John MacMillan

John MacMillan is a U.S.-based billionaire associated with Minnesota, born in 1949, with an estimated net worth of ~$1.7B. Available data shows political contributions activity in late 2024 through 2025 and multiple Macmillan-named private foundations with reported assets and grantmaking figures. RTB FEC ProPublica 990

Philanthropy

ProPublica-reported IRS Form 990 filings show three Macmillan-named foundations with combined reported assets of $111,127,775 and total grants paid of $0 in the available records. The Katherine Wells Macmillan Foundation (Minneapolis, MN) reported $110,762,761 in assets in tax year 2023, with $0 grants paid, $41,837,081 in revenue, and $4,928,838 in expenses. The Donald A Macmillan Foundation (Dallas, TX) reported $365,014 in assets in tax year 2023 and also reported $0 grants paid; a Valerie Macmillan Foundation entry (Yuba City, CA) shows $0 assets/revenue/expenses and no tax year listed in the provided data. ProPublica 990

Political Activity

FEC data shows 100 contributions totaling $5,896.03 from 2024-10-30 to 2025-12-10. The top recipients by amount were ActBlue ($2,460.83), Harris for President ($1,700), HMP ($700), DNC Services Corp / Democratic National Committee ($622), and DSCC ($215). By party coding in the dataset, $2,537 was categorized as Democratic and $3,359.03 was categorized as Unknown. FEC

In the News

A NewsAPI search returned 7 articles from 2026-02-06 to 2026-02-23 mentioning “John MacMillan,” including items about book-to-movie adaptations (Yahoo) and a sports profile (The Kingston Whig-Standard). Other headlines in the set include a report about a football club appointing a “John MacMillan” as chairman (Express & Star) and several UK-focused community/charity-related stories. These headlines may refer to different individuals with the same name and are not independently linked to the Minnesota-based person in the provided data. NewsAPI