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 |
| 2026-08-28 Sale | 2026-09-01 4:12 pm | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 18,560 | $33.2 | $616,134 | 162,040 (Indirect Direct) | View |
| 2026-08-14 Sale | 2026-08-18 4:09 pm | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 7,232 | $30.02 | $217,105 | 174,746 (Indirect Direct) | View |
| 2026-08-04 Sale | 2026-08-06 4:14 pm | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 39,016 | $31.07 | $1,212,230 | 272,570 (Indirect Direct) | View |
| 2026-07-31 Sale | 2026-08-04 4:35 pm | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 28,646 | $30.28 | $867,451 | 333,894 (Indirect Direct) | View |
| 2026-07-27 Sale | 2026-07-29 4:09 pm | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 9,836 | $24.16 | $237,682 | 216,170 (Indirect Direct) | View |
| 2026-07-14 Sale | 2026-07-16 4:16 pm | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 4,172 | $22.92 | $95,622 | 222,662 (Indirect Direct) | View |
| 2026-07-01 Sale | 2026-07-06 4:25 pm | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 9,836 | $24.29 | $238,916 | 223,490 (Indirect Direct) | View |
| 2026-06-15 Sale | 2026-06-17 5:39 pm | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 4,172 | $20.66 | $86,194 | 229,982 (Indirect Direct) | View |
| 2026-06-01 Sale | 2026-06-03 4:15 pm | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 9,836 | $20.86 | $205,149 | 264,578 (Indirect Direct) | View |
| 2026-05-20 Sale | 2026-05-22 4:12 pm | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 4,172 | $20.15 | $84,066 | 173,253 (Indirect Direct) | View |
| 2026-05-07 Sale | 2026-05-11 4:06 pm | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 9,836 | $22.15 | $217,904 | 173,457 (Indirect Direct) | View |
| 2026-04-21 Sale | 2026-04-23 4:16 pm | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 4,172 | $25.1 | $104,709 | 179,949 (Indirect Direct) | View |
| 2026-04-06 Sale | 2026-04-08 4:34 pm | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 9,836 | $25.03 | $246,195 | 180,777 (Indirect Direct) | View |
| 2026-03-26 Sale | 2026-03-30 6:29 pm | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 4,172 | $25.55 | $106,599 | 187,269 (Indirect Direct) | View |
| 2026-03-17 Sale | 2026-03-19 4:21 pm | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 19,300 | $25.91 | $500,098 | 279,215 (Indirect Direct) | View |
| 2026-03-13 Sale | 2026-03-17 4:36 pm | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 30,779 | $25.75 | $792,410 | 298,515 (Indirect Direct) | View |
| 2026-03-11 Sale | 2026-03-13 4:10 pm | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 44,125 | $25.67 | $1,132,821 | 238,176 (Indirect Direct) | View |
| 2026-02-03 Sale | 2026-02-05 4:17 pm | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 4,017 | $39.52 | $158,757 | 345,070 (Indirect Direct) | View |
| 2026-01-20 Sale | 2026-01-22 4:15 pm | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 4,017 | $40.01 | $160,732 | 349,087 (Indirect Direct) | View |
| 2026-01-05 Sale | 2026-01-07 4:06 pm | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 4,017 | $38.76 | $155,694 | 290,885 (Indirect Direct) | View |
| 2025-12-22 Sale | 2025-12-29 4:07 pm | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 830 | $40.35 | $33,491 | 294,902 (Indirect Direct) | View |
| 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 |
Stock options: Exercise, Award, Grant, Conversion
| Transaction Date | Reported DateTime | Exercisable Expiration | Company | Symnbol | Insider Relationship | Shares Traded | Conversion Price | Shares Owned | Filing |
| 2026-08-28 Exercise | 2026-09-01 4:12 pm | N/A N/A | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 12,428 | $2.39 | 162,040 (Direct) | View |
| 2026-08-28 Exercise | 2026-09-01 4:12 pm | N/A 2028-05-09 | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 12,428 | $0 | 162,040 (Direct) | View |
| 2026-08-14 Exercise | 2026-08-18 4:09 pm | N/A N/A | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 1,100 | $2.39 | 174,746 (Direct) | View |
| 2026-08-14 Exercise | 2026-08-18 4:09 pm | N/A 2028-05-09 | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 1,100 | $0 | 174,746 (Direct) | View |
| 2026-08-04 Exercise | 2026-08-06 4:14 pm | N/A N/A | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 22,902 | $2.39 | 272,570 (Direct) | View |
| 2026-08-04 Exercise | 2026-08-06 4:14 pm | N/A 2028-05-09 | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 22,902 | $0 | 272,570 (Direct) | View |
| 2026-07-31 Exercise | 2026-08-04 4:35 pm | N/A N/A | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 17,144 | $2.39 | 333,894 (Direct) | View |
