Walton, worth nearly $146 billion according to Forbes, purchased the stake at a $2 billion franchise valuation, with proceeds primarily funding Chase Field renovations. The team has committed $250 million toward ballpark improvements, also funded through taxpayer dollars.
The 81-year-old Walmart heir is a limited partner with no decision-making responsibilities in the organization. The transaction, which occurred in 2022, was never made public by the Diamondbacks.