# Hamilton E. James chair roles

entity: /record/hamilton-e-james.md  
predicate: chair_of  
page: /record/hamilton-e-james/chair_of  
as_of: 2026-11-09  
cite: AsOf. "Hamilton E. James chair of: Costco", undated. Claim clm_0E2E445084F6, https://asof.is/claim/clm_0E2E445084F6, accessed 2026-11-09. Source: https://www.sec.gov/Archives/edgar/data/909832/000090983226000093/cost-20260830.htm.  

As of November 9, 2026, the AsOf record says Hamilton E. James is chair of Costco, from a primary source (sec.gov).

1 claim on Hamilton E. James's chair roles, 1 open and 0 superseded, each dated and sourced; a replaced value is closed with an end date, never deleted.

## Current chair roles

What the record asserts on 2026-11-09.

- [Hamilton E. James](/record/hamilton-e-james.md) | chair_of | [Costco](/record/costco.md) | valid undated to present | conf 0.95 | valid | [clm_0E2E445084F6](/claim/clm_0E2E445084F6.md)
  sources: https://www.sec.gov/Archives/edgar/data/909832/000090983226000093/cost-20260830.htm

## Every dated value

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 Superseded claims stay visible.

- [Hamilton E. James](/record/hamilton-e-james.md) | chair_of | [Costco](/record/costco.md) | valid undated to present | conf 0.95 | valid | [clm_0E2E445084F6](/claim/clm_0E2E445084F6.md)
  sources: https://www.sec.gov/Archives/edgar/data/909832/000090983226000093/cost-20260830.htm

## Questions this record answers

### What is Hamilton E. James chair of?

Costco, as the record asserts on November 9, 2026, from a primary source (sec.gov).


## Read on

- This page: /record/hamilton-e-james/chair_of (markdown: /record/hamilton-e-james/chair_of.md)
- Entity twin: /record/hamilton-e-james.md · timeline: /timelines/hamilton-e-james.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.