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 1-30 of 80
Date 14 Jul 2026
Insider MAETZOLD, DEREK JDirector, Pres. & Chief Exec. Officer
Side Disposal
Shares 1357
Price 22.92
Value 31102
Security Common Stock
Date 14 Jul 2026
Insider MAETZOLD, DEREK JDirector, Pres. & Chief Exec. Officer
Side Disposal
Shares 1153
Price 22.92
Value 26427
Security Common Stock
Date 14 Jul 2026
Insider MAETZOLD, DEREK JDirector, Pres. & Chief Exec. Officer
Side Disposal
Shares 550
Price 22.92
Value 12606
Security Common Stock
Date 14 Jul 2026
Insider MAETZOLD, DEREK JDirector, Pres. & Chief Exec. Officer
Side Disposal
Shares 278
Price 22.92
Value 6372
Security Common Stock
Date 14 Jul 2026
Insider MAETZOLD, DEREK JDirector, Pres. & Chief Exec. Officer
Side Acquisition
Shares 550
Price 2.39
Value 1315
Security Common Stock
Date 14 Jul 2026
Insider MAETZOLD, DEREK JDirector, Pres. & Chief Exec. Officer
Side Disposal
Shares 550
Price 0.00
Value 0
Security Stock option (right to buy)
Date 1 Jul 2026
Insider OELSCHLAGER, KRISTEN MChief Operating Officer
Side Disposal
Shares 8186
Price 24.40
Value 199738
Security Common Stock
Date 1 Jul 2026
Insider MAETZOLD, DEREK JDirector, Pres. & Chief Exec. Officer
Side Disposal
Shares 6214
Price 24.29
Value 150938
Security Common Stock
Date 1 Jul 2026
Insider MAETZOLD, DEREK JDirector, Pres. & Chief Exec. Officer
Side Disposal
Shares 1357
Price 24.29
Value 32962
Security Common Stock
Date 1 Jul 2026
Insider MAETZOLD, DEREK JDirector, Pres. & Chief Exec. Officer
Side Disposal
Shares 1153
Price 24.29
Value 28006
Security Common Stock
Date 1 Jul 2026
Insider MAETZOLD, DEREK JDirector, Pres. & Chief Exec. Officer
Side Acquisition
Shares 6214
Price 2.39
Value 14851
Security Common Stock
Date 1 Jul 2026
Insider OELSCHLAGER, KRISTEN MChief Operating Officer
Side Disposal
Shares 400
Price 24.78
Value 9912
Security Common Stock
Date 1 Jul 2026
Insider MAETZOLD, DEREK JDirector, Pres. & Chief Exec. Officer
Side Disposal
Shares 278
Price 24.29
Value 6753
Security Common Stock
Date 1 Jul 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 16 Jun 2026
Insider OELSCHLAGER, KRISTEN MChief Operating Officer
Side Disposal
Shares 8587
Price 20.71
Value 177837
Security Common Stock
Date 15 Jun 2026
Insider MAETZOLD, DEREK JDirector, Pres. & Chief Exec. Officer
Side Disposal
Shares 1357
Price 20.66
Value 28036
Security Common Stock
Date 15 Jun 2026
Insider MAETZOLD, DEREK JDirector, Pres. & Chief Exec. Officer
Side Disposal
Shares 1153
Price 20.66
Value 23821
Security Common Stock
Date 15 Jun 2026
Insider MAETZOLD, DEREK JDirector, Pres. & Chief Exec. Officer
Side Disposal
Shares 550
Price 20.66
Value 11363
Security Common Stock
Date 15 Jun 2026
Insider MAETZOLD, DEREK JDirector, Pres. & Chief Exec. Officer
Side Disposal
Shares 278
Price 20.66
Value 5743
Security Common Stock
Date 15 Jun 2026
Insider MAETZOLD, DEREK JDirector, Pres. & Chief Exec. Officer
Side Acquisition
Shares 550
Price 2.39
Value 1315
Security Common Stock
Date 15 Jun 2026
Insider MAETZOLD, DEREK JDirector, Pres. & Chief Exec. Officer
Side Disposal
Shares 550
Price 0.00
Value 0
Security Stock option (right to buy)
Date 1 Jun 2026
Insider MAETZOLD, DEREK JDirector, Pres. & Chief Exec. Officer
Side Disposal
Shares 6214
Price 20.86
Value 129605
Security Common Stock
Date 1 Jun 2026
Insider MAETZOLD, DEREK JDirector, Pres. & Chief Exec. Officer
Side Disposal
Shares 1357
Price 20.86
Value 28303
Security Common Stock
Date 1 Jun 2026
Insider MAETZOLD, DEREK JDirector, Pres. & Chief Exec. Officer
Side Disposal
Shares 1153
Price 20.86
Value 24048
Security Common Stock
Date 1 Jun 2026
Insider MAETZOLD, DEREK JDirector, Pres. & Chief Exec. Officer
Side Acquisition
Shares 6010
Price 2.39
Value 14364
Security Common Stock
Date 1 Jun 2026
Insider MAETZOLD, DEREK JDirector, Pres. & Chief Exec. Officer
Side Disposal
Shares 278
Price 20.86
Value 5798
Security Common Stock
Date 1 Jun 2026
Insider MAETZOLD, DEREK JDirector, Pres. & Chief Exec. Officer
Side Acquisition
Shares 204
Price 2.39
Value 488
Security Common Stock
Date 1 Jun 2026
Insider MAETZOLD, DEREK JDirector, Pres. & Chief Exec. Officer
Side Disposal
Shares 6010
Price 0.00
Value 0
Security Stock option (right to buy)
Date 1 Jun 2026
Insider MAETZOLD, DEREK JDirector, Pres. & Chief Exec. Officer
Side Disposal
Shares 204
Price 0.00
Value 0
Security Stock option (right to buy)
Date 28 May 2026
Insider BRADBURY, DANIELDirector
Side Acquisition
Shares 11766
Price 0.00
Value 0
Security Restricted Stock Units