NYSE:ELN
E559465
NYSE:ELN was the stock ticker symbol for Elan Pharmaceuticals, an Irish biotechnology company known for developing treatments for neurological and autoimmune diseases.
All labels observed (1)
| Label | Occurrences |
|---|---|
| NYSE:ELN canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T5981231 — 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: NYSE:ELN Context triple: [Elan Pharmaceuticals, tradedAs, NYSE:ELN]
-
A.
NASDAQ:ON
NASDAQ:ON is the stock ticker symbol for onsemi, a leading global supplier of power and sensing semiconductor solutions used in automotive, industrial, and other high-performance applications.
-
B.
OTC Markets Group
OTC Markets Group is a U.S.-based financial market operator that runs electronic over-the-counter trading platforms for securities not listed on major stock exchanges.
-
C.
NYSE:SO
NYSE:SO is the stock ticker symbol for The Southern Company, a major U.S. electric and gas utility holding company serving the southeastern United States.
-
D.
ESL Investments
ESL Investments is a hedge fund founded and led by Edward S. Lampert, known for its concentrated value-investing strategy and high-profile retail holdings.
-
E.
NYSE:PEG
NYSE:PEG is the stock ticker for Public Service Enterprise Group Incorporated, a major publicly traded energy company based in New Jersey that provides electricity and gas services.
- 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: NYSE:ELN Target entity description: NYSE:ELN was the stock ticker symbol for Elan Pharmaceuticals, an Irish biotechnology company known for developing treatments for neurological and autoimmune diseases.
-
A.
NASDAQ:ON
NASDAQ:ON is the stock ticker symbol for onsemi, a leading global supplier of power and sensing semiconductor solutions used in automotive, industrial, and other high-performance applications.
-
B.
OTC Markets Group
OTC Markets Group is a U.S.-based financial market operator that runs electronic over-the-counter trading platforms for securities not listed on major stock exchanges.
-
C.
NYSE:SO
NYSE:SO is the stock ticker symbol for The Southern Company, a major U.S. electric and gas utility holding company serving the southeastern United States.
-
D.
ESL Investments
ESL Investments is a hedge fund founded and led by Edward S. Lampert, known for its concentrated value-investing strategy and high-profile retail holdings.
-
E.
NYSE:PEG
NYSE:PEG is the stock ticker for Public Service Enterprise Group Incorporated, a major publicly traded energy company based in New Jersey that provides electricity and gas services.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
biotechnology company
ⓘ
public company ⓘ |
| acquiredBy |
Perrigo Company plc
ⓘ
linked to:
Perrigo
|
| acquisitionDate | 2013 ⓘ |
| acquisitionValue | approximately $8.6 billion ⓘ |
| collaboratedWith |
Biogen Idec
ⓘ
linked to:
Biogen
Johnson & Johnson ⓘ Wyeth ⓘ |
| countryOfOrigin | Ireland ⓘ |
| currencyOfStock |
GBP
ⓘ
linked to:
Pound sterling
USD ⓘ |
| delistedFrom |
LSE
ⓘ
NYSE ⓘ |
| developedFor |
Alzheimer's disease
ⓘ
Crohn's disease ⓘ multiple sclerosis ⓘ |
| focusesOn |
autoimmune diseases
ⓘ
neurological diseases ⓘ |
| formerTicker |
LSE:ELA
ⓘ
NYSE:ELN ⓘ |
| foundedBy | Don Panoz ⓘ |
| foundedIn | 1969 ⓘ |
| headquartersLocation |
Dublin, Ireland
ⓘ
linked to:
Dublin
|
| industry |
biotechnology
ⓘ
pharmaceuticals ⓘ |
| ISIN | IE0003072950 ⓘ |
| legalIssue | accounting and financial reporting investigations in early 2000s ⓘ |
| listedOn |
LSE
ⓘ
NYSE ⓘ |
| notableEvent |
Tysabri safety concerns and temporary market withdrawal in 2005
ⓘ
reintroduction of Tysabri with risk management program ⓘ |
| notableMarket |
Europe
ⓘ
United States ⓘ
linked to:
United States of America
|
| notableProduct |
Antegren
ⓘ
Bapineuzumab ⓘ
linked to:
bapineuzumab
Tysabri ⓘ |
| primaryTherapeuticArea |
immunology
ⓘ
neurology ⓘ |
| reasonForDelisting | acquisition by Perrigo ⓘ |
| researchFocus |
biologic therapies
ⓘ
central nervous system disorders ⓘ monoclonal antibodies ⓘ |
| status | defunct as independent company ⓘ |
| stockExchange |
London Stock Exchange
ⓘ
New York Stock Exchange ⓘ |
| tradedAs |
LSE:ELA
ⓘ
NYSE:ELN ⓘ |
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: NYSE:ELN Description of subject: NYSE:ELN was the stock ticker symbol for Elan Pharmaceuticals, an Irish biotechnology company known for developing treatments for neurological and autoimmune diseases.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
NYSE:ELN