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 |
2021-02-08 Sale |
2021-02-10 4:09 pm |
CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer |
28,750 | $95.21 | $2,737,166 | 1,298,470 (Indirect Direct) |
View |
2021-01-29 Sale |
2021-02-02 4:05 pm |
CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer |
14,375 | $67.07 | $964,083 | 1,327,220 (Indirect Direct) |
View |
2021-01-27 Sale |
2021-01-29 4:18 pm |
CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer |
28,752 | $67.36 | $1,936,868 | 1,341,595 (Indirect Direct) |
View |
2021-01-25 Sale |
2021-01-27 4:11 pm |
CASTLE BIOSCIENCES INC | CSTL | BRADBURY DANIEL Director |
15,000 | $74.76 | $1,121,345 | 696,578 (Indirect) |
View |
2021-01-15 Sale |
2021-01-19 4:06 pm |
CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer |
14,377 | $75.12 | $1,079,982 | 1,370,347 (Indirect Direct) |
View |
2021-01-13 Sale |
2021-01-15 4:17 pm |
CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer |
28,754 | $74.83 | $2,151,645 | 1,384,724 (Indirect Direct) |
View |
2021-01-12 Sale |
2021-01-14 4:06 pm |
CASTLE BIOSCIENCES INC | CSTL | BRADBURY DANIEL Director |
19,613 | $76.51 | $1,500,582 | 711,578 (Indirect) |
View |
2021-01-11 Sale |
2021-01-13 4:08 pm |
CASTLE BIOSCIENCES INC | CSTL | Stokes Frank Chief Financial Officer |
15,000 | $78.1 | $1,171,471 | 91,660 (Direct) |
View |
2020-12-29 Sale |
2020-12-31 4:07 pm |
CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer |
30,000 | $67.52 | $2,025,743 | 1,416,581 (Indirect Direct) |
View |
2020-12-28 Sale |
2020-12-30 4:36 pm |
CASTLE BIOSCIENCES INC | CSTL | BRADBURY DANIEL Director |
30,000 | $69.69 | $2,090,782 | 731,191 (Indirect) |
View |
2020-12-18 Sale |
2020-12-21 4:06 pm |
CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer |
6,250 | $62.6 | $391,269 | 1,446,581 (Indirect Direct) |
View |
2020-12-16 Sale |
2020-12-18 4:02 pm |
CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer |
12,500 | $65.54 | $819,306 | 1,452,831 (Indirect Direct) |
View |
2020-12-16 Sale |
2020-12-18 3:59 pm |
CASTLE BIOSCIENCES INC | CSTL | Cook Joseph C. III Director |
169,900 | $66.29 | $11,262,796 | 741,305 (Indirect Direct) |
View |
2020-12-10 Sale |
2020-12-14 2:04 pm |
CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer |
30,000 | $59.29 | $1,778,640 | 1,573,881 (Indirect Direct) |
View |
2020-12-11 Sale |
2020-12-14 1:58 pm |
CASTLE BIOSCIENCES INC | CSTL | Cook Joseph C. III Director |
24,659 | $59.75 | $1,473,402 | 911,205 (Indirect Direct) |
View |
2020-12-10 Sale |
2020-12-14 1:52 pm |
CASTLE BIOSCIENCES INC | CSTL | BRADBURY DANIEL Director |
10,387 | $59.67 | $619,810 | 761,191 (Indirect) |
View |
2020-12-09 Sale |
2020-12-11 5:59 pm |
CASTLE BIOSCIENCES INC | CSTL | Cook Joseph C. III Director |
78,265 | $58.35 | $4,566,409 | 935,864 (Indirect Direct) |
View |
2020-12-07 Sale |
2020-12-09 5:24 pm |
CASTLE BIOSCIENCES INC | CSTL | Cook Joseph C. III Director |
47,176 | $56.2 | $2,651,169 | 1,014,129 (Indirect Direct) |
View |
2020-12-02 Sale |
2020-12-04 5:30 pm |
CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer |
18,750 | $51.05 | $957,267 | 1,495,331 (Indirect Direct) |
View |
2020-12-01 Sale |
2020-12-03 4:07 pm |
CASTLE BIOSCIENCES INC | CSTL | Spiess Bernhard E. Chief Business Officer |
40,000 | $49.97 | $1,998,800 | 11,747 (Direct) |
View |
2020-11-20 Sale |
2020-11-24 4:17 pm |
CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer |
7,194 | $47.64 | $342,716 | 1,514,081 (Indirect Direct) |
View |
2020-11-18 Sale |
2020-11-20 4:38 pm |
CASTLE BIOSCIENCES INC | CSTL | BRADBURY DANIEL Director |
7,500 | $46.57 | $349,272 | 771,578 (Indirect) |
View |
2020-11-16 Sale |
2020-11-18 6:00 pm |
CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer |
18,750 | $48.82 | $915,330 | 1,521,275 (Indirect Direct) |
View |
2020-11-12 Sale |
2020-11-16 4:14 pm |
CASTLE BIOSCIENCES INC | CSTL | Stokes Frank Chief Financial Officer |
26,000 | $50.87 | $1,322,547 | 125,160 (Direct) |
View |
2020-11-09 Sale |
2020-11-12 4:38 pm |
CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer |
11,402 | $49.6 | $565,582 | 1,540,025 (Indirect Direct) |
View |
2020-11-04 Sale |
2020-11-06 4:07 pm |
CASTLE BIOSCIENCES INC | CSTL | BRADBURY DANIEL Director |
