Real time insider trading transaction history:
- Insiders are prohibited from making short-swing profits by trading their shares within 6 months of the registration or acquiring the shares.
- Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>
Common stock purchase or sale:
| Transaction Date | Reported DateTime | Company | Symbol | Insider Relationship | Shares Traded | Average Price | Total Amount | Shares Owned | Filing |
| 2025-12-17 Sale | 2025-12-19 4:06 pm | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 509 | $40.04 | $20,380 | 295,732 (Indirect Direct) | View |
| 2025-12-15 Sale | 2025-12-17 4:20 pm | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 32,346 | $38.69 | $1,251,400 | 296,241 (Indirect Direct) | View |
| 2025-12-04 Sale | 2025-12-08 4:28 pm | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 1,339 | $40.03 | $53,600 | 298,919 (Indirect Direct) | View |
| 2025-12-02 Sale | 2025-12-04 4:08 pm | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 2,678 | $39.23 | $105,058 | 300,258 (Indirect Direct) | View |
| 2025-11-26 Sale | 2025-12-01 4:09 pm | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 4,258 | $40.09 | $170,703 | 302,936 (Indirect Direct) | View |
| 2025-11-25 Sale | 2025-11-26 2:58 pm | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 5,115 | $40.05 | $204,851 | 307,194 (Indirect Direct) | View |
| 2025-11-18 Sale | 2025-11-20 4:07 pm | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 2,678 | $34.02 | $91,106 | 312,309 (Indirect Direct) | View |
| 2025-11-04 Sale | 2025-11-06 4:08 pm | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 9,373 | $30.84 | $289,079 | 314,987 (Indirect Direct) | View |
| 2025-10-20 Sale | 2025-10-23 09:30 am | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 1,339 | $22.44 | $30,047 | 324,360 (Indirect Direct) | View |
| 2025-10-02 Sale | 2025-10-06 4:11 pm | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 1,339 | $22.58 | $30,235 | 325,699 (Indirect Direct) | View |
| 2025-09-17 Sale | 2025-09-19 4:05 pm | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 1,339 | $21.97 | $29,419 | 327,038 (Indirect Direct) | View |
| 2025-09-02 Sale | 2025-09-04 4:04 pm | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 1,339 | $23.93 | $32,042 | 328,377 (Indirect Direct) | View |
| 2025-08-15 Sale | 2025-08-19 4:04 pm | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 1,339 | $20.04 | $26,834 | 329,716 (Indirect Direct) | View |
| 2025-08-13 Sale | 2025-08-15 4:14 pm | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 43,019 | $19.5 | $839,043 | 331,055 (Indirect Direct) | View |
| 2025-06-27 Sale | 2025-07-01 4:05 pm | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 22,576 | $20.3 | $458,293 | 222,298 (Indirect Direct) | View |
| 2025-04-21 Sale | 2025-04-23 4:08 pm | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 5,644 | $21.52 | $121,448 | 227,902 (Indirect Direct) | View |
| 2025-04-08 Sale | 2025-04-10 4:07 pm | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 5,644 | $20.19 | $113,932 | 229,303 (Indirect Direct) | View |
| 2025-03-26 Sale | 2025-03-28 4:07 pm | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 5,644 | $20.3 | $114,573 | 230,704 (Indirect Direct) | View |
| 2025-03-07 Sale | 2025-03-11 4:07 pm | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 29,177 | $20.07 | $585,673 | 232,105 (Indirect Direct) | View |
| 2025-03-04 Sale | 2025-03-06 4:17 pm | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 5,687 | $20.86 | $118,619 | 462,315 (Indirect Direct) | View |
| 2025-01-13 Sale | 2025-01-15 4:57 pm | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 2,565 | $28.03 | $71,903 | 234,922 (Indirect Direct) | View |
| 2025-01-06 Sale | 2025-01-08 6:18 pm | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 7,689 | $29.66 | $228,067 | 236,058 (Indirect Direct) | View |
| 2024-12-17 Sale | 2024-12-19 4:39 pm | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 9,364 | $28.34 | $265,358 | 392,148 (Indirect Direct) | View |
| 2024-12-13 Sale | 2024-12-17 4:21 pm | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 26,123 | $28.72 | $750,296 | 248,828 (Indirect Direct) | View |
