Daniel Bradbury is Director at CASTLE BIOSCIENCES INC (CSTL). They have made 81 open-market trades across 6 companies since 2006, most recently 2026-05-22.
CIK 0001236397
4 open-market purchases totalling $1.2M since 2012, against 77 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| CORT | 130,575 | $14.3M |
| ILMN | 15,924 | $4.2M |
| EQ | 742,399 | $887K |
| CSTL | 22,340 | $714K |
| ICPT | 31,659 | $602K |
| NUVB | 25,000 | $111K |
| GERN | 51,323 | $60K |
| BMR | 15,469 | $26K |
| AMLN | 14,460 | — |
| Total | $20.9M |
Shares reported on the most recent Form 4, priced at the 2026-05-27 close. 1 holding could not be priced and is excluded from the total.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| CSTL | SELL · 10b5-1 | 2025-02-05 | 2025-02-07 | $28.17 | $323K | -5.3% | -31.5% | -37.7% |
| CSTL | SELL · 10b5-1 | 2025-01-06 | 2025-01-08 | $29.22 | $276K | -14.2% | -11.0% | -40.0% |
| CSTL | SELL · 10b5-1 | 2024-12-03 | 2024-12-05 | $30.96 | $344K | -13.4% | -9.7% | -34.4% |
| CSTL | SELL · 10b5-1 | 2024-11-01 | 2024-11-05 | $34.79 | $318K | -14.6% | -2.2% | -12.6% |
| CSTL | SELL · 10b5-1 | 2024-10-07 | 2024-10-09 | $29.44 | $337K | +12.9% | +17.9% | +14.0% |
| CSTL | SELL · 10b5-1 | 2024-09-05 | 2024-09-09 | $29.02 | $333K | +3.9% | -2.1% | +5.2% |
| CSTL | SELL · 10b5-1 | 2024-08-12 | 2024-08-14 | $26.65 | $306K | +4.9% | +13.4% | +19.2% |
| CSTL | SELL · 10b5-1 | 2024-05-06 | 2024-05-08 | $24.64 | $1.1M | +6.7% | -1.0% | +6.5% |
| CSTL | SELL · 10b5-1 | 2024-04-08 | 2024-04-10 | $20.45 | $49K | -5.8% | +16.5% | -14.2% |
| CSTL | SELL · 10b5-1 | 2024-04-04 | 2024-04-08 | $21.12 | $884K | -7.8% | +13.0% | -13.8% |
| CSTL | SELL · 10b5-1 | 2024-03-04 | 2024-03-06 | $20.54 | $775K | -12.4% | -3.7% | +8.8% |
| CSTL | SELL · 10b5-1 | 2024-02-07 | 2024-02-09 | $23.20 | $32K | +2.2% | -15.9% | +2.4% |
| CSTL | SELL · 10b5-1 | 2024-02-05 | 2024-02-07 | $23.23 | $924K | +7.4% | -11.0% | +1.8% |
| CSTL | SELL · 10b5-1 | 2024-01-04 | 2024-01-08 | $20.40 | $847K | -10.8% | +9.2% | -2.9% |
| CSTL | SELL · 10b5-1 | 2023-12-12 | 2023-12-14 | $20.02 | $31K | +7.4% | -6.0% | -3.6% |
| CSTL | SELL · 10b5-1 | 2023-12-08 | 2023-12-12 | $20.09 | $138K | +8.3% | +3.2% | +0.4% |
| CSTL | SELL · 10b5-1 | 2023-12-06 | 2023-12-08 | $20.02 | $3K | +2.2% | +9.2% | +3.6% |
| CSTL | SELL · 10b5-1 | 2023-12-01 | 2023-12-05 | $20.06 | $470K | +0.3% | +1.5% | +6.1% |
| CSTL | SELL | 2023-11-29 | 2023-12-01 | $20.11 | $901K | +2.9% | +10.0% | -9.6% |
| CSTL | SELL · 10b5-1 | 2023-11-24 | 2023-11-28 | $20.02 | $13K | +2.9% | +14.4% | +25.0% |
| CSTL | SELL | 2023-11-20 | 2023-11-22 | $20.04 | $166K | +0.7% | +9.9% | +27.4% |
| CSTL | SELL · 10b5-1 | 2023-09-01 | 2023-09-06 | $20.04 | $29K | -11.8% | -23.6% | +4.8% |
| CSTL | SELL | 2023-08-30 | 2023-09-01 | $20.04 | $334K | -10.1% | -16.0% | +2.1% |
| CSTL | SELL | 2023-07-07 | 2023-07-11 | $20.39 | $816K | -15.5% | -11.6% | -27.5% |
| CSTL | SELL | 2023-05-04 | 2023-05-08 | $21.72 | $855K | +4.3% | -33.9% | -20.7% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.