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 |
|---|---|---|---|---|---|---|---|---|
| Sep 9, 2024 | Sep 9 9:18 PM | Derek Maetzold | Proposed Sale | 20,583 | $29.33 | $603.7K | — | View → |
| Aug 23, 2024 | Aug 23 9:17 PM | Derek Maetzold | Proposed Sale | 44,380 | $29.57 | $1.3M | — | View → |
| Nov 15, 2024 | — | Stokes Frank | Proposed Sale | 6,923 | $31.48 | $217.9K | — | View → |
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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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