CASTLE BIOSCIENCES INC (CSTL)
SEC fundamentals · as filed in 10-Q FY2026, period ended Jun 30, 2026 · updated Oct 7, 2026
as filed in 10-Q FY2026, period ended Jun 30, 2026 · View filings on EDGAR ↗
In its 10-Q for the period ended Jun 30, 2026, CASTLE BIOSCIENCES INC reported revenue of $103.5M, net income of -$2.1M, and total assets of $561.2M. Every figure below is taken directly from CASTLE BIOSCIENCES INC's SEC filings: each links to the source document on EDGAR.
Revenue trend
Revenue · FY2018–FY2025 · as reported
- FY2018 revenue
- $22.8M
- FY2025 revenue
- $344.2M
Revenue and net income by fiscal year
As reported in each year’s annual filing · USD
| Fiscal year | Revenue | Net income |
|---|---|---|
| FY2025 | $344.2M | -$24.2M |
| FY2024 | $332.1M | $18.2M |
| FY2023 | $219.8M | -$57.5M |
| FY2022 | $137.0M | -$67.1M |
| FY2021 | $94.1M | -$31.3M |
| FY2020 | $62.6M | -$10.3M |
| FY2019 | $51.9M | $5.3M |
| FY2018 | $22.8M | -$6.4M |
Recent SEC filings
Filed by the registrant · newest first · insider forms and holder schedules not included
| Form | Filed | Source |
|---|---|---|
| 8-K | Jul 30, 2026 | on EDGAR ↗ |
| 10-Q | Jul 30, 2026 | on EDGAR ↗ |
| 8-K | May 29, 2026 | on EDGAR ↗ |
| 10-Q | May 6, 2026 | on EDGAR ↗ |
| 8-K | May 6, 2026 | on EDGAR ↗ |
| DEF 14A | Apr 8, 2026 | on EDGAR ↗ |
| 8-K | Feb 26, 2026 | on EDGAR ↗ |
| 10-K | Feb 26, 2026 | on EDGAR ↗ |
| 8-K | Jan 13, 2026 | on EDGAR ↗ |
| 8-K | Nov 3, 2025 | on EDGAR ↗ |
Balance Sheet
as of Jun 30, 2026 · 10-Q
Income Statement
10-Q (quarterly) · period ended Jun 30, 2026
| Revenue | $103.5M | Revenue | source ↗ |
| Net Income | -$2.1M | Net | source ↗ |
| Operating Income | -$3.1M | Operating | source ↗ |
| Gross Profit | $79.8M | Revenue−Cost | source ↗ |
| Cost of Revenue | $23.7M | Cost | source ↗ |
| R&D Expense | $14.5M | Research | source ↗ |
Per Share & Cash Flow
10-Q (quarterly) · period ended Jun 30, 2026
| EPS (diluted) | $-0.07 | Earnings | source ↗ |
| EPS (basic) | $-0.07 | Earnings | source ↗ |
| Shares Outstanding | 30.5M | Entity | source ↗ |
| Cash from Operations | $15.2M | Net | source ↗ |
| Cash from Financing | -$886,000 | Net | source ↗ |
| Cash from Investing | -$16.0M | Net | source ↗ |
Insider activity
Form 4 open-market activity, last 180 days
- Buys
- 0
- Sells
- 148
- Net shares
- -338.2K
Restatement history
Point-in-timeNo material restatements detected across 257 annual fact-keys: this company's as-filed numbers have held between filings. Point-in-time and as-of history are available via the API.
Deeper fundamentals
A free API key reaches CSTL’s revenue, margin and free-cash-flow trajectory (newest 3 fiscal years) and its leverage, liquidity and return ratios (newest 4 quarters). Analyst extends those to up to 20 years and 20 quarters, and adds the Piotroski F-score and accruals quality score. As-of fundamentals at any past date are on Free too, up to 10 lookups a day; Analyst removes that cap and adds the original-vs-restated detail, across the whole SEC universe.
Programmatic access
Everything on this page is served by the Distill API and by the MCP server at mcp.distillmarkets.com. A free key is issued at sign-up with no card; the full reference is in the docs.
- These fundamentals, as filed
- curlcurl -H "X-Api-Key: $DISTILL_API_KEY" \https://api.distillmarkets.com/api/v1/sec/fundamentals/CSTL
MCP tool:
get_sec_fundamentals ticker=CSTL - The same figures as they were known on any past date
- curlcurl -H "X-Api-Key: $DISTILL_API_KEY" \https://api.distillmarkets.com/api/v1/sec/fundamentals/CSTL/as-of/YYYY-MM-DD
MCP tool:
get_asof_fundamentals ticker=CSTL as_of=YYYY-MM-DD - Fiscal-year trajectory: revenue, margins, free cash flow
- curlcurl -H "X-Api-Key: $DISTILL_API_KEY" \https://api.distillmarkets.com/api/v1/sec/fundamentals/CSTL/history
MCP tool:
get_fundamentals_history ticker=CSTL - Leverage, liquidity, margin and return ratios
- curlcurl -H "X-Api-Key: $DISTILL_API_KEY" \https://api.distillmarkets.com/api/v1/sec/financial-health/CSTL
MCP tool:
get_financial_health ticker=CSTL
Not investment advice. Figures are shown as filed with the SEC; see the EDGAR source links for the original documents. Data may lag the latest filing.