Castle Biosciences (CSTL) Insider Trading & Ownership $18.57 -0.62 (-3.23%) Closing price 04/4/2025 04:00 PM EasternExtended Trading$18.58 +0.00 (+0.03%) As of 04/4/2025 05:55 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 Polygon.io. Learn more. Add Compare Share Share Insider Trades Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Castle Biosciences (NASDAQ:CSTL) Insider Buying and Selling ActivityCurrentInsider OwnershipPercentage7.20%Number OfInsiders Buying(Last 12 Months)0Number OfInsiders Selling(Last 12 Months)5Amount OfInsider Selling(Last 12 Months)$3.77 M Get CSTL Insider Trade Alerts Want to know when executives and insiders are buying or selling Castle Biosciences stock? 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Email Address CSTL Insider Buying and Selling by Quarter Remove Ads Castle Biosciences Insider and Congressional Trades History Insiders and Members of Congress Insiders Only Members of Congress Only Transaction Type Custom Range 1 Month 3 Months 6 Months Year-to-Date 1 Year 2 Years 3 Years Time Frame * Start Date * End Date Export to Excel Transaction DateNameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionDetails3/26/2025Derek J MaetzoldInsiderSell1,236$20.30$25,090.80 3/10/2025Derek J MaetzoldInsiderSell2,130$19.52$41,577.60 3/7/2025Derek J MaetzoldInsiderSell22,639$20.12$455,496.68 2/5/2025Daniel BradburyDirectorSell7,867$28.17$221,613.39 1/13/2025Derek J MaetzoldInsiderSell986$28.03$27,637.58 1/6/2025Daniel BradburyDirectorSell7,867$29.14$229,244.38 1/6/2025Derek J MaetzoldInsiderSell2,715$29.62$80,418.30 12/17/2024Derek J MaetzoldInsiderSell9,364$28.34$265,375.76 12/5/2024Derek J MaetzoldInsiderSell1,972$31.35$61,822.20 11/15/2024Frank StokesCFOSell6,923$29.93$207,205.39 Get Insider Trades Delivered To Your InboxEnter your email address below to receive a concise daily summary of insider buying activity, insider selling activity and changes in hedge fund holdings. 11/12/2024Derek J MaetzoldInsiderSell1,972$34.15$67,343.80 11/5/2024Tobin W JuvenalInsiderSell3,507$35.56$124,708.92 10/14/2024Derek J MaetzoldInsiderSell1,972$32.27$63,636.44 10/8/2024Derek J MaetzoldInsiderSell986$30.27$29,846.22 10/7/2024Daniel BradburyDirectorSell7,867$29.44$231,604.48 10/4/2024Derek J MaetzoldInsiderSell986$28.73$28,327.78 8/12/2024Daniel BradburyDirectorSell7,883$26.65$210,081.95 8/7/2024Frank StokesCFOSell10,000$25.70$257,000.00 8/1/2024Kristen M OelschlagerCOOSell12,989$23.06$299,526.34 7/29/2024Kristen M OelschlagerCOOSell2,793$22.06$61,613.58 6/3/2024Derek J MaetzoldInsiderSell2,368$23.40$55,411.20 5/6/2024Daniel BradburyDirectorSell23,323$24.64$574,678.72 5/6/2024Derek J MaetzoldInsiderSell2,368$24.72$58,536.96 4/23/2024Derek J MaetzoldInsiderSell421$20.11$8,466.31 4/12/2024Derek J MaetzoldInsiderSell1,947$20.35$39,621.45 4/8/2024Daniel BradburyDirectorSell2,400$20.45$49,080.00 (Data available from 1/1/2013 forward) CSTL Insider Trading Activity - Frequently Asked Questions Who is on Castle Biosciences's Insider Roster? The list of insiders at Castle Biosciences includes Daniel Bradbury, Derek J Maetzold, Ellen Goldberg, Frank Stokes, Kristen M Oelschlager, Tiffany Olson, and Tobin W Juvenal. Learn more on insiders at CSTL. What percentage of Castle Biosciences stock is owned by insiders? 7.20% of Castle Biosciences stock is owned by insiders. Learn more on CSTL's insider holdings. Which Castle Biosciences insiders have been buying company stock? The following insider purchased CSTL shares in the last 24 months: Ellen Goldberg ($69,024.00). How much insider buying is happening at Castle Biosciences? Insiders have purchased a total of 4,800 CSTL shares in the last 24 months for a total of $69,024.00 bought. Which Castle Biosciences insiders have been selling company stock? The following insiders have sold CSTL shares in the last 24 months: Daniel Bradbury ($5,228,413.11), Derek J Maetzold ($2,697,008.06), Frank Stokes ($464,205.39), Kristen M Oelschlager ($361,139.92), and Tobin W Juvenal ($124,708.92). How much insider selling is happening at Castle Biosciences? Insiders have sold a total of 393,793 Castle Biosciences shares in the last 24 months for a total of $8,875,475.40 sold. Castle Biosciences Key ExecutivesMr. Derek J. Maetzold (Age 62)Founder, CEO, President & Director Compensation: $1.45M10 recent tradesMr. Frank Stokes (Age 53)CFO & Treasurer Compensation: $849.36k1 recent tradesMs. Kristen M. Oelschlager R.N. (Age 56)Chief Operating Officer Compensation: $782.7kMr. Tobin W. Juvenal (Age 64)Chief Commercial Officer Compensation: $782.7k1 recent tradesCamilla ZuckeroVice President of Investor Relations & Corporate AffairsMs. Alice Bahner IzzoSenior Vice President of MarketingMr. Kevin DomanVice President of SalesMs. Keli GreenbergVP of Human Resources & Executive Director of Human ResourcesDr. Robert W. Cook Ph.D. (Age 52)Senior Vice President of Research & Development Dr. Matthew Goldberg M.D.Senior Vice President of Medical More Insider Trading Tools from MarketBeat Related Companies PGNY Insider Transactions ADUS Insider Transactions AGL Insider Transactions PACS Insider Transactions AHCO Insider Transactions NHC Insider Transactions TDOC Insider Transactions VRDN Insider Transactions AVAH Insider Transactions CDNA Insider Transactions Insider Tracking Tools CEO Purchases/Sales CFO Purchases/Sales Top Insider Buying Stocks Top Insider Selling Stocks Insider Trades Screener Insider Trades Newsletter Congressional Stock Trades Insider Trading By Country U.S. Insider Trading Activity Canadian Insider Trading Activity U.K. Insider Trading Activity Australia Insider Trading Activity Latest Articles Casey’s General Stores Insider Buys Shares of This Must-Own StockNVIDIA Insiders Sell: This Is What It Means for the Market Top 3 Insider Stock Buys in March—Are They Still Good in April?Grocery Outlet Insider and Institutional Buyers Signal BottomSentinelOne Insider Selling? 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