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Castle Biosciences Stock Price, News & Analysis

CSTL Nasdaq

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 that CEO Derek Maetzold will present at the Canaccord Genuity 41st Annual Growth Conference on August 11, 2021, at 3:30 p.m. ET. The presentation will be available via a live audio webcast on the company’s website, with a replay accessible for two weeks post-event.

Castle Biosciences focuses on dermatologic diagnostics, providing genomic information that informs treatment decisions, particularly for melanoma and other skin cancers. Their innovative tests are designed to aid physicians in making personalized treatment plans.

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Castle Biosciences (Nasdaq: CSTL) will release its second quarter financial results on August 9, 2021, after market close. A conference call and webcast will follow at 4:30 p.m. ET. The company specializes in dermatologic diagnostics, offering genomic tests for melanoma and other skin cancers to support treatment decisions. Castle aims to enhance personalized medicine experiences for patients and physicians. Additionally, the company has ongoing R&D for psoriasis treatment response testing, and it recently acquired the myPath Melanoma laboratory in Salt Lake City.

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Castle Biosciences, Inc. (Nasdaq: CSTL) announced a podium presentation on its DecisionDx®-SCC test at the AHNS 10th International Conference from July 22-25, 2021. This 40-gene expression profile test assesses the metastasis risk in high-risk cutaneous squamous cell carcinoma patients. A study involving 278 patients demonstrated significant differences in three-year metastasis-free survival rates based on the DecisionDx-SCC results compared to traditional staging methods. The test enhances risk assessment and informs treatment decisions.

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Castle Biosciences (Nasdaq: CSTL) announced data presentations for two gene expression profile tests, DecisionDx-Melanoma and DecisionDx-SCC, at the SDPA Annual Summer Dermatology Conference 2021. DecisionDx-Melanoma predicts melanoma metastasis and recurrence risk, showing that 89% of nurse practitioners view its testing as beneficial to patient care. DecisionDx-SCC assesses metastatic risk in cutaneous squamous cell carcinoma patients, reporting a technical reliability of 96.3% across the first 1000 samples. Both studies underline the clinical utility of these tests in improving treatment decisions.

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Castle Biosciences, Inc. (Nasdaq: CSTL) has appointed Kim Caple and Ellen Goldberg to its board of directors, effective immediately. Derek Maetzold, CEO, expressed confidence in their leadership and experience. Caple, currently with Thermo Fisher Scientific, brings expertise in genetic analysis technologies. Goldberg, founder of CHORD Consulting, has a robust background in diagnostics and marketing, notably with the Oncotype DX Breast Cancer Assay. The company specializes in dermatologic diagnostics, providing genomic information for better treatment decisions.

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Castle Biosciences, Inc. (Nasdaq: CSTL) has been recognized in the Houston Chronicle’s CHRON 100 list for the second consecutive year, highlighting its success in Market Value, Market Return, and Revenue Growth. The recognition reflects Castle's ongoing growth in genomic diagnostics for dermatologic conditions, primarily through its flagship product, the DecisionDx®-Melanoma. The firm plans to enhance its diagnostic suite further, contributing to its stature as a leader in the sector and aiming to improve patient outcomes.

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Castle Biosciences, Inc. (Nasdaq: CSTL) has received approval from the New York State Department of Health for its DecisionDx-SCC test, a gene expression profile test that predicts the risk of cutaneous squamous cell carcinoma metastasis. This approval allows patients in New York access to the test, enhancing informed treatment decisions. The company continues to expand its range of genomic tests, having previously gained approvals for others, and emphasizes its commitment to high standards in laboratory medicine.

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AltheaDx has appointed Derek Maetzold to its Board of Directors, enhancing its leadership with expertise in diagnostics and management. Maetzold, CEO of Castle Biosciences (CSTL), has significant experience in growing molecular diagnostics businesses. His addition aims to drive AltheaDx’s growth strategy, especially in the demand for pharmacogenomics testing for mental health, intensified by the pandemic. AltheaDx's flagship product, NeuroIDgenetix, is a Medicare-reimbursed test that enhances clinical decision-making for anxiety and depression treatments.

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Castle Biosciences (Nasdaq: CSTL) announces a ribbon-cutting ceremony for its new headquarters in Friendswood, Texas, on May 25, 2021, from 3:00 p.m. to 6:00 p.m. Central time. The expansion reflects the company's commitment to improving patient care in dermatology, particularly for skin cancer. In 2020, the workforce grew by nearly 50%, with further hiring expected in 2021. The new facility will support the company's growth and development of genomic tests, including DecisionDx series for various skin cancers. Castle aims to enhance its offerings in dermatologic diagnostics.

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FAQ

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

The current stock price of Castle Biosciences (CSTL) is $40.75 as of January 15, 2026.

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

The market cap of Castle Biosciences (CSTL) is approximately 1.2B.
Castle Biosciences

Nasdaq:CSTL

CSTL Rankings

CSTL Stock Data

1.19B
27.89M
2.9%
93.07%
5.23%
Diagnostics & Research
Services-medical Laboratories
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United States
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