James Duff

James Duff is a U.S.-based billionaire from Mississippi in the diversified industry, born in 1961, with an estimated net worth of ~$4.5B. SEC records show he is associated with multiple public-company entities in mining and other sectors, including Goldrich Mining Co and U S Gold Corp. RTB SEC EDGAR

Business & SEC Activity

SEC EDGAR lists James K. Duff (personal CIK 0001252413) with 21 insider filings, including Forms 4, 4/A, and 5. Form 4 filings generally report changes in an insider’s ownership (like buys, sells, or option activity), Form 4/A amends a prior Form 4, and Form 5 is an annual statement for certain reportable transactions. His SEC entity search results also connect to companies including Goldrich Mining Co (GRMC), U S Gold Corp, Minera Andes Inc, and Frozen Food Express Industries Inc. SEC EDGAR

Philanthropy

ProPublica-reported 990 filings show three Duff-related private foundations with combined assets of $1,141,310 and $0 in grants paid across the listed tax years. These include the Duff Family Foundation (MS, tax year 2023, assets $917,577, grants paid $0), the Duff Family Foundation (OH, tax year 2020, assets $126,815, grants paid $0), and the William Duff & Phoebe Duff Private Foundation (FL, tax year 2015, assets $96,918, grants paid $0). Across these filings, total reported grants paid are $0 despite ongoing revenues and expenses. ProPublica 990

Political Activity

FEC data shows 100 contributions totaling $2,922.63 from 2025-10-24 to 2025-12-31, with top recipients including ActBlue ($803), BMO Financial Corp Good Governance Fund: Federal (BMO PAC) ($769.20), and WinRed ($468.96). The party breakdown is reported as $25 to Democrats, $23.75 to Republicans, $25 unknown, and $2,848.88 to PAC/Other, indicating most dollars went to PAC/Other rather than directly to party-coded recipients. FEC