Who
Frank Stokes
Chief Financial Officer
Company insider
Files Form 4 as: Chief Financial Officer, Castle Biosciences; Director, Exagen.
In numbers
- Trades disclosed
- 144
- Buys
- 0
- Sells
- 19
- Bought
- $0
- Sold
- $9.5M
- Companies
- 2
- Companies where not an officer
- 1
- First trade
- 13 Dec 2019
- Last trade
- 14 Aug 2026
- Last filed
- 18 Aug 2026
Companies traded
Activity over time
1 Nov 2024 – 1 Oct 2026
Buys above the line, sells below, each month.
Every trade
| Traded | Company | What | Amount | |
|---|---|---|---|---|
| 14 Aug 2026filed 18 Aug 2026 | CSTL Castle BiosciencesDiagnostics & Labs | SEC FORM 4 Sold | $742K24,908 at $29.77 | filing |
| 14 Aug 2026filed 18 Aug 2026 | CSTL Castle BiosciencesDiagnostics & Labs | SEC FORM 4 Sold | $742K24,908 at $29.77 | filing |
| 9 Jun 2026filed 22 Jun 2026 | XGN Exagenoption or derivative · Diagnostics & Labs | SEC FORM 4 Code A | —37,500 at $0.00 | filing |
| 9 Jun 2026filed 22 Jun 2026 | XGN Exagenoption or derivative · Diagnostics & Labs | SEC FORM 4 Code A | —37,500 at $0.00 | filing |
| 5 Mar 2026filed 9 Mar 2026 | CSTL Castle BiosciencesDiagnostics & Labs | SEC FORM 4 Sold | $168K6,001 at $27.98 | filing |
| 5 Mar 2026filed 9 Mar 2026 | CSTL Castle BiosciencesDiagnostics & Labs | SEC FORM 4 Sold | $168K6,001 at $27.98 | filing |
| 4 Mar 2026filed 5 Mar 2026 | CSTL Castle Biosciencesoption or derivative · Diagnostics & Labs | SEC FORM 4 Code M | —3,800 at $0.00 | filing |
| 4 Mar 2026filed 5 Mar 2026 | CSTL Castle Biosciencesoption or derivative · Diagnostics & Labs | SEC FORM 4 Code M | —12,186 at $0.00 | filing |
| 4 Mar 2026filed 5 Mar 2026 | CSTL Castle Biosciencesoption or derivative · Diagnostics & Labs | SEC FORM 4 Code M | —11,960 at $0.00 | filing |
| 4 Mar 2026filed 5 Mar 2026 | CSTL Castle Biosciencesoption or derivative · Diagnostics & Labs | SEC FORM 4 Code M | —3,800 at $0.00 | filing |
| 4 Mar 2026filed 5 Mar 2026 | CSTL Castle BiosciencesDiagnostics & Labs | SEC FORM 4 Code M | —24,146 | filing |
| 4 Mar 2026filed 5 Mar 2026 | CSTL Castle BiosciencesDiagnostics & Labs | SEC FORM 4 Code F | $302K10,732 at $28.17 | filing |
| 4 Mar 2026filed 5 Mar 2026 | CSTL Castle BiosciencesDiagnostics & Labs | SEC FORM 4 Code M | $13K3,800 at $3.38 | filing |
| 4 Mar 2026filed 5 Mar 2026 | CSTL Castle Biosciencesoption or derivative · Diagnostics & Labs | SEC FORM 4 Code M | —12,186 at $0.00 | filing |
| 4 Mar 2026filed 5 Mar 2026 | CSTL Castle BiosciencesDiagnostics & Labs | SEC FORM 4 Code M | —24,146 | filing |
| 4 Mar 2026filed 5 Mar 2026 | CSTL Castle BiosciencesDiagnostics & Labs | SEC FORM 4 Code F | $302K10,732 at $28.17 | filing |
| 4 Mar 2026filed 5 Mar 2026 | CSTL Castle BiosciencesDiagnostics & Labs | SEC FORM 4 Code M | $13K3,800 at $3.38 | filing |
| 4 Mar 2026filed 5 Mar 2026 | CSTL Castle Biosciencesoption or derivative · Diagnostics & Labs | SEC FORM 4 Code M | —11,960 at $0.00 | filing |
| 3 Mar 2026filed 5 Mar 2026 | CSTL Castle BiosciencesDiagnostics & Labs | SEC FORM 4 Sold | $145K5,300 at $27.32 | filing |
| 3 Mar 2026filed 5 Mar 2026 | CSTL Castle BiosciencesDiagnostics & Labs | SEC FORM 4 Sold | $47K1,700 at $27.81 | filing |
News
Head to Head Analysis: Castle Biosciences (NASDAQ:CSTL) vs. Alignment Healthcare (NASDAQ:ALHC)CSTL · themarketsdaily.com · 15 Oct 2026Castle Biosciences (NASDAQ:CSTL) Insider Tobin Juvenal Sells 3,288 Shares of StockCSTL · themarketsdaily.com · 14 Oct 2026
0 headlines in the last 90 days name Frank Stokes; 2 articles from the last 14 days about the 1 company they traded most, at most three about any one of them.