Irving Kahn
E191311
Irving Kahn was a pioneering American value investor and longtime disciple of Benjamin Graham, renowned for his disciplined, research-driven approach and extraordinary longevity in the investment world.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Irving Kahn canonical | 4 |
How this entity was disambiguated
This entity first appeared as the object of triple T638856 — 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: Irving Kahn Context triple: [Benjamin Graham, influenced, Irving Kahn]
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A.
William Zeckendorf
William Zeckendorf was a prominent mid-20th-century American real estate developer known for large-scale urban projects and pioneering modern commercial and residential complexes.
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B.
Alfred A. Cohn
Alfred A. Cohn was an American screenwriter and title writer of the silent and early sound film era, best known for his work on influential films such as The Jazz Singer.
-
C.
Solomon Loeb
Solomon Loeb was a prominent 19th-century German-American banker and co-founder of the influential investment bank Kuhn, Loeb & Co.
-
D.
Harold T. Shapiro
Harold T. Shapiro is an economist and academic leader best known for serving as president of both Princeton University and the University of Michigan and for his influential work at the intersection of higher education and public policy.
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E.
Eugene Kleiner
Eugene Kleiner was a pioneering Silicon Valley engineer and venture capitalist, best known as a co-founder of Fairchild Semiconductor and the influential VC firm Kleiner Perkins.
- 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: Irving Kahn Target entity description: Irving Kahn was a pioneering American value investor and longtime disciple of Benjamin Graham, renowned for his disciplined, research-driven approach and extraordinary longevity in the investment world.
-
A.
William Zeckendorf
William Zeckendorf was a prominent mid-20th-century American real estate developer known for large-scale urban projects and pioneering modern commercial and residential complexes.
-
B.
Alfred A. Cohn
Alfred A. Cohn was an American screenwriter and title writer of the silent and early sound film era, best known for his work on influential films such as The Jazz Singer.
-
C.
Solomon Loeb
Solomon Loeb was a prominent 19th-century German-American banker and co-founder of the influential investment bank Kuhn, Loeb & Co.
-
D.
Harold T. Shapiro
Harold T. Shapiro is an economist and academic leader best known for serving as president of both Princeton University and the University of Michigan and for his influential work at the intersection of higher education and public policy.
-
E.
Eugene Kleiner
Eugene Kleiner was a pioneering Silicon Valley engineer and venture capitalist, best known as a co-founder of Fairchild Semiconductor and the influential VC firm Kleiner Perkins.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
financial analyst
ⓘ
human ⓘ investment manager ⓘ value investor ⓘ |
| associatedWith |
Benjamin Graham’s circle of students
ⓘ
Columbia University ⓘ |
| coFounded | Kahn Brothers Group ⓘ |
| countryOfCitizenship | United States of America ⓘ |
| describedAs |
disciplined
ⓘ
long-term oriented ⓘ research-driven ⓘ |
| educatedBy | Benjamin Graham ⓘ |
| employer | Kahn Brothers Group ⓘ |
| familyName | Kahn ⓘ |
| fieldOfWork |
fundamental analysis
ⓘ
security analysis ⓘ value investing ⓘ |
| givenName | Irving ⓘ |
| hasRelative |
Alan Kahn
ⓘ
Sheila Kahn ⓘ Thomas Graham Kahn ⓘ |
| influenced | generations of value investors ⓘ |
| influencedBy | Benjamin Graham ⓘ |
| investmentApproach |
bottom-up stock selection
ⓘ
fundamental research ⓘ |
| investmentPhilosophy |
long-term investing
ⓘ
margin of safety ⓘ value investing ⓘ |
| knownFor |
being one of the oldest active professional investors
ⓘ
conservative investment style ⓘ emphasis on capital preservation ⓘ extensive reading and research in investing ⓘ |
| languageSpoken | English ⓘ |
| memberOf | Kahn family of investors ⓘ |
| name | Irving Kahn self-link ⓘ |
| notableFor |
disciplined research-driven investment approach
ⓘ
extraordinary longevity in the investment profession ⓘ pioneering value investing ⓘ |
| occupation |
businessperson
ⓘ
financial analyst ⓘ investor ⓘ |
| positionHeld | chairman of Kahn Brothers Group ⓘ |
| practiced | security analysis as defined by Benjamin Graham ⓘ |
| residence | New York City ⓘ |
| sexOrGender | male ⓘ |
| studentOf | Benjamin Graham ⓘ |
| taughtAt | Columbia Business School ⓘ |
| usedMethod |
balance sheet analysis
ⓘ
income statement analysis ⓘ valuation based on intrinsic value ⓘ |
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: Irving Kahn Description of subject: Irving Kahn was a pioneering American value investor and longtime disciple of Benjamin Graham, renowned for his disciplined, research-driven approach and extraordinary longevity in the investment world.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Benjamin Graham