Free Trial
Your $100 Credit Is Waiting! Get MarketBeat All Access Today
Lock In $149
Claim MarketBeat All Access Sale Promotion

Castle Biosciences (CSTL) Insider Trading & Ownership

Castle Biosciences logo
$20.03 +0.83 (+4.32%)
Closing price 04:00 PM Eastern
Extended Trading
$20.38 +0.35 (+1.75%)
As of 06:49 PM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more.

Castle Biosciences (NASDAQ:CSTL) Insider Buying and Selling Activity

Current
Insider Ownership
Percentage
6.10%
Number Of
Insiders Buying
(Last 12 Months)
0
Number Of
Insiders Selling
(Last 12 Months)
5
Amount Of
Insider Selling
(Last 12 Months)
$4.37M
Get CSTL Insider Trade Alerts

Want to know when executives and insiders are buying or selling Castle Biosciences stock? Sign up for InsiderTrades.com's daily newsletter to get the latest insider transactions delivered to your inbox daily.

SMS is currently available in Australia, Belgium, Canada, France, Germany, Ireland, Italy, New Zealand, the Netherlands, Singapore, South Africa, Spain, Switzerland, the United Kingdom, and the United States. By entering your phone number and clicking the sign-up button, you agree to receive periodic text messages from MarketBeat at the phone number you submitted, including texts that may be sent using an automatic telephone dialing system. Message and data rates may apply. Message frequency will vary. Messages will consist of stock alerts, news stories, and partner advertisements/offers. Consent is not a condition of the purchase of any goods or services. Text HELP for help/customer support. Unsubscribe at any time by replying "STOP" to any text message that you receive from MarketBeat or by visiting our mailing preferences page. Read our full terms of service and privacy policy.

CSTL Insider Buying and Selling by Quarter

Castle Biosciences Insider and Congressional Trades History

Transaction DateInsiderBuy/SellNumber of SharesAverage Share PriceTotal TransactionDetails
5/7/2026Sell6,214$22.15$137,640.10  
5/7/2026Sell3,622$22.15$80,227.30  
4/21/2026Sell550$25.10$13,805.00  
4/21/2026Sell3,622$25.10$90,912.20  
4/6/2026Sell6,214$25.03$155,536.42  
4/6/2026Sell3,622$25.03$90,658.66  
3/18/2026Sell650$25.39$16,503.50  
3/17/2026Sell18,650$25.93$483,594.50  
3/12/2026Sell20,863$25.24$526,582.12  
3/5/2026Sell6,001$27.98$167,907.98  
A 17-year investing experiment investigated in Dublin (Ad)

Porter Stansberry flew the Porter and Co. team 3,300 miles to Dublin to investigate a 17-year investing experiment called Project Prophet - and documented everything on film. Rooted in the laws of physics, this quantitative approach challenges conventional wealth-building wisdom. With 17 years of verified data behind it, Porter calls it unlike anything he has seen in nearly 30 years in the business.tc pixel

Watch the full investigation and decide for yourself
3/5/2026Sell7,403$28.47$210,763.41  
3/3/2026Sell7,000$27.44$192,080.00  
2/4/2026Sell817$37.99$31,037.83  
2/3/2026Sell3,200$39.91$127,712.00  
1/20/2026Sell4,017$40.01$160,720.17  
1/6/2026Sell1,339$40.10$53,693.90  
1/5/2026Sell2,678$38.09$102,005.02  
12/22/2025Sell830$40.35$33,490.50  
12/17/2025Sell509$40.04$20,380.36  
12/17/2025Sell14,888$39.31$585,247.28  
12/4/2025Sell1,339$40.03$53,600.17  
11/25/2025Sell5,115$40.05$204,855.75  
11/20/2025Sell4,693$35.58$166,976.94  
11/5/2025Sell2,678$31.85$85,294.30  
11/4/2025Sell6,695$30.44$203,795.80  
10/31/2025Sell12,678$25.04$317,457.12  
10/20/2025Sell1,339$22.44$30,047.16  
9/17/2025Sell1,339$21.97$29,417.83  
(Data available from 1/1/2013 forward)

CSTL Insider Trading Activity - Frequently Asked Questions

The list of insiders at Castle Biosciences includes Daniel Bradbury, Derek J Maetzold, Ellen Goldberg, Frank Stokes, G Bradley Cole, Kristen M Oelschlager, and Tobin W Juvenal. Learn more on insiders at CSTL.

6.10% of Castle Biosciences stock is owned by insiders. Learn more on CSTL's insider holdings.

The following insiders have sold CSTL shares in the last 24 months: Daniel Bradbury ($892,544.20), Derek J Maetzold ($3,437,777.94), Frank Stokes ($824,193.37), G Bradley Cole ($210,763.41), Kristen M Oelschlager ($1,263,844.32), and Tobin W Juvenal ($818,267.98).

Insiders have sold a total of 267,036 Castle Biosciences shares in the last 24 months for a total of $7,447,391.22 sold.



This page (NASDAQ:CSTL) was last updated on 5/20/2026 by MarketBeat.com Staff.
From Our Partners