Transaction · 0001628280-26-059272

Juvenal Tobin W

Juvenal Tobin W, CCO, reported an open-market or private sale at CASTLE BIOSCIENCES INC involving 9050.000000 shares for an estimated $317112.00. Reported holdings after the transaction were 66914.000000 shares. The stored filing text includes a detected 10b5-1 reference.

Open-market sellSEC transaction code SCCO
CSTLCASTLE BIOSCIENCES INC
Filing timeAug 27
Trade dateAug 25, 2026
Filing · SECView on SEC
InsiderProfile

Price performance since filing

Close on the filing date, the pre-filing context, and the forward return at standard windows
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CSTL price since this filing

30 days of pre-filing context and vertical markers at the filing date plus 7d / 30d / 90d / 180d / 1y afterwards
CSTL since 2026-08-27Filed 8 days ago · 30 days of pre-filing context shaded
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Filing datePost-filing windows (7d, 30d, 90d, 180d, 1y)30 days of pre-filing context

Transaction facts

Stored Form 4 columns with their raw values

Non-derivative
Type
Sell
Code S
Identifier
0001628280-26-059272
Common Stock
Transaction date
Aug 25, 2026
Filed Aug 27, 2026, 08:38 PM · 2d delay
Shares
9.05k sh
$3.50k per share
Estimated value
-$31.7M
Computed from shares × price
Holdings after
66.9k sh
Direct

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $10.0MLarge $100M
Cluster Selling Direct Ownership Repeat Seller 10b5-1 Detected
0score
Filing-only score

0

Compact filing score computed from stored Form 4 facts. Version v1.

Neutral filing signal

This filing is broadly neutral on the filing-only scale. The Form 4 facts do not strongly tilt positive or negative.

Reported relationships & other filings

Form 4 relationship flags and nearby filing context

Reported roles

Chief Commercial Officer

Officer YesDirector No10% NoOther No
Footnotes & amended
  1. F1

    This transaction was made pursuant to a Rule 10b5-1 plan adopted by the Reporting Person on December 10, 2025.

  2. F2

    This transaction was executed in multiple trades at prices ranging from $35.00 to $35.14, inclusive. The price reported above reflects the weighted-average sale price. The Reporting Person hereby unde…

Original filing · 0001628280-26-059272
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