Who
Tiffany Olson
Director
Company insider
Files Form 4 as: Director, MiMedx Group; Director, Castle Biosciences; Director, Biotelemetry; Director, Thermogenesis.
In numbers
- Trades disclosed
- 40
- Buys
- 2
- Sells
- 0
- Bought
- $50K
- Sold
- $0
- Companies
- 4
- Companies where not an officer
- 4
- First trade
- 9 Jan 2009
- Last trade
- 10 Jun 2026
- Last filed
- 12 Jun 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 | |
|---|---|---|---|---|
| 10 Jun 2026filed 12 Jun 2026 | MDXG MiMedx GroupMedical Devices | SEC FORM 4 Code A | $185K50,913 at $3.64 | filing |
| 10 Jun 2026filed 12 Jun 2026 | MDXG MiMedx GroupMedical Devices | SEC FORM 4 Code A | $185K50,913 at $3.64 | filing |
| 28 May 2026filed 1 Jun 2026 | CSTL Castle Biosciencesoption or derivative · Diagnostics & Labs | SEC FORM 4 Code A | —11,766 at $0.00 | filing |
| 28 May 2026filed 1 Jun 2026 | CSTL Castle Biosciencesoption or derivative · Diagnostics & Labs | SEC FORM 4 Code A | —11,766 at $0.00 | filing |
| 22 May 2026filed 27 May 2026 | CSTL Castle BiosciencesDiagnostics & Labs | SEC FORM 4 Code M | —13,667 | filing |
| 22 May 2026filed 27 May 2026 | CSTL Castle Biosciencesoption or derivative · Diagnostics & Labs | SEC FORM 4 Code M | —13,667 at $0.00 | filing |
| 22 May 2026filed 27 May 2026 | CSTL Castle Biosciencesoption or derivative · Diagnostics & Labs | SEC FORM 4 Code M | —13,667 at $0.00 | filing |
| 22 May 2026filed 27 May 2026 | CSTL Castle BiosciencesDiagnostics & Labs | SEC FORM 4 Code M | —13,667 | filing |
| 18 Jun 2025filed 23 Jun 2025 | MDXG MiMedx GroupMedical Devices | SEC FORM 4 Code A | $185K28,609 at $6.47 | filing |
| 22 May 2025filed 23 May 2025 | CSTL Castle Biosciencesoption or derivative · Diagnostics & Labs | SEC FORM 4 Code A | —13,667 at $0.00 | filing |
| 21 May 2025filed 23 May 2025 | CSTL Castle Biosciencesoption or derivative · Diagnostics & Labs | SEC FORM 4 Code M | —8,673 at $0.00 | filing |
| 21 May 2025filed 23 May 2025 | CSTL Castle BiosciencesDiagnostics & Labs | SEC FORM 4 Code M | —8,673 | filing |
| 1 Jul 2024filed 3 Jul 2024 | CSTL Castle Biosciencesoption or derivative · Diagnostics & Labs | SEC FORM 4 Code A | —830 at $0.00 | filing |
| 1 Jul 2024filed 3 Jul 2024 | CSTL Castle Biosciencesoption or derivative · Diagnostics & Labs | SEC FORM 4 Code M | —830 at $0.00 | filing |
| 1 Jul 2024filed 3 Jul 2024 | CSTL Castle Biosciencesoption or derivative · Diagnostics & Labs | SEC FORM 4 Code A | —3,379 at $0.00 | filing |
| 1 Jul 2024filed 3 Jul 2024 | CSTL Castle BiosciencesDiagnostics & Labs | SEC FORM 4 Code M | —830 | filing |
| 5 Jun 2024filed 6 Jun 2024 | MDXG MiMedx GroupMedical Devices | SEC FORM 4 Code A | $210K28,988 at $7.26 | filing |
| 25 May 2024filed 29 May 2024 | CSTL Castle Biosciencesoption or derivative · Diagnostics & Labs | SEC FORM 4 Code M | —8,636 at $0.00 | filing |
| 25 May 2024filed 29 May 2024 | CSTL Castle BiosciencesDiagnostics & Labs | SEC FORM 4 Code M | —8,636 | filing |
| 23 May 2024filed 28 May 2024 | CSTL Castle Biosciencesoption or derivative · Diagnostics & Labs | SEC FORM 4 Code A | —8,673 at $0.00 | 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 Tiffany Olson; 2 articles from the last 14 days about the 1 company they traded most, at most three about any one of them.