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Castle Biosciences Stock Price, News & Analysis

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Welcome to our dedicated page for Castle Biosciences news (Ticker: CSTL), a resource for investors and traders seeking the latest updates and insights on Castle Biosciences stock.

Castle Biosciences, Inc. (Nasdaq: CSTL) is a diagnostics company focused on molecular tests that guide patient care in dermatologic and gastroenterological disease. The CSTL news feed highlights company announcements, clinical data, financial results and corporate updates that shape how investors and clinicians view its role in precision medicine.

Readers can follow news on Castle’s core test portfolio, including DecisionDx-Melanoma for cutaneous melanoma, TissueCypher Barrett’s Esophagus, DecisionDx-SCC for high-risk cutaneous squamous cell carcinoma, MyPath Melanoma and its suite of tests for uveal melanoma such as DecisionDx-UM, DecisionDx-PRAME and DecisionDx-UMSeq. Coverage also includes updates on AdvanceAD-Tx, the company’s gene expression profile test designed to guide systemic treatment decisions in moderate-to-severe atopic dermatitis.

In addition to product and clinical evidence updates, CSTL news items feature quarterly and annual financial results, test volume trends for core revenue drivers, and guidance ranges reported in earnings releases. Regulatory and corporate governance developments, such as bylaw amendments disclosed in Form 8-K filings, as well as participation in healthcare and investor conferences, are also common topics.

Because Castle Biosciences emphasizes rigorous clinical validation, many news releases center on new studies, meta-analyses and expert consensus papers that evaluate the performance of its tests in real-world and prospective cohorts. These articles provide insight into how DecisionDx-Melanoma, TissueCypher and other assays are being integrated into clinical decision-making.

For investors, clinicians and researchers tracking CSTL, this news page offers a centralized view of earnings announcements, product launches, reimbursement developments, clinical data presentations and corporate events related to Castle Biosciences’ molecular diagnostics business.

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Castle Biosciences (NASDAQ: CSTL) announced new study findings showing that its TissueCypher® Barrett’s Esophagus test can accurately predict progression to high-grade dysplasia (HGD) and esophageal adenocarcinoma (EAC) in patients with Barrett’s esophagus (BE). The study involved 154 patients and found that TissueCypher surpassed standard pathology, accurately identifying 71% of those who progressed, compared to 63% by pathologists. The test may help standardize care plans and improve management decisions for BE patients, reducing risks of missed diagnoses.

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Castle Biosciences has partnered with Research to Prevent Blindness to enhance research opportunities for medical students focused on ocular cancer. The initiative includes funding for a fellowship that allows students to dedicate a year to ocular cancer research, addressing conditions like uveal melanoma, which affects approximately 2,000 individuals annually in the U.S. The fellowship offers a $30,000 grant, facilitating significant research contributions in this underrepresented field.

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Castle Biosciences, Inc. (Nasdaq: CSTL) announced significant findings on its DecisionDx-SCC test at the 2022 ACMS Annual Meeting. This 40-gene expression profile test effectively risk-stratifies patients with cutaneous squamous cell carcinoma (SCC) by biologic risk of metastasis, supporting previous validation studies. In a multi-center study of 1,018 patients, the test demonstrated a statistically significant difference in metastasis-free survival across risk classes. The findings emphasize the test's potential to enhance clinical decision-making and personalize patient treatment.

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Castle Biosciences (NASDAQ: CSTL) announces its role as a national sponsor of The Sun Bus, a mobile clinic offering free skin checks and sun safety education. The initiative highlights skin cancer awareness, recognized as the most commonly diagnosed cancer in the U.S. In 2022, The Sun Bus will provide over 360 hours of services at more than 50 locations across various states, including Texas and Georgia. Castle's leadership emphasizes the importance of early detection and prevention in improving patient care.

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Castle Biosciences (CSTL) reported Q1 2022 revenues of $26.9 million, an 18% increase from Q1 2021. Adjusted revenues rose 50% to $26.3 million. Total test reports delivered surged 68% year-over-year to 8,627, driven by strong performance in their dermatology tests. The company is optimistic about its pipeline initiatives, which could add $1.9 billion to its U.S. total addressable market. However, they reported a net loss of $24.6 million, significantly higher than the prior year. Cash reserves stand at $309 million, and revenue guidance for the year has been raised to $118-123 million.

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Castle Biosciences (CSTL) announced a collaboration with Miss America 2020, Camille Schrier, to promote its IDgenetix® genetic testing for mental health treatment. The test aims to enhance treatment outcomes by tailoring medications based on genetic profiles. Schrier shared her personal experience, indicating a potential improvement in her medication efficacy through IDgenetix. A randomized controlled trial showed that patients using IDgenetix had more than 2.5 times better remission rates than those who did not undergo genetic testing. This initiative coincides with Mental Health Awareness Month.

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Castle Biosciences, Inc. (CSTL) is collaborating with the Melanoma Research Foundation and The Skin Cancer Foundation to support skin cancer research and advocacy during Skin Cancer Awareness Month in May. Skin cancer remains the most common cancer in the U.S., with an estimated one in five Americans developing it by age 70. Castle's efforts include sponsorship of educational events and fundraising activities to enhance awareness and treatment options. The company emphasizes its commitment to improving skin cancer patient outcomes through innovative diagnostic tests and partnerships.

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Castle Biosciences announced an expansion of its U.S. Federal Supply Schedule contract, effective April 15, 2022, to include its entire skin cancer test portfolio. This includes DecisionDx®-SCC, DecisionDx® DiffDx™-Melanoma, myPath® Melanoma, and DecisionDx®-CMSeq, alongside the already covered DecisionDx®-Melanoma. Veterans and families treated at Veterans Health Administration facilities will benefit from increased access to these tests, which aim to enhance skin cancer diagnosis and management.

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Castle Biosciences (CSTL) announced a peer-reviewed study published in Clinical Gastroenterology and Hepatology, demonstrating that their TissueCypher test significantly enhances predictions for patients with Barrett's esophagus at risk of developing esophageal cancer.

The study included data from 552 patients, revealing that 51.8% of those diagnosed as non-dysplastic progressed to high-grade dysplasia or cancer. TissueCypher outperformed traditional evaluations, supporting its integration into clinical practice for better risk management.

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Castle Biosciences has acquired AltheaDx, enhancing its portfolio with the IDgenetix test, which now covers seven additional mental health conditions. This acquisition expands Castle's estimated U.S. total addressable market (TAM) by approximately $5 billion to $8 billion. The transaction includes $65 million in initial consideration, with potential future payments of up to $75 million based on performance milestones.

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FAQ

What is the current stock price of Castle Biosciences (CSTL)?

The current stock price of Castle Biosciences (CSTL) is $27.02 as of March 9, 2026.

What is the market cap of Castle Biosciences (CSTL)?

The market cap of Castle Biosciences (CSTL) is approximately 806.3M.

CSTL Rankings

CSTL Stock Data

806.31M
27.86M
Diagnostics & Research
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