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Billionaire Index

A daily ranking of the world's richest people

Last updated: November 11, 2026 · $11.70T tracked

Methodology

No. 301United States

Charlie Mills

Medical supplies · Winnetka, Illinois

Net worth

$11.5B

Today

+$97M+0.85%

Past month

+$540M+4.94%

As of Nov 11, 2026, 1:50 PM EST

Charlie Mills is chairman of Illinois-based medical supplies giant Medline, which his father and uncle founded in 1966. Mills and his extended family, which includes four other billionaires, own roughly 18% of the company, which IPO'd on the Nasdaq in December 2025 and ended its first trading day with a market cap of more than $55 billion. The Mills family previously sold 79% of Medline to a group of private equity firms in a leveraged buyout that valued the company at more than $30 billion in 2021. Charlie Mills served as Medline's CEO for 26 years until 2023, while his cousin Andy Mills served as president during that same period. Andy Mills also still sits on the company's board. Andy Mills' brother-in-law Jim Abrams served as chief operating officer of Medline from 1997 to 2023. The company is now run by non-family executives.

Net worth over time

+4.94%+$540M over the past month
$11B$11B$11B
Oct 12Nov 11

Principal holdings

2 positions
CompanyShareValue

Private and other holdings

69.3%$8.0B

Medline Inc.

NASDAQ: MDLN

30.7%$3.5B