| 2026-07-31 Exercise | 2026-08-04 4:35 pm | N/A 2028-05-09 | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 17,144 | $0 | 333,894 (Direct) | View |
| 2026-07-27 Exercise | 2026-07-29 4:09 pm | N/A N/A | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 6,214 | $2.39 | 216,170 (Direct) | View |
| 2026-07-27 Exercise | 2026-07-29 4:09 pm | N/A 2028-05-09 | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 6,214 | $0 | 216,170 (Direct) | View |
| 2026-07-14 Exercise | 2026-07-16 4:16 pm | N/A N/A | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 550 | $2.39 | 222,662 (Direct) | View |
| 2026-07-14 Exercise | 2026-07-16 4:16 pm | N/A 2028-05-09 | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 550 | $0 | 222,662 (Direct) | View |
| 2026-07-01 Exercise | 2026-07-06 4:25 pm | N/A N/A | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 6,214 | $2.39 | 223,490 (Direct) | View |
| 2026-07-01 Exercise | 2026-07-06 4:25 pm | N/A 2028-05-09 | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 6,214 | $0 | 223,490 (Direct) | View |
| 2026-06-15 Exercise | 2026-06-17 5:39 pm | N/A N/A | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 550 | $2.39 | 229,982 (Direct) | View |
| 2026-06-15 Exercise | 2026-06-17 5:39 pm | N/A 2028-05-09 | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 550 | $0 | 229,982 (Direct) | View |
| 2026-06-01 Exercise | 2026-06-03 4:15 pm | N/A N/A | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 6,214 | $2.39 | 264,578 (Direct) | View |
| 2026-06-01 Exercise | 2026-06-03 4:15 pm | N/A 2028-11-11 | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 6,214 | $0 | 264,578 (Direct) | View |
| 2026-05-20 Exercise | 2026-05-22 4:12 pm | N/A N/A | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 550 | $2.39 | 173,253 (Direct) | View |
| 2026-05-20 Exercise | 2026-05-22 4:12 pm | N/A 2028-11-11 | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 550 | $0 | 173,253 (Direct) | View |
| 2026-05-07 Exercise | 2026-05-11 4:06 pm | N/A N/A | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 6,214 | $2.39 | 173,457 (Direct) | View |
| 2026-05-07 Exercise | 2026-05-11 4:06 pm | N/A 2028-11-11 | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 6,214 | $0 | 173,457 (Direct) | View |
| 2026-04-21 Exercise | 2026-04-23 4:16 pm | N/A N/A | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 550 | $2.39 | 179,949 (Direct) | View |
| 2026-04-21 Exercise | 2026-04-23 4:16 pm | N/A 2028-11-11 | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 550 | $0 | 179,949 (Direct) | View |
| 2026-04-06 Exercise | 2026-04-08 4:34 pm | N/A N/A | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 6,214 | $2.39 | 180,777 (Direct) | View |
| 2026-04-06 Exercise | 2026-04-08 4:34 pm | N/A 2028-11-11 | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 6,214 | $0 | 180,777 (Direct) | View |
| 2026-03-26 Exercise | 2026-03-30 6:29 pm | N/A N/A | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 550 | $2.39 | 187,269 (Direct) | View |
| 2026-03-26 Exercise | 2026-03-30 6:29 pm | N/A 2028-11-11 | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 550 | $0 | 187,269 (Direct) | View |
| 2026-03-11 Exercise | 2026-03-13 4:10 pm | N/A N/A | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 6,226 | $2.39 | 238,176 (Direct) | View |
| 2026-03-11 Exercise | 2026-03-13 4:10 pm | N/A 2028-11-11 | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 6,226 | $0 | 238,176 (Direct) | View |
| 2026-03-03 Tax Withholding | 2026-03-05 5:12 pm | N/A N/A | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 19,043 | $27.57 | 615,969 (Direct) | View |
| 2026-03-04 Exercise | 2026-03-05 5:12 pm | N/A N/A | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 118,194 | $0 | 615,969 (Direct) | View |
| 2026-03-04 Tax Withholding | 2026-03-05 5:12 pm | N/A N/A | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 17,931 | $28.17 | 615,969 (Direct) | View |
| 2026-03-03 Option Award | 2026-03-05 5:12 pm | N/A N/A | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 102,597 | $0 | 615,969 (Direct) | View |
| 2026-01-12 Option Award | 2026-01-14 4:30 pm | N/A N/A | CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer | 62,219 | $0 | 415,323 (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 |
| 2025-12-09 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 |
| 2025-12-10 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 |
| 2025-08-08 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 |
| 2025-08-08 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 |