QUEST DIAGNOSTICS INC — Investor Relations & Filings
Quest Diagnostics Inc. is a leading provider of diagnostic information services. The company offers a broad range of clinical laboratory testing services to patients, physicians, and other healthcare providers. Its portfolio includes routine blood tests, complex and specialized assays, and advanced diagnostics such as gene-based and molecular testing. Leveraging a vast database of clinical lab results, Quest Diagnostics also provides insights through healthcare IT and data analytics to help improve health outcomes. The company operates an extensive network of patient service centers, emphasizing convenient and accessible testing powered by quality, speed, and technology.
Recent filings
| Filing | Released | Lang | Actions |
|---|---|---|---|
| 424B2 - QUEST DIAGNOSTICS INC (0001022079) (Filer) | 2026-04-28 | English | |
| FWP - QUEST DIAGNOSTICS INC (0001022079) (Subject) | 2026-04-27 | English | |
| 424B2 - QUEST DIAGNOSTICS INC (0001022079) (Filer) | 2026-04-27 | English | |
| 8-K - QUEST DIAGNOSTICS INC (0001022079) (Filer) | 2026-04-21 | English | |
| DEF 14A - QUEST DIAGNOSTICS INC (0001022079) (Filer) | 2026-04-06 | English | |
| SCHEDULE 13G/A - QUEST DIAGNOSTICS INC (0001022079) (Subject) | 2026-03-27 | English |
Market data
Market data not available
Price history
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QUEST DIAGNOSTICS 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/30275/ | Company identity, sector, listing, identifiers |
| GET | /api/filings/?company=30275 | 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=30275 | All ISINs registered to this company |
| GET | /api/filing-types/ | Reference: every filing-type code + category |
cURL
$ curl https://api.financialreports.eu/api/filings/?company=30275 \ -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": 30275}, 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 QUEST DIAGNOSTICS INC (id: 30275)"
Report missing filing
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