Transaction · 0001628280-26-057644

Stokes Frank

Stokes Frank, CFO, reported an open-market or private sale at CASTLE BIOSCIENCES INC involving 24908.000000 shares for an estimated $741511.16. Reported holdings after the transaction were 35177.000000 shares. A 10b5-1 reference was not detected in the stored filing text.

Open-market sellSEC transaction code SCFO
CSTLCASTLE BIOSCIENCES INC
Filing timeAug 18
Trade dateAug 14, 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
Price at filing
$29.03
Pre-filing
1mo ago -17.3%1w ago +10.3%1d ago +5.2%
Returns since
7d +18.4%30d +15.2%90d +15.2%180d +15.2%1y +15.2%

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 2026-08-18Filed 17 days ago · 30 days of pre-filing context shaded
Loading…
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
0001628280-26-057644
Common Stock
Transaction date
Aug 14, 2026
Filed Aug 18, 2026, 08:10 PM · 4d delay
Shares
24.9k sh
$2.97k per share
Estimated value
-$74.1M
Computed from shares × price
Holdings after
35.1k sh
Direct

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $10.0MLarge $100M
Direct Ownership Large Holdings Reduction
+6score
Filing-only score

+6

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

Positive filing signal

This filing has a modest positive filing-only score. Treat it as a useful flag for review, not as a buy signal.

Reported relationships & other filings

Form 4 relationship flags and nearby filing context

Reported roles

Chief Financial Officer

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

    This transaction was executed in multiple trades at prices ranging from $29.71 to $29.97, inclusive. The price reported above reflects the weighted-average sale price. The Reporting Person hereby unde…

Original filing · 0001628280-26-057644
Related transactions

0 other filings

Same reporting owner
Recent company activity

0 recent txs

CSTL