Insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Castle Biosciences Inc (CSTL) since 2019 are shown in Table 1 and Table 2. Table 1 shows the monthly insider trading data of Castle Biosciences Inc. (See page 1 of this report.) Table 2 shows the detailed insider transactions. This company's CIK number is 1447362.
Total stock buying since 2019: $12,499,089.
Total stock sales since 2019: $334,093,908.
Total stock option exercises since 2019: $1,069,086.
| Insider Buying | Insider Sales | Option Exercises | ||||
|---|---|---|---|---|---|---|
| Year | Shares | Value | Shares | Value | Shares | Value |
| 2025 | 0 | $0 | 202,459 | $4,436,874 | 226,299 | $0 |
| 2024 | 0 | $0 | 307,152 | $7,835,081 | 202,771 | $55,322 |
| 2023 | 4,800 | $68,400 | 463,926 | $10,041,582 | 175,762 | $62,459 |
| 2022 | 1,320 | $24,769 | 274,891 | $9,070,952 | 97,601 | $94,236 |
| 2021 | 0 | $0 | 1,290,912 | $157,962,142 | 120,797 | $437,599 |
| 2020 | 0 | $0 | 3,227,426 | $144,746,989 | 197,860 | $419,470 |
| 2019 | 775,370 | $12,405,920 | 18 | $288 | 0 | $0 |
| Trade Date | Insider Name | Trade Type | Shares | Price ($) | Value ($) |
|---|---|---|---|---|---|
| 2023-06-05 | Goldberg Ellen (Director) | Buy | 4,800 | 14.25 | 68,400 |
| 2023-06-02 | Caple Kim (Director) | Option Ex | 3,825 | .00 | 0 |
| 2023-06-02 | Goldberg Ellen (Director) | Option Ex | 3,825 | .00 | 0 |
| 2023-06-02 | Harrison Miles (Director) | Option Ex | 3,825 | .00 | 0 |
| 2023-06-02 | Aspinall Mara G. (Director) | Option Ex | 3,825 | .00 | 0 |
| 2023-06-02 | Olson Tiffany (Director) | Option Ex | 3,825 | .00 | 0 |
| 2023-06-02 | Cole G Bradley (Director) | Option Ex | 3,825 | .00 | 0 |
| 2023-06-02 | Bradbury Daniel (Director) | Option Ex | 3,825 | .00 | 0 |
| 2023-05-16 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Sale | 3,760 | 22.82 | 85,803 |
| 2023-05-15 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Sale | 4,612 | 23.45 | 108,137 |
| 2023-05-10 | Olson Tiffany | Option Ex | 487 | .00 | 0 |
| 2023-05-05 | Bradbury Daniel | Sale | 7,357 | 21.46 | 157,888 |
| 2023-05-04 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Sale | 8,372 | 21.69 | 181,555 |
| 2023-05-04 | Bradbury Daniel | Sale | 17,643 | 21.58 | 380,806 |
| 2023-04-13 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Sale | 5,467 | 22.68 | 123,975 |
| 2023-04-12 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Sale | 2,905 | 22.61 | 65,687 |
| 2023-04-05 | Bradbury Daniel | Sale | 7,100 | 22.20 | 157,620 |
| 2023-04-04 | Stokes Frank (Chief Financial Officer) | Option Ex | 4,000 | 3.38 | 13,520 |
| 2023-04-04 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Sale | 1,202 | 22.10 | 26,565 |
| 2023-04-04 | Bradbury Daniel | Sale | 7,600 | 22.19 | 168,613 |
| 2023-04-03 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Sale | 7,170 | 22.15 | 158,786 |
| 2023-04-03 | Bradbury Daniel | Sale | 10,300 | 22.14 | 227,990 |
| 2023-03-14 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Sale | 8,372 | 20.95 | 175,426 |
| 2023-03-06 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Sale | 8,372 | 24.71 | 206,855 |
| 2023-03-03 | Bradbury Daniel | Sale | 13,651 | 24.53 | 334,859 |
| 2023-03-02 | Bradbury Daniel | Sale | 11,349 | 23.37 | 265,214 |
| 2023-03-01 | Juvenal Tobin W (Chief Commercial Officer) | Option Ex | 6,173 | 2.39 | 14,753 |
| 2023-02-13 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Sale | 910 | 26.26 | 23,900 |
| 2023-02-10 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Sale | 7,462 | 26.17 | 195,288 |
| 2023-02-02 | Bradbury Daniel | Sale | 5,174 | 28.84 | 149,192 |
| 2023-02-01 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Sale | 8,384 | 27.11 | 227,265 |
| 2023-02-01 | Bradbury Daniel | Sale | 19,826 | 27.25 | 540,159 |
| 2022-12-28 | Oelschlager Kristen M (Chief Operating Officer) | Option Ex | 7,178 | 2.39 | 17,155 |
| 2022-12-10 | Oelschlager Kristen M (Chief Operating Officer) | Option Ex | 7,920 | .00 | 0 |
| 2022-12-10 | Juvenal Tobin W (Chief Commercial Officer) | Option Ex | 15,840 | .00 | 0 |
| 2022-12-10 | Stokes Frank (Chief Financial Officer) | Option Ex | 8,170 | .00 | 0 |
| 2022-12-10 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Option Ex | 20,787 | .00 | 0 |
| 2022-12-01 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Option Ex | 10,000 | 3.72 | 37,200 |
| 2022-12-01 | Bradbury Daniel | Sale | 7,704 | 23.95 | 184,503 |
| 2022-11-22 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Sale | 6,762 | 20.51 | 138,687 |
| 2022-11-21 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Sale | 20,112 | 20.84 | 419,133 |
| 2022-11-10 | Juvenal Tobin W (Chief Commercial Officer) | Option Ex | 7,400 | 2.38 | 17,574 |
| 2022-10-25 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Sale | 817 | 20.98 | 17,136 |
| 2022-10-24 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Sale | 8,141 | 20.41 | 166,182 |
| 2022-10-11 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Sale | 2,444 | 23.62 | 57,165 |
| 2022-10-10 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Sale | 6,514 | 25.31 | 164,888 |
| 2022-09-27 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Sale | 3,844 | 24.17 | 92,905 |
| 2022-09-26 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Sale | 5,114 | 24.36 | 124,566 |
| 2022-08-30 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Sale | 700 | 29.42 | 20,594 |
| 2022-08-29 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Sale | 9,659 | 29.85 | 288,321 |
| 2022-08-16 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Sale | 3,009 | 32.15 | 94,726 |
| 2022-08-15 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Sale | 15,958 | 33.68 | 537,465 |
| 2022-08-04 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Sale | 8,350 | 30.85 | 257,605 |
| 2022-08-03 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Sale | 100 | 30.03 | 3,002 |
| 2022-08-02 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Sale | 259 | 27.12 | 7,024 |
| 2022-08-01 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Sale | 8,700 | 27.44 | 238,719 |
| 2022-08-01 | Bradbury Daniel | Sale | 7,704 | 27.47 | 211,628 |
| 2022-07-14 | Caple Kim | Option Ex | 440 | .00 | 0 |
| 2022-07-14 | Goldberg Ellen | Option Ex | 440 | .00 | 0 |
| 2022-06-10 | Harrison Miles | Option Ex | 830 | .00 | 0 |
| 2022-06-10 | Aspinall Mara G. | Option Ex | 830 | .00 | 0 |
| 2022-06-10 | Cole G Bradley | Option Ex | 830 | .00 | 0 |
| 2022-06-10 | Bradbury Daniel | Option Ex | 830 | .00 | 0 |
| 2022-05-12 | Stokes Frank (Chief Financial Officer) | Option Ex | 4,000 | 3.38 | 13,520 |
| 2022-05-12 | Olson Tiffany | Buy | 1,320 | 18.77 | 24,769 |
| 2022-05-10 | Olson Tiffany | Option Ex | 486 | .00 | 0 |
| 2022-03-30 | Bradbury Daniel | Sale | 8,852 | 45.19 | 400,048 |
| 2022-03-29 | Bradbury Daniel | Sale | 8,852 | 45.41 | 401,942 |
| 2022-03-15 | Bradbury Daniel | Sale | 8,852 | 36.76 | 325,399 |
| 2022-03-14 | Bradbury Daniel | Sale | 8,852 | 38.37 | 339,606 |
| 2022-02-23 | Bradbury Daniel | Sale | 8,852 | 39.29 | 347,777 |
| 2022-02-22 | Bradbury Daniel | Sale | 8,852 | 39.08 | 345,953 |
| 2022-02-10 | Bradbury Daniel | Sale | 8,852 | 45.49 | 402,668 |
| 2022-02-09 | Bradbury Daniel | Sale | 8,852 | 46.56 | 412,175 |
| 2022-01-24 | Bradbury Daniel | Sale | 14,631 | 35.44 | 518,478 |
| 2022-01-20 | Bradbury Daniel | Sale | 15,604 | 35.30 | 550,774 |
| 2022-01-18 | Bradbury Daniel | Sale | 2,470 | 35.25 | 87,074 |
| 2022-01-05 | Bradbury Daniel | Sale | 16,353 | 42.08 | 688,183 |
| 2022-01-04 | Bradbury Daniel | Sale | 16,353 | 43.88 | 717,504 |
| 2021-12-10 | Oelschlager Kristen M (Chief Operating Officer) | Option Ex | 1,750 | .00 | 0 |
| 2021-12-10 | Juvenal Tobin W (Chief Commercial Officer) | Option Ex | 1,750 | .00 | 0 |
| 2021-12-10 | Spiess Bernhard E. (Chief Business Officer) | Option Ex | 1,500 | .00 | 0 |
| 2021-12-10 | Stokes Frank (Chief Financial Officer) | Option Ex | 2,000 | .00 | 0 |
| 2021-12-10 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Option Ex | 5,363 | .00 | 0 |
| 2021-11-16 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Option Ex | 15,409 | 3.72 | 57,321 |
| 2021-11-15 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Sale | 16,406 | 52.76 | 865,547 |
| 2021-11-15 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Option Ex | 16,406 | 2.36 | 38,718 |
| 2021-11-10 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Sale | 1,200 | 56.46 | 67,748 |
| 2021-11-09 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Sale | 2,500 | 57.18 | 142,940 |
| 2021-11-08 | Bradbury Daniel | Sale | 5,554 | 61.30 | 340,432 |
| 2021-11-04 | Bradbury Daniel | Sale | 4,446 | 61.18 | 272,006 |
| 2021-10-22 | Bradbury Daniel | Sale | 5,000 | 62.71 | 313,565 |
| 2021-10-21 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Sale | 2,500 | 63.44 | 158,602 |
| 2021-10-21 | Bradbury Daniel | Sale | 5,000 | 62.98 | 314,915 |
| 2021-10-20 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Sale | 2,500 | 65.55 | 163,865 |
| 2021-10-19 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Sale | 2,500 | 67.00 | 167,502 |
| 2021-10-06 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Sale | 2,500 | 63.81 | 159,537 |
| 2021-10-05 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Sale | 2,500 | 62.43 | 156,067 |
| 2021-10-05 | Bradbury Daniel | Sale | 5,000 | 62.59 | 312,925 |
| 2021-10-04 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Sale | 2,500 | 61.60 | 153,997 |
| 2021-10-04 | Bradbury Daniel | Sale | 5,000 | 61.80 | 308,995 |
| 2021-09-30 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Sale | 12,500 | 65.98 | 824,712 |
| 2021-09-29 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Sale | 12,500 | 66.02 | 825,200 |
| 2021-09-28 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Sale | 12,500 | 67.25 | 840,574 |
| 2021-09-27 | Oelschlager Kristen M (Chief Operating Officer) | Sale | 10,000 | 71.23 | 712,300 |
| 2021-09-22 | Bradbury Daniel | Sale | 5,000 | 74.72 | 373,590 |
| 2021-09-21 | Bradbury Daniel | Sale | 5,000 | 73.99 | 369,935 |
| 2021-09-15 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Sale | 15,000 | 74.14 | 1,112,175 |
| 2021-09-14 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Sale | 15,000 | 75.02 | 1,125,227 |
| 2021-09-13 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Sale | 15,000 | 72.76 | 1,091,340 |
| 2021-09-09 | Bradbury Daniel | Sale | 5,000 | 76.66 | 383,320 |
| 2021-09-08 | Bradbury Daniel | Sale | 5,000 | 76.49 | 382,440 |
| 2021-09-02 | Spiess Bernhard E. (Chief Business Officer) | Sale | 15,401 | 76.22 | 1,173,910 |
| 2021-09-02 | Spiess Bernhard E. (Chief Business Officer) | Option Ex | 15,401 | 2.15 | 33,189 |
| 2021-08-31 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Sale | 15,000 | 75.52 | 1,132,755 |
| 2021-08-30 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Sale | 15,000 | 75.20 | 1,127,940 |
| 2021-08-27 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Sale | 15,000 | 74.28 | 1,114,230 |
| 2021-08-23 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Sale | 7,500 | 70.57 | 529,297 |
| 2021-08-18 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Sale | 4,490 | 61.13 | 274,473 |
| 2021-08-18 | Bradbury Daniel | Sale | 9,356 | 61.20 | 572,633 |
| 2021-08-17 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Sale | 8,010 | 59.30 | 475,033 |
| 2021-08-17 | Bradbury Daniel | Sale | 644 | 60.03 | 38,657 |
| 2021-08-16 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Sale | 12,500 | 61.60 | 770,025 |
| 2021-08-13 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Sale | 12,500 | 65.21 | 815,112 |
| 2021-08-04 | Bradbury Daniel | Sale | 5,000 | 69.97 | 349,870 |
| 2021-08-03 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Sale | 4,020 | 70.35 | 282,807 |
| 2021-08-03 | Bradbury Daniel | Sale | 5,000 | 69.64 | 348,215 |
| 2021-08-02 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Sale | 1,369 | 70.26 | 96,185 |
| 2021-07-30 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Sale | 2,111 | 70.17 | 148,128 |
| 2021-07-27 | Bradbury Daniel | Sale | 5,000 | 63.38 | 316,910 |
| 2021-07-26 | Bradbury Daniel | Sale | 5,000 | 66.85 | 334,250 |
| 2021-07-21 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Sale | 12,500 | 67.62 | 845,250 |
| 2021-07-20 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Sale | 12,500 | 66.21 | 827,575 |
| 2021-07-19 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Sale | 12,500 | 64.70 | 808,700 |
| 2021-07-09 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Sale | 10,000 | 72.11 | 721,060 |
| 2021-07-09 | Bradbury Daniel | Sale | 5,000 | 72.58 | 362,905 |
| 2021-07-08 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Sale | 10,000 | 69.17 | 691,740 |
| 2021-07-08 | Bradbury Daniel | Sale | 5,000 | 69.24 | 346,180 |
| 2021-07-07 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Sale | 10,000 | 70.50 | 705,030 |
| 2021-06-24 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Sale | 10,000 | 75.12 | 751,200 |
| 2021-06-23 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Sale | 10,000 | 75.36 | 753,550 |
| 2021-06-22 | Maetzold Derek J (Pres. & Chief Exec. Officer) | Sale | 10,000 | 74.56 | 745,600 |
| 2021-06-17 | Juvenal Tobin W (Chief Commercial Officer) | Sale | 10,000 | 75.40 | 754,000 |
| 2021-06-17 | Juvenal Tobin W (Chief Commercial Officer) | Option Ex | 10,000 | 2.38 | 23,750 |
| 2021-06-17 | Stokes Frank (Chief Financial Officer) | Sale | 1,273 | 73.00 | 92,929 |
| 2021-06-17 | Stokes Frank (Chief Financial Officer) | Option Ex | 1,273 | 2.39 | 3,042 |
| 2021-06-17 | Kabakoff David S | Sale | 30,000 | 75.07 | 2,252,100 |
| 2021-06-16 | Stokes Frank (Chief Financial Officer) | Sale | 2,127 | 73.07 | 155,419 |
| 2021-06-16 | Stokes Frank (Chief Financial Officer) | Option Ex | 2,127 | 2.39 | 5,083 |
| 2021-06-15 | Stokes Frank (Chief Financial Officer) | Sale | 11,600 | 73.02 | 847,032 |
Insider trading activities including stock purchases, stock sales, and option exercises of CSTL listed in the above tables cannot be completely guaranteed as to their accuracy. For more insider trading information of Castle Biosciences Inc (symbol CSTL, CIK number 1447362) see the Securities and Exchange Commission (SEC) website.