S. Robson Walton

S. Robson Walton (born 1944) is an American billionaire and heir in the United States with an estimated net worth of ~$44.3B. SEC EDGAR data links him to Walmart Inc. (WMT), a retail “variety stores” company, and shows extensive insider-reporting activity connected to Walmart. Wikidata SEC EDGAR

Business & SEC Activity

SEC EDGAR associates Walton with Walmart Inc. (WMT) and shows 861 insider filings among the dataset, with recent filings including Form 4 and Form 144 in late February and early March 2026. Form 4 is used to report insiders’ changes in ownership (such as buys, sells, or grants) of a company’s securities, while Form 144 is a notice related to the planned sale of restricted or control securities. The SEC EDGAR dataset also lists related entities including “WALTON S ROBSON” and “Rob Walton Foundation,” and includes First Solar, Inc. (FSLR) among associated companies. SEC EDGAR

Philanthropy

ProPublica 990 data lists three foundations with the Walton name reporting $0 grants paid in the available tax years: Walton Foundation (PA, 2023), Walton Robotics Foundation (GA, 2023), and Walton Avenue Foundation (CA, 2015). Across these filings, total reported foundation assets sum to 883,088 and total grants paid sum to 0. ProPublica 990

Political Activity

FEC data shows 100 contributions totaling $3,334,312.36 from 2024-08-12 to 2025-12-04, with the largest amounts going to Americans for Prosperity Action, Inc. ($2,000,000) and Fix Washington PAC ($500,000). The party breakdown reports $225,612.36 to Republican recipients, $17,100 to Democratic recipients, $3,500 to independent recipients, and $3,088,100 categorized as PAC/Other. FEC