| 2024-12-05 Sale | 2024-12-09 5:09 pm | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 5,127 | $31.35 | $160,742 | 240,600 (Indirect Direct) | View |
| 2024-11-12 Sale | 2024-11-14 6:21 pm | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 5,127 | $34.15 | $175,087 | 242,871 (Indirect Direct) | View |
| 2024-11-04 Sale | 2024-11-06 4:21 pm | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 5,127 | $32.54 | $166,820 | 245,142 (Indirect Direct) | View |
| 2024-10-14 Sale | 2024-10-16 4:34 pm | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 5,127 | $32.27 | $165,464 | 247,413 (Indirect Direct) | View |
| 2024-10-08 Sale | 2024-10-10 4:22 pm | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 2,562 | $30.27 | $77,549 | 249,684 (Indirect Direct) | View |
| 2024-10-04 Sale | 2024-10-08 4:48 pm | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 2,565 | $28.73 | $73,703 | 250,819 (Indirect Direct) | View |
| 2024-09-16 Sale | 2024-09-18 4:23 pm | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 5,127 | $30.97 | $158,793 | 251,955 (Indirect Direct) | View |
| 2024-09-11 Sale | 2024-09-13 4:33 pm | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 2,616 | $30.32 | $79,317 | 254,226 (Indirect Direct) | View |
| 2024-09-09 Sale | 2024-09-11 4:15 pm | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 2,586 | $29.46 | $76,176 | 255,382 (Indirect Direct) | View |
| 2024-09-03 Sale | 2024-09-05 4:07 pm | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 1,914 | $30.04 | $57,493 | 256,528 (Indirect Direct) | View |
| 2024-08-29 Sale | 2024-09-03 4:08 pm | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 4,441 | $30.08 | $133,584 | 257,360 (Indirect Direct) | View |
| 2024-08-23 Sale | 2024-08-27 4:11 pm | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 2,987 | $30.09 | $89,868 | 259,287 (Indirect Direct) | View |
Stock options: Exercise, Award, Grant, Conversion
| Transaction Date | Reported DateTime | Exercisable Expiration | Company | Symnbol | Insider Relationship | Shares Traded | Conversion Price | Shares Owned | Filing |
| 2025-12-10 Tax Withholding | 2025-12-11 6:48 pm | N/A N/A | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 6,070 | $38.02 | 362,083 (Direct) | View |
| 2025-12-09 Exercise | 2025-12-11 6:48 pm | N/A N/A | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 48,919 | $0 | 362,083 (Direct) | View |
| 2025-12-09 Tax Withholding | 2025-12-11 6:48 pm | N/A N/A | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 13,181 | $38.25 | 362,083 (Direct) | View |
| 2025-08-08 Tax Withholding | 2025-08-12 4:32 pm | N/A N/A | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 23,972 | $19.36 | 374,074 (Direct) | View |
| 2025-08-08 Exercise | 2025-08-12 4:32 pm | N/A N/A | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 66,991 | $0 | 374,074 (Direct) | View |
| 2025-03-04 Option Award | 2025-03-06 4:17 pm | N/A N/A | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 111,948 | $0 | 462,315 (Direct) | View |
| 2025-03-04 Exercise | 2025-03-06 4:17 pm | N/A N/A | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 31,109 | $0 | 462,315 (Direct) | View |
| 2025-03-04 Tax Withholding | 2025-03-06 4:17 pm | N/A N/A | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 7,576 | $22.23 | 462,315 (Direct) | View |
| 2024-12-10 Tax Withholding | 2024-12-11 4:53 pm | N/A N/A | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 8,180 | $29.63 | 510,050 (Direct) | View |
| 2024-12-09 Tax Withholding | 2024-12-11 4:53 pm | N/A N/A | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 13,181 | $30.91 | 510,050 (Direct) | View |
| 2024-12-09 Exercise | 2024-12-11 4:53 pm | N/A N/A | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 54,283 | $0 | 510,050 (Direct) | View |
| 2024-08-09 Tax Withholding | 2024-08-13 6:17 pm | N/A N/A | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 21,828 | $26.83 | 507,010 (Direct) | View |
| 2024-08-09 Option Award | 2024-08-13 6:17 pm | N/A N/A | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 66,991 | $0 | 507,010 (Direct) | View |