CSTL Castle Biosciences, Inc.
NASDAQActiveCommon stock
CSTL is the ticker symbol of Castle Biosciences, Inc., which is listed on NASDAQ.
CSTL at a glance
- Symbol
- CSTL
- Company / issuer
- Castle Biosciences, Inc.
- Security type
- Common stock
- Exchange
- NASDAQ
- Status
- Actively traded
- Seen in listing files
- Jan 2021 – present
- Sector
- Health Care
- Industry
- Medical Specialities
- Country
- United States
- IPO year
- 2019
- Market cap
- $1.1 billion (Sep 2026)
Castle Biosciences, Inc. company profile
- Industry (SIC)
- Services-Medical Laboratories
- Headquarters
- Friendswood, TX
- Incorporated in
- DE
- Fiscal year end
- December 31
- SEC filer category
- Accelerated filer
- Latest annual report
- 10-K filed 2026-02-26
- Latest interim report
- 10-Q filed 2026-07-30
- SEC CIK
- 1447362
Source: SEC EDGAR filer data.
CSTL price chart
Interactive chart provided by TradingView (loads third-party scripts).
Frequently asked questions
What company has the ticker symbol CSTL?
CSTL is the ticker symbol of Castle Biosciences, Inc on NASDAQ.
Is CSTL still trading?
Yes. CSTL appears in the current NASDAQ listings as of Sep 2026.
Which exchange is CSTL listed on?
CSTL is listed on NASDAQ.
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