MRK
E468952
MRK is the stock ticker symbol for Merck & Co., a major global pharmaceutical company known for developing prescription medicines, vaccines, and animal health products.
All labels observed (1)
| Label | Occurrences |
|---|---|
| MRK canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4784873 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: MRK Context triple: [Merck & Co., tickerSymbol, MRK]
-
A.
MR
MR is a Belgian French-speaking liberal political party that participated as one of the partners in the federal Vivaldi coalition government led by Alexander De Croo.
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B.
MR
MR is the official vehicle registration code used on license plates for the city of Marburg in the German state of Hesse.
-
C.
MK
MK is the postal area code designation for Milton Keynes and its surrounding region in the United Kingdom.
-
D.
MK
MK is the commonly used abbreviation for Umkhonto we Sizwe, the former armed wing of South Africa’s African National Congress during the anti-apartheid struggle.
-
E.
MK
MK is the two-letter ISO 3166-1 alpha-2 country code assigned to North Macedonia.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: MRK Target entity description: MRK is the stock ticker symbol for Merck & Co., a major global pharmaceutical company known for developing prescription medicines, vaccines, and animal health products.
-
A.
MR
MR is a Belgian French-speaking liberal political party that participated as one of the partners in the federal Vivaldi coalition government led by Alexander De Croo.
-
B.
MR
MR is the official vehicle registration code used on license plates for the city of Marburg in the German state of Hesse.
-
C.
MK
MK is the postal area code designation for Milton Keynes and its surrounding region in the United Kingdom.
-
D.
MK
MK is the commonly used abbreviation for Umkhonto we Sizwe, the former armed wing of South Africa’s African National Congress during the anti-apartheid struggle.
-
E.
MK
MK is the two-letter ISO 3166-1 alpha-2 country code assigned to North Macedonia.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf | stock ticker symbol ⓘ |
| associatedWithIndustry |
Biotechnology industry
ⓘ
Healthcare industry ⓘ Pharmaceutical industry ⓘ |
| componentOfIndex |
Dow Jones Industrial Average
NERFINISHED
ⓘ
S&P 100 NERFINISHED ⓘ S&P 500 NERFINISHED ⓘ |
| countryOfExchange |
United States of America
ⓘ
surface form:
United States
|
| currency |
US dollar
ⓘ
surface form:
United States dollar
|
| hasCUSIP | 58933Y105 ⓘ |
| hasExchangeTicker | NYSE:MRK NERFINISHED ⓘ |
| hasISIN | US58933Y1055 ⓘ |
| issuerAlsoKnownAs |
MSD
NERFINISHED
ⓘ
Merck Sharp & Dohme NERFINISHED ⓘ |
| issuerFocusArea |
Animal health
ⓘ
Cardiometabolic diseases ⓘ Infectious diseases ⓘ Oncology ⓘ Vaccines ⓘ |
| issuerFormerHeadquartersCity | Kenilworth, New Jersey NERFINISHED ⓘ |
| issuerFoundedAs | Merck & Co. NERFINISHED ⓘ |
| issuerFounder | George Merck NERFINISHED ⓘ |
| issuerFoundingYear | 1891 ⓘ |
| issuerGlobalPresence | Operates in more than 100 countries ⓘ |
| issuerHasBusinessSegment |
Alliances and other
ⓘ
Animal health ⓘ Human health ⓘ |
| issuerHeadquartersCity | Rahway, New Jersey NERFINISHED ⓘ |
| issuerHeadquartersCountry | United States NERFINISHED ⓘ |
| issuerIncorporationState | New Jersey NERFINISHED ⓘ |
| issuerLegalName | Merck & Co., Inc. NERFINISHED ⓘ |
| issuerMajorProduct |
Gardasil
NERFINISHED
ⓘ
Januvia NERFINISHED ⓘ Keytruda NERFINISHED ⓘ |
| issuerMajorProductType |
Cancer immunotherapy
ⓘ
Human papillomavirus vaccine NERFINISHED ⓘ Type 2 diabetes medication ⓘ |
| issuerProduces |
Animal health products
ⓘ
Biologic therapies ⓘ Prescription medicines ⓘ Vaccines ⓘ |
| issuerRegulatoryFilingAuthority | U.S. Securities and Exchange Commission NERFINISHED ⓘ |
| issuerReportsForm |
Form 10-K
NERFINISHED
ⓘ
Form 10-Q ⓘ Form 8-K NERFINISHED ⓘ |
| issuerSector | Health Care ⓘ |
| issuerSubsector | Pharmaceuticals ⓘ |
| listedOn | New York Stock Exchange ⓘ |
| represents | Merck & Co., Inc. NERFINISHED ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: MRK Description of subject: MRK is the stock ticker symbol for Merck & Co., a major global pharmaceutical company known for developing prescription medicines, vaccines, and animal health products.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.