# clm_80687BA8375E

subject: Regeneron Pharmaceuticals (/record/regeneron-pharmaceuticals.md)  
predicate: founded  
value: 1988  
valid_from: 1988-01-01  
valid_to: null  
published: no source on record carries a date  
recorded: 2026-11-14  
confidence: 0.95  
status: valid  
assertable: true  
superseded_by: null  
last_updated: 2026-11-14  
cite: AsOf. "Regeneron Pharmaceuticals founded: 1988", as of 1988-01-01. Claim clm_80687BA8375E, https://asof.is/claim/clm_80687BA8375E, accessed 2026-11-14. Source: https://www.regeneron.com/about/leadership/leonard-schleifer.  
checked: 2026-11-14 · its source page states the value and the date, as read by an AI model  

> Len founded Regeneron in 1988, with the vision of creating a company built entirely on science, where scientists are the heroes, and everyone works toward the common goal of helping patients.

What https://www.regeneron.com/about/leadership/leonard-schleifer says, word for word.

## Sources

- https://www.regeneron.com/about/leadership/leonard-schleifer (primary)

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AsOf is a temporal fact ledger: a structured, dated, sourced record of what is true and what changed, built for AI retrieval.
