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Castle Biosciences Inc. Company Profile

NASDAQ: CSTLHealth CareMedical SpecialitiesUSD

33.71+0.71 (+2.15%)

At close: Oct 8, 4:00 PM ET · Delayed 15 min

Castle Biosciences at a glance

Castle Biosciences Inc. (NASDAQ: CSTL) is a Medical Specialities company in the Health Care sector headquartered in Friendswood, TX. Castle Biosciences is led by Mr. Derek J. Maetzold and employs about 1,002 people. The company's shares have traded publicly since 2019.

At a market capitalization of $1.03 billion, it is considered a small-cap company. Its SEC Central Index Key (CIK) is 0001447362, which identifies the company's filings on EDGAR.

Summary generated from market data by MetaCap's automated system. Methodology

What does Castle Biosciences do?

Castle Biosciences, Inc., a molecular diagnostics company, provides test solutions for the diagnosis and treatment of dermatologic cancers, Barrett's esophagus (BE), atopic dermatitis (AD), and uveal melanoma. The company offers DecisionDx-Melanoma, a risk stratification gene expression profile (GEP) test that predicts the likelihood of a positive sentinel lymph node and the risk of metastasis for patients with invasive cutaneous melanoma; TissueCypher, a risk stratification spatialomics test to predict future development of high-grade dysplasia and/or esophageal cancer in patients with non-dysplastic, indefinite dysplasia, and low-grade dysplasia BE; AdvanceAD-Tx, a non-invasive GEP test which is designed to guide systemic treatment selection for patients aged 12 years and older with moderateto-severe AD; DecisionDx-SCC, a GEP test for cutaneous squamous cell carcinoma; and MyPath Melanoma, a diagnostic GEP test for use in patients with difficult-to-diagnose melanocytic lesions. It also provides DecisionDx-UM, a risk stratification GEP test that predicts the risk of metastasis for patients with uveal melanoma. The company offers its products to dermatology and gastroenterology markets. The company was incorporated in 2007 and is headquartered in Friendswood, Texas.

Business description based on the company's public filings.

Company information

Legal name
Castle Biosciences Inc.
Ticker
NASDAQ: CSTL
Industry
Medical Specialities
CEO
Mr. Derek J. Maetzold
Employees
1,002
Headquarters
1500 W. Parkwood Ave, Friendswood, TX, United States
Phone
866 788 9007
IPO year
2019
SEC CIK
0001447362
Latest annual report
10-K · Feb 26, 2026

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TRUPTrupanion Inc.25.82+4.83%$1.13Bvs CSTL
FLGTFulgent Genetics Inc.20.82+1.22%$572.87Mvs CSTL
YDESYD Bio Limited5.79-1.53%$410.11Mvs CSTL
FRNMFreenome Inc.15.81-1.37%$1.70Bvs CSTL
PSNLPersonalis Inc.16.06+0.38%$1.72Bvs CSTL
BDSXBiodesix Inc.25.63-2.99%$270.43Mvs CSTL
TLSITriSalus Life Sciences Inc.4.13-2.82%$254.30Mvs CSTL

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