Company Insider Tape

Castle Biosciences Inc insider transactions

Executive and director filing history, acquisition and disposal balance, executive concentration, cadence, and stored market context.

Symbol CSTL Latest filing 14 Jul 2026

Company Read

Net disposal

CSTL has 80 stored insider filings. Acquisitions account for 30.0% of classified filings and disposals account for 70.0%. The largest stored filing is $199.7K from OELSCHLAGER, KRISTEN M.

Latest filing 14 Jul 2026most recent stored row
Largest filing $199.7Kreported transaction value
Total filings 80stored transaction rows
Acquisition value $87.7K24 acquisitions
Disposal value $1.3M56 disposals
Net value $-1.2Macquisitions minus disposals

Filing cadence

Last 12 active months
Apr 2026 6
May 2026 45
Jun 2026 15
Jul 2026 14

Acquisitions 30.0% · Disposals 70.0%

Apr 2026 $85.1K
May 2026 $320.7K
Jun 2026 $450.7K
Jul 2026 $521.0K

Executive concentration

By filing count
MAETZOLD, DEREK J Director, Pres. & Chief Exec. Officer · 54 filings
OELSCHLAGER, KRISTEN M Chief Operating Officer · 3 filings
COLE, G BRADLEY Director · 3 filings
COTTON, RODNEY Director · 3 filings
GOLDBERG, ELLEN Director · 3 filings
HARRISON, MILES Director · 3 filings
OLSON, TIFFANY Director · 3 filings
CAPLE, KIM Director · 3 filings

Market Context

CSTL weekly market snapshot

Week 31 Jul 2026
Latest close 28.00 USDstored weekly close
1-week move +13.4%latest weekly bar
13-week move +16.1%medium-term context
Relative Strength -7.7Sharemaestro indicator
Fair value gap +16.4%price vs fair value
Trend signal 0smoothed trend state

Transaction History

Latest insider filings for CSTL

Showing 61-80 of 80
Date 20 May 2026
Insider MAETZOLD, DEREK JDirector, Pres. & Chief Exec. Officer
Side Disposal
Shares 130
Price 20.00
Value 2600
Security Common Stock
Date 20 May 2026
Insider MAETZOLD, DEREK JDirector, Pres. & Chief Exec. Officer
Side Disposal
Shares 66
Price 20.00
Value 1320
Security Common Stock
Date 20 May 2026
Insider MAETZOLD, DEREK JDirector, Pres. & Chief Exec. Officer
Side Acquisition
Shares 130
Price 2.39
Value 311
Security Common Stock
Date 20 May 2026
Insider MAETZOLD, DEREK JDirector, Pres. & Chief Exec. Officer
Side Disposal
Shares 130
Price 0.00
Value 0
Security Stock option (right to buy)
Date 7 May 2026
Insider MAETZOLD, DEREK JDirector, Pres. & Chief Exec. Officer
Side Disposal
Shares 5308
Price 22.08
Value 117201
Security Common Stock
Date 7 May 2026
Insider MAETZOLD, DEREK JDirector, Pres. & Chief Exec. Officer
Side Disposal
Shares 1159
Price 22.08
Value 25591
Security Common Stock
Date 7 May 2026
Insider MAETZOLD, DEREK JDirector, Pres. & Chief Exec. Officer
Side Disposal
Shares 985
Price 22.08
Value 21749
Security Common Stock
Date 7 May 2026
Insider MAETZOLD, DEREK JDirector, Pres. & Chief Exec. Officer
Side Disposal
Shares 906
Price 22.59
Value 20462
Security Common Stock
Date 7 May 2026
Insider MAETZOLD, DEREK JDirector, Pres. & Chief Exec. Officer
Side Acquisition
Shares 6214
Price 2.39
Value 14851
Security Common Stock
Date 7 May 2026
Insider MAETZOLD, DEREK JDirector, Pres. & Chief Exec. Officer
Side Disposal
Shares 237
Price 22.08
Value 5233
Security Common Stock
Date 7 May 2026
Insider MAETZOLD, DEREK JDirector, Pres. & Chief Exec. Officer
Side Disposal
Shares 198
Price 22.59
Value 4472
Security Common Stock
Date 7 May 2026
Insider MAETZOLD, DEREK JDirector, Pres. & Chief Exec. Officer
Side Disposal
Shares 168
Price 22.59
Value 3794
Security Common Stock
Date 7 May 2026
Insider MAETZOLD, DEREK JDirector, Pres. & Chief Exec. Officer
Side Disposal
Shares 41
Price 22.59
Value 926
Security Common Stock
Date 7 May 2026
Insider MAETZOLD, DEREK JDirector, Pres. & Chief Exec. Officer
Side Disposal
Shares 6214
Price 0.00
Value 0
Security Stock option (right to buy)
Date 21 Apr 2026
Insider MAETZOLD, DEREK JDirector, Pres. & Chief Exec. Officer
Side Disposal
Shares 1357
Price 25.10
Value 34058
Security Common Stock
Date 21 Apr 2026
Insider MAETZOLD, DEREK JDirector, Pres. & Chief Exec. Officer
Side Disposal
Shares 1153
Price 25.10
Value 28938
Security Common Stock
Date 21 Apr 2026
Insider MAETZOLD, DEREK JDirector, Pres. & Chief Exec. Officer
Side Disposal
Shares 550
Price 25.10
Value 13804
Security Common Stock
Date 21 Apr 2026
Insider MAETZOLD, DEREK JDirector, Pres. & Chief Exec. Officer
Side Disposal
Shares 278
Price 25.10
Value 6977
Security Common Stock
Date 21 Apr 2026
Insider MAETZOLD, DEREK JDirector, Pres. & Chief Exec. Officer
Side Acquisition
Shares 550
Price 2.39
Value 1315
Security Common Stock
Date 21 Apr 2026
Insider MAETZOLD, DEREK JDirector, Pres. & Chief Exec. Officer
Side Disposal
Shares 550
Price 0.00
Value 0
Security Stock option (right to buy)