Christopher Harborne, identified in the source as a Tether investor, ranked sixth on the Sunday Times Rich List 2026 published on May 15, with an estimated fortune of £18.2 billion. At the same time, the reporting links his appearance on the rich list to scrutiny surrounding a reported $6.7 million gift to Reform UK involving Nigel Farage. One source says Parliament opened a probe into Farage, while another refers more generally to scrutiny and does not specify the reviewing body. The available information does not provide further details on the scope, timing, structure, or findings of the review.