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LOOK INSIDE THE BUSINESS

Company financials.

Explore company-wide revenue, income and balance-sheet facts directly from SEC filings.

View CSTL insider activity ↗

CSTLCASTLE BIOSCIENCES INC

THE LATEST REPORTED YEAR

The company reported a loss.

$24.16M net loss for the year ended December 31, 2025. These are reported results, not a forecast or a stock recommendation.

Revenue$344.23MYear ended December 31, 2025
Profit or loss-$24.16MYear ended December 31, 2025
Cash from the business$64.35MYear ended December 31, 2025
Total assets$561.18MAs of June 30, 2026
Total liabilities$91.15MAs of June 30, 2026
Cash & equivalents$62.12MAs of June 30, 2026
THE BUSINESS BEHIND THE TICKER

Revenue, over time.

Latest-filed standard financial facts · USD

$22.79M
2018-12
$51.87M
2019-12
$62.65M
2020-12
$94.09M
2021-12
$137.04M
2022-12
$219.79M
2023-12
$332.07M
2024-12
$344.23M
2025-12

Bars show magnitude; labels retain the sign. Each observation covers a reported annual period of 330–400 days; transition years can differ.

From the filing

Reported periods can differ from calendar years. Later filings may restate earlier figures. These are company-wide facts; product and geographic revenue segments are not included.

Reported periodReported valueFiledSource
January 1, 2025 – December 31, 2025$344,229,000February 26, 202610-K ↗
January 1, 2024 – December 31, 2024$332,069,000February 26, 202610-K ↗
January 1, 2023 – December 31, 2023$219,788,000February 26, 202610-K ↗
January 1, 2022 – December 31, 2022$137,039,000February 27, 202510-K ↗
January 1, 2021 – December 31, 2021$94,085,000February 28, 202310-K ↗
January 1, 2020 – December 31, 2020$62,649,000February 28, 202210-K ↗
January 1, 2019 – December 31, 2019$51,865,000March 11, 202110-K ↗
January 1, 2018 – December 31, 2018$22,786,000March 10, 202010-K ↗
Source and calculation details

One standard US-GAAP or IFRS concept is selected per metric, using USD only. Annual durations must be 330–400 days. Quarterly durations must be 70–110 days; year-to-date totals are excluded, and fourth quarters are never inferred by subtraction. Cash-flow quarters can therefore be sparse. Conflicting values filed on the same day are excluded. Latest-filed values are used, so these observations must not be treated as facts known in an earlier backtest.

Concept: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax · Retrieved October 12, 2026

Response SHA-256: b5b12bbb6c222921977bf2a7a522ce535d23114b78b16b6605d69acd491e349c

SEC company facts

Company-wide USD figures from SEC filings. Each card keeps its own reporting date; later filings can revise earlier results.