Castle Biosciences, Inc.
CSTLNASDAQHealthcare● Active
$20.12
$-0.89(-4.24%)
Market Cap$610238634
P/E Ratio—
52W High$44.28
52W Low$14.59
Castle Biosciences, Inc. (CSTL) · Cash Flow
Annual, quarterly, or TTM views · SEC 10-K & 10-Q via FMP · adjust period and M/B/T below.
FMP · CSTL · as of 2026-06-10
Financial statements
Operating CF · CapEx · Free Cash Flow
| Breakdown | 2025-12 | 2024-12 | 2023-12 | 2022-12 | 2021-12 |
|---|---|---|---|---|---|
| Operating Activities | |||||
| Net Income | ($0.02B) | $0.02B | ($0.06B) | ($0.07B) | ($0.03B) |
| Depreciation & Amort. | $0.04B | $0.02B | $0.01B | $0.01B | $0.00B |
| Stock-Based Comp. | $0.05B | $0.05B | $0.05B | $0.04B | $0.02B |
| Change in Working Capital | $0.01B | ($0.01B) | ($0.01B) | ($0.00B) | ($0.00B) |
| Net Cash from Operations | $0.06B | $0.06B | ($0.01B) | ($0.04B) | ($0.02B) |
| Investing Activities | |||||
| Capital Expenditure | ($0.04B) | ($0.03B) | ($0.01B) | ($0.01B) | ($0.00B) |
| Purchases of Investments | ($0.19B) | ($0.21B) | ($0.19B) | ($0.13B) | $0.00B |
| Sales of Investments | $0.19B | $0.18B | $0.19B | $0.00B | $0.00B |
| Net Cash from Investing | ($0.06B) | ($0.05B) | ($0.02B) | ($0.17B) | ($0.07B) |
| Financing Activities | |||||
| Common Stock Repurchased | $0.00B | $0.00B | $0.00B | $0.00B | $0.00B |
| Dividends Paid | $0.00B | $0.00B | $0.00B | $0.00B | $0.00B |
| Debt Issued / Repaid | ($0.00B) | $0.01B | ($0.00B) | ($0.00B) | ($0.00B) |
| Net Cash from Financing | ($0.01B) | $0.01B | ($0.00B) | $0.00B | $0.01B |
| Free Cash Flow | |||||
| Free Cash Flow | $0.03B | $0.04B | ($0.02B) | ($0.05B) | ($0.02B) |
| FCF Margin %(computed) | 8.23% | 11.00% | -8.76% | -34.51% | -23.88% |
Data source: Financial Modeling Prep · Last updated: 2026-06-10 · USD · B
Explore more Castle Biosciences, Inc. data
About Castle Biosciences, Inc. (CSTL) Cash Flow Statement
Castle Biosciences, Inc. generated operating cash flow of $0.06B and free cash flow of $0.03B for 2025 — a FCF margin of 8.23%. Capital expenditure was ($0.04B).
Frequently asked questions
CSTL · 4 questionsCastle Biosciences, Inc. generated free cash flow of $0.03B for 2025, down 22.5% year-over-year.
CSTL free cash flowFCF margincash flow yield
· Source: FMP /stable/cash-flow-statement · SEC EDGAR Form 10-K & 10-Q · As of 2026-06-10