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 |
|---|---|---|---|---|---|---|---|---|
| Aug 25, 2026 | Aug 25 9:46 PM | Tobin Juvenal | Proposed Sale | 22,500 | $35.00 | $787.5K | — | View → |
| Aug 24, 2026 | Aug 24 8:47 PM | Kristen M. Oelschlager | Proposed Sale | 24,602 | $34.20 | $841.4K | — | View → |
| Aug 17, 2026 | Aug 19 8:11 PM | Tobin W JuvenalChief Commercial Officer | Sale | 1,730 | $29.59 | $51.2K | 75,964(D) | View → |
| Aug 14, 2026 | Aug 18 8:10 PM | Frank StokesChief Financial Officer | Sale | 24,908 | $29.77 | $741.5K | 35,177(D) | View → |
| Aug 14, 2026 | Aug 18 8:09 PM | Derek J MaetzoldDirector, Pres. & Chief Exec. Officer | Sale | 7,232 | $30.02 | $217.1K | 11,534(I) | View → |
| Aug 14, 2026 | Aug 14 10:50 PM | FRANKLIN M. STOKES | Proposed Sale | 24,908 | $29.77 | $741.5K | — | View → |
| Aug 14, 2026 | Aug 14 9:38 PM | Derek Maetzold | Proposed Sale | 25,792 | $29.62 | $764.0K | — | View → |
| Nov 24, 2025 | Aug 6 8:14 PM | Tobin W JuvenalChief Commercial Officer | Sale | 1,301 | $38.39 | $49.9K | 77,694(D) | View → |
| Aug 5, 2026 | Aug 6 8:14 PM | Derek J MaetzoldDirector, Pres. & Chief Exec. Officer | Sale | 3,575 | $30.68 | $109.7K | 19,607(I) | View → |
| Aug 4, 2026 | Aug 6 8:14 PM | Derek J MaetzoldDirector, Pres. & Chief Exec. Officer | Sale | 35,441 | $31.11 | $1.1M | 20,080(I) | View → |
| Aug 3, 2026 | Aug 5 8:18 PM | Kristen M OelschlagerChief Operating Officer | Sale | 8,586 | $29.77 | $255.6K | 13,288(D) | View → |
| Aug 3, 2026 | Aug 4 8:36 PM | Tobin W JuvenalChief Commercial Officer | Sale | 1,730 | $28.25 | $48.9K | 78,995(D) | View → |
| Jul 31, 2026 | Aug 4 8:36 PM | Tobin W JuvenalChief Commercial Officer | Sale | 17,310 | $29.31 | $507.3K | 80,725(D) | View → |
| Aug 3, 2026 | Aug 4 8:35 PM | Derek J MaetzoldDirector, Pres. & Chief Exec. Officer | Sale | 18,493 | $30.35 | $561.3K | 27,009(I) | View → |
| Jul 31, 2026 | Aug 4 8:35 PM | Derek J MaetzoldDirector, Pres. & Chief Exec. Officer | Sale | 10,153 | $30.15 | $306.1K | 30,606(I) | View → |
| Jul 31, 2026 | Jul 31 8:52 PM | Tobin Juvenal | Proposed Sale | 22,500 | $28.00 | $630.0K | — | View → |
| Jul 31, 2026 | Jul 31 8:52 PM | Derek Maetzold | Proposed Sale | 67,662 | $28.00 | $1.9M | — | View → |
| Jul 27, 2026 | Jul 29 8:09 PM | Derek J MaetzoldDirector, Pres. & Chief Exec. Officer | Sale | 9,836 | $24.16 | $237.7K | 11,812(I) | View → |
| Jul 14, 2026 | Jul 16 8:16 PM | Derek J MaetzoldDirector, Pres. & Chief Exec. Officer | Sale | 4,172 | $22.92 | $95.6K | 12,090(I) | View → |
| Jul 1, 2026 | Jul 6 8:25 PM | Derek J MaetzoldDirector, Pres. & Chief Exec. Officer | Sale | 9,836 | $24.29 | $238.9K | 12,368(I) | 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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