREK J | Pres, Chief Exec. Off, Dir | S - Sale+OE | $25.55 | -3,622 | 42.7K | -8% | -$92.5K |
| M | 2026-03-19 | 2026-03-17+ | CSTL | MAETZOLD DEREK J | Pres, Chief Exec. Off, Dir | S - Sale | $25.91 | -19.3K | 21.5K | -47% | -$500.1K |
| M | 2026-03-17 | 2026-03-13+ | CSTL | MAETZOLD DEREK J | Pres, Chief Exec. Off, Dir | S - Sale | $25.74 | -30.8K | 40.8K | -43% | -$792.4K |
| 2026-03-16 | 2026-03-12 | CSTL | Juvenal Tobin W | Chief Commercial Off | S - Sale | $25.24 | -20.9K | 86.8K | -19% | -$526.6K | |
| DMI | 2026-03-13 | 2026-03-11 | CSTL | MAETZOLD DEREK J | Pres, Chief Exec. Off, Dir | S - Sale+OE | $26.11 | -3,636 | 3,336 | -52% | -$94.9K |
| DM | 2026-03-13 | 2026-03-11+ | CSTL | MAETZOLD DEREK J | Pres, Chief Exec. Off, Dir | S - Sale+OE | $25.63 | -40.5K | 71.6K | -36% | -$1.04M |
| D | 2026-03-13 | 2026-03-11 | CSTL | MAETZOLD DEREK J | Pres, Chief Exec. Off, Dir | M - OptEx | $2.39 | +6,226 | 112.0K | +6% | +$14.9K |
| DM | 2026-03-09 | 2026-03-05 | CSTL | Cole G Bradley | Dir | S - Sale+OE | $28.47 | -7,403 | 19.3K | -28% | -$210.7K |
| D | 2026-03-09 | 2026-03-05 | CSTL | Cole G Bradley | Dir | M - OptEx | $3.38 | +4,748 | 26.7K | +22% | +$16.0K |
| 2026-03-09 | 2026-03-05 | CSTL | Stokes Frank | CFO | S - Sale | $27.98 | -6,001 | 60.1K | -9% | -$167.9K | |
| DM | 2026-03-05 | 2026-03-03+ | CSTL | Juvenal Tobin W | Chief Commercial Off | F - Tax | $28.01 | -14.1K | 107.7K | -12% | -$395.4K |
| D | 2026-03-05 | 2026-03-04 | CSTL | Juvenal Tobin W | Chief Commercial Off | M - OptEx | — | +25.8K | 118.1K | +28% | — |
| DM | 2026-03-05 | 2026-03-03 | CSTL | Stokes Frank | CFO | S - Sale+OE | $27.44 | -7,000 | 52.5K | -12% | -$192.1K |
| DM | 2026-03-05 | 2026-03-04 | CSTL | Stokes Frank | CFO | M - OptEx | $3.38 | +27.9K | 73.0K | +62% | +$94.5K |
| DM | 2026-03-05 | 2026-03-03+ | CSTL | Stokes Frank | CFO | F - Tax | $28.02 | -14.3K | 48.9K | -23% | -$401.9K |
| D | 2026-03-05 | 2026-03-04 | CSTL | MAETZOLD DEREK J | Pres, Chief Exec. Off, Dir | M - OptEx | — | +59.1K | 123.8K | +91% | — |
| DM | 2026-03-05 | 2026-03-03+ | CSTL | MAETZOLD DEREK J | Pres, Chief Exec. Off, Dir | F - Tax | $27.86 | -37.0K | 105.8K | -26% | -$1.03M |
| DM | 2026-03-05 | 2026-03-03+ | CSTL | Oelschlager Kristen M | COO | F - Tax | $28.01 | -9,219 | 39.0K | -19% | -$258.2K |
| D | 2026-03-05 | 2026-03-04 | CSTL | Oelschlager Kristen M | COO | M - OptEx | — | +25.8K | 45.8K | +128% | — |
| M | 2026-02-05 | 2026-02-03+ | CSTL | MAETZOLD DEREK J | Pres, Chief Exec. Off, Dir | S - Sale | $39.52 | -4,017 | 83.9K | -5% | -$158.7K |
| 2026-01-22 | 2026-01-20 | CSTL | MAETZOLD DEREK J | Pres, Chief Exec. Off, Dir | S - Sale | $40.01 | -4,017 | 87.7K | -4% | -$160.7K | |
| D | 2026-01-14 | 2026-01-12 | CSTL | Juvenal Tobin W | Chief Commercial Off | A - Grant | $0.00 | +9,207 | 96.0K | +11% | $0 |
| D | 2026-01-14 | 2026-01-12 | CSTL | Stokes Frank | CFO | A - Grant | $0.00 | +8,124 | 58.5K | +16% | $0 |
| D | 2026-01-14 | 2026-01-12 | CSTL | MAETZOLD DEREK J | Pres, Chief Exec. Off, Dir | A - Grant | $0.00 | +62.2K | 91.7K | +211% | $0 |
| D | 2026-01-14 | 2026-01-12 | CSTL | Oelschlager Kristen M | COO | A - Grant | $0.00 | +9,207 | 21.5K | +75% | $0 |
| M | 2026-01-07 | 2026-01-05+ | CSTL | MAETZOLD DEREK J | Pres, Chief Exec. Off, Dir | S - Sale | $38.76 | -4,017 | 29.5K | -12% | -$155.7K |
| 2025-12-29 | 2025-12-22 | CSTL | MAETZOLD DEREK J | Pres, Chief Exec. Off, Dir | S - Sale | $40.35 | -830 | 33.5K | -2% | -$33.5K | |
| 2025-12-19 | 2025-12-17 | CSTL | Oelschlager Kristen M | COO | S - Sale | $39.31 | -14.9K | 12.3K | -55% | -$585.2K | |
| 2025-12-19 | 2025-12-17 | CSTL | MAETZOLD DEREK J | Pres, Chief Exec. Off, Dir | S - Sale | $40.04 | -509 | 34.4K | -1% | -$20.4K | |
| M | 2025-12-17 | 2025-12-15+ | CSTL | MAETZOLD DEREK J | Pres, Chief Exec. Off, Dir | S - Sale | $38.69 | -32.3K | 34.9K | -48% | -$1.25M |
| 2025-12-15 | 2025-12-11 | CSTL | Juvenal Tobin W | Chief Commercial Off | S - Sale | $37.48 | -13.2K | 86.8K | -13% | -$494.7K |
Purchase Sale Sale after option exercise All abbreviations