Summary
Updated Aug 31, 2026
Tobin W. Juvenal is Chief Commercial Officer of CASTLE BIOSCIENCES INC (CSTL). 14 SEC Form 4 filings on record going back to 2024, most recently on 27 August 2026. Most recent open-market trade: sold $317K of CSTL on 27 August 2026. Lifetime open-market sales: $1.93M.
Recent Transactions
20Every recent SEC Form 4 transaction Tobin W. Juvenal has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Tobin W. Juvenal go back to 2024: 14 primary Form 4 filings, an average of 4.7 per year. 19 recorded transactions carry a Rule 10b5-1 flag, meaning they were pre-scheduled under a written trading plan rather than discretionary.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Tobin W. Juvenal files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- Derek J. Maetzold - $7.65M of CSTL open-market activity in the last 12 months
- Kristen M. Oelschlager - $2.46M of CSTL open-market activity in the last 12 months
- Frank Stokes - $1.29M of CSTL open-market activity in the last 12 months
- G. Bradley Cole - $211K of CSTL open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is Tobin W. Juvenal?
Tobin W. Juvenal is a corporate insider, tracked as Chief Commercial Officer of CASTLE BIOSCIENCES INC (CSTL). InsiderAlpha holds 14 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Tobin W. Juvenal submitted recently?
4 primary Form 4 filings in the last 90 days, covering 1 company.
Has Tobin W. Juvenal been buying or selling stock?
Recorded transactions: 0 open-market purchases and 13 open-market sales ($1.93M) across all tracked filings.
Where can I see all of Tobin W. Juvenal's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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