finance.foundation / Companies / Merck & Co. (MRK)
Company · Healthcare · Pharmaceuticals
Merck & Co. (MRK)
US pharmaceutical major (known as MSD outside North America) whose cancer immunotherapy Keytruda is among the world's best-selling drugs; also strong in vaccines and animal health.
- Legal name
- Merck & Co., Inc.
- Ticker
- MRK
- Exchange
- New York Stock Exchange · MIC XNYS
- Country
- United States
- Sector
- Healthcare
- Industry
- Pharmaceuticals
- Market cap ≈
- $250bn (approx., seed-0.6 · 2026-08-29)
- Reporting currency
- USD
- Founded
- 1891
- Website
- www.merck.com
- LEI
- 4YV9Y5M8S0BRK1RP0397 (GLEIF)
- ISIN
- US58933Y1055 (check digit validated)
- FIGI
- BBG001S5TC52 (share class, OpenFIGI)
Graph connections view in graph →
lists_onNew York Stock Exchange
domiciled_inUnited States
member_ofS&P 500
Sector peers — Healthcare
Compare: MRK vs LLY · MRK vs UNH · MRK vs JNJ
Identifier crosswalk
| Standard | Value | What it answers |
|---|---|---|
| Ticker | MRK | Venue-local shorthand — ambiguous across markets |
| MIC | XNYS | ISO 10383 — the venue |
| ISIN | US58933Y1055 | ISO 6166 — the security |
| LEI | 4YV9Y5M8S0BRK1RP0397 | ISO 17442 — the legal entity |
| FIGI | BBG001S5TC52 | OpenFIGI — instrument, share class |
| CUSIP | 58933Y105 | Derived from the US/CA ISIN, check digit verified — licensed identifier, not republished as data |
One entity, six naming systems. Each linked code opens its reverse-lookup page; the validator checks any code's check digit. CUSIP is shown because it is embedded in US/CA ISINs — we verify it, we do not redistribute CUSIP data.
Approximate reference values from public sources · seed-0.6 · 2026-08-29 · not real-time. See data & methodology.
# this page as data
GET https://finance.foundation/api/v1/companies/merck