7,500 | $50.7 | $380,225 | 779,078 (Indirect) |
View |
2020-11-03 Sale |
2020-11-05 6:00 pm |
CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer |
18,750 | $49.63 | $930,623 | 1,551,427 (Indirect Direct) |
View |
2020-10-28 Sale |
2020-10-30 4:13 pm |
CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer |
2,300 | $48.74 | $112,095 | 1,570,177 (Indirect Direct) |
View |
2020-10-20 Sale |
2020-10-22 4:06 pm |
CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer |
2,200 | $49.09 | $107,990 | 1,572,477 (Indirect Direct) |
View |
2020-10-20 Sale |
2020-10-22 4:03 pm |
CASTLE BIOSCIENCES INC | CSTL | BRADBURY DANIEL Director |
17,000 | $49.39 | $839,595 | 786,578 (Indirect) |
View |
2020-10-13 Sale |
2020-10-15 4:20 pm |
CASTLE BIOSCIENCES INC | CSTL | Stokes Frank Chief Financial Officer |
26,000 | $54.51 | $1,417,389 | 177,160 (Direct) |
View |
2020-10-12 Sale |
2020-10-14 7:11 pm |
CASTLE BIOSCIENCES INC | CSTL | Cook Joseph C. III Director |
50,000 | $54.76 | $2,738,086 | 1,061,305 (Indirect Direct) |
View |
2020-10-08 Sale |
2020-10-13 09:35 am |
CASTLE BIOSCIENCES INC | CSTL | BRADBURY DANIEL Director |
30,000 | $54.27 | $1,628,000 | 803,578 (Indirect) |
View |
2020-10-08 Sale |
2020-10-13 09:33 am |
CASTLE BIOSCIENCES INC | CSTL | KABAKOFF DAVID S Director |
50,000 | $54.2 | $2,709,853 | 883,577 (Indirect) |
View |
2020-10-06 Sale |
2020-10-08 4:16 pm |
CASTLE BIOSCIENCES INC | CSTL | KABAKOFF DAVID S Director |
50,000 | $53.09 | $2,654,655 | 933,577 (Indirect) |
View |
Stock options: Exercise, Award, Grant, Conversion
Transaction Date |
Reported DateTime |
Exercisable Expiration |
Company | Symnbol | Insider Relationship |
Shares Traded |
Conversion Price |
Shares Owned |
Filing |
2021-01-11 Exercise |
2021-01-13 4:08 pm |
N/A N/A |
CASTLE BIOSCIENCES INC | CSTL | Stokes Frank Chief Financial Officer |
15,000 | $2.39 | 91,660 (Direct) |
View |
2021-01-11 Exercise |
2021-01-13 4:08 pm |
N/A 2028-05-09 |
CASTLE BIOSCIENCES INC | CSTL | Stokes Frank Chief Financial Officer |
15,000 | $0 | 91,660 (Direct) |
View |
Ownership |
2021-01-11 4:57 pm |
N/A N/A |
CASTLE BIOSCIENCES INC | CSTL | BRADBURY DANIEL Director |
0 | $0 | 731,191 (Indirect) |
View |
2020-12-08 Ownership |
2021-01-11 4:57 pm |
N/A N/A |
CASTLE BIOSCIENCES INC | CSTL | BRADBURY DANIEL Director |
315,585 | $0 | 731,191 (Indirect) |
View |
Ownership |
2021-01-11 4:55 pm |
N/A N/A |
CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer |
0 | $0 | 1,413,478 (Indirect) |
View |
2020-12-16 Ownership |
2021-01-11 4:55 pm |
N/A N/A |
CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer |
349,103 | $0 | 1,413,478 (Direct) |
View |
2020-12-10 Option Award |
2020-12-14 2:11 pm |
N/A 2030-12-09 |
CASTLE BIOSCIENCES INC | CSTL | Stokes Frank Chief Financial Officer |
39,000 | $0 | 39,000 (Direct) |
View |
2020-12-10 Option Award |
2020-12-14 2:07 pm |
N/A 2030-12-09 |
CASTLE BIOSCIENCES INC | CSTL | Spiess Bernhard E. Chief Business Officer |
29,000 | $0 | 29,000 (Direct) |
View |
2020-12-10 Option Award |
2020-12-14 2:04 pm |
N/A 2030-12-09 |
CASTLE BIOSCIENCES INC | CSTL | MAETZOLD DEREK J Pres. & Chief Exec. Officer |
108,550 | $0 | 1,573,881 (Direct) |
View |
2020-12-03 Exercise |
2020-12-04 4:13 pm |
N/A N/A |
CASTLE BIOSCIENCES INC | CSTL | Stokes Frank Chief Financial Officer |
2,000 | $3.38 | 30,598 (Direct) |
View |
2020-12-03 Exercise |
2020-12-04 4:13 pm |
N/A 2029-03-12 |
CASTLE BIOSCIENCES INC | CSTL | Stokes Frank Chief Financial Officer |
2,000 | $0 | 30,598 (Direct) |
View |
2020-11-12 Exercise |
2020-11-16 4:14 pm |
N/A N/A |
CASTLE BIOSCIENCES INC | CSTL | Stokes Frank Chief Financial Officer |
26,000 | $2.39 | 125,160 (Direct) |
View |
2020-11-12 Exercise |
2020-11-16 4:14 pm |
N/A 2028-05-09 |
CASTLE BIOSCIENCES INC | CSTL | Stokes Frank Chief Financial Officer |
26,000 | $0 | 125,160 (Direct) |
View |
2020-10-13 Exercise |
2020-10-15 4:20 pm |
N/A N/A |
CASTLE BIOSCIENCES INC | CSTL | Stokes Frank Chief Financial Officer |
26,000 | $2.39 | 177,160 (Direct) |
View |
2020-10-13 Exercise |
2020-10-15 4:20 pm |
N/A 2028-05-09 |
CASTLE BIOSCIENCES INC | CSTL | Stokes Frank Chief Financial Officer |
26,000 | $0 | 177,160 (Direct) |
View |