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Castle Biosciences (CSTL) investor relations material
Castle Biosciences Piper Sandler 37th Annual Healthcare Conference summary
Complete event summary combining all related documents: earnings call transcript, report, and slide presentation.Piper Sandler 37th Annual Healthcare Conference summary2 Dec, 2025
Third-quarter performance and financial overview
Achieved 36% year-over-year revenue and volume growth in Q3 2025, driven by core dermatology and gastroenterology tests.
Adjusted gross margin was 77%, down from 82% last year, reflecting loss of squamous cell carcinoma coverage.
Net cash from operations was just under $23 million, with $287 million in cash and equivalents at quarter-end.
Reported a net loss of $0.5 million and adjusted EBITDA of $9.2 million.
Product portfolio and innovation
Five dermatology tests are available, including MyPath Melanoma, DecisionDx-Melanoma, DecisionDx-SCC, and two therapy selection tests.
DecisionDx-SCC predicts response to adjuvant radiation therapy, potentially reducing unnecessary treatments.
AdvanceAD-Tx, a new test for guiding systemic therapy in moderate to severe atopic dermatitis, launched on a limited basis.
Non-invasive scraping technique developed for atopic dermatitis testing, eliminating need for biopsies.
Collaboration with SciBase explores EIS technology to predict atopic dermatitis flares.
Market opportunity and penetration
Dermatology TAM includes $540 million for melanoma and $820 million for high-risk cutaneous squamous cell carcinoma.
Atopic dermatitis test targets 13 million US patients aged 12+, representing a significant growth opportunity.
Gastroenterology TAM is estimated at $1 billion, with 420,000 Barrett's esophagus diagnoses annually.
Achieved 30%-31% market penetration for melanoma test by Q3 2025.
Strategy to restore gross margin to 82% level
Advance ADTX: path to broad market penetration
DecisionDx-SCC: Leverage radiation therapy prediction
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Next Castle Biosciences earnings date
Q4 202527 Feb, 2026
Next Castle Biosciences earnings date
Q4 202527 Feb, 2026
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Frequently asked questions
Castle Biosciences, Inc., a commercial-stage dermatological cancer company, focuses to provide diagnostic and prognostic solutions for dermatological cancers. Castle Biosciences is a provider of products that assesses the response of cancer patients to treatment. The company's products include Immunoscore non-invasive test, which measures changes in proteins expressed on the surface of a person's tumor; CastleTRAC, a diagnostic tool for assessing the tissue response in four types of cutaneous T-cell lymphomas (CTCL); and CastleMAP for measuring the immune reaction to a specific drug. Castle Biosciences, Inc., is based in Friendswood, Texas.
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