# John Brennan

> American businessperson and board member, Chairman Emeritus and Senior Advisor of The Vanguard Group, Inc., director at American Express

**Wikidata**: [Q6223068](https://www.wikidata.org/wiki/Q6223068)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/John_J._Brennan_(businessman))  
**Source**: https://4ort.xyz/entity/john-brennan