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Castle Biosciences

US · CSTL #3242 by market cap Listed 2019
33.00 -0.36 -1.08%
Live - 5344 symbols - heartbeat 196s ago · 2026-10-07 19:54
After-hours 33.00 0.00%
Market cap
1.01B
P/B
2.14
EPS
-0.83
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About Castle Biosciences

Castle Biosciences, Inc. is a molecular diagnostics company, which offers innovative test solutions to aid clinicians in the diagnosis and treatment of dermatologic cancers, barrett’s esophagus, uveal melanoma, and in the treatment of mental health conditions. The firm offers DecisionDx-Melanoma, a proprietary multi-gene expression profile (GEP) test that predicts the risk of metastasis and recurrence for patients diagnosed with invasive cutaneous melanoma. It also markets DecisionDx-UM, Decision Dx DiffDx-Melanoma, DecisonDx-CMSeq, DecisionDx-SCC, DecsionDx-UMSeq, and DecisonDX-PRAME. The company was founded by Derek J. Maetzold in September 2007 and is headquartered in Friendswood, TX.

Founded
2007
CEO
Mr. Derek J. Maetzold
Employees
883
Headquarters
Friendswood, Texas, United States of America
Fiscal year end
12-31
Website
castlebiosciences.com

Company profile

Exchange
US
Symbol
CSTL
Market-cap rank
#3242
Listing date
2019-07-25
Market cap
1.01B
Float cap
896.04M
Shares out
30.55M
Float shares
27.15M

Sectors & themes

Diagnostics & Research Fractional Shares JP

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Quote time 2026-10-07 19:54:59 · For reference only, not investment advice and not tailored to your situation.