What one share of Castle Biosciences holds
Castle Biosciences is a molecular diagnostics company offering innovative test solutions to aid clinicians in the diagnosis and treatment of dermatologic cancers, Barrett’s esophagus (“BE”), atopic dermatitis (“AD”), uveal melanoma (“UM”).
Castle Biosciences’s numbers from its SEC filings, divided by its shares. Results cover the last 12 months to 2026-06-30; the balance sheet is as of 2026-06-30.
| Sales | $12.04 |
|---|---|
| Profit | −$0.65 |
| Capex (buildings and equipment) | $1.45 |
| Free cash flow | −$0.02 |
| Cash and investments | $8.75 |
| Debt | $0.34 |
| Book value | $15.41 |
Per share by fiscal year
| Year | Sales | Profit | Capex | Free cash | Dividends | Book value |
|---|---|---|---|---|---|---|
| 2018 | $11.95 | −$5.33 | $0.15 | −$6.60 | $0.00 | −$29.52 |
| 2019 | $5.99 | −$0.21 | $0.11 | $0.70 | $0.00 | $4.97 |
| 2020 | $3.31 | −$0.54 | $0.25 | $0.27 | $0.00 | $16.75 |
| 2021 | $3.74 | −$1.24 | $0.14 | −$0.89 | $0.00 | $16.22 |
| 2022 | $5.26 | −$2.58 | $0.22 | −$1.81 | $0.00 | $15.03 |
| 2023 | $8.20 | −$2.14 | $0.51 | −$0.72 | $0.00 | $14.27 |
| 2024 | $11.35 | $0.62 | $0.97 | $1.25 | $0.00 | $16.00 |
| 2025 | $11.88 | −$0.83 | $1.24 | $0.98 | $0.00 | $15.86 |
Common questions about Castle Biosciences
How much does one share of Castle Biosciences earn?
Over the last 12 months, Castle Biosciences lost $0.65 for each share on $12.04 of sales.
Does Castle Biosciences pay a dividend?
Castle Biosciences didn’t pay a dividend over the last 12 months, according to its SEC filings.
What is Castle Biosciences’s book value per share?
Castle Biosciences’s book value is $15.41 per share: what would be left for each share if it sold everything at the values on its books and paid every debt, as of June 30, 2026.
How much cash and debt does each share of Castle Biosciences have?
Each share of Castle Biosciences has $8.75 of cash and investments and $0.34 of debt, as of June 30, 2026.
What is Castle Biosciences’s free cash flow per share?
−$0.02 per share over the last 12 months. Free cash flow is the cash left over after spending on buildings and equipment.
Has Castle Biosciences bought back shares?
Castle Biosciences’s share count rose about 1421% from 2018 to 2025. That dilution means each share owns a smaller slice of the company.
From its SEC filings. For education only, not investment advice. New to these words? See the StockSlicer glossary.