CSTL — Castle Biosciences, Inc. stock price, charts and financials

QT76Castle Biosciences, Inc.

Castle Biosciences, Inc. (NASDAQ: CSTL) is a Healthcare company in the Medical - Diagnostics & Research industry. QuoTrend tracks its price, financials, earnings, analyst ratings and insider trades.

Latest market price
36.78
+1.30+3.66%
CSTLQT76Castle Biosciences, Inc.·NASDAQ
36.78+3.66%
News
Up 3.7% — New Decision Modeling Study Demonstrates TissueCypher® Significantly Improves Risk-Aligned Management for Patients with Barrett's Esophagus (prnewswire.com).
Medium confidence
TA
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Signal & projected range
Insider open-market saleHistorical pattern — not a prediction
Recent priceDays this stock last showed the setupRange of past outcomes (±1σ)
Horizon
0%Past 3 monthsToday
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Snapshot
Index-P/E-EPS (ttm)-0.66Insider Own2.43%Shs Outstand30.55MPerf Week13.80%
Market Cap1.12BForward P/E-EPS next Y-0.99Insider Trans-37.23%Shs Float26.99MPerf Month26.70%
Enterprise Value891.61MPEG-EPS next Q-0.38Inst Own94.13%Short Float7.32%Perf Quarter81.63%
Income-20.00MP/S3.14EPS this Y-92.76%Inst Trans-Short Ratio4.92Perf Half Y43.56%
Sales358.00MP/B2.39EPS next Y22.27%ROA-3.46%Short Interest1.98MPerf YTD-5.45%
Book/sh15.38P/C4.21EPS next 5Y-ROE-4.15%52W High44.28 -16.94%Perf Year69.10%
Cash/sh8.74P/FCF-EPS past 3/5Y-ROIC-6.31%52W Low17.72 107.56%Perf 3Y101.53%
Dividend Est.-EV/EBITDA-Sales past 3/5Y35.92% 40.42%Gross Margin77.26%Volatility4.79% 4.99%Perf 5Y-51.50%
Dividend TTM-EV/Sales2.49EPS Y/Y TTM-206.45%Oper. Margin-8.99%ATR (14)1.58Perf 10Y-
Dividend Ex-Date-Quick Ratio5.85Sales Y/Y TTM7.83%Profit Margin-5.43%RSI (14)72.42Recom2.00
Dividend Gr. 3/5Y-Current Ratio6.04EPS Q/Q-146.67%SMA209.17%Beta0.96Target Price39.00
Payout0.00%Debt/Eq0.08Sales Q/Q20.93%SMA5023.13%Rel Volume0.91Prev Close35.48
Employees1,002LT Debt/Eq0.08EarningsNov 02SMA20025.64%Avg Volume401.54KPrice36.78
IPO DateJul 25, 2019Option/ShortYes / YesEPS/Sales Surpr.82.80% 20.07%Net Debt/EBITDA7.87Volume364,629Change3.66%
Analyst Ratings
DateActionAnalystRatingTarget
Aug-03-26ReiteratedBTIGBuy$50$44
Jul-31-26ReiteratedRobert W. Baird$43$36
Jun-24-26InitiatedRoth CapitalBuy$40
May-29-26ReiteratedKeyBancOverweight$50$35
Apr-20-26ReiteratedCanaccord GenuityBuy$50$40
Jan-29-26ReiteratedKeyBancOverweight$36$50
Jan-26-26ReiteratedGuggenheimBuy$43$47
Jan-12-26ReiteratedLake StreetBuy$52
Jan-05-26ReiteratedGuggenheimBuy$30$43
Dec-22-25ReiteratedCanaccord GenuityBuy$42$50
Latest News· Times ET
Sep-15-26
Sep-09-26
Sep-08-26
Aug-28-26
Aug-25-26
Aug-20-26
Aug-17-26
Aug-12-26
Aug-03-26
Jul-30-26
Jul-22-26
Company

