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Castle Biosciences Inc Planned Sales
Before an insider at Castle Biosciences Inc can sell restricted stock they have to file notice of it. This is that notice — the leading edge of the insider trading feed, filed days before the sale it describes.
CSTL insider trades →Notices on file
3
Insiders
2
Shares noticed
71.2K
permission to sell, not sales
Estimated value
$2.4M
as estimated on filing
Largest notices first
Value is the filer's own estimate of what the sale would raise, at the time they filed.
| Seller | Est. value |
|---|---|
| Maetzold DerekOfficershares were a gift2026-10-0529K sh0.09% | $1.1M |
| Maetzold DerekOfficershares were a gift2026-09-1129K sh0.09% | $938K |
| Juvenal TobinChief Commercial Officer2026-09-1413.2K sh0.04% | $440.6K |
Source: SEC Form 144 notices, via EDGAR. A notice is permission to sell, not a completed sale — it is often used only in part, or not at all, so none of this is volume and none of it should be added to the insider trading feed. Value is the filer's estimate on the day they filed.
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