CASTLE BIOSCIENCES INC — Investor Relations & Filings
Filings indexed
793
across all filing types
Latest filing
2026-05-29
Regulatory Filings
Country
US
United States of America
Listing
US
CSTL
Castle Biosciences Inc. is a diagnostics company that develops and commercializes innovative tests to guide patient care and improve health outcomes. The company focuses on translating a patient's unique tumor biology, particularly through gene expression profiling, into clinically actionable prognostic and diagnostic information. Its primary portfolio includes tests for dermatologic cancers, such as cutaneous melanoma and squamous cell carcinoma. These molecular tests are designed to provide healthcare providers with critical data to inform personalized disease management and treatment strategies. The clinical validity and utility of Castle Biosciences' tests are supported by an extensive body of peer-reviewed publications.
Recent filings
| Filing | Released | Lang | Actions |
|---|---|---|---|
| 8-K | 2026-05-29 | English | |
| 8-K - CASTLE BIOSCIENCES INC (0001447362) (Filer) | 2026-05-06 | English | |
| ARS - CASTLE BIOSCIENCES INC (0001447362) (Filer) | 2026-04-08 | English | |
| DEF 14A - CASTLE BIOSCIENCES INC (0001447362) (Filer) | 2026-04-08 | English | |
| 144 - CASTLE BIOSCIENCES INC (0001447362) (Subject) | 2026-03-26 | English | |
| 10-K - CASTLE BIOSCIENCES INC (0001447362) (Filer) | 2026-02-26 | English |
| ID | Filing | Released | Lang | Actions | |
|---|---|---|---|---|---|
|
2026
15 filings
| |||||
| 47894306 | 8-K | 2026-05-29 | English | ||
| 42006662 | 8-K - CASTLE BIOSCIENCES INC (0001447362) (Filer) | 2026-05-06 | English | ||
| 33822403 | ARS - CASTLE BIOSCIENCES INC (0001447362) (Filer) | 2026-04-08 | English | ||
| 33821999 | DEF 14A - CASTLE BIOSCIENCES INC (0001447362) (Filer) | 2026-04-08 | English | ||
| 33052626 | 144 - CASTLE BIOSCIENCES INC (0001447362) (Subject) | 2026-03-26 | English | ||
| 32892042 | 10-K - CASTLE BIOSCIENCES INC (0001447362) (Filer) | 2026-02-26 | English | ||
| 32892041 | 8-K - CASTLE BIOSCIENCES INC (0001447362) (Filer) | 2026-02-26 | English | ||
| 29859414 | SCHEDULE 13G Filing | 2026-02-17 | English | ||
| 32892040 | 4 - CASTLE BIOSCIENCES INC (0001447362) (Filer) | 2026-02-05 | English | ||
| 29859421 | 4 Filing | 2026-01-22 | English | ||
| 29859432 | 4 Filing | 2026-01-14 | English | ||
| 29859428 | 4 Filing | 2026-01-14 | English | ||
| 29859417 | 4 Filing | 2026-01-14 | English | ||
| 29859415 | 4 Filing | 2026-01-14 | English | ||
| 29859434 | 8-K Filing | 2026-01-13 | English | ||
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CASTLE BIOSCIENCES INC via the API
Pull this company's filings, identifiers, and metadata as JSON or Markdown. Authenticate with your API key, then query by company ID, ISIN, or LEI. Full schema documented in the OpenAPI spec.
Endpoints
| GET | /api/companies/32601/ | Company identity, sector, listing, identifiers |
| GET | /api/filings/?company=32601 | Paginated list of all filings (filterable by type, date, language) |
| GET | /api/filings/{id}/ | Single filing — metadata, document URL, processing status |
| GET | /api/filings/{id}/markdown/ | Filing content as Markdown (PDF → text/tables/figures) |
| GET | /api/isins/?company=32601 | All ISINs registered to this company |
| GET | /api/filing-types/ | Reference: every filing-type code + category |
Full reference: API reference · OpenAPI schema
cURL
$ curl https://api.financialreports.eu/api/filings/?company=32601 \ -H "x-api-key: $FR_API_KEY" \ -H "Accept: application/json"
Python
import requests r = requests.get( "https://api.financialreports.eu/api/filings/", params={"company": 32601}, headers={"x-api-key": API_KEY}, ) filings = r.json()["results"]
MCP server
// MCP server URL https://mcp.financialfilings.com/mcp // Once connected, the LLM can query this company directly: "Pull the latest 5 filings for CASTLE BIOSCIENCES INC (id: 32601)"
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