CASTLE BIOSCIENCES INC
CSTL
60 insider filings · Latest: Oct 12, 2026
Common Stock Transactions
| Txn Date | Accepted | Insider | Type | Shares | Avg Price | Value | Shares Owned | Filing |
|---|---|---|---|---|---|---|---|---|
| Mar 12, 2026 | Mar 13 8:10 PM | Derek J MaetzoldDirector, Pres. & Chief Exec. Officer | Sale | 23,179 | $25.28 | $585.9K | 71,558(D) | View → |
| Mar 11, 2026 | Mar 13 8:10 PM | Derek J MaetzoldDirector, Pres. & Chief Exec. Officer | Sale | 20,946 | $26.11 | $546.9K | 3,336(I) | View → |
| Mar 12, 2026 | Mar 12 8:38 PM | Tobin Juvenal | Proposed Sale | 20,863 | $25.32 | $528.3K | — | View → |
| Mar 11, 2026 | Mar 11 8:52 PM | Derek Maetzold | Proposed Sale | 94,204 | $26.13 | $2.5M | — | View → |
| Mar 5, 2026 | Mar 9 8:13 PM | Frank StokesChief Financial Officer | Sale | 6,001 | $27.98 | $167.9K | 60,085(D) | View → |
| Mar 5, 2026 | Mar 9 8:12 PM | Bradley G ColeDirector | Sale | 7,403 | $28.47 | $210.7K | 19,309(D) | View → |
| Mar 3, 2026 | Mar 5 10:08 PM | Frank StokesChief Financial Officer | Sale | 7,000 | $27.44 | $192.1K | 52,483(D) | View → |
| Mar 5, 2026 | Mar 5 9:28 PM | FRANKLIN STOKES | Proposed Sale | 6,001 | $28.17 | $169.0K | — | View → |
| Mar 5, 2026 | Mar 5 9:04 PM | GORDON B. COLE | Proposed Sale | 7,403 | $28.47 | $210.7K | — | View → |
| Mar 3, 2026 | Mar 3 9:33 PM | FRANKLIN STOKES | Proposed Sale | 7,000 | $27.99 | $195.9K | — | View → |
| Feb 4, 2026 | Feb 5 9:17 PM | Derek J MaetzoldDirector, Pres. & Chief Exec. Officer | Sale | 817 | $37.99 | $31.0K | 83,698(D) | View → |
| Feb 3, 2026 | Feb 5 9:17 PM | Derek J MaetzoldDirector, Pres. & Chief Exec. Officer | Sale | 3,200 | $39.91 | $127.7K | 84,515(D) | View → |
| Jan 20, 2026 | Jan 22 9:15 PM | Derek J MaetzoldDirector, Pres. & Chief Exec. Officer | Sale | 4,017 | $40.01 | $160.7K | 87,715(D) | View → |
| Jan 5, 2026 | Jan 5 10:09 PM | Derek Maetzold | Proposed Sale | 12,051 | $39.00 | $470.0K | — | View → |
| Dec 17, 2025 | Dec 17 9:49 PM | Kristen M. Oelschlager | Proposed Sale | 14,888 | $39.05 | $581.4K | — | View → |
| Dec 15, 2025 | Dec 15 11:21 PM | Derek Maetzold | Proposed Sale | 33,685 | $38.88 | $1.3M | — | View → |
| Dec 11, 2025 | Dec 11 9:30 PM | TOBIN JUVENAL | Proposed Sale | 13,200 | $37.48 | $494.7K | — | View → |
| Dec 11, 2025 | Dec 11 9:07 PM | FRANKLIN M. STOKES | Proposed Sale | 4,496 | $37.45 | $168.4K | — | View → |
| Nov 25, 2025 | Nov 25 10:11 PM | Derek Maetzold | Proposed Sale | 10,712 | $39.93 | $427.7K | — | View → |
| Nov 24, 2025 | Nov 24 9:28 PM | TOBIN JUVENAL | Proposed Sale | 1,301 | $37.88 | $49.3K | — | View → |
Stock Options & Derivatives
| Txn Date | Accepted | Insider | Type | Shares | Exercise Price | Shares Owned | Filing |
|---|---|---|---|---|---|---|---|
| Oct 5, 2026 | Oct 7 8:10 PM | Derek J MaetzoldDirector, Pres. & Chief Exec. Officer | Option Exercise | 8,165 | $2.39 | 0(D) | View → |
| Oct 1, 2026 | Oct 5 8:07 PM | Kristen M OelschlagerChief Operating Officer | Option Exercise | 4,153 | $3.38 | 8,305(D) | View → |
| Sep 21, 2026 | Sep 23 8:27 PM | Derek J MaetzoldDirector, Pres. & Chief Exec. Officer | Option Exercise | 8,580 | $2.39 | 8,165(D) | View → |
| Sep 11, 2026 | Sep 15 8:08 PM | Derek J MaetzoldDirector, Pres. & Chief Exec. Officer | Option Exercise | 8,584 | $2.39 | 16,745(D) | View → |
| Sep 1, 2026 | Sep 3 8:07 PM | Kristen M OelschlagerChief Operating Officer | Option Exercise | 4,152 | $3.38 | 12,458(D) | View → |
| Aug 28, 2026 | Sep 1 8:12 PM | Derek J MaetzoldDirector, Pres. & Chief Exec. Officer | Option Exercise | 12,428 | $2.39 | 25,329(D) | View → |
| Aug 14, 2026 | Aug 18 8:09 PM | Derek J MaetzoldDirector, Pres. & Chief Exec. Officer | Option Exercise | 1,100 | $2.39 | 37,757(D) | View → |
| Aug 5, 2026 | Aug 6 8:14 PM | Derek J MaetzoldDirector, Pres. & Chief Exec. Officer | Option Exercise | 2,546 | $2.39 | 38,857(D) | View → |
| Aug 4, 2026 | Aug 6 8:14 PM | Derek J MaetzoldDirector, Pres. & Chief Exec. Officer | Option Exercise | 20,356 | $2.39 | 41,403(D) | View → |
| Aug 3, 2026 | Aug 4 8:35 PM | Derek J MaetzoldDirector, Pres. & Chief Exec. Officer | Option Exercise | 10,664 | $2.39 | 61,759(D) | View → |
| Jul 31, 2026 | Aug 4 8:35 PM | Derek J MaetzoldDirector, Pres. & Chief Exec. Officer | Option Exercise | 6,480 | $2.39 | 72,423(D) | View → |
| Jul 27, 2026 | Jul 29 8:09 PM | Derek J MaetzoldDirector, Pres. & Chief Exec. Officer | Option Exercise | 6,214 | $2.39 | 78,903(D) | View → |
| Jul 14, 2026 | Jul 16 8:16 PM | Derek J MaetzoldDirector, Pres. & Chief Exec. Officer | Option Exercise | 550 | $2.39 | 85,117(D) | View → |
| Jul 1, 2026 | Jul 6 8:25 PM | Derek J MaetzoldDirector, Pres. & Chief Exec. Officer | Option Exercise | 6,214 | $2.39 | 85,667(D) | View → |
| Jun 15, 2026 | Jun 17 9:39 PM | Derek J MaetzoldDirector, Pres. & Chief Exec. Officer | Option Exercise | 550 | $2.39 | 91,881(D) | View → |
| Jun 1, 2026 | Jun 3 8:15 PM | Derek J MaetzoldDirector, Pres. & Chief Exec. Officer | Option Exercise | 6,214 | $2.39 | 92,431(D) | View → |
| May 28, 2026 | Jun 1 8:48 PM | Tiffany OlsonDirector | Grant/Award | 11,766 | — | 11,766(D) | View → |
| May 28, 2026 | Jun 1 8:48 PM | Ellen GoldbergDirector | Grant/Award | 11,766 | — | 11,766(D) | View → |
| May 28, 2026 | Jun 1 8:48 PM | Miles HarrisonDirector | Grant/Award | 11,766 | — | 11,766(D) | View → |
| May 28, 2026 | Jun 1 8:47 PM | Rodney CottonDirector | Grant/Award | 11,766 | — | 11,766(D) | View → |
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