Castle Biosciences, Inc. functions as a commercial-stage diagnostics firm, with its primary objective being the provision of both diagnostic and prognostic testing services, specifically targeting various dermatological cancers. Their flagship product, DecisionDx-Melanoma, represents an advanced multi-gene expression profile (GEP) assay engineered to assess the probability of metastasis in patients afflicted with invasive cutaneous melanoma. In addition to their leading solution, the company has created several other specialized, proprietary tests. Among these is DecisionDx-UM, a GEP test tailored to forecast the risk of metastasis for individuals with uveal melanoma, a less common malignancy of the eye. Another key offering is DecisionDx-SCC, a distinctive 40-gene expression profile test that utilizes a patient's unique tumor biology to predict their specific risk of squamous cell carcinoma metastasis, particularly for those presenting with recognized risk factors. Moreover, they offer DecisionDx DiffDx-Melanoma and myPath Melanoma, both proprietary GEP tests employed to assist in the accurate diagnosis of ambiguous pigmented lesions. These specialized testing services are provided by Castle Biosciences to patients predominantly through their healthcare providers. The organization commenced operations in 2007 and maintains its corporate headquarters in Friendswood, Texas.

Ownership
Total institutional ownership94.13%

Per-holder 13F data hasn't been ingested for this ticker yet.

Financial Statements
DataTimeframe
Line Item (USD, M)
TTM
FY 2025
12/31/2025
FY 2024
12/31/2024
FY 2023
12/31/2023
FY 2022
12/31/2022
FY 2021
12/31/2021
FY 2020
12/31/2020
FY 2019
12/31/2019
FY 2018
12/31/2018
Total Revenue358344332
Cost of Goods Sold Incl. D&A827160
Gross Profit276273272
Selling, General and Administrative Excl. Other244229200
Research and Development565252
Other Operating Expense93511
Operating Income-32-439
Interest Expense001
Unusual Expense
Non-Operating Income (Expense)131313
Net Income Before Taxes-19-3022
Income Taxes0-53
Consolidated Net Income-20-2418
Net Income From Continuing Operations-20-2418
Net Income-20-2418
EPS (Recurring)-0.66-0.830.66
EPS (Basic, Before Extraordinaries)-0.66-0.830.66
EPS (Diluted)-0.66-0.830.62
EBITDA-31138
Other After Tax Adjustments
Stock Option Compensation Expense
Price To Earnings Ratio42.98
Price To Sales Ratio3.083.282.25
Gross Margin77.0979.3681.93
Operating Margin-8.94-12.502.71
Net Margin-5.59-6.985.42
Shares Outstanding302928
Market Capitalization1,1031,128746
Operating Lease Expense
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Insider Trading Volume
$47.30$38.07$28.84$19.62$10.39 Close Price0.00M1.22M2.43M3.65M4.86MUSD Trades VolumeSepOctNovDec2026FebMarAprMayJunJulAugSep
Insider Trading
InsiderRelationshipDateTransactionCost#SharesValue ($)#Shares TotalSEC Form 4
Juvenal Tobin WChief Commercial OfficerSep 15 '26Sale35.143,294115,75858,584Sep 16
Juvenal Tobin WChief Commercial OfficerSep 14 '26Sale32.323,306106,86361,878Sep 16
MAETZOLD DEREK JPres. & Chief Exec. OfficerSep 11 '26Sale32.0214,518464,87012,268Sep 15
MAETZOLD DEREK JPres. & Chief Exec. OfficerSep 11 '26Option Exercise2.398,58420,51630,063Sep 15
Oelschlager Kristen MChief Operating OfficerSep 01 '26Option Exercise3.384,15214,03417,508Sep 03
Oelschlager Kristen MChief Operating OfficerSep 01 '26Sale33.394,152138,64313,356Sep 03
Juvenal Tobin WChief Commercial OfficerAug 31 '26Sale32.811,73056,76165,184Sep 02
MAETZOLD DEREK JPres. & Chief Exec. OfficerAug 28 '26Option Exercise2.3912,42829,70333,907Sep 01
MAETZOLD DEREK JPres. & Chief Exec. OfficerAug 28 '26Sale33.2017,726588,44811,256Sep 01
Juvenal Tobin WChief Commercial OfficerAug 25 '26Sale35.049,050317,11266,914Aug 27
Oelschlager Kristen MChief Operating OfficerAug 25 '26Sale34.4212,384426,27672,649Aug 26
Oelschlager Kristen MChief Operating OfficerAug 24 '26Sale33.6912,218411,58885,033Aug 26
Juvenal Tobin WChief Commercial OfficerAug 17 '26Sale29.591,73051,19175,964Aug 19
Stokes FrankChief Financial OfficerAug 14 '26Sale29.7724,908741,51135,177Aug 18
MAETZOLD DEREK JPres. & Chief Exec. OfficerAug 14 '26Option Exercise2.391,1002,62922,579Aug 18
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