# Amgen founding date

entity: /record/amgen.md  
predicate: founded  
page: /record/amgen/founded  
as_of: 2026-11-11  
cite: AsOf. "Amgen founded: 1980-04-08", as of 1980-04-08. Claim clm_AF69CE9481C2, https://asof.is/claim/clm_AF69CE9481C2, accessed 2026-11-11. Source: https://www.amgen.com/about/amgen-history.  

As of November 11, 2026, Amgen's founding date on the AsOf record is April 8, 1980, dated April 8, 1980, from a primary source (amgen.com).

1 claim on Amgen's founding date, 1 open and 0 superseded, each dated and sourced; a replaced value is closed with an end date, never deleted.

## Current founding date

What the record asserts on 2026-11-11.

- [Amgen](/record/amgen.md) | founded | 1980-04-08 | valid 1980-04-08 to present | conf 0.95 | valid | [clm_AF69CE9481C2](/claim/clm_AF69CE9481C2.md)
  sources: https://www.amgen.com/about/amgen-history

## Every dated value

One claim per line, oldest first. Superseded claims stay visible.

- [Amgen](/record/amgen.md) | founded | 1980-04-08 | valid 1980-04-08 to present | conf 0.95 | valid | [clm_AF69CE9481C2](/claim/clm_AF69CE9481C2.md)
  sources: https://www.amgen.com/about/amgen-history

## Questions this record answers

### What is Amgen's current founding date?

April 8, 1980, dated April 8, 1980, from a primary source (amgen.com). The record asserts this claim as of November 11, 2026 (status valid, confidence 0.95).


## Read on

- This page: /record/amgen/founded (markdown: /record/amgen/founded.md)
- Entity twin: /record/amgen.md · timeline: /timelines/amgen.md
- Every company's founding date: /facts/founded.md